08:38:13

#ps lax

F   UID   PID  PPID PRI  NI    VSZ   RSS WCHAN  STAT TTY        TIME COMMAND
4     0     1     0  20   0  10648   836 -      Ss   ?          0:09 init [2]
1     0     2     0  20   0      0     0 -      S    ?          0:00 [kthreadd]
1     0     3     2  20   0      0     0 -      S    ?          0:03 [ksoftirqd/
1     0     5     2  20   0      0     0 -      S    ?          0:00 [kworker/u:
1     0     6     2 -100  -      0     0 -      S    ?          0:00 [migration/
5     0     7     2 -100  -      0     0 -      S    ?          0:05 [watchdog/0
1     0     8     2   0 -20      0     0 -      S<   ?          0:00 [cpuset]
1     0     9     2   0 -20      0     0 -      S<   ?          0:00 [khelper]
5     0    10     2  20   0      0     0 -      S    ?          0:00 [kdevtmpfs]
...
1     0 18522     1  20   0  18168   464 -      S    ?          0:00 script -f -
0     0 18523 18522  20   0  23992  2524 -      Ss   pts/3      0:00 l3script
0     0 19230 18523  20   0  18720  1628 -      S+   pts/3      0:00 man test
0     0 19239 19230  20   0  10048   912 -      S+   pts/3      0:00 pager -s
4     0 22885  2296  20   0  71292  3696 -      Ss   ?          0:00 sshd: root@
4     0 22887 22885  20   0  22180  2808 -      Ss   pts/4      0:00 -bash
0     0 22932 22887  20   0  18164   844 -      S+   pts/4      0:00 script -f -
1     0 22963 22932  20   0  18168   472 -      S+   pts/4      0:00 script -f -
0     0 22964 22963  20   0  21712  2320 -      Ss   pts/5      0:00 l3script
4     0 22993 22964  20   0  10536   836 -      R+   pts/5      0:00 ps lax

08:38:18

#ps la

F   UID   PID  PPID PRI  NI    VSZ   RSS WCHAN  STAT TTY        TIME COMMAND
4     0  2320     1  20   0  18368   972 -      Ss+  tty1       0:00 /sbin/getty
4     0  2321     1  20   0  18368   972 -      Ss+  tty2       0:00 /sbin/getty
4     0  2322     1  20   0  18368   968 -      Ss+  tty3       0:00 /sbin/getty
4     0  2323     1  20   0  18368   976 -      Ss+  tty4       0:00 /sbin/getty
4     0  2324     1  20   0  18368   972 -      Ss+  tty5       0:00 /sbin/getty
4     0  2325     1  20   0  18368   964 -      Ss+  tty6       0:00 /sbin/getty
4     0  9541  9540  20   0  24104  2616 -      Ss   pts/1      0:00 l3script
1     0 10519  9541  20   0  24104  1312 -      S+   pts/1      0:00 l3script
0     0 10527 10519  20   0  33732  2980 -      S+   pts/1      0:00 /usr/bin/vi
0     0 18523 18522  20   0  23992  2524 -      Ss   pts/3      0:00 l3script
0     0 19230 18523  20   0  18720  1628 -      S+   pts/3      0:00 man test
0     0 19239 19230  20   0  10048   912 -      S+   pts/3      0:00 pager -s
4     0 22887 22885  20   0  22180  2808 -      Ss   pts/4      0:00 -bash
0     0 22932 22887  20   0  18164   844 -      S+   pts/4      0:00 script -f -
1     0 22963 22932  20   0  18168   472 -      S+   pts/4      0:00 script -f -
0     0 22964 22963  20   0  21712  2320 -      Ss   pts/5      0:00 l3script
0  1001 23004 23003  20   0  22596  3192 -      Ss+  pts/6      0:00 -bash
4     0 23085 22964  20   0  10536   836 -      R+   pts/5      0:00 ps la

08:42:03

#ps lax

F   UID   PID  PPID PRI  NI    VSZ   RSS WCHAN  STAT TTY        TIME COMMAND
4     0     1     0  20   0  10648   836 -      Ss   ?          0:09 init [2]
1     0     2     0  20   0      0     0 -      S    ?          0:00 [kthreadd]
1     0     3     2  20   0      0     0 -      S    ?          0:03 [ksoftirqd/
1     0     5     2  20   0      0     0 -      S    ?          0:00 [kworker/u:
1     0     6     2 -100  -      0     0 -      S    ?          0:00 [migration/
5     0     7     2 -100  -      0     0 -      S    ?          0:05 [watchdog/0
1     0     8     2   0 -20      0     0 -      S<   ?          0:00 [cpuset]
1     0     9     2   0 -20      0     0 -      S<   ?          0:00 [khelper]
5     0    10     2  20   0      0     0 -      S    ?          0:00 [kdevtmpfs]
...
0     0 19239 19230  20   0  10048   912 -      S+   pts/3      0:00 pager -s
4     0 22885  2296  20   0  71292  3696 -      Ss   ?          0:00 sshd: root@
4     0 22887 22885  20   0  22180  2808 -      Ss   pts/4      0:00 -bash
0     0 22932 22887  20   0  18164   844 -      S+   pts/4      0:00 script -f -
1     0 22963 22932  20   0  18168   472 -      S+   pts/4      0:00 script -f -
0     0 22964 22963  20   0  21712  2320 -      Ss   pts/5      0:00 l3script
4     0 23001  2296  20   0  71292  3616 -      Ss   ?          0:00 sshd: stude
5  1001 23003 23001  20   0  71292  1764 -      S    ?          0:00 sshd: stude
0  1001 23004 23003  20   0  22596  3192 -      Ss+  pts/6      0:00 -bash
4     0 23093 22964  20   0  10536   840 -      R+   pts/5      0:00 ps lax

