[Firehol-support] SMTP/Telnet Problem

Costa Tsaousis costa at tsaousis.gr
Fri Nov 30 01:17:10 CET 2007


Richard Williams wrote:
>
> Hi
>
>  
>
> I’ve been running with an unchanged Firehol config for a couple of 
> years but have suddenly come across a problem trying to send email to 
> one particular server.  To try to identify the cause of the problem 
> I’ve run telnet to that server on port 25.  this is what I get in the 
> log: (I’ve overwritten my IP addresses to protect the innocent)
>
>  
>
> Nov 29 10:08:25 mail kernel: OUT-unknown:IN= OUT=eth1 SRC=public_ip 
> DST=77.75.72.32 LEN=60 TOS=0x10 PREC=0x00 TTL=64 ID=39033 DF PROTO=TCP 
> SPT=54822 DPT=25 WINDOW=5840 RES=0x00 SYN URGP=0
>
> Nov 29 10:08:28 mail kernel: OUT-unknown:IN= OUT=eth1 SRC=public_ip 
> DST=77.75.72.32 LEN=60 TOS=0x10 PREC=0x00 TTL=64 ID=39034 DF PROTO=TCP 
> SPT=54822 DPT=25 WINDOW=5840 RES=0x00 SYN URGP=0
>
>  
>
> This doesn’t happen when I telnet to other SMTP servers and I can 
> connect perfectly OK when Firehol is switched off.
>
>  
>
> Any ideas on what might be wrong here?
>
>  
>
Have you tried to update your PRIVATE_IPS?

Costa





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