Telnet Configuration > Network Programming

Telnet Configuration

Network Programming


[root@localhost ~]# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:0C:29:FD:19:13  
          inet addr:172.20.101.50  Bcast:172.20.101.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fefd:1913/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:8768 errors:0 dropped:0 overruns:0 frame:0
          TX packets:856 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1055718 (1.0 MiB)  TX bytes:65114 (63.5 KiB)

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:1656 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1656 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:2524098 (2.4 MiB)  TX bytes:2524098 (2.4 MiB)


peth0     Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:11469 errors:0 dropped:0 overruns:0 frame:0
          TX packets:885 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1227880 (1.1 MiB)  TX bytes:69824 (68.1 KiB)
          Interrupt:18 Base address:0x1400 

vif0.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:856 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8768 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:65114 (63.5 KiB)  TX bytes:1055718 (1.0 MiB)

xenbr0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:8304 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:912383 (890.9 KiB)  TX bytes:0 (0.0 b)

[root@localhost ~]# telnet 172.20.101.98
Trying 172.20.101.98...
Connected to 172.20.101.98 (172.20.101.98).
Escape character is '^]'.
Red Hat Enterprise Linux Server release 5 (Tikanga)
Kernel 2.6.18-8.el5xen on an i686
login: prat
Password: 
Last login: Fri Feb 12 18:50:07 from 172.20.101.43
[prat@localhost ~]$ exit
logout

Connection closed by foreign host.
[root@localhost ~]# telnet 172.20.101.98
Trying 172.20.101.98...
Connected to 172.20.101.98 (172.20.101.98).
Escape character is '^]'.
Red Hat Enterprise Linux Server release 5 (Tikanga)
Kernel 2.6.18-8.el5xen on an i686
login: prat
Password: 
Last login: Fri Feb 12 18:55:34 from 172.20.101.50
[prat@localhost ~]$ exit
logout



Connection closed by foreign host.
[root@localhost ~]# cd /etc/xinetd.d/
[root@localhost xinetd.d]# gedit telnet




[root@localhost xinetd.d]# netstat -a | grep telnet
[root@localhost xinetd.d]# service xinetd restart
Stopping xinetd:                                           [  OK  ]
Starting xinetd:                                           [  OK  ]
[root@localhost xinetd.d]# netstat -a | grep telnet
tcp        0      0 *:telnet                    *:*                         LISTEN      
[root@localhost xinetd.d]# useradd prat
[root@localhost xinetd.d]# passwd prat
Changing password for user prat.
New UNIX password: 
BAD PASSWORD: it is too simplistic/systematic
Retype new UNIX password: 
passwd: all authentication tokens updated successfully.
[root@localhost xinetd.d]# gedit telnet
[root@localhost xinetd.d]# service xinetd restart
Stopping xinetd:                                           [  OK  ]
Starting xinetd:                                           [  OK  ]
[root@localhost xinetd.d]# netstat -a | grep telnet
tcp        0      0 172.20.101.50:telnet        172.20.101.98:43377         ESTABLISHED 
[root@localhost xinetd.d]# gedit telnet


[root@localhost xinetd.d]# service xinetd restart
Stopping xinetd:                                           [  OK  ]
Starting xinetd:                                           [  OK  ]
[root@localhost xinetd.d]# netstat -a | grep telnet
tcp        0      0 *:telnet                    *:*                         LISTEN      
tcp        0      0 172.20.101.50:telnet        172.20.101.98:43377         ESTABLISHED 
[root@localhost xinetd.d]# mkdir abc
[root@localhost xinetd.d]# cd abc
[root@localhost abc]# touch acb
[root@localhost abc]# service network restart

Comments

Popular posts from this blog

Intermediate Code Generation > C Program