08:42:07

#ps lax

F   UID   PID  PPID PRI  NI    VSZ   RSS WCHAN  STAT TTY        TIME COMMAND
4     0     1     0  20   0  10648   836 -      Ss   ?          0:09 init [2]
1     0     2     0  20   0      0     0 -      S    ?          0:00 [kthreadd]
1     0     3     2  20   0      0     0 -      S    ?          0:03 [ksoftirqd/
1     0     5     2  20   0      0     0 -      S    ?          0:00 [kworker/u:
1     0     6     2 -100  -      0     0 -      S    ?          0:00 [migration/
5     0     7     2 -100  -      0     0 -      S    ?          0:05 [watchdog/0
1     0     8     2   0 -20      0     0 -      S<   ?          0:00 [cpuset]
1     0     9     2   0 -20      0     0 -      S<   ?          0:00 [khelper]
5     0    10     2  20   0      0     0 -      S    ?          0:00 [kdevtmpfs]
...
4     0 22885  2296  20   0  71292  3696 -      Ss   ?          0:00 sshd: root@
4     0 22887 22885  20   0  22180  2808 -      Ss   pts/4      0:00 -bash
0     0 22932 22887  20   0  18164   844 -      S+   pts/4      0:00 script -f -
1     0 22963 22932  20   0  18168   472 -      S+   pts/4      0:00 script -f -
0     0 22964 22963  20   0  21712  2320 -      Ss   pts/5      0:00 l3script
4     0 23001  2296  20   0  71292  3616 -      Ss   ?          0:00 sshd: stude
5  1001 23003 23001  20   0  71292  1764 -      S    ?          0:00 sshd: stude
0  1001 23004 23003  20   0  22596  3192 -      Ss   pts/6      0:00 -bash
0     0 23101 23004  20   0  33128  1260 -      S+   pts/6      0:00 passwd
4     0 23102 22964  20   0  10536   836 -      R+   pts/5      0:00 ps lax

08:42:24

#ps u -u student

USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
student  23003  0.0  0.3  71292  1764 ?        S    09:41   0:00 sshd: student@pts/6
student  23004  0.0  0.6  22596  3192 pts/6    Ss   09:41   0:00 -bash

08:44:00

#ps

  PID TTY          TIME CMD
22964 pts/5    00:00:00 l3script
23120 pts/5    00:00:00 ps

08:44:18

#ps -l

F S   UID   PID  PPID  C PRI  NI ADDR SZ WCHAN  TTY          TIME CMD
0 S     0 22964 22963  0  80   0 -  5428 -      pts/5    00:00:00 l3script
4 R     0 23128 22964  0  80   0 -  2634 -      pts/5    00:00:00 ps

08:44:23

#ps u -U student

USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
student  23003  0.0  0.3  71292  1764 ?        S    09:41   0:00 sshd: student@pts/6
student  23004  0.0  0.6  22596  3192 pts/6    Ss   09:41   0:00 -bash
root     23101  0.0  0.2  33128  1260 pts/6    S+   09:42   0:00 passwd

08:44:35

#ps --help

Usage:
 ps [options]
 Try 'ps --help <simple|list|output|threads|misc|all>'
  or 'ps --help <s|l|o|t|m|a>'
 for additional help text.
For more details see ps(1).

08:44:50

#help ps

l3script: help: no help topics match `ps'.  Try `help help' or `man -k ps' or `info ps'.

08:50:49

#netstat -tanp

Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      2296/sshd
tcp        0      0 127.0.0.1:25            0.0.0.0:*               LISTEN      2263/exim4
tcp        0    464 192.168.13.4:22         192.168.15.102:53169    ESTABLISHED 22885/4
tcp        0      0 192.168.13.4:22         192.168.15.102:59901    ESTABLISHED 23001/sshd: student
tcp6       0      0 :::22                   :::*                    LISTEN      2296/sshd
tcp6       0      0 ::1:25                  :::*                    LISTEN      2263/exim4

08:50:56

#ps alx |grep -sshd

grep: Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÑ ÑÑÐµÐ±ÑÐµÑÑÑ Ð°ÑÐ³ÑÐ¼ÐµÐ½Ñ Â«dÂ»
ÐÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ðµ: grep [ÐÐÐ ÐÐÐÐ¢Ð ]â¦ Ð¨ÐÐÐÐ¤ÐÐÐ
rep --helpÂ» Ð´Ð»Ñ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ñ Ð±Ð¾Ð»ÐµÐµ Ð¿Ð¾Ð´ÑÐ¾Ð±Ð½Ð¾Ð³Ð¾ Ð¾Ð¿Ð¸ÑÐ°Ð½Ð¸Ñ.

08:51:16

#ps alx |grep sshd

5     0  2296     1  20   0  49932  1252 -      Ss   ?          0:00 /usr/sbin/sshd
4     0 22885  2296  20   0  71292  3696 -      Ss   ?          0:00 sshd: root@pts/4
4     0 23001  2296  20   0  71292  3616 -      Ss   ?          0:00 sshd: student [priv]
5  1001 23003 23001  20   0  71292  1764 -      S    ?          0:00 sshd: student@pts/6
0     0 23200 22964  20   0   9972   868 -      S+   pts/5      0:00 grep sshd

08:53:55

#ps l -U student

F   UID   PID  PPID PRI  NI    VSZ   RSS WCHAN  STAT TTY        TIME COMMAND
5  1001 23003 23001  20   0  71292  1764 -      S    ?          0:00 sshd: student@pts/6
0  1001 23004 23003  20   0  22596  3192 -      Ss   pts/6      0:00 -bash
0     0 23101 23004  20   0  33128  1260 -      S+   pts/6      0:00 passwd

08:54:50

#ps l -p 23001

F   UID   PID  PPID PRI  NI    VSZ   RSS WCHAN  STAT TTY        TIME COMMAND
4     0 23001  2296  20   0  71292  3616 -      Ss   ?          0:00 sshd: student [priv]

