Server stuck on boot (fail2ban)

Prestige

I'm trying to start this service but I keep getting errors on console:

Is there a way to get in the server and fix this issue?

Thanks.

ATHK

http://www.pc-freak.net/blog/resolving-nf_conntrack-table-full-dropping-packet-flood-message-in-dmesg-linux-kernel-log/

In short, this message is received because the nf_conntrack kernel maximum number assigned value gets reached.
The common reason for that is a heavy traffic passing by the server or very often a DoS or DDoS (Distributed Denial of Service) attack.

https://major.io/2014/01/07/nf-conntrack-table-full-dropping-packet/

If you can't access the server via SSH or the serial console, shut it down until whatever it is passes...

jar

ATHK said: The common reason for that is a heavy traffic passing by the server or very often a DoS or DDoS

Aye, this. If your conntrack table is maxed the second your networking starts up, you're not going to get far after that. I would boot in single user mode and examine some logs. It's port 80 so check your web access logs for odd activity.

Microlinux

Well, that's quick.

ATHK

@Microlinux said:
Well, that's quick.

Ninja.