OnLinux

Script to add multiple ips

#!/bin/bash
clear
a=51
for i in `seq 12 60 ` ;do
a=`expr $a + 1 `
path=/etc/sysconfig/network-scripts/ifcfg-eth0:$a

check=`ifconfig |grep "\<192.168.0.$i\>"`
if [ ! -f /etc/sysconfig/network-scripts/ifcfg-eth0:"$a" ]; then

if [ -z "$check" ]; then

cat >> $path << _eof_
DEVICE=eth0:$a
NETMASK=255.255.255.0
BOOTPROTO=static
IPADDR=192.168.253.$i
ONBOOT=yes
_eof_

echo -e "######## Added the IP aliases 192.168.0.$i ##############"
ifup eth0:$a
else
echo -e "The Ip address already exist"
fi
else
echo -e "The ip aliases $cf exist"
fi

done

RHCE link

http://elibrary.fultus.com/technical/index.jsp?topic=/com.fultus.redhat.elinux5/manuals/Deployment_Guide/ch55.html --

this script will test the server name of each system

#!/usr/bin/perl

use Net::Telnet ;

open ( IN,"/tmp/IDC_IPs") or die "cannot open file " ;

while ( $ip=<IN>) {

$t = new Net::Telnet ( Timeout=>3, Errmode=>'return', port =>'25' );

$t->open("$ip");

$output1 = $t->getline ;

$t->print("ehlo data");

($output2) = $t->getline ;

chomp($output2);

chomp($ip);

print "$ip $output2\n" ;

}

close IN ;

Documentation on ServerBackup

Now On the backupserver machines mkdir /net/serverbackup ----------> location where all the tar.gz files are stored This scritpt will wget the flles from vairous server vi /usr/local/bin/serverbackup #!/bin/bash set -x DIR=/net/serverbackup SERVERINFO=/net/serverbackup/serverbackupfiles cd /net/serverbackup if [ -d $DIR ] ;then if [ -f $SERVERINFO ];then for i in `cat $SERVERINFO |awk -F "|" '{print $2}'` do `cat $SERVERINFO |grep $i |awk -F "|" '{print $3}'``date +%Y%m%d`.tgz; done else echo " serverbackupfiles does not exist " fi else echo " serverbackup dir does not exist " fi This file (serverbackupfiles) is requied by the "serverbackup" script cat /net/serverbackup/serverbackupfiles |server112|wget --user=agnello --password=username http:///server112.com/serverbackup/pamserver2. crontab -e ##for serverbackup to weget the files 0 11 * * * /usr/local/bin/serverbackup Now On the system to be backed up cd /net/serverbackup ln -s /net/serverbackup /var/www/html/serverbackup vi /usr/local/bin/serverbackupdaily #!/bin/bash # set -x backupfile1="`date '+%Y%m%d'`" backupfile="servername.$backupfile1.tgz" if cd /; then tar zcf /tmp/$backupfile --exclude-from=/etc/backup/excludedaily `cat /etc/backup/BACKUPDAILY` mv /tmp/$backupfile /net/serverbackup chown -R web.web /net/serverbackup fi exit 0 vi /etc/httpd/conf/httpd.conf #setting for serverbackup AllowOverride AuthConfig AuthName "serverBackup login" AuthType Basic AuthUserFile /net/serverbackup/.htpasswd AuthGroupFile /dev/null require user serverbackup Order deny,allow Deny from all Allow from all htpasswd -bc /net/serverbackup/.htpasswd serverbackup password crontab -e ##for serverbackup 0 06 * * * /usr/local/bin/serverbackupdaily

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perl need to read !!

perl sample scripts

Script to add multiple ips

RHCE link

this script will test the server name of each system

learning perl

learning perl

Learning perl

perl scripting !!!

Documentation on ServerBackup

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