trouble with ddclient

Discussion in 'Server Operation' started by agrajagzz9, Nov 5, 2006.

  1. agrajagzz9

    agrajagzz9 New Member

    Hi
    I'm hosting a webserver at home and using the dyndns free service for a domain name. As I have a dynamic IP, I'm using DDclient to update the IP on the dyndns server when it changes. However, there seems to be a problem with this. DDclient detects the local address of eth0 (the interface that I specified in the /etc/ddclient.conf file). So now I have to update the IP manually on the dyndns site every time my IP changes. If anyone has used this program, please help :(.

    Agrajag
     
  2. falko

    falko Super Moderator ISPConfig Developer

    Is your system (the one where ddclient is installed) acting as your router (i.e., is it connected directly to the internet)?
    What's the output of
    Code:
    ifconfig
    ?
     
  3. agrajagzz9

    agrajagzz9 New Member

    No, the server is connected to a router which is connected to an adsl modem.

    ifconfig returns the following:
    Code:
    eth0      Link encap:Ethernet  HWaddr 00:09:5B:67:8E:D3
              inet addr:192.168.2.2  Bcast:192.168.2.255  Mask:255.255.255.0
              inet6 addr: fe80::209:5bff:fe67:8ed3/64 Scope:Link
              UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
              RX packets:122265 errors:0 dropped:0 overruns:0 frame:0
              TX packets:15435 errors:2 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000
              RX bytes:25614627 (24.4 MiB)  TX bytes:5386844 (5.1 MiB)
              Interrupt:185 Memory:cc102000-cc102fff
    
    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:30 errors:0 dropped:0 overruns:0 frame:0
              TX packets:30 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:0
              RX bytes:2332 (2.2 KiB)  TX bytes:2332 (2.2 KiB)
    thanks for your help

    Agrajag
     
  4. domino

    domino New Member

    Also post your ddclient.conf and and your cron tab.
     
  5. agrajagzz9

    agrajagzz9 New Member

    Ok

    here's the ddclient.conf:
    Code:
    pid=/var/run/ddclient.pid
    protocol=dyndns2
    use=if, if=eth0
    server=members.dyndns.org
    login=agrajagzz9
    password='secret'
    zz9.homelinux.net
    and crontab:
    Code:
    SHELL=/bin/sh
    PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
    
    # m h dom mon dow user  command
    17 *    * * *   root    run-parts --report /etc/cron.hourly
    25 6    * * *   root    test -x /usr/sbin/anacron || run-parts --report /etc/cr$
    47 6    * * 7   root    test -x /usr/sbin/anacron || run-parts --report /etc/cr$
    52 6    1 * *   root    test -x /usr/sbin/anacron || run-parts --report /etc/cr$
    #
     
  6. domino

    domino New Member

    If you don't post the complete ddclient.conf file (minus password and hostname), it's useless. What distro are youu using?

    Code:
    ## For those using Redhat style rc files and using daemon-mode:
      cp sample-etc_rc.d_init.d_ddclient /etc/rc.d/init.d/ddclient
      ## enable automatic startup when booting
      /sbin/chkconfig --add ddclient
      ## start the first time by hand
      /etc/rc.d/init.d/ddclient start
    
    Code:
    If you have not configured ddclient to use daemon-mode, you'll need to
    configure cron to force an update once a month so that the dns entry will
    not become stale.
    
      ## configure cron to force an update twice a month
      cp sample-etc_cron.d_ddclient /etc/cron.d/ddclient
      vi /etc/cron.d/ddclient
     
  7. agrajagzz9

    agrajagzz9 New Member

    That is the complete ddclient.conf file (without the comments at the start).
    I'm using Kubuntu 6.06.
    I was under the impression that ddclient comes automatically in daemon mode. (Which I think it is anyway.) But the problem is that it updates with the local ip of the computer instead of the external ip. However, it obviously doesn't update unless I reboot the server because it has a static ip.
     
  8. domino

    domino New Member

    Download the latest verion ddclient-3.7.0. the original .conf has 160 lines and the file should include the following if running in deamon mode:

    Code:
    daemon=300				# check every 300 seconds
    
    and you should include one of the following to get your external IP address if you are connected to a router.

    Code:
    #use=watchguard-soho,        fw=192.168.111.1:80	# via Watchguard's SOHO FW
    #use=netopia-r910,           fw=192.168.111.1:80	# via Netopia R910 FW
    #use=smc-barricade,          fw=192.168.123.254:80	# via SMC's Barricade FW
    
    clip...
    My router wasn't listed and I got it through a little trial and error. Followed that with your dyndns member information.

    now run test:

    Code:
    ddclient -daemon=0 -debug -verbose -noquiet
     
  9. falko

    falko Super Moderator ISPConfig Developer

    I don't see any interface that's connected to the internet, like ppp0 or something like this. If your system was connected directly to the internet, you'd have something like ppp0 on your system with a public IP address, and you'd have to use this interface for ddclient.
    Now you're behind a router, which means your router must update the dyndns record, so ddclient is useless for you. Most routers support updating dyndns records nowadays.
     
  10. domino

    domino New Member

    I recall being able to run ddclient on a linux box behind a network router/switch and that router behind a DSL router without problems. i eventually found out that my DSL router had it's own IP address update util. that connects to dyndns. so I stopped running ddclient.
     
  11. jdm

    jdm New Member

    hello i use ddclient with same way behind router with lan ip
    sometimes ddclient register in dns record my lan ip and other times my outside ip
    i use sme server 7
    i have speedtouch 530 router how i can configure ddclient take ip ?

    thanks in advance..
     
  12. falko

    falko Super Moderator ISPConfig Developer

    As I said before, your router must update your dyndns record.
     
  13. jdm

    jdm New Member

    my router dont have this feature i dont have 530 v6 only 530
     
  14. falko

    falko Super Moderator ISPConfig Developer

    I think the only solution is to get another router that has this feature. :(
     

Share This Page