Hello, I have a query about how --with-filedescriptors and ulimit. Every 2-3 days I keep getting WARNING that system is running out of descriptors. I compiled squid using --with-filedescriptors=16384. So do I still need to set ulimit before starting squid? Or does squid automatically set ulimit? (as it starts as root) I am using Fedora 16 with systemd squid.service (standard fedora file, no change) Cache.log says: 2013/02/14 10:28:52 kid1| With 16384 file descriptors available which is as expected. squidclient gives this: [root@localhost ]# squidclient -h 127.0.0.1 mgr:info |grep -i desc File descriptor usage for squid: Maximum number of file descriptors: 16384 Largest file desc currently in use: 888 Number of file desc currently in use: 774 Available number of file descriptors: 15610 Reserved number of file descriptors: 100 ulimit -H -n gives 4096 ulimit -n gives 1024 These are standard Fedora settings, I have not made any changes. So back to my question: If I am compiling squid with --with-filedescriptors=16384 do I need to set ulimit before starting squid? Or does squid automatically set ulimit? Thanks Amm.