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Full Discussion: BIND and dig errors
Top Forums UNIX for Dummies Questions & Answers BIND and dig errors Post 12104 by sam_pointer on Wednesday 19th of December 2001 09:50:18 AM
Old 12-19-2001
Solved it, now to refine....

I've located the source of the problem: IPCHAINS.

When I stop my firewalling on the Linux box local and remote DNS resolution are both fine.

My ipchains rules are as such (assuming that the IP address of my box is 123.123.123.123):

:input DENY
:forward DENY
:output ACCEPT

-A input -p icmp -j ACCEPT

# dns
-A input -d 123.123.123.123 53 -p udp -j ACCEPT
-A input -s 123.123.123.123 53 -p udp -j ACCEPT
-A input -d 123.123.123.123 53 -p tcp -j ACCEPT
-A input -s 123.123.123.123 53 -p tcp -j ACCEPT

# ssh
-A input -d 123.123.123.123 22 -p udp -j ACCEPT
-A input -s 123.123.123.123 22 -p udp -j ACCEPT
-A input -d 123.123.123.123 22 -p tcp -j ACCEPT
-A input -s 123.123.123.123 22 -p tcp -j ACCEPT

which in my mind would allow all ssh trafic (which it does) and all DNS traffic, regardless of whether it travelled over udp (usual) or tcp (rarely). The connection should also be allowed both ways, surely.

Can anyone spot any obvious mistakes? Thanks again.
 

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hesupd(8)						      System Manager's Manual							 hesupd(8)

Name
       hesupd - Hesiod update daemon for modifying BIND/Hesiod passwords

Syntax
Description
       The  Hesiod  update  daemon,  is a server that handles password change requests from the command and is run only on the BIND/Hesiod primary
       server serving the password database.  The daemon changes the password entries on the BIND/Hesiod primary server.

       The primary server is identified by the host name alias, bindmaster, which must exist on the server's host entry  in  the  hosts  database.
       The bindsetup command adds the host name alias, bindmaster to the file if it does not already exist.

       This  daemon is not run by default, nor can it be started up from the daemon.  If you want to enable remote password updating for BIND/Hes-
       iod, put an entry for in the file of the host serving as the primary server for the BIND/Hesiod file.  You can add the startup lines for to
       by running the command.

       Hesiod keeps a log file, which records successful and unsuccessful password changes by uid.

Examples
       This following example shows lines you can add to in order to start the Hesiod update daemon at boot time.
	  [ -f /usr/etc/hesupd ] && {
	     /usr/etc/hesupd; echo -n ' hesupd' >/dev/console
	  }

Files
       Startup commands pertinent to a specific system

       Log of password changes

       Default BIND Files:

       BIND/Hesiod passwd file

       BIND hosts file

See Also
       bindsetup(8), passwd(1)
       Guide to the BIND/Hesiod Service

																	 hesupd(8)
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