network card restart terus menerus
tambahkan pcie_aspm=off ke akhir kernel line di /etc/grub.conf
tambahkan intremap=off ke akhir kernel line di /etc/grub.conf
reboot server
November 17, 2015
eth Reset Adapter
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August 15, 2015
December 24, 2014
August 27, 2014
Install iRedMail
cd /root/ wget https://bitbucket.org/zhb/iredmail/downloads/iRedMail-0.8.7.tar.bz2 tar xjf iRedMail-0.8.7.tar.bz2 cd /root/iRedMail-0.8.7 bash iRedMail.sh
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September 1, 2013
Check Mod Security Version
/scripts/restartsrv_httpd
grep "modsecurity" /usr/local/apache/logs/error_log
Output:
[Mon Sep 02 00:32:46 2013] [notice] ModSecurity for Apache/2.7.5 (http://www.modsecurity.org/) configured.
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July 18, 2013
Check Hard Drive Health In Linux With HDSentinel
cd /home/status/
wget http://www.hdsentinel.com/hdslin/hdsentinel_008_x64.zip
unzip hdsentinel*
chmod 755 HDSentinel
./HDSentinel
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October 9, 2012
More History
1. Display timestamp using HISTTIMEFORMAT
export HISTTIMEFORMAT='%F %T '
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August 16, 2012
Install Bonnie++
Download the latest atrpms-repo rpm from http://dl.atrpms.net/el6-x86_64/atrpms/stable/
Install atrpms-repo rpm:
rpm -Uvh atrpms-repo*rpm
Install bonnie++ rpm package:
yum install bonnie++
Source: http://pkgs.org/centos-6-rhel-6/atrpms-x86_64/bonnie++-1.03e-6.el6.x86_64.rpm.html#howto
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July 9, 2012
July 1, 2012
Error ip_conntrack: table full, dropping packet
Error ip_conntrack: table full, dropping packet terjadi karena banyaknya kunjungan ke server dan menyebabkan database iptable menjadi penuh
solusi:
1. naikkan kapasitas iptable
echo 131072 > /proc/sys/net/ipv4/ip_conntrack_max
2. flush kosongkan iptable
iptables -P
iptables -F
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