08:55:46

#ps l -p 2296

F   UID   PID  PPID PRI  NI    VSZ   RSS WCHAN  STAT TTY        TIME COMMAND
5     0  2296     1  20   0  49932  1252 -      Ss   ?          0:00 /usr/sbin/sshd

08:57:20

#ps l -p 1

F   UID   PID  PPID PRI  NI    VSZ   RSS WCHAN  STAT TTY        TIME COMMAND
4     0     1     0  20   0  10648   836 -      Ss   ?          0:09 init [2]

08:57:27

#ps l -p 1

F   UID   PID  PPID PRI  NI    VSZ   RSS WCHAN  STAT TTY        TIME COMMAND
4     0     1     0  20   0  10648   836 -      Ss   ?          0:09 init [2]

09:01:06

#ps l -U student

F   UID   PID  PPID PRI  NI    VSZ   RSS WCHAN  STAT TTY        TIME COMMAND
5  1001 23003 23001  20   0  71292  1764 -      S    ?          0:00 sshd: student@pts/6
0  1001 23004 23003  20   0  22596  3264 -      Ss+  pts/6      0:00 -bash
0  1001 23248 23004  20   0   7708   320 -      S    pts/6      0:00 sleep 1000

09:07:51

#ps l -U student

F   UID   PID  PPID PRI  NI    VSZ   RSS WCHAN  STAT TTY        TIME COMMAND
5  1001 23003 23001  20   0  71292  1764 -      S    ?          0:00 sshd: student@pts/6
0  1001 23004 23003  20   0  22596  3264 -      Ss+  pts/6      0:00 -bash
0  1001 23248 23004  20   0   7708   320 -      S    pts/6      0:00 sleep 1000

09:10:41

#kill 23248

09:10:59

#ps l -U student

F   UID   PID  PPID PRI  NI    VSZ   RSS WCHAN  STAT TTY        TIME COMMAND
5  1001 23003 23001  20   0  71292  1764 -      S    ?          0:00 sshd: student@pts/6
0  1001 23004 23003  20   0  22596  3264 -      Ss+  pts/6      0:00 -bash

09:12:59

#kill 23280

09:13:22

#ps l -U student

F   UID   PID  PPID PRI  NI    VSZ   RSS WCHAN  STAT TTY        TIME COMMAND
5  1001 23003 23001  20   0  71292  1764 -      S    ?          0:00 sshd: student@pts/6
0  1001 23004 23003  20   0  22784  3296 -      Ss   pts/6      0:00 -bash
0  1001 23280 23004  20   0  22184  2852 -      S+   pts/6      0:00 bash
0  1001 23322 23280  20   0   7708   320 -      S    pts/6      0:00 sleep 1000

09:13:26

#kill -9 23280

09:16:27

#ps l -U student

F   UID   PID  PPID PRI  NI    VSZ   RSS WCHAN  STAT TTY        TIME COMMAND
5  1001 23003 23001  20   0  71292  1764 -      S    ?          0:00 sshd: student@pts/6
0  1001 23004 23003  20   0  22784  3296 -      Ss+  pts/6      0:00 -bash
0  1001 23322     1  20   0   7708   320 -      S    pts/6      0:00 sleep 1000

09:16:31

#ps ax -o "%a %u %U %y"

COMMAND                     RUSER    USER     TTY
init [2]                    root     root     ?
[kthreadd]                  root     root     ?
[ksoftirqd/0]               root     root     ?
[kworker/u:0]               root     root     ?
[migration/0]               root     root     ?
[watchdog/0]                root     root     ?
[cpuset]                    root     root     ?
[khelper]                   root     root     ?
[kdevtmpfs]                 root     root     ?
...
sshd: root@pts/4            root     root     ?
-bash                       root     root     pts/4
script -f -c l3script -q /r root     root     pts/4
script -f -c l3script -q /r root     root     pts/4
l3script                    root     root     pts/5
sshd: student [priv]        root     root     ?
sshd: student@pts/6         student  student  ?
-bash                       student  student  pts/6
sleep 1000                  student  student  pts/6
ps ax -o %a %u %U %y        root     root     pts/5

09:20:54

#ps ax -o "%a %u %U %y"

COMMAND                     RUSER    USER     TTY
init [2]                    root     root     ?
[kthreadd]                  root     root     ?
[ksoftirqd/0]               root     root     ?
[kworker/u:0]               root     root     ?
[migration/0]               root     root     ?
[watchdog/0]                root     root     ?
[cpuset]                    root     root     ?
[khelper]                   root     root     ?
[kdevtmpfs]                 root     root     ?
...
-bash                       root     root     pts/4
script -f -c l3script -q /r root     root     pts/4
script -f -c l3script -q /r root     root     pts/4
l3script                    root     root     pts/5
sshd: student [priv]        root     root     ?
sshd: student@pts/6         student  student  ?
-bash                       student  student  pts/6
sleep 1000                  student  student  pts/6
passwd                      student  root     pts/6
ps ax -o %a %u %U %y        root     root     pts/5

09:21:21

#ps ax -o "%a %u %U %y" | awk '$2!=$3'

COMMAND                     RUSER    USER     TTY
init [2]                    root     root     ?
udevd --daemon              root     root     ?
/usr/sbin/rsyslogd -c5      root     root     ?
/usr/sbin/exim4 -bd -q30m   101      101      ?
/sbin/getty 38400 tty1      root     root     tty1
/sbin/getty 38400 tty2      root     root     tty2
/sbin/getty 38400 tty3      root     root     tty3
/sbin/getty 38400 tty4      root     root     tty4
/sbin/getty 38400 tty5      root     root     tty5
...
pager -s                    root     root     pts/3
sshd: root@pts/4            root     root     ?
script -f -c l3script -q /r root     root     pts/4
script -f -c l3script -q /r root     root     pts/4
sshd: student [priv]        root     root     ?
sshd: student@pts/6         student  student  ?
sleep 1000                  student  student  pts/6
passwd                      student  root     pts/6
ps ax -o %a %u %U %y        root     root     pts/5
awk $2!=$3                  root     root     pts/5

