*SOLVED* SMTP-Problem with OpenVZ-Kernel [message #3100] |
Fri, 12 May 2006 09:54 |
arvid-dd
Messages: 4 Registered: May 2006
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Junior Member |
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Hello,
I use a VPS as SMTP-Relay. Now I discovered a problem. When my VPS is trying to connect to one specific Firewall on Port 25 the communication is stopped. If I
simulate this with telnet, it looks like this :
---------------snipp------------------------
Telnet 1.2.4.6 25
Trying 1.2.3.4...
Connected to 1.2.3.4.
Escape character is '^]'.
2
---------------------------------------------
As you can see there comes an answer from this Firewall but the Packet is not transferred completely.
I have tried this with OpenVZ-Kernels between 2.6.8-022stab061.1 and 2.6.8-022stab077.1 with and without SMP.
My Machine is a DualXeon-Server and the problematic firewall is a Netscreen 5 GT with Trendmicro Antivirus. By the way, if i disable the Trendmicro Antivirus it works but this is not really an option.
Also i have tried the test kernel 2.6.16-026test012.1 and this works quite perfectly. Does anybody have a suggestion for me or do i have to wait until kernel 2.6.16 becomes stable?
[Updated on: Wed, 02 August 2006 06:49] by Moderator Report message to a moderator
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Re: SMTP-Problem with OpenVZ-Kernel [message #3131 is a reply to message #3121] |
Sun, 14 May 2006 08:51 |
arvid-dd
Messages: 4 Registered: May 2006
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Junior Member |
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Yes, I have observed communication between the firewall and my Server. It is ok if the trendmicro antivirus is disabled. The funny thing is that any other server can communicate to port 25 on this
firewall without any problem. I have tried different machines with different hardware. This problem arises on every machine with OpenVZ-Kernel-2.6.8. The SMTP Relay on the VPS communicates to many other servers without a problem. Because it works with the new OVZ-Kernel 2.6.16 , I think it is somehow
a network problem with 2.6.8.
[Updated on: Sun, 14 May 2006 09:03] Report message to a moderator
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