Hello. This morning we didn't have internet. Checked squid's cache.log and found: 2010/01/26 09:10:07| client_side.cc(2843) WARNING! Your cache is running out of filedescriptors 2010/01/26 09:10:23| client_side.cc(2843) WARNING! Your cache is running out of filedescriptors 2010/01/26 09:10:39| client_side.cc(2843) WARNING! Your cache is running out of filedescriptors 2010/01/26 09:10:55| client_side.cc(2843) WARNING! Your cache is running out of filedescriptors 2010/01/26 09:11:11| client_side.cc(2843) WARNING! Your cache is running out of filedescriptors 2010/01/26 09:11:24| clientNatLookup: NF getsockopt(SO_ORIGINAL_DST) failed: (2) No such file or directory 2010/01/26 09:11:28| client_side.cc(2843) WARNING! Your cache is running out of filedescriptors 2010/01/26 09:11:44| client_side.cc(2843) WARNING! Your cache is running out of filedescriptors 2010/01/26 09:12:01| client_side.cc(2843) WARNING! Your cache is running out of filedescriptors 2010/01/26 09:12:17| client_side.cc(2843) WARNING! Your cache is running out of filedescriptors 2010/01/26 09:12:50| client_side.cc(2843) WARNING! Your cache is running out of filedescriptors 2010/01/26 09:12:52| clientNatLookup: NF getsockopt(SO_ORIGINAL_DST) failed: (2) No such file or directory 2010/01/26 09:13:06| client_side.cc(2843) WARNING! Your cache is running out of filedescriptors 2010/01/26 09:13:22| client_side.cc(2843) WARNING! Your cache is running out of filedescriptors 2010/01/26 09:15:00| client_side.cc(2843) WARNING! Your cache is running out of filedescriptors 2010/01/26 09:15:00| clientNatLookup: NF getsockopt(SO_ORIGINAL_DST) failed: (2) No such file or directory 2010/01/26 09:20:59| client_side.cc(2843) WARNING! Your cache is running out of filedescriptors 2010/01/26 09:20:59| clientNatLookup: NF getsockopt(SO_ORIGINAL_DST) failed: (2) No such file or directory 2010/01/26 09:25:41| client_side.cc(2843) WARNING! Your cache is running out of filedescriptors 2010/01/26 09:25:41| clientNatLookup: NF getsockopt(SO_ORIGINAL_DST) failed: (2) No such file or directory 2010/01/26 09:30:41| client_side.cc(2843) WARNING! Your cache is running out of filedescriptors 2010/01/26 09:30:41| clientNatLookup: NF getsockopt(SO_ORIGINAL_DST) failed: (2) No such file or directory 2010/01/26 09:35:06| client_side.cc(2843) WARNING! Your cache is running out of filedescriptors 2010/01/26 09:35:06| clientNatLookup: NF getsockopt(SO_ORIGINAL_DST) failed: (2) No such file or directory 2010/01/26 09:37:05| client_side.cc(2843) WARNING! Your cache is running out of filedescriptors 2010/01/26 09:37:05| clientNatLookup: NF getsockopt(SO_ORIGINAL_DST) failed: (2) No such file or directory 2010/01/26 09:41:30| client_side.cc(2843) WARNING! Your cache is running out of filedescriptors 2010/01/26 09:41:30| clientNatLookup: NF getsockopt(SO_ORIGINAL_DST) failed: (2) No such file or directory 2010/01/26 09:53:50| client_side.cc(2843) WARNING! Your cache is running out of filedescriptors 2010/01/26 09:53:50| clientNatLookup: NF getsockopt(SO_ORIGINAL_DST) failed: (2) No such file or directory Don't know what is causing this I configured squid3.0STABLE20 with these options: ./configure --prefix=/usr/local/squid \ --sysconfdir=/etc/squid \ --enable-delay-pools \ --enable-kill-parent-hack \ --disable-htcp \ --enable-default-err-language=Spanish \ --enable-linux-netfilter \ --disable-ident-lookups \ --localstatedir=/var/log/squid3.1 \ --enable-stacktraces \ --with-default-user=proxy \ --with-large-files \ --enable-icap-client \ --enable-async-io \ --enable-storeio="aufs" \ --enable-removal-policies="heap,lru" \ --with-maxfd=16384 How can I fix this problem? Thanks in advanced for your help.