DJBDNS Help, please

Discussion in 'HOWTO-Related Questions' started by Steve-0, Feb 15, 2011.

  1. Steve-0

    Steve-0 New Member

    I have 3 nameservers set up with TinyDNS, but only one is working correctly...these servers are:

    ns1.radicalcomputingconcepts.com (Lenny)
    ns2.radicalcomputingconcepts.com (Etch)
    67.14.192.56 (Lenny)

    Tinydns is running on all three machines as confirmed by svstat and the log files present in /etc/service/tinydns/log/main/current

    The issue I'm having is that when querying the servers via dig @servername...only the ns2.radicalcomputingconcepts.com responds correctly.

    Even if I log into the servers and query with dig @localhost, or [email protected] IP to the servers themselves, the response is,
    "; (1 server found)
    ;; global options: +cmd
    ;; connection timed out; no servers could be reached"

    a test name to query for correct results is as follows:
    dig @ns2.radicalcomputingconcepts.com www.keystonedesign.com
     
  2. falko

    falko Super Moderator ISPConfig Developer

    What's the output of
    Code:
    netstat -tap
    and
    Code:
    netstat -uap
    on the not-working server?
     
  3. Steve-0

    Steve-0 New Member

    netstat

    ~# netstat -tap
    Active Internet connections (servers and established)
    Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
    tcp 0 0 *:59406 *:* LISTEN 1822/rpc.statd
    tcp 0 0 *:sunrpc *:* LISTEN 1811/portmap
    tcp 0 0 *:ssh *:* LISTEN 2069/sshd
    tcp 0 0 localhost.localdom:smtp *:* LISTEN 2336/exim4
    tcp 0 0 ns1.radicalcomputin:ssh 218.201.249.211:6622 TIME_WAIT -
    tcp 0 0 ns1.radicalcomputin:ssh 218.201.249.211:6636 TIME_WAIT -
    tcp 0 0 ns1.radicalcomputin:ssh 218.201.249.211:6754 ESTABLISHED 30154/sshd: unknown
    tcp 0 240 ns1.radicalcomputin:ssh c-76-120-72-105.h:54765 ESTABLISHED 30122/0
    tcp 0 0 ns1.radicalcomputin:ssh 218.201.249.211:6758 ESTABLISHED 30168/sshd: [accept
    tcp 0 0 ns1.radicalcomputin:ssh 218.201.249.211:6762 ESTABLISHED 30170/sshd: [accept
    tcp 0 0 ns1.radicalcomputin:ssh 218.201.249.211:6637 TIME_WAIT -
    tcp 0 0 ns1.radicalcomputin:ssh 218.201.249.211:6755 ESTABLISHED 30155/sshd: unknown
    tcp 0 0 ns1.radicalcomputin:ssh 218.201.249.211:6718 TIME_WAIT -
    tcp 0 0 ns1.radicalcomputin:ssh 218.201.249.211:6763 ESTABLISHED 30171/sshd: [accept
    tcp6 0 0 [::]:ssh [::]:* LISTEN 2069/sshd


    and

    ~# netstat -uap
    Active Internet connections (servers and established)
    Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
    udp 0 0 ns1.radicalcompu:domain *:* 31964/tinydns
    udp 0 0 ns1.radicalcomput:39094 nrcns.s3woodstoc:domain ESTABLISHED 30968/sshd: [accept
    udp 0 0 *:54468 *:* 1822/rpc.statd
    udp 0 0 *:726 *:* 1822/rpc.statd
    udp 0 0 *:sunrpc *:* 1811/portmap
     
  4. falko

    falko Super Moderator ISPConfig Developer

    tinyDNS is not listening on all interfaces. Can you configure it to listen on all interfaces?

    If that still doesn't help, please make it listen on TCP as well (in addition to UDP).
     
  5. Steve-0

    Steve-0 New Member

    all interfaces?

    Falko,
    The tinydns-conf program does not allow for setting TinyDNS to run on more than one interface. I have mail and other services running on these interfaces.

    Likewise TINYDNS is not intended to run on TCP. AXFRDNS is the sister package that is part of DJBDNS intended to run on TCP.

    The working server reports similar information via netstat...surely this is not causing the lack of response by the server???

    ~# netstat -tap
    Active Internet connections (servers and established)
    Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
    tcp 0 0 localhost.localdo:60000 *:* LISTEN 1934/postgrey.pid -
    tcp 0 0 localhost.localdo:10024 *:* LISTEN 1931/amavisd (maste
    tcp 0 0 localhost.localdo:mysql *:* LISTEN 2134/mysqld
    tcp 0 0 localhost.localdoma:781 *:* LISTEN 2301/famd
    tcp 0 0 *:sunrpc *:* LISTEN 1575/portmap
    tcp 0 0 *:auth *:* LISTEN 2083/inetd
    tcp6 0 0 *:imaps *:* LISTEN 2031/couriertcpd
    tcp6 0 0 *:pop3s *:* LISTEN 2052/couriertcpd
    tcp6 0 0 *:pop3 *:* LISTEN 2039/couriertcpd
    tcp6 0 0 *:imap2 *:* LISTEN 2001/couriertcpd
    tcp6 0 0 *:www *:* LISTEN 4133/apache2
    tcp6 0 0 *:ssh *:* LISTEN 2297/sshd
    tcp6 0 0 *:https *:* LISTEN 4133/apache2
    tcp6 0 1824 ::ffff:66.55.47.207:ssh c-76-120-72-105.h:59672 ESTABLISHED15093/0

    ~# netstat -uap
    Active Internet connections (servers and established)
    Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
    udp 0 0 ns2.radicalcompu:domain *:* 2407/tinydns
    udp 0 0 *:sunrpc *:* 1575/portmap
     
  6. falko

    falko Super Moderator ISPConfig Developer

    Are there any djbdns errors in your logs?
     
  7. Steve-0

    Steve-0 New Member

    No errors...but I think I figured it out...did complete reinstall...For whatever reason, I think dig was broken and tinydns just needed a local query with dnsq to get the ball rolling....now dig works as well.

    S
     

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