09:22:37

#ps ax -o "%u %U %y %a" | awk '$2!=$3'

RUSER    USER     TTY      COMMAND
root     root     ?        init [2]
root     root     ?        [kthreadd]
root     root     ?        [ksoftirqd/0]
root     root     ?        [kworker/u:0]
root     root     ?        [migration/0]
root     root     ?        [watchdog/0]
root     root     ?        [cpuset]
root     root     ?        [khelper]
root     root     ?        [kdevtmpfs]
...
root     root     pts/4    script -f -c l3script -q /root/.lilalo//1283021757248215014-1414132290.script
root     root     pts/4    script -f -c l3script -q /root/.lilalo//1283021757248215014-1414132290.script
root     root     pts/5    l3script
root     root     ?        sshd: student [priv]
student  student  ?        sshd: student@pts/6
student  student  pts/6    -bash
student  student  pts/6    sleep 1000
student  root     pts/6    passwd
root     root     pts/5    ps ax -o %u %U %y %a
root     root     pts/5    awk $2!=$3

09:23:07

#ps ax -o "%u %U %y %a" | awk '$1!=$2'

RUSER    USER     TTY      COMMAND
student  root     pts/6    passwd

09:23:18

#top

top - 10:25:11 up 6 days, 15:42,  2 users,  load average: 0,00, 0,01, 0,05
Tasks:  63 total,   2 running,  61 sleeping,   0 stopped,   0 zombie
%Cpu(s):  1,3 us,  0,0 sy,  0,0 ni, 98,7 id,  0,0 wa,  0,0 hi,  0,0 si,  0,0 st
KiB Mem:    507368 total,   399856 used,   107512 free,   141524 buffers
KiB Swap:        0 total,        0 used,        0 free,   139800 cached
  PID USER      PR  NI  VIRT  RES  SHR S  %CPU %MEM    TIME+  COMMAND
    1 root      20   0 10648  836  696 S   0,0  0,2   0:09.39 init
    2 root      20   0     0    0    0 S   0,0  0,0   0:00.00 kthreadd
    3 root      20   0     0    0    0 S   0,0  0,0   0:03.94 ksoftirqd/0
    5 root      20   0     0    0    0 S   0,0  0,0   0:00.00 kworker/u:0
...
  146 root       0 -20     0    0    0 S   0,0  0,0   0:00.00 ext4-dio-unwrit
  289 root      20   0 21248 1220  784 S   0,0  0,2   0:00.04 udevd
  407 root       0 -20     0    0    0 S   0,0  0,0   0:00.00 kpsmoused
 1918 root      20   0 52772 1632 1204 S   0,0  0,3   0:00.07 rsyslogd
 1948 root      20   0  4116  656  512 S   0,0  0,1   0:00.00 acpid
 1990 root      20   0 22492  892  688 S   0,0  0,2   0:00.79 cron
 2263 Debian-e  20   0 46808 1036  584 S   0,0  0,2   0:00.17 exim4
 2296 root      20   0 49932 1252  640 S   0,0  0,2   0:00.02 sshd
 2320 root      20   0 18368  972  812 S   0,0  0,2   0:00.04 getty
 2321 root      20   0 18368  972  812 S   0,0  0,2   0:00.00 getty

09:26:40

#\top help

        procps-ng version 3.3.3
usage:  top -hv | -bcHiSs -d delay -n limit -u|U user | -p pid[,pid] -w [cols]

09:26:47

#top help

        procps-ng version 3.3.3
usage:  top -hv | -bcHiSs -d delay -n limit -u|U user | -p pid[,pid] -w [cols]

09:26:51

#help top

l3script: help: no help topics match `top'.  Try `help help' or `man -k top' or `info top'.

09:27:12

#top

top - 10:27:19 up 6 days, 15:44,  2 users,  load average: 0,15, 0,07, 0,06
Tasks:  63 total,   1 running,  62 sleeping,   0 stopped,   0 zombie
%Cpu(s):  0,0 us,  0,3 sy,  0,0 ni, 99,7 id,  0,0 wa,  0,0 hi,  0,0 si,  0,0 st
KiB Mem:    507368 total,   400376 used,   106992 free,   141548 buffers
KiB Swap:        0 total,        0 used,        0 free,   140080 cached
  PID USER      PR  NI  VIRT  RES  SHR S  %CPU %MEM    TIME+  COMMAND
    1 root      20   0 10648  836  696 S   0,0  0,2   0:09.39 init
    2 root      20   0     0    0    0 S   0,0  0,0   0:00.00 kthreadd
    3 root      20   0     0    0    0 S   0,0  0,0   0:03.94 ksoftirqd/0
    5 root      20   0     0    0    0 S   0,0  0,0   0:00.00 kworker/u:0
...
 3368 root      20   0 74680  31m 1724 S   0,0  6,3  30:10.64 l3-agent
22885 root      20   0 71292 3696 2896 S   0,0  0,7   0:00.29 sshd
23472 root      20   0 25284 1548 1128 R   0,3  0,3   0:00.03 top
top - 10:28:43 up 6 days, 15:45,  2 users,  load average: 0,09, 0,07, 0,06
%Cpu(s):  0,0 us,  0,3 sy,  0,0 ni, 99,7 id,  0,0 wa,  0,0 hi,  0,0 si,  0,0 st
KiB Mem:    507368 total,   400352 used,   107016 free,   141556 buffers
KiB Swap:        0 total,        0 used,        0 free,   140148 cached
23472 root      20   0 25284 1548 1128 R   0,0  0,3   0:00.03 top
 3368 root      20   0 74680  31m 1724 S   0,0  6,3  30:12.55 l3-agent
22963 root      20   0 18168  472  308 S   0,3  0,1   0:00.11 script

09:28:44

#fuser -v ~student/test

09:32:05

#fuser -v ~student/test

09:41:50

#fuser -v ~student/test.swp

Указанное имя файла /home/student/test.swp не существует.

