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Sep
30
asked How to mitigate error “kernel: nf_conntrack: table full, dropping packet”
Sep
30
comment How to reliable re-install nf_conntrack module after removal?
Hmm, lsmod returns nothing (and I haven't removed anything yet). Perhaps I'm misunderstanding something?
Sep
29
comment How to reliable re-install nf_conntrack module after removal?
@HBruijn - I realise that it's necessary for certain types of rules in iptables (like those using the state keyword), but as I understand it, if these rules are not being used, then it is unnecessary. Is there something non-iptables that uses it in a standard config?
Sep
29
comment HAProxy high CPU usage - configuration issue?
Splitting into two processes is an interesting idea that I had not considered, thank you. Static traffic is very low, as we are behind a CDN, however spitting http app calls and the websocket traffic might be worth taking a look at. I suppose it would complicate our DNS records a little bit, but not a big deal. I'd like to see if I'm doing anything terribly wrong with the config first, but will certainly consider this.
Sep
29
comment How to reliable re-install nf_conntrack module after removal?
Just to follow up. Do you know of a good way to check if the modules have been loaded back? I'm a little concerned that something might load them again without my knowledge
Sep
29
comment How to reliable re-install nf_conntrack module after removal?
Thanks. I think I've already removed/modified and iptables rules that use these modules. (Updated question now with this and your point about modprobe lists).
Sep
29
revised How to reliable re-install nf_conntrack module after removal?
added 85 characters in body
Sep
29
asked How to reliable re-install nf_conntrack module after removal?
Sep
28
comment HAProxy high CPU usage - configuration issue?
@ChristopherPerrin - That's a long story which I don't want to get into here.
Sep
28
revised HAProxy high CPU usage - configuration issue?
deleted 6 characters in body
Sep
28
revised HAProxy high CPU usage - configuration issue?
deleted 174 characters in body
Sep
26
comment how do I disable the nf_conntrack kernel module in CentOS 5.3 without recompiling the kernel
Does anyone know how you'd reverse step 4 if you needed to?
Sep
26
asked HAProxy high CPU usage - configuration issue?
Sep
11
awarded  Notable Question
Aug
31
comment Understanding ntpd entry in syslog
Thank you! I wonder why the error message couldn't just say something like this?
Aug
31
accepted Understanding ntpd entry in syslog
Aug
31
asked Understanding ntpd entry in syslog
Aug
29
comment Simple method of detecting and reporting server outage?
@kasperd - In this case I'm monitoring for a very specific failure scenario, and ping will be sufficient.
Aug
29
asked Simple method of detecting and reporting server outage?
Aug
28
comment Why might debian become unresponsive with virtually 0% CPU usage?
@AndrewSchulman I don't see anything in kern.log or syslog that looks like an error.