Asterisk eats all CPU

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Network problem

Change to correct ip in /etc/asterisk/h323.conf, restart Asterisk

If does not help -> go to DDOS attack.



DDOS attack

Unload chan_sip.so module. If it helps - proceed.

Load module back. Check sip debug. If a lot of packets come from one IP - block it.

Check if it helps.

If nothing helps -> check Broken Code section.




Broken code

Check with: http://www.moythreads.com/wordpress/2009/05/06/why-does-asterisk-consume-100-cpu/

Investigate the module which causes it.

If not critical (like IAX2) -> unload it and check if it helps. Rinse and repeat if not.

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