Re: question about Postfix and DNS (maybe not for this list)

2010-08-12 Thread Ralf Hildebrandt
* Christopher Adams : > I noticed on our firewall that there were constant connections from the > machine running Postfix to addresses all over the world. What kind of connections? Which port? > The interesting thing is that the connection is using OpenDNS > [208.67.216.132], a public DNS serve

Re: question about Postfix and DNS (maybe not for this list)

2010-08-11 Thread Noel Jones
On 8/11/2010 7:20 PM, Christopher Adams wrote: Hello all, I am having a bit of a problem and I am not sure that it is specifically Postfix-related, but I'll give it a shot. Feel free to flog me or tell me to go away. I am running Postfix 2.3 on a CentOS Linux server. I noticed on our firewall

Re: question about Postfix and DNS (maybe not for this list)

2010-08-11 Thread Walter Pinto
> Doesn't Postfix use /var/spool/postfix/etc/resolv.conf (which may be > different)? > If he's chroot'ed then I would assume yes.

Re: question about Postfix and DNS (maybe not for this list)

2010-08-11 Thread N. Yaakov Ziskind
Christopher Adams wrote (on Wed, Aug 11, 2010 at 05:20:52PM -0700): > I noticed on our firewall that there were constant connections from the > machine running Postfix to addresses all over the world. The interesting > thing is that the connection is using OpenDNS [208.67.216.132], a public DNS > s

Re: question about Postfix and DNS (maybe not for this list)

2010-08-11 Thread Matt Hayes
On 08/11/2010 08:20 PM, Christopher Adams wrote: Hello all, I am having a bit of a problem and I am not sure that it is specifically Postfix-related, but I'll give it a shot. Feel free to flog me or tell me to go away. I am running Postfix 2.3 on a CentOS Linux server. I noticed on our firewa

Re: question about Postfix and DNS (maybe not for this list)

2010-08-11 Thread Jose Ildefonso Camargo Tolosa
Hi! On Wed, Aug 11, 2010 at 7:50 PM, Christopher Adams wrote: > Hello all, > > I am having a bit of a problem and I am not sure that it is specifically > Postfix-related, but I'll give it a shot. Feel free to flog me or tell me to > go away. Ok: go away! No, just kidding, read on. > > I am run

Re: question about Postfix and DNS (maybe not for this list)

2010-08-11 Thread Walter Pinto
Setup snort and find out where the connections are coming from. There are many ways to do this. also check /etc/sysconfig/networking/profiles/default/resolv.conf Is your server behind a NAT firewall?

question about Postfix and DNS (maybe not for this list)

2010-08-11 Thread Christopher Adams
Hello all, I am having a bit of a problem and I am not sure that it is specifically Postfix-related, but I'll give it a shot. Feel free to flog me or tell me to go away. I am running Postfix 2.3 on a CentOS Linux server. I noticed on our firewall that there were constant connections from the mac