09:42:03

#fuser -v /lib/x86_64-linux-gnu/libpam

libpamc.so.0           libpam_misc.so.0       libpam.so.0
libpamc.so.0.82.1      libpam_misc.so.0.82.0  libpam.so.0.83.0

09:42:03

#fuser -v /lib/x86_64-linux-gnu/libpam

libpamc.so.0           libpam_misc.so.0       libpam.so.0
libpamc.so.0.82.1      libpam_misc.so.0.82.0  libpam.so.0.83.0

09:42:03

#fuser -v /lib/x86_64-linux-gnu/libpam.so.0

                     ÐÐÐID ÐÐÐ¡Ð¢Ð£Ð ÐÐÐÐÐÐÐ
/lib/x86_64-linux-gnu/libpam.so.0.83.0:
                     root       1990 ....m cron
                     root       2296 ....m sshd
                     root      22885 ....m sshd
                     root      23001 ....m sshd
                     student   23003 ....m sshd
                     root      23496 ....m passwd

09:43:00

#man useradd

09:47:36

#kill -l

 1) SIGHUP       2) SIGINT       3) SIGQUIT      4) SIGILL       5) SIGTRAP
 6) SIGABRT      7) SIGBUS       8) SIGFPE       9) SIGKILL     10) SIGUSR1
11) SIGSEGV     12) SIGUSR2     13) SIGPIPE     14) SIGALRM     15) SIGTERM
16) SIGSTKFLT   17) SIGCHLD     18) SIGCONT     19) SIGSTOP     20) SIGTSTP
21) SIGTTIN     22) SIGTTOU     23) SIGURG      24) SIGXCPU     25) SIGXFSZ
26) SIGVTALRM   27) SIGPROF     28) SIGWINCH    29) SIGIO       30) SIGPWR
31) SIGSYS      34) SIGRTMIN    35) SIGRTMIN+1  36) SIGRTMIN+2  37) SIGRTMIN+3
38) SIGRTMIN+4  39) SIGRTMIN+5  40) SIGRTMIN+6  41) SIGRTMIN+7  42) SIGRTMIN+8
43) SIGRTMIN+9  44) SIGRTMIN+10 45) SIGRTMIN+11 46) SIGRTMIN+12 47) SIGRTMIN+13
48) SIGRTMIN+14 49) SIGRTMIN+15 50) SIGRTMAX-14 51) SIGRTMAX-13 52) SIGRTMAX-12
53) SIGRTMAX-11 54) SIGRTMAX-10 55) SIGRTMAX-9  56) SIGRTMAX-8  57) SIGRTMAX-7
58) SIGRTMAX-6  59) SIGRTMAX-5  60) SIGRTMAX-4  61) SIGRTMAX-3  62) SIGRTMAX-2
63) SIGRTMAX-1  64) SIGRTMAX

09:47:38

#kill -l1

l3script: kill: l1: недопустимая спецификация сигнала

09:47:46

#kill -l

 1) SIGHUP       2) SIGINT       3) SIGQUIT      4) SIGILL       5) SIGTRAP
 6) SIGABRT      7) SIGBUS       8) SIGFPE       9) SIGKILL     10) SIGUSR1
11) SIGSEGV     12) SIGUSR2     13) SIGPIPE     14) SIGALRM     15) SIGTERM
16) SIGSTKFLT   17) SIGCHLD     18) SIGCONT     19) SIGSTOP     20) SIGTSTP
21) SIGTTIN     22) SIGTTOU     23) SIGURG      24) SIGXCPU     25) SIGXFSZ
26) SIGVTALRM   27) SIGPROF     28) SIGWINCH    29) SIGIO       30) SIGPWR
31) SIGSYS      34) SIGRTMIN    35) SIGRTMIN+1  36) SIGRTMIN+2  37) SIGRTMIN+3
38) SIGRTMIN+4  39) SIGRTMIN+5  40) SIGRTMIN+6  41) SIGRTMIN+7  42) SIGRTMIN+8
43) SIGRTMIN+9  44) SIGRTMIN+10 45) SIGRTMIN+11 46) SIGRTMIN+12 47) SIGRTMIN+13
48) SIGRTMIN+14 49) SIGRTMIN+15 50) SIGRTMAX-14 51) SIGRTMAX-13 52) SIGRTMAX-12
53) SIGRTMAX-11 54) SIGRTMAX-10 55) SIGRTMAX-9  56) SIGRTMAX-8  57) SIGRTMAX-7
58) SIGRTMAX-6  59) SIGRTMAX-5  60) SIGRTMAX-4  61) SIGRTMAX-3  62) SIGRTMAX-2
63) SIGRTMAX-1  64) SIGRTMAX

09:47:50

#cat /proc/sys/kernel

cat: /proc/sys/kernel: Это каталог

09:53:24

#cat /proc/sys/kernel/

acct                         hung_task_warnings           perf_event_max_sample_rate   sched_rt_period_us
acpi_video_flags             io_delay_type                perf_event_mlock_kb          sched_rt_runtime_us
auto_msgmni                  keys/                        perf_event_paranoid          sched_shares_window
blk_iopoll                   kptr_restrict                pid_max                      sched_time_avg
bootloader_type              kstack_depth_to_print        poweroff_cmd                 sched_tunable_scaling
bootloader_version           max_lock_depth               print-fatal-signals          sched_wakeup_granularity_ns
cad_pid                      modprobe                     printk                       sem
cap_last_cap                 modules_disabled             printk_delay                 shmall
compat-log                   msgmax                       printk_ratelimit             shmmax
core_pattern                 msgmnb                       printk_ratelimit_burst       shmmni
core_pipe_limit              msgmni                       pty/                         shm_rmid_forced
core_uses_pid                ngroups_max                  random/                      softlockup_panic
ctrl-alt-del                 nmi_watchdog                 randomize_va_space           sysrq
dmesg_restrict               osrelease                    real-root-dev                tainted
domainname                   ostype                       sched_autogroup_enabled      threads-max
ftrace_dump_on_oops          overflowgid                  sched_child_runs_first       timer_migration
hostname                     overflowuid                  sched_domain/                unknown_nmi_panic
hotplug                      panic                        sched_latency_ns             usermodehelper/
hung_task_check_count        panic_on_io_nmi              sched_migration_cost         version
hung_task_panic              panic_on_oops                sched_min_granularity_ns     watchdog
hung_task_timeout_secs       panic_on_unrecovered_nmi     sched_nr_migrate             watchdog_thresh

09:53:24

#cat /proc/sys/kernel/pid_max

09:55:52

#vi /etc/sysctl.conf

--- /tmp/l3-saved-22964.755.10789	2014-10-24 10:56:44.737044760 +0300
+++ /etc/sysctl.conf	2014-10-24 10:59:07.321052328 +0300
@@ -7,7 +7,8 @@
 #kernel.domainname = example.com
 
 # Uncomment the following to stop low-level messages on console
-#kernel.printk = 3 4 1 3
+#kernen.nrintk = 3 4 1 3
+kernel.pid_max = 65536
 
 ##############################################################3
 # Functions previously found in netbase

09:59:07

#ps l -U student

F   UID   PID  PPID PRI  NI    VSZ   RSS WCHAN  STAT TTY        TIME COMMAND
5  1001 23003 23001  20   0  71292  1876 -      S    ?          0:00 sshd: student@pts/6
0  1001 23004 23003  20   0  22784  3356 -      Ss   pts/6      0:00 -bash
0  1001 23585 23004  20   0  22184  2780 -      S    pts/6      0:00 bash
0  1001 23689 23585  20   0  22184  2784 -      S+   pts/6      0:00 bash

09:59:58

#kill -1 23585

10:00:47

#echo $?

10:00:51

#netstat -tan

Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN
tcp        0      0 127.0.0.1:25            0.0.0.0:*               LISTEN
tcp        0    448 192.168.13.4:22         192.168.15.102:53169    ESTABLISHED
tcp        0      0 192.168.13.4:22         192.168.15.102:59901    ESTABLISHED
tcp6       0      0 :::22                   :::*                    LISTEN
tcp6       0      0 ::1:25                  :::*                    LISTEN

10:03:21

#netstat -tanp

Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      2296/sshd
tcp        0      0 127.0.0.1:25            0.0.0.0:*               LISTEN      2263/exim4
tcp        0    464 192.168.13.4:22         192.168.15.102:53169    ESTABLISHED 22885/4
tcp        0      0 192.168.13.4:22         192.168.15.102:59901    ESTABLISHED 23001/sshd: student
tcp6       0      0 :::22                   :::*                    LISTEN      2296/sshd
tcp6       0      0 ::1:25                  :::*                    LISTEN      2263/exim4

10:03:23

#мvi /etc/ssh/ssh

ssh_config              ssh_host_dsa_key        ssh_host_ecdsa_key      ssh_host_rsa_key
sshd_config             ssh_host_dsa_key.pub    ssh_host_ecdsa_key.pub  ssh_host_rsa_key.pub

10:03:23

#vi /etc/ssh/sshd_config

--- /tmp/l3-saved-22964.9213.17071	2014-10-24 11:06:13.061037982 +0300
+++ /etc/ssh/sshd_config	2014-10-24 11:07:58.769042730 +0300
@@ -5,7 +5,7 @@
 Port 22
 # Use these options to restrict which interfaces/protocols sshd will bind to
 #ListenAddress ::
-#ListenAddress 0.0.0.0
+ListenAddress 192.168.13.4
 Protocol 2
 # HostKeys for protocol version 2
 HostKey /etc/ssh/ssh_host_rsa_key

10:07:58

#ifconfig

eth0      Link encap:Ethernet  HWaddr 00:16:3e:00:00:04
          inet addr:192.168.13.4  Bcast:192.168.13.255  Mask:255.255.255.0
          inet6 addr: fe80::216:3eff:fe00:4/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:293961 errors:0 dropped:0 overruns:0 frame:0
          TX packets:381077 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:28257646 (26.9 MiB)  TX bytes:82432575 (78.6 MiB)
          Interrupt:72
lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

10:08:02

#vi /etc/ssh/sshd_config

10:08:42

#kill -l 2296

l3script: kill: 2296: недопустимая спецификация сигнала

10:09:27

#kill -1 2296

10:09:42

#ÑÑÐºÐservice ssh

[info] Usage: /etc/init.d/ssh {start|stop|reload|force-reload|restart|try-restart|status}.

10:10:56

#cat /etc/init.d/ssh

#! /bin/sh
### BEGIN INIT INFO
# Provides:             sshd
# Required-Start:       $remote_fs $syslog
# Required-Stop:        $remote_fs $syslog
# Default-Start:        2 3 4 5
# Default-Stop:
# Short-Description:    OpenBSD Secure Shell server
### END INIT INFO
set -e
...
        esac
        ;;
  status)
        status_of_proc -p /var/run/sshd.pid /usr/sbin/sshd sshd && exit 0 || exit $?
        ;;
  *)
        log_action_msg "Usage: /etc/init.d/ssh {start|stop|reload|force-reload|restart|try-restart|status}" || true
        exit 1
esac
exit 0

10:12:22

#зы дф

l3script: $'\320\267\321\213': команда не найдена

10:40:45

#ps la

F   UID   PID  PPID PRI  NI    VSZ   RSS WCHAN  STAT TTY        TIME COMMAND
4     0  2320     1  20   0  18368   972 -      Ss+  tty1       0:00 /sbin/getty 38400 tty1
4     0  2321     1  20   0  18368   972 -      Ss+  tty2       0:00 /sbin/getty 38400 tty2
4     0  2322     1  20   0  18368   968 -      Ss+  tty3       0:00 /sbin/getty 38400 tty3
4     0  2323     1  20   0  18368   976 -      Ss+  tty4       0:00 /sbin/getty 38400 tty4
4     0  2324     1  20   0  18368   972 -      Ss+  tty5       0:00 /sbin/getty 38400 tty5
4     0  2325     1  20   0  18368   964 -      Ss+  tty6       0:00 /sbin/getty 38400 tty6
4     0  9541  9540  20   0  24104  2616 -      Ss   pts/1      0:00 l3script
1     0 10519  9541  20   0  24104  1312 -      S+   pts/1      0:00 l3script
0     0 10527 10519  20   0  33732  2980 -      S+   pts/1      0:00 /usr/bin/vim 1.txt 2.txt
0     0 18523 18522  20   0  23992  2524 -      Ss   pts/3      0:00 l3script
0     0 19230 18523  20   0  18720  1628 -      S+   pts/3      0:00 man test
0     0 19239 19230  20   0  10048   912 -      S+   pts/3      0:00 pager -s
4     0 22887 22885  20   0  22180  2808 -      Ss   pts/4      0:00 -bash
0     0 22932 22887  20   0  18164   844 -      S+   pts/4      0:00 script -f -c l3script -q /root/.lilalo//1283021757248215
1     0 22963 22932  20   0  18168   472 -      S+   pts/4      0:00 script -f -c l3script -q /root/.lilalo//1283021757248215
4     0 22964 22963  20   0  23928  2580 -      Ss   pts/5      0:00 l3script
0  1001 23004 23003  20   0  22784  3368 -      Ss+  pts/6      0:00 -bash
4     0 23943 22964  20   0  10536   844 -      R+   pts/5      0:00 ps la

10:40:48

#nice -n -3 sleep 1000 &

[1] 23951

10:43:22

#renice 5 23951

23951 (process ID) old priority -3, new priority 5

10:44:08

#ps la

F   UID   PID  PPID PRI  NI    VSZ   RSS WCHAN  STAT TTY        TIME COMMAND
4     0  2320     1  20   0  18368   972 -      Ss+  tty1       0:00 /sbin/getty 38400 tty1
4     0  2321     1  20   0  18368   972 -      Ss+  tty2       0:00 /sbin/getty 38400 tty2
4     0  2322     1  20   0  18368   968 -      Ss+  tty3       0:00 /sbin/getty 38400 tty3
4     0  2323     1  20   0  18368   976 -      Ss+  tty4       0:00 /sbin/getty 38400 tty4
4     0  2324     1  20   0  18368   972 -      Ss+  tty5       0:00 /sbin/getty 38400 tty5
4     0  2325     1  20   0  18368   964 -      Ss+  tty6       0:00 /sbin/getty 38400 tty6
4     0  9541  9540  20   0  24104  2616 -      Ss   pts/1      0:00 l3script
1     0 10519  9541  20   0  24104  1312 -      S+   pts/1      0:00 l3script
0     0 10527 10519  20   0  33732  2980 -      S+   pts/1      0:00 /usr/bin/vim 1.txt 2.txt
0     0 18523 18522  20   0  23992  2524 -      Ss   pts/3      0:00 l3script
0     0 19230 18523  20   0  18720  1628 -      S+   pts/3      0:00 man test
0     0 19239 19230  20   0  10048   912 -      S+   pts/3      0:00 pager -s
4     0 22887 22885  20   0  22180  2808 -      Ss   pts/4      0:00 -bash
0     0 22932 22887  20   0  18164   844 -      S+   pts/4      0:00 script -f -c l3script -q /root/.lilalo//1283021757248215
1     0 22963 22932  20   0  18168   472 -      S+   pts/4      0:00 script -f -c l3script -q /root/.lilalo//1283021757248215
4     0 22964 22963  20   0  23928  2580 -      Ss   pts/5      0:00 l3script
0  1001 23004 23003  20   0  22784  3368 -      Ss+  pts/6      0:00 -bash
4     0 23951 22964  25   5   7708   324 -      SN   pts/5      0:00 sleep 1000
4     0 23977 22964  20   0  10536   836 -      R+   pts/5      0:00 ps la

10:44:15

#ps la | awk '$6>0'

F   UID   PID  PPID PRI  NI    VSZ   RSS WCHAN  STAT TTY        TIME COMMAND
4     0 23951 22964  25   5   7708   324 -      SN   pts/5      0:00 sleep 1000

10:45:46

#ps la | awk '$10~/N/'

