Max concurrent user

http://forums.cpanel.net/f189/how-raise-maxclient-apache-2-2-16-a-170946.html

Place the limits in /usr/local/apache/conf/includes/pre_main_global.conf file for ServerLimit and MaxClients instead, then run the following commands:

Code:

cp /usr/local/apache/conf/httpd.conf /usr/local/apache/conf/httpd.conf.bak101029 /usr/local/cpanel/bin/apache_conf_distiller --update /scripts/rebuildhttpdconf /etc/init.d/httpd restart

This will backup your current httpd.conf, run the distiller to distill the changes in the include file, rebuild Apache configuration file, then restart Apache.

secure tmp folder for cpanel

this is shortcut if you do not want to manually edit file

http://apis17.blogspot.com/2011/03/how-to-secure-tmp.html

use command

/scripts/securetmp

reference: http://www.600host.net/blog/2009/06/09/cpanel-vps-security-measures/

how to secure tmp

Step 1: Securing /tmp
Step 1.1: Backup your fstab file

cp /etc/fstab /etc/fstab.bak

Step 1.2: Creating tmpmnt partition file (Around 1Gb in size)

cd /var
dd if=/dev/zero of=tmpMnt bs=1024 count=1048576

Step 1.3: Format the new partition

mkfs.ext3 -j /var/tmpMnt

Press Y when asked
Step 1.4: Making backup of old /tmp

cp -Rp /tmp /tmp_backup

Step 1.5: Mount the tmp filesystem

mount -o loop,noexec,nosuid,rw /var/tmpMnt /tmp

Step 1.6: Set the right permissions

chmod 0777 /tmp

Step 1.7: Copy the files back to new tmp folder

cp -Rp /tmp_backup/* /tmp/

Step 1.8: Adding new /tmp filesystem to fstab

echo "/var/tmpMnt /tmp ext3 loop,rw,noexec,nosuid,nodev 0 0" >> /etc/fstab

Step 2: No need for 2 tmp filesystems, so we symlink /var/tmp to /tmp

rm -rf /var/tmp/
ln -s /tmp/ /var/tmp

referer: http://www.directadmin.com/forum/showthread.php?t=29807

install vi, vim and components

yum install vim-X11 vim-common vim-enhanced vim-minimal

http://nixcraft.com/linux-software/434-how-install-vim.html

change centos hostname

command

vi /etc/sysconfig/network

edit hostname. enter i to edit

Configure sendmail : Step by step

Figured out this website:

http://www.computernetworkingnotes.com/rhce_certification/sendmail_server.htm

http://www.linuxhomenetworking.com/wiki/index.php/Quick_HOWTO_:_Ch21_:_Configuring_Linux_Mail_Servers

Store links here for future reference

*Updated: new howto's

http://www.linuxjournal.com/article/5507

cannot make on centos

use this to install all developer tool

yum groupinstall "Development Tools"

Reference : http://stackoverflow.com/questions/171506/make-and-build-utilities-on-centos-rhel

proftpd on centos

use this resources to install proftpd on centos machine.

http://www.cyberciti.biz/tips/linux-installing-configuring-proftpd-ftp-server.html

Ez2reload Website Still Disabled

Testing my clipmark post function..

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Interesting Linux Gadget

1. ntop.. status: installed (OK)
2. Webmin.. status: downloaded but cannot run at this momment.. hehe

more tool next time lah..