Red Hat Bugzilla – Bug 7037
wu-ftpd fails to bind to ftp-data
Last modified: 2008-05-01 11:37:52 EDT
wu-ftp-2.6.0-1 can't bind to the ftp-data port every now and then. Once it
starts complaining to about it, I have for goto single user mode then back
to run level 3 to get it working again..
The redhat box is multi-homed and has about 400+ IP aliases.. In
/etc/ftpaccess we only have 3 virtual ftp sites define.
Here is what messages is saying..
ftpd: <--- 425 Can't build data connection: Connection refused.
This has happen to use several times.. it doesn't start happening right
away.. After the first time this happen it took another 2 weeks before this
showed up again... Now its coming up every two or three days..
kernel is 2.2.5-20 currently, we also had 2.2.12 do the same to us...
I thought it might be inetd causing this problem. So I increased the number
of connectiosn per second allowed. Then ran a port scan on the C class we
use. This resulted in inetd just completely disabling ftp like it is
suppose to do.. Any ideas?? Thanks!...
I think I solved the problem.. I just increase the number of files I could open
at a time. from 4096 to 8192... I also increased the number of inodes that could
Reporter indicates problem is solved.