PHP Warning: PHP Startup: Unable to load dynamic library ‘/usr/lib64/php/modules/imagick.so’ – liblcms2.so.2: cannot open shared object file: No such file or directory in Unknown on line 0

Not able to install imagick on CentOS, fedora or RHEL

liblcms2.so.2: