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Журнал лабораторных работ

Содержание

Журнал

Четверг (03/10/11)

14:59:54
#ls /etc/file1||touch /etc/file1
ls: невозможно получить доступ к /etc/file1: Нет такого файла или каталога
15:00:43
#screen -x
15:00:48
#screen -x
15:01:39
#ls /etc/file1||touch /etc/file1
/etc/file1
15:01:42
#ls /dev/hd* 
ls: невозможно получить доступ к /dev/hd*: Нет такого файла или каталога
15:02:49
#ls /dev/
block            loop2               ram11   tty1   tty3   tty5   ttyS3
char             loop3               ram12   tty10  tty30  tty50  urandom
console          loop4               ram13   tty11  tty31  tty51  usbmon0
core             loop5               ram14   tty12  tty32  tty52  vcs
cpu_dma_latency  loop6               ram15   tty13  tty33  tty53  vcs1
disk             loop7               ram2    tty14  tty34  tty54  vcs2
fd               MAKEDEV             ram3    tty15  tty35  tty55  vcs3
full             mapper              ram4    tty16  tty36  tty56  vcs4
hvc0             mem                 ram5    tty17  tty37  tty57  vcs5
hvc1             net                 ram6    tty18  tty38  tty58  vcs6
...
hvc4             null                ram9    tty20  tty40  tty60  vcsa2
hvc5             nvram               random  tty21  tty41  tty61  vcsa3
hvc6             oldmem              raw     tty22  tty42  tty62  vcsa4
hvc7             port                root    tty23  tty43  tty63  vcsa5
initctl          ppp                 shm     tty24  tty44  tty7   vcsa6
input            ptmx                stderr  tty25  tty45  tty8   vga_arbiter
kmsg             pts                 stdin   tty26  tty46  tty9   xconsole
log              ram0                stdout  tty27  tty47  ttyS0  xen
loop0            ram1                tty     tty28  tty48  ttyS1  xvda1
loop1            ram10               tty0    tty29  tty49  ttyS2  zero
15:02:53
#ls /dev/xvd*
/dev/xvda1
15:03:07
#dd if=/dev/zero of=file1 bs=1024 count=2048
2048+0 записей считано
2048+0 записей написано
 скопировано 2097152 байта (2,1 MB), 0,10117 c, 20,7 MB/c
15:05:12
#dd if=/dev/zero of=file1 bs=1024 count=204800
204800+0 записей считано
204800+0 записей написано
 скопировано 209715200 байт (210 MB), 25,6905 c, 8,2 MB/c
15:05:45
#mkfs.ext4 file 
file   file1
15:05:45
#mkfs.ext4 file1
mke2fs 1.41.12 (17-May-2010)
file1 is not a block special device.
Proceed anyway? (y,n) y
Filesystem label=
OS type: Linux
Block size=1024 (log=0)
Fragment size=1024 (log=0)
Stride=0 blocks, Stripe width=0 blocks
51200 inodes, 204800 blocks
10240 blocks (5.00%) reserved for the super user
...
25 block groups
8192 blocks per group, 8192 fragments per group
2048 inodes per group
Superblock backups stored on blocks:
        8193, 24577, 40961, 57345, 73729
Writing inode tables: done
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 30 mounts or
180 days, whichever comes first.  Use tune2fs -c or -i to override.
15:06:07
#mount file1 /mnt 
mount: /root/file1 is not a block device (maybe try `-o loop'?)
15:06:16
#mount -o loop file1 /mnt










15:06:38




#mount


/dev/xvda1 on / type ext4 (rw,errors=remount-ro)
tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type tmpfs (rw,mode=0755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
none on /selinux type selinuxfs (rw,relatime)
/dev/loop0 on /mnt type ext4 (rw)











15:06:41




#umount





Usage: umount -h | -V
       umount -a [-d] [-f] [-r] [-n] [-v] [-t vfstypes] [-O opts]
       umount [-d] [-f] [-r] [-n] [-v] special | node...











15:07:32




#umount /mnt












15:11:27




#cd












15:11:32




#cat /etc/samba/smb.conf | egrep -v "^#|^;|^$"


[global]
   workgroup = WORKGROUP
   server string = %h server
   dns proxy = no
   log file = /var/log/samba/log.%m
   max log size = 1000
   syslog = 0
   panic action = /usr/share/samba/panic-action %d
   encrypt passwords = true
   passdb backend = tdbsam
...
   printable = yes
   guest ok = no
   read only = yes
   create mask = 0700
[print$]
   comment = Printer Drivers
   path = /var/lib/samba/printers
   browseable = yes
   read only = yes
   guest ok = no











