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I have ASUSTOR NAS with ADM OS inside (factory default) and squid proxy inside the NAS, and 100 windows client connected with this proxy,
The problem:
-Cpu increase 100% when all of client active surfing in to internet, and squid not responding,
In cache log file i found “warning ! Your cache out of filedescriptor” it’s appear every minutes, when no clients to, finaly i try change the number of maximum file descriptor and i not found the directory of /etc/security/limits.conf and also the file, not listed on the ADM OS ASUSTOR, i try and try searching about this OS but found nothing about this problem,
-i try change in to sysctl.conf, after restarting the machine the value i changed before back again to default. back again and again.
I try with this tutorial
https://www.cyberciti.biz/faq/squid-proxy-server-running-out-filedescriptors/
i can’t found the directory and file inside etc folder, etc/security/limits.conf
Can’t find limits.conf