[Ilugc] doubt on ssh connection

[Sai Kiran Kanuri]

On Mon, Apr 5, 2010 at 2:47 PM, venkat raman <infoappu.linux at gmail.com>
wrote:

>         1.how do we restart the 20  apache servers within 2 minutes using
> ssh connection.
>

You might want to look at FUNC. but this would need initial setup.

https://fedorahosted.org/func/

alternatively u can go the SSH path. setup key based logins & any simple
script should do.



>         2.how do we find out how many connections established to mysql
> database or apache server(number of hits)

netstat might be a simple way. I am not sure if MYSQL let's u query that.



>         3.when we using the top command on what basis it will give
priority
> to display the process

CPU, but you can change the sorting order.. check manpage

>         5.how do we filter the warning log message from /var/log/maillog

One way is you can setup your syslog to log the messages to a different
file. the default Syslog/rsyslog, doesn't offer you much room, you can look
at syslog-ng. It is pretty good & might just meet you requirement.


>         6.Is it necessary  a windows user having id in linux box for
> accesing a file using in samba server

No


>         7.Default block size in linux

4K i guess. Not sure

>        8. A system has 2 nic cards..how do we check which one is up or
> which one is down

ethtool


- Kiran