search for: tcp_keepalive_interv

...d like to know some info about them. THe first is: [2004/01/03 10:49:26, 0] lib/util_sock.c:set_socket_options(160) Failed to set socket option SO_KEEPALIVE (Error Invalid argument) I noticed that SO_KEEPALIVE is compiled by default into Samba, and on Solaris it is on by default. The value of tcp_keepalive_interval is 7200000. I can change this value, but don't want to mess with it unless I'm really sure of what I'm doing. Why the invalid argument error? Next one is this: [2004/01/10 00:06:12, 0] locking/posix.c:posix_fcntl_lock(657) posix_fcntl_lock: WARNING: lock request at offset 0, len...

I'm in the process of rolling out new setups with dovecot on CentOS 5.2 and I notice that dovecot doesn't handle the brute-force attacks too nice. I reduced the limit a bit to some reasonable looking value: login_max_processes_count = 32 to stop them earlier and the number of processes stops at that figure when an attack happens. However, it stays at this count for hours although the