4     0 23951 22964  25   5   7708   324 -      SN   pts/5      0:00 sleep 1000

10:46:09

#renice 5 -u student

1001 (user ID) old priority 0, new priority 5

10:46:59

#ps la

F   UID   PID  PPID PRI  NI    VSZ   RSS WCHAN  STAT TTY        TIME COMMAND
4     0  2320     1  20   0  18368   972 -      Ss+  tty1       0:00 /sbin/getty 38400 tty1
4     0  2321     1  20   0  18368   972 -      Ss+  tty2       0:00 /sbin/getty 38400 tty2
4     0  2322     1  20   0  18368   968 -      Ss+  tty3       0:00 /sbin/getty 38400 tty3
4     0  2323     1  20   0  18368   976 -      Ss+  tty4       0:00 /sbin/getty 38400 tty4
4     0  2324     1  20   0  18368   972 -      Ss+  tty5       0:00 /sbin/getty 38400 tty5
4     0  2325     1  20   0  18368   964 -      Ss+  tty6       0:00 /sbin/getty 38400 tty6
4     0  9541  9540  20   0  24104  2616 -      Ss   pts/1      0:00 l3script
1     0 10519  9541  20   0  24104  1312 -      S+   pts/1      0:00 l3script
0     0 10527 10519  20   0  33732  2980 -      S+   pts/1      0:00 /usr/bin/vim 1.txt 2.txt
0     0 18523 18522  20   0  23992  2524 -      Ss   pts/3      0:00 l3script
0     0 19230 18523  20   0  18720  1628 -      S+   pts/3      0:00 man test
0     0 19239 19230  20   0  10048   912 -      S+   pts/3      0:00 pager -s
4     0 22887 22885  20   0  22180  2808 -      Ss   pts/4      0:00 -bash
0     0 22932 22887  20   0  18164   844 -      S+   pts/4      0:00 script -f -c l3script -q /root/.lilalo//1283021757248215
1     0 22963 22932  20   0  18168   472 -      S+   pts/4      0:00 script -f -c l3script -q /root/.lilalo//1283021757248215
4     0 22964 22963  20   0  23928  2580 -      Ss   pts/5      0:00 l3script
0  1001 23004 23003  25   5  22784  3368 -      SNs+ pts/6      0:00 -bash
4     0 23951 22964  25   5   7708   324 -      SN   pts/5      0:00 sleep 1000
4     0 24011 22964  20   0  10536   840 -      R+   pts/5      0:00 ps la

10:47:38

#ps l -U student

F   UID   PID  PPID PRI  NI    VSZ   RSS WCHAN  STAT TTY        TIME COMMAND
5  1001 23003 23001  25   5  71292  1876 -      SN   ?          0:00 sshd: student@pts/6
0  1001 23004 23003  25   5  22784  3368 -      SNs+ pts/6      0:00 -bash

10:47:50

#ps l -U student

F   UID   PID  PPID PRI  NI    VSZ   RSS WCHAN  STAT TTY        TIME COMMAND
5  1001 24030 24028  20   0  71292  1760 -      S    ?          0:00 sshd: student@pts/6
0  1001 24031 24030  20   0  22596  3196 -      Ss+  pts/6      0:00 -bash

10:50:04

#ls /lib/x86_64-linux-gnu/security/

pam_access.so  pam_faildelay.so  pam_lastlog.so    pam_mkhomedir.so  pam_rhosts.so     pam_stress.so      pam_umask.so
pam_debug.so   pam_filter.so     pam_limits.so     pam_motd.so       pam_rootok.so     pam_succeed_if.so  pam_unix.so
pam_deny.so    pam_ftp.so        pam_listfile.so   pam_namespace.so  pam_securetty.so  pam_tally2.so      pam_userdb.so
pam_echo.so    pam_group.so      pam_localuser.so  pam_nologin.so    pam_selinux.so    pam_tally.so       pam_warn.so
pam_env.so     pam_issue.so      pam_loginuid.so   pam_permit.so     pam_sepermit.so   pam_time.so        pam_wheel.so
pam_exec.so    pam_keyinit.so    pam_mail.so       pam_pwhistory.so  pam_shells.so     pam_timestamp.so   pam_xauth.so

10:51:32

#vi /etc/security/limits.conf

--- /tmp/l3-saved-22964.20628.22917	2014-10-24 11:53:27.797045260 +0300
+++ /etc/security/limits.conf	2014-10-24 11:55:47.645057174 +0300
@@ -51,6 +51,7 @@
 #@faculty        hard    nproc           50
 #ftp             hard    nproc           0
 #ftp             -       chroot          /ftp
+student	hard	priority	5
 #@student        -       maxlogins       4
 
 # End of file

10:55:47

#less /etc/pam.d/login

10:59:00

#ps

  PID TTY          TIME CMD
22964 pts/5    00:00:00 l3script
24240 pts/5    00:00:00 ps
[1]+  Done                    nice -n -3 sleep 1000

10:59:53

#ps lax | awk '$13~/sleep/'

11:00:38

#echo $?

11:00:43

#ps lax | awk '$13=/sleep/'

0 0 24280 22964 20 0 6760 604 - S+ pts/5 0:00 1 $13=/sleep/

11:01:14

#ps

  PID TTY          TIME CMD
22964 pts/5    00:00:00 l3script
24288 pts/5    00:00:00 ps

11:01:42

#ps

  PID TTY          TIME CMD
22964 pts/5    00:00:00 l3script
24296 pts/5    00:00:00 ps

11:02:06

#ps -x

warning: bad ps syntax, perhaps a bogus '-'?
See http://gitorious.org/procps/procps/blobs/master/Documentation/FAQ
  PID TTY      STAT   TIME COMMAND
    1 ?        Ss     0:09 init [2]
    2 ?        S      0:00 [kthreadd]
    3 ?        S      0:03 [ksoftirqd/0]
    5 ?        S      0:00 [kworker/u:0]
    6 ?        S      0:00 [migration/0]
    7 ?        S      0:05 [watchdog/0]
    8 ?        S<     0:00 [cpuset]
...
19230 pts/3    S+     0:00 man test
19239 pts/3    S+     0:00 pager -s
22885 ?        Ss     0:00 sshd: root@pts/4
22887 pts/4    Ss     0:00 -bash
22932 pts/4    S+     0:00 script -f -c l3script -q /root/.lilalo//1283021757248215014-1414132290.script
22963 pts/4    S+     0:00 script -f -c l3script -q /root/.lilalo//1283021757248215014-1414132290.script
22964 pts/5    Ss     0:00 l3script
23868 ?        Ss     0:00 /usr/sbin/sshd
24146 ?        SNs    0:00 sshd: student [priv]
24304 pts/5    R+     0:00 ps -x

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