linuxavid

=========================================== https://docs.google.com/file/d/0B_Z7t7PO4imFOGtYdU5VZm1sMms/edit ============================================

Usage ./scripts user1 user2 user3 You can also run a server-wide loop like this: for i in `ls -A /var/cpanel/users` ; do ./scripts $i ; done  code =========== #!/bin/bash if [ "$#" -lt "1" ];then echo "Must specify user" exit; fi USER=$@ for user in $USER do HOMEDIR=$(egrep "^${user}:" /etc/passwd | cut -d: -f6) if [ ! -f /var/cpanel/users/$user ]; then echo "$user user file missing, likely an invalid user" elif [ "$HOMEDIR" == "" ];then echo "Couldn't determine home directory for $user" else echo "Setting ownership for user $user" chown -R $user:$user $HOMEDIR chmod 711 $HOMEDIR chown $user:nobody $HOMEDIR/public_html $HOMEDIR/.htpasswds chown $user:mail $HOMEDIR/etc $HOMEDIR/etc/*/shadow $HOMEDIR/etc/*/passwd echo "Setting permissions for user $USER" find $HOMEDIR -type f -exec chmod 644 {} \; -print find $HOMEDIR -type d -exec chmod 755 {} \; -print find $HOMEDIR

You can download the script to execute mysql upgrade ./scriptfilename versionreq --posteasybuild (run easyapache after upgrade) ./scriptfilename versionreq (only do mysql upgrade) if [ " $( id -u ) " ! = " 0 " ] ; then echo " You must be root to run this script " exit 1 fi #overall backup mysqldump -A > /root/mysqlbackup.sql CPANEL_VERSION= $( cat /usr/local/cpanel/version | cut -d. -f2 ) CURRENT_VERSION= $( mysql -V | awk ' {print $5} ' | cut -d. -f1,2 ) # Get the target version if [ -z $1 ] || [[ $1 != ' 5.0 ' && $1 != ' 5.1 ' && $1 != ' 5.5 ' && $1 != ' 5.6 ' ]] ; then echo " Please spe

hdparm switches explained http://manpages.ubuntu.com/manpages/intrepid/man8/hdparm.8.html   First of all you have to install hdparm in linux. apt-get install hdparm #hdparm /dev/sda /dev/sda: readonly = 0 (off) readahead = 120 (on) geometry = 8850/255/63, sectors = 142182912, start = 0 Hard disk Performance Information # hdparm -tT /dev/hda /dev/hdd: Timing cached reads: 496 MB in 2.00 seconds = 247.42 MB/sec Timing buffered disk reads: 60 MB in 3.03 seconds = 19.81 MB/sec Hard drive set to low, slow settings # hdparm -cuda /dev/hda /dev/hda: IO_support = 0 (default 16-bit) unmaskirq = 0 (off) using_dma = 0 (off) readahead = 256 (on) Use below tweaks to increase disk read write performance. For sda drive ~]# hdparm -a 2048 /dev/sda /dev/sda: setting fs readahead to 2048 readahead = 2048 (on) For sdb drive [root@439298a ~]# hdparm -a 2048 /dev/sdb /dev/sdb: setting fs readahead to 2048 readahead = 2048 (on) ]# echo “anticipatory” > /sy

You may close this window and view the transfer on the command line: /usr/local/cpanel/bin/view_transfer 1071601843quick20141013154952IAZhRro Access your server via SSH and run that command (the transfer name will be different on your server): /usr/local/cpanel/bin/view_transfer 1071601843quick20141013154952IAZhRro As an example, you might see output like this: Transfer running with pid: paused [795 ][MASTER ]: Start Session [795 ][MASTER ]: Version: 1.9 You will note that the master PID for this transfer is xxx. If the process still exists, and the transfer has failed, then you can kill that process: kill -9 xxx The next step requires you to change the entry for this transfer in the whmxfer.sessions table in MySQL . Find the entry with the session ID for your migration. In the example we have been using, it’s ‘ 1071601843quick20141013154952IAZhRro .’ It will look like this: mysql -e “select * from whmxfer.sessions where sessionid=’1071601843quick20141013152

