Addr 0.0.0.0: hostname lookup failed: Difference between revisions

From wiki.zmanda.com
Jump to navigation Jump to search
(reformatted from previous troubleshooting page)
(man links)
 
(2 intermediate revisions by the same user not shown)
Line 1: Line 1:
{{Troubleshooting Category|amandad}}{{Troubleshooting Category|Error Messages}}
{{Troubleshooting Header}}
{{Troubleshooting Problem}}
=Problem=
[[amandad]] fails with error  
{{man|8|amandad}} fails with error  
  addr 0.0.0.0: hostname lookup failed
  addr 0.0.0.0: hostname lookup failed
The [[amdump]] and [[amcheck]] commands may display this error.
The {{man|8|amdump}} and {{man|8|amcheck}} commands may display this error.


{{Troubleshooting Solution}}
=Solution=


Check the amandad debug logs on the client. For example: ''/tmp/amanda/amandad.<Datestamp>''. Example of log messages:  
Check the amandad debug logs on the client. For example: ''/tmp/amanda/amandad.<Datestamp>''. Example of log messages:  
Line 17: Line 17:
One of the possible reasons can be using inetd in IPv6 environment on a linux system.  If this is the case, then
One of the possible reasons can be using inetd in IPv6 environment on a linux system.  If this is the case, then
* use xinetd instead of inetd services; and
* use xinetd instead of inetd services; and
* set protocol field to ''tcp46'' in xinetd or inetd service entry. See [[Amanda and IPv6]].
* set protocol field to ''tcp46'' in xinetd or inetd service entry. See also [[How To:Run Amanda Over IPv6]].

Latest revision as of 23:28, 30 June 2008

This article is a part of the Troubleshooting collection.

Problem

amandad(8) fails with error 

addr 0.0.0.0: hostname lookup failed

The amdump(8) and amcheck(8) commands may display this error.

Solution

Check the amandad debug logs on the client. For example: /tmp/amanda/amandad.<Datestamp>. Example of log messages: 

amandad: time 0.000: dgram_send_addr: sendto(0.0.0.0.566) failed:
Invalid argument
amandad: time 0.003: sending REP packet:
----
Amanda 2.4 REP HANDLE 001-A8850608 SEQ 1152114891
ERROR [addr 0.0.0.0: hostname lookup failed]

One of the possible reasons can be using inetd in IPv6 environment on a linux system. If this is the case, then

  • use xinetd instead of inetd services; and
  • set protocol field to tcp46 in xinetd or inetd service entry. See also How To:Run Amanda Over IPv6.
Retrieved from ‘http://wiki.zmanda.com/index.php?title=Addr_0.0.0.0:_hostname_lookup_failed&oldid=6083’