Журнал лабораторных работ

Содержание

Журнал

Среда (04/06/11)

/dev/pts/7
08:28:57
#ifc
bash: ifc: command not found
/dev/pts/4
08:28:57
#ifc
bash: ifc: command not found
/dev/pts/7
08:29:02
#ifconfig
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:2359 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2359 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:2035238 (1.9 MiB)  TX bytes:2035238 (1.9 MiB)
virbr0    Link encap:Ethernet  HWaddr 00:00:00:00:00:00
          inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
          inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:45 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:8316 (8.1 KiB)
/dev/pts/4
08:29:02
#ifconfig
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:2359 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2359 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:2035238 (1.9 MiB)  TX bytes:2035238 (1.9 MiB)
virbr0    Link encap:Ethernet  HWaddr 00:00:00:00:00:00
          inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
          inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:45 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:8316 (8.1 KiB)
/dev/pts/7
08:29:03
#ifup eth0

/dev/pts/4
08:29:03
#ifup eth0

/dev/pts/7
08:29:14
#ifconfig
eth0      Link encap:Ethernet  HWaddr 00:26:18:E4:56:60
          inet addr:192.168.15.4  Bcast:192.168.15.255  Mask:255.255.255.0
          inet6 addr: fe80::226:18ff:fee4:5660/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:21483 errors:0 dropped:0 overruns:0 frame:0
          TX packets:20605 errors:0 dropped:0 overruns:0 carrier:2
          collisions:0 txqueuelen:1000
          RX bytes:10039861 (9.5 MiB)  TX bytes:1529084 (1.4 MiB)
          Interrupt:74 Memory:feac0000-feb00000
lo        Link encap:Local Loopback
...
          collisions:0 txqueuelen:0
          RX bytes:2046946 (1.9 MiB)  TX bytes:2046946 (1.9 MiB)
virbr0    Link encap:Ethernet  HWaddr 00:00:00:00:00:00
          inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
          inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:45 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:8316 (8.1 KiB)
/dev/pts/4
08:29:14
#ifconfig
eth0      Link encap:Ethernet  HWaddr 00:26:18:E4:56:60
          inet addr:192.168.15.4  Bcast:192.168.15.255  Mask:255.255.255.0
          inet6 addr: fe80::226:18ff:fee4:5660/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:21483 errors:0 dropped:0 overruns:0 frame:0
          TX packets:20605 errors:0 dropped:0 overruns:0 carrier:2
          collisions:0 txqueuelen:1000
          RX bytes:10039861 (9.5 MiB)  TX bytes:1529084 (1.4 MiB)
          Interrupt:74 Memory:feac0000-feb00000
lo        Link encap:Local Loopback
...
          collisions:0 txqueuelen:0
          RX bytes:2046946 (1.9 MiB)  TX bytes:2046946 (1.9 MiB)
virbr0    Link encap:Ethernet  HWaddr 00:00:00:00:00:00
          inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
          inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:45 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:8316 (8.1 KiB)
/dev/pts/7
08:29:24
#nmap -p 192.168.15.3
Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2011-04-06 12:30 ALMT
Error #487: Your port specifications are illegal.  Example of proper form: "-100,200-1024,3000-4000,60000-"
QUITTING!
/dev/pts/4
08:29:24
#nmap -p 192.168.15.3
Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2011-04-06 12:30 ALMT
Error #487: Your port specifications are illegal.  Example of proper form: "-100,200-1024,3000-4000,60000-"
QUITTING!
/dev/pts/7
08:30:47
#nmap -p 1-65000 192.168.15.3
Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2011-04-06 12:31 ALMT
Interesting ports on linux3.unix.bas (192.168.15.3):
Not shown: 64995 closed ports
PORT    STATE SERVICE
22/tcp  open  ssh
23/tcp  open  telnet
79/tcp  open  finger
111/tcp open  rpcbind
791/tcp open  unknown
MAC Address: 00:26:18:CA:E8:DC (Unknown)
Nmap finished: 1 IP address (1 host up) scanned in 2.385 seconds
/dev/pts/4
08:30:47
#nmap -p 1-65000 192.168.15.3
Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2011-04-06 12:31 ALMT
Interesting ports on linux3.unix.bas (192.168.15.3):
Not shown: 64995 closed ports
PORT    STATE SERVICE
22/tcp  open  ssh
23/tcp  open  telnet
79/tcp  open  finger
111/tcp open  rpcbind
791/tcp open  unknown
MAC Address: 00:26:18:CA:E8:DC (Unknown)
Nmap finished: 1 IP address (1 host up) scanned in 2.385 seconds
/dev/pts/7
08:31:03
#more /etc/sysconfig/iptables-config
/dev/pts/4
08:31:03
#more /etc/sysconfig/iptables-config
/dev/pts/7
08:41:01
#iptables-save
# Generated by iptables-save v1.3.5 on Wed Apr  6 12:41:13 2011
*nat
:PREROUTING ACCEPT [70:12925]
:POSTROUTING ACCEPT [72609:3294672]
:OUTPUT ACCEPT [72611:3294857]
-A POSTROUTING -s 192.168.122.0/255.255.255.0 -d ! 192.168.122.0/255.255.255.0 -p tcp -j MASQUERADE --to-ports 1024-65535
-A POSTROUTING -s 192.168.122.0/255.255.255.0 -d ! 192.168.122.0/255.255.255.0 -p udp -j MASQUERADE --to-ports 1024-65535
-A POSTROUTING -s 192.168.122.0/255.255.255.0 -d ! 192.168.122.0/255.255.255.0 -j MASQUERADE
COMMIT
# Completed on Wed Apr  6 12:41:13 2011
...
-A INPUT -i virbr0 -p tcp -m tcp --dport 53 -j ACCEPT
-A INPUT -i virbr0 -p udp -m udp --dport 67 -j ACCEPT
-A INPUT -i virbr0 -p tcp -m tcp --dport 67 -j ACCEPT
-A FORWARD -d 192.168.122.0/255.255.255.0 -o virbr0 -m state --state RELATED,ESTABLISHED -j ACCEPT
-A FORWARD -s 192.168.122.0/255.255.255.0 -i virbr0 -j ACCEPT
-A FORWARD -i virbr0 -o virbr0 -j ACCEPT
-A FORWARD -o virbr0 -j REJECT --reject-with icmp-port-unreachable
-A FORWARD -i virbr0 -j REJECT --reject-with icmp-port-unreachable
COMMIT
# Completed on Wed Apr  6 12:41:13 2011
/dev/pts/4
08:41:01
#iptables-save
# Generated by iptables-save v1.3.5 on Wed Apr  6 12:41:13 2011
*nat
:PREROUTING ACCEPT [70:12925]
:POSTROUTING ACCEPT [72609:3294672]
:OUTPUT ACCEPT [72611:3294857]
-A POSTROUTING -s 192.168.122.0/255.255.255.0 -d ! 192.168.122.0/255.255.255.0 -p tcp -j MASQUERADE --to-ports 1024-65535
-A POSTROUTING -s 192.168.122.0/255.255.255.0 -d ! 192.168.122.0/255.255.255.0 -p udp -j MASQUERADE --to-ports 1024-65535
-A POSTROUTING -s 192.168.122.0/255.255.255.0 -d ! 192.168.122.0/255.255.255.0 -j MASQUERADE
COMMIT
# Completed on Wed Ap