1. Process resource monitor plugin PRM (from RFX Networks) monitors the process table on a given system and matches process id’s with set resource limits in the config file or per-process based rules. Process id’s that match or exceed the set limits are logged and killed; includes e-mail alerts, kernel logging routine and more. Install, remove, update and manage this feature in this section wget http://www.rfxn.com/downloads/prm-current.tar.gz      2.Linux Socket Monitor LSM is a bash scripted network socket monitor. It is designed to track changes to Network sockets and Unix domain sockets. Installation Download the tar file usign the below link: wget http://rfxnetworks.com/downloads/lsm-current.tar.gz Untar the file tar -zxvf lsm-current.tar.gz go inside the extracted folder cd lsm-0.* run the below command to install it ./install.sh LSM Testing /usr/local/sbin/lsm -c /usr/local/sbin/lsm -g 3. Install Configserver fir

    root@kali:~# iw dev root@kali:~# ip link set wlan0 up root@kali:~# iw wlan0 scan root@kali:~# wpa_passphrase blackMOREOps >> /etc/wpa_supplicant.conf root@kali:~# wpa_supplicant -i wlan0 -c /etc/wpa_supplicant.conf root@kali:~# iw wlan0 link root@kali:~# dhclient wlan0 root@kali:~# ping 8.8.8.8 (Where wlan0 is wifi adapter and blackMOREOps is SSID) (Add Routing manually) root@kali:~# ip route add default via 10.0.0.138 dev wlan0    

host# vzctl chkpnt 101 --dump --dumpfile /tmp/Dump.101 host# mv /etc/vz/conf/101.conf /etc/vz/conf/102.conf host# mv /vz/private/101 /vz/private/102 host# mv /vz/root/101 /vz/root/102 host# vzctl restore 102 --undump --dumpfile /tmp/Dump.101       or  vzctl stop oldveid  mv /vz/root/oldveid /vz/root/newveid  mv /vz/private/oldveid /vz/private/newveid  mv /var/vzquota/quota.oldveid /var/vzquota/quota.newveid  mv /etc/sysconfig/vz-scripts/oldveid.conf /etc/sysconfig/vz-scripts/newveid.conf  vzctl start newveid

 Try the below steps vzquota drop veid vzquota off veid vzctl restart veid

watch -n 1 'ps -e -o pid,uname,cmd,pmem,pcpu --sort=-pmem,-pcpu | head -15'    Every 1.0s: ps -e -o pid,uname,cmd,pmem,pcpu --sort=-pmem,-pcpu | head -15 Mon Jan 12 17:57:24 2015 PID USER CMD %MEM %CPU 1953 rahul /usr/lib/firefox/firefox 18.7 18.4 1751 rahul cinnamon --replace 2.5 3.2 1193 root /usr/bin/X :0 -audit 0 -aut 1.8 3.0 2170 rahul totem /media/rahul/C384-4DE 1.2 0.1 1769 rahul nemo -n 1.0 0.0 1915 rahul python /usr/lib/linuxmint/m 0.8 0.0 4650 rahul gedit /home/Apache bench ma 0.7 0.0 1543 rahul /usr/lib/cinnamon-settings- 0.5 0.0 2256 rahul gnome-terminal 0.5 0.0 1909 rahul cinnamon-screensaver 0.4 0.0 1737 rahul /usr/bin/python /usr/bin/ci 0.4 0.0 1770 rahul nm-applet 0.4 0.0 1768 rahul /usr/lib/cinnamon-settings- 0.4 0.

Apache bench marking ======================= Things or checklist to be considered before the test     CPU: avoid power-saving mode. cpufreq-set -g performance.     File descriptors: raise the limit to (at least) the number of concurrent connections you wish to handle, using ulimit -n in your shell, or setrlimit(RLIMIT_NOFILE) in your server. Beware, some systems forbid you to raise the limit, you might need to investigate a bit to find how to unlock it.     Disable the logs of your server (you do not want to lose time logging thousands of requests instead of answering them).     Raise /proc/sys/net/somaxconn to the number of concurrent connections you want to handle. To understand why this is necessary, read the technical report or the excellent paper Measuring the Capacity of a Web Server (Banga and Druschel, Usenix 97). More on the fascinating topic of the accept() queue can be found in accept()able Strategies for Improving Web Server Performance (Brecht et al., Usenix 04) a