Postfix, tcpwrappers, denyhosts

Posterboy · 08-27-2007, 07:00 AM

I'm a 3 day newbie on Ubuntu, so please go slow.

Does postfix honor tcpwrappers? Why is there no /etc/deny.hosts?
I wrestled with denyhosts a long time, never made it work. I am familiar with it on FC6. I did a touch hosts.deny, set the perms, but it never writes into it when tested. Also, I set it for 3 attempts, it stays on 5 no matter what. I DARE not open sshd without that working. Help?
TIA, Ray

b0uncer · 08-27-2007, 07:14 AM

Maybe reading the manpage etc. helps, check this out:

linux.about.com/od/commands/l/blcmdl5_hostsde.htm

I thought hosts.allow and .deny should affect to everything, as tcpwrappers should really deal with any tcp traffic.

Posterboy · 08-27-2007, 10:20 AM

Yes, it does seem to affect all traffic on FC6, but certainly not on Ubuntu. This is not Ubuntu's fault, it's mine I'm sure, but I am at wit's end. in hosts.deny I have ALL: IPaddy that I want to deny. and it doesn't.
Some Ubuntu page suggested GDM: IPaddy, tried that, no help.
hosts.allow is empty. Denyhosts doesn't even write to it, when i test it, using ssh. Hmmm, Perms I have tried are 600 and 666. No change. HELP!