9. LINUX ADMINISTRATION

[root@cos ~]# echo "echo "startdate`date '+%d-%B-%Y'`" >> /root/start.txt" >>  /etc/rc.local

[root@cos ~]# cat start.txt

[noc@nc unixman]$ tar cjf 200900810.tar.bz2 200900810/

# transfer file to the server see under- 5) Secure Tunnel > MISC Tunneling

bash-3.00$ bzip2 -dc 200900810.tar.bz2 | tar xf -

[noc@nc unixman]$ tar xjf 200900810.tar.bz2

[root@ns1 var]# cat scripts-backup
#!/bin/bash
#check the file in /export/nsbackup before you run this scripts
tar cjf named-ns1-`date '+%d-%B-%Y'`.tar.bz2 named/
mv *.bz2 /export/nsbackup

noc@sol-11:~$ echo $((1000+750+1500+300+380+355))
4285

[root@nc ~]# export EDITOR=$(type -P nano);crontab -e

30 4 * * * /home/rou/sql-backup <- 430 am mornng
*/30 * * * * php /home/noc/ghost.php >> /var/log/ghost/horse.log <- every 30min & create log

Date: Fri Dec 14 12:02:00 MSK 2012
To: hanturaya@gmail.com
Subject: Test cpp sendmail
From: rou@somewikan.com

if you can get this msg mean sendmail is working

noc@sol-11:~$ /usr/sbin/sendmail -t < mail.txt

[root@z1-DeskC6 ~]# hwclock --localtime --systohc

[root@ipx ~]# free -m |grep Swap
Swap:         1200        978        221

[root@ipx ~]# dd if=/dev/zero of=/swap bs=1024 count=2097152
2097152+0 records in
2097152+0 records out
2147483648 bytes (2.1 GB) copied, 223.838 seconds, 9.6 MB/s

[root@ipx ~]# mkswap /swap && chown root. /swap && \
> chmod 0600 /swap && swapon /swap
Setting up swapspace version 1, size = 2147479 kB

[root@ipx ~]# echo /swap swap swap defaults 0 0 >> /etc/fstab
[root@ipx ~]# echo vm.swappiness = 0 >> /etc/sysctl.conf && sysctl -p
net.ipv4.ip_forward = 1
trunked.........................

[root@ipx ~]# free -m |grep Swap
Swap:         3248        978       2269
[root@ipx ~]#

[rou@xweb ~]$ date
Thu Jul 25 07:01:27 MYT 2013
[rou@xweb ~]$ su -
Password:
[root@xweb ~]# ntpdate 2.my.pool.ntp.org
25 Jul 23:05:49 ntpdate[10886]: step time server 119.110.97.148 offset 57741.310119 sec

[root@xweb ~]# date
Thu Jul 25 23:06:00 MYT 2013
[root@xweb ~]#

[noc@forensic ~]$ tar -czp backup/ | gpg -c -o backup.tar.gz.gpg

[noc@forensic ~]$ gpg --decrypt-files backup.tar.gz.gpg

[root@forensic noc]# chown -R noc public_html/

[root@forensic noc]# usermod -m -d /backup/sysadm sysadm

[root@localhost ~]# hostnamectl set-hostname --static t100fc20.noc.net.my