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Hi friends, I am having a Linix server installed with ububtu in my office. And it is connected to thy company network. The name of the server is "encoresourceforge". I ...
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  1. #1
    Just Joined!
    Join Date
    Dec 2006
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    26

    Unhappy Able to acces by IP but not by name.


    Hi friends,

    I am having a Linix server installed with ububtu in my office. And it is connected to thy company network. The name of the server is "encoresourceforge".

    I am not able to connect to the server using its name but i am able to connect it through its Ip address, like

    root@adge-desktop:~# ssh root@encoresourceforge
    ssh: encoresourceforge: Name or service not known
    root@adge-desktop:~# ssh root@172.21.15.49
    root@172.21.15.49's password:
    Last login: Wed Jan 24 11:07:11 2007 from 10.66.141.12
    Linux encoresourceforge 2.6.17-10-generic #2 SMP Fri Oct 13 18:45:35 UTC 2006 i686

    The programs included with the Ubuntu system are free software;
    the exact distribution terms for each program are described in the
    individual files in /usr/share/doc/*/copyright.

    Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by
    applicable law.
    root@encoresourceforge:~#
    I am sure that an DNS entry is made for this IP.

    But it also dispays some other system name when i do a networking restart,
    root@encoresourceforge:/etc# sh /etc/init.d/networking restart
    * Reconfiguring network interfaces...
    root@encoresourceforge:/etc# sh /etc/init.d/networking stop
    * Deconfiguring network interfaces... [ ok ]
    root@encoresourceforge:/etc# sh /etc/init.d/networking start
    * Configuring network interfaces... There is already a pid file /var/run/dhclient.eth0.pid with pid 5910
    killed old client process, removed PID file
    Internet Systems Consortium DHCP Client V3.0.4
    Copyright 2004-2006 Internet Systems Consortium.
    All rights reserved.
    For info, please visit http://www.isc.org/sw/dhcp/

    Listening on LPF/eth0/00:13:72:73:9a:1b
    Sending on LPF/eth0/00:13:72:73:9a:1b
    Sending on Socket/fallback
    DHCPREQUEST on eth0 to 255.255.255.255 port 67
    DHCPACK from 172.21.15.2
    addr=172.21.15.49, name=blrkecl13847.ad.infosys.com
    Updating databases ...
    Reading configuration from /etc/mail/sendmail.conf.
    Validating configuration.
    Creating /etc/mail/databases...
    Updating Makefile ...
    Reading configuration from /etc/mail/sendmail.conf.
    Validating configuration.
    Creating /etc/mail/Makefile...
    Updating sendmail.cf ...
    Creating /etc/mail/relay-domains
    # Optional file...
    The following file(s) have changed:
    /etc/mail/sendmail.cf
    ** ** You should issue `/etc/init.d/sendmail reload` ** **
    bound to 172.21.15.49 -- renewal in 6915 seconds.
    Updating sendmail.cf ...
    Creating /etc/mail/relay-domains
    # Optional file...
    The following file(s) have changed:
    /etc/mail/sendmail.cf
    ** ** You should issue `/etc/init.d/sendmail reload` ** **
    Mail Transport Agent: sendmail is not running
    Pls tell me how to solve this.

  2. #2
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    name = blrkecl13847.ad.infosys.com

    Pls look in the second quote for the line

    addr=172.21.15.49, name=blrkecl13847.ad.infosys.com

    The name "blrkecl13847.ad.infosys.com" is not hte name of the server.

  3. #3
    Linux User cyberinstru's Avatar
    Join Date
    Jan 2007
    Location
    India
    Posts
    362
    Add the hostname and its IP in the /etc/hosts file and try it out.

    Note: When you try to connect/reach a system with its name, it tries to resolve the name.

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