15:13:43




#cat /etc/samba/smb.conf | egrep -v "^#|^;|^$"|less










15:13:56




#   passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\


[global]
   workgroup = WORKGROUP
   server string = %h server
   dns proxy = no
   log file = /var/log/samba/log.%m
   max log size = 1000
   syslog = 0
   panic action = /usr/share/samba/panic-action %d
   encrypt passwords = true
   passdb backend = tdbsam
...
   passwd program = /usr/bin/passwd %u
   passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .
   pam password change = yes
[homes]
   comment = Home Directories
   browseable = no
   read only = yes
   create mask = 0700
   directory mask = 0700
   valid users = %S











15:15:41




#cat /etc/samba/smb.conf | egrep -v `^#|^;|^$`|less










15:16:10




#cat /etc/samba/smb.conf | egrep '^#..b'|less










15:17:24




#cat /etc/samba/smb.conf | egrep '^#..a'|less










15:17:59




#man grep










15:23:31




#man pgrep










15:24:04




#egrep '^#..b' /etc/samba/smb.conf















15:25:45




#grep '^#' /etc/samba/smb.conf


#
# Sample configuration file for the Samba suite for Debian GNU/Linux.
#
#
# This is the main Samba configuration file. You should read the
# smb.conf(5) manual page in order to understand the options listed
# here. Samba has a huge number of configurable options most of which
# are not shown in this example
#
# Some options that are often worth tuning have been included as
...
#       cdrom share is accesed. For this to work /etc/fstab must contain
#       an entry like this:
#
#       /dev/scd0   /cdrom  iso9660 defaults,noauto,ro,user   0 0
#
# The CD-ROM gets unmounted automatically after the connection to the
#
# If you don't want to use auto-mounting/unmounting make sure the CD
#       is mounted on /cdrom
#











15:25:55




#grep -v '^#' /etc/samba/smb.conf


[global]
   workgroup = WORKGROUP
   server string = %h server
;   wins server = w.x.y.z
   dns proxy = no
;   name resolve order = lmhosts host wins bcast
;   interfaces = 127.0.0.0/8 eth0
;   bind interfaces only = yes
   log file = /var/log/samba/log.%m
   max log size = 1000
...
   guest ok = no
;   write list = root, @lpadmin
;[cdrom]
;   comment = Samba server's CD-ROM
;   read only = yes
;   locking = no
;   path = /cdrom
;   guest ok = yes
;   preexec = /bin/mount /cdrom
;   postexec = /bin/umount /cdrom











15:28:50




#man grep










15:29:47




#grep -R samba /etc|less










15:31:07




#grep -R 'nado nayti' /etc|less










15:35:38




#cat /etc/passwd|sed s/root/sid/g


sid:x:0:0:sid:/sid:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/bin/sh
bin:x:2:2:bin:/bin:/bin/sh
sys:x:3:3:sys:/dev:/bin/sh
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/bin/sh
man:x:6:12:man:/var/cache/man:/bin/sh
lp:x:7:7:lp:/var/spool/lpd:/bin/sh
mail:x:8:8:mail:/var/mail:/bin/sh
news:x:9:9:news:/var/spool/news:/bin/sh
...
www-data:x:33:33:www-data:/var/www:/bin/sh
backup:x:34:34:backup:/var/backups:/bin/sh
list:x:38:38:Mailing List Manager:/var/list:/bin/sh
irc:x:39:39:ircd:/var/run/ircd:/bin/sh
gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
libuuid:x:100:101::/var/lib/libuuid:/bin/sh
sshd:x:101:65534::/var/run/sshd:/usr/sbin/nologin
user:x:1000:1000::/home/user:/bin/bash
messagebus:x:102:104::/var/run/dbus:/bin/false











15:36:01




#cat /etc/passwd|sed s/root/sid/g|sort


backup:x:34:34:backup:/var/backups:/bin/sh
bin:x:2:2:bin:/bin:/bin/sh
daemon:x:1:1:daemon:/usr/sbin:/bin/sh
games:x:5:60:games:/usr/games:/bin/sh
gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
irc:x:39:39:ircd:/var/run/ircd:/bin/sh
libuuid:x:100:101::/var/lib/libuuid:/bin/sh
list:x:38:38:Mailing List Manager:/var/list:/bin/sh
lp:x:7:7:lp:/var/spool/lpd:/bin/sh
mail:x:8:8:mail:/var/mail:/bin/sh
...
news:x:9:9:news:/var/spool/news:/bin/sh
nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
proxy:x:13:13:proxy:/bin:/bin/sh
sid:x:0:0:sid:/sid:/bin/bash
sshd:x:101:65534::/var/run/sshd:/usr/sbin/nologin
sync:x:4:65534:sync:/bin:/bin/sync
sys:x:3:3:sys:/dev:/bin/sh
user:x:1000:1000::/home/user:/bin/bash
uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
www-data:x:33:33:www-data:/var/www:/bin/sh











