Does anyone recommend (or have a netstat script) that will print the IP sending the most of X (where X is FIN_WAIT, SYN_RECV, etc.).
Like, I have this
netstat -nat | awk '{print $6}' | sort | uniq -c | sort -n
Which will nicely print out:
1 CLOSE_WAIT
1 established)
1 Foreign
3 FIN_WAIT1
3 LAST_ACK
13 ESTABLISHED
17 LISTEN
154 FIN_WAIT2
327 TIME_WAIT
But I don't know how to figure out which IP is sending the most TIME_WAITs.
I recently set up a new user using "adduser username" on my server and noticed that when I login I get:
$
Also, with my new user there is no folder highlighting, or tab completion.
However when I login as root I get a full terminal prompt plus highlighting, completion etc.
root@lin01:~#
Anyone have any idea what I did wrong?
Edit: Solution was to type
chsh -s /bin/bash
While logged in with the $.
Can anyone explain in layman's terms what the difference between soft and hard limit is?
Should I set my soft and hard limit to be the same? Or should soft be significantly lower? Does the system benefit either way?
In Ubuntu 9 I am receiving a message on my server that says:
(node) Hit max file limit. Increase "ulimit -n"
However, typing commands in the terminal reveals the following:
$ ulimit
unlimited
$ ulimit -n
65535
And a netstat reveals I only have ~1000 connections open.
How is it possible I am hitting my limit of 65535 despite netstat saying I have 1000 active connections? Does anyone see a server config issue I might be overlooking or have tips for debugging further?