15:36:27




#cat /etc/passwd|sed s/root/sid/g|sort > sort_file












15:36:42




#vim sort_file










15:36:47




#~


  1 deb http://ftp.ua.debian.org/debian squeeze main
"/etc/apt/sources.list" 1L, 49C











15:37:27




#~


&& apt-get update install vim && sed -i -e s/sid/squeeze/g /etc/apt/sources.list
Получено:1 http://ftp.ua.debian.org sid Release.gpg [835 B]
Игн http://ftp.ua.debian.org/debian/ sid/main Translation-en
Игн http://ftp.ua.debian.org/debian/ sid/main Translation-ru
Получено:2 http://ftp.ua.debian.org sid Release [146 kB]
Получено:3 http://ftp.ua.debian.org sid/main i386 Packages [9 169 kB]
Получено 9 316 kБ за 26с (354 kБ/c)
Чтение списков пакетов... Готово
Чтение списков пакетов... Готово
Построение дерева зависимостей
...
Настраивается пакет vim (2:7.3.035+hg~8fdc12103333-1) ...
Настраивается пакет vim-tiny (2:7.3.035+hg~8fdc12103333-1) ...
Устанавливается новая версия файла настройки /etc/vim/vimrc.tiny ...
Получено:1 http://ftp.ua.debian.org squeeze Release.gpg [1 671 B]
Игн http://ftp.ua.debian.org/debian/ squeeze/main Translation-en
Игн http://ftp.ua.debian.org/debian/ squeeze/main Translation-ru
Получено:2 http://ftp.ua.debian.org squeeze Release [69,3 kB]
Получено:3 http://ftp.ua.debian.org squeeze/main i386 Packages [8 631 kB]
Получено 8 702 kБ за 17с (508 kБ/c)
Чтение списков пакетов... Готово











15:40:49




#vim













15:42:09




#~





                  #sed -i -e s/squeeze/sid/g && sleep











15:42:53




#sleep 5












15:43:01




#c&& cat /etc/apt/sources.list &&












15:47:01




#cat /etc/passwd|tr -c  abc xyz












15:49:02




#cat /etc/passwd|trd-c  a


root:x:0:0:root:/root:/in/sh
demon:x:1:1:demon:/usr/sin:/in/sh
in:x:2:2:in:/in:/in/sh
sys:x:3:3:sys:/dev:/in/sh
syn:x:4:65534:syn:/in:/in/syn
gmes:x:5:60:gmes:/usr/gmes:/in/sh
mn:x:6:12:mn:/vr/he/mn:/in/sh
lp:x:7:7:lp:/vr/spool/lpd:/in/sh
mil:x:8:8:mil:/vr/mil:/in/sh
news:x:9:9:news:/vr/spool/news:/in/sh
...
www-dt:x:33:33:www-dt:/vr/www:/in/sh
kup:x:34:34:kup:/vr/kups:/in/sh
list:x:38:38:Miling List Mnger:/vr/list:/in/sh
ir:x:39:39:ird:/vr/run/ird:/in/sh
gnts:x:41:41:Gnts Bug-Reporting System (dmin):/vr/li/gnts:/in/sh
noody:x:65534:65534:noody:/nonexistent:/in/sh
liuuid:x:100:101::/vr/li/liuuid:/in/sh
sshd:x:101:65534::/vr/run/sshd:/usr/sin/nologin
user:x:1000:1000::/home/user:/in/sh
messgeus:x:102:104::/vr/run/dus:/in/flse











15:49:52




#cat /etc/passwd|tr -d  rot


:x:0:0::/:/bin/bash
daemn:x:1:1:daemn:/us/sbin:/bin/sh
bin:x:2:2:bin:/bin:/bin/sh
sys:x:3:3:sys:/dev:/bin/sh
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/us/games:/bin/sh
man:x:6:12:man:/va/cache/man:/bin/sh
lp:x:7:7:lp:/va/spl/lpd:/bin/sh
mail:x:8:8:mail:/va/mail:/bin/sh
news:x:9:9:news:/va/spl/news:/bin/sh
...
www-daa:x:33:33:www-daa:/va/www:/bin/sh
backup:x:34:34:backup:/va/backups:/bin/sh
lis:x:38:38:Mailing Lis Manage:/va/lis:/bin/sh
ic:x:39:39:icd:/va/un/icd:/bin/sh
gnas:x:41:41:Gnas Bug-Reping Sysem (admin):/va/lib/gnas:/bin/sh
nbdy:x:65534:65534:nbdy:/nnexisen:/bin/sh
libuuid:x:100:101::/va/lib/libuuid:/bin/sh
sshd:x:101:65534::/va/un/sshd:/us/sbin/nlgin
use:x:1000:1000::/hme/use:/bin/bash
messagebus:x:102:104::/va/un/dbus:/bin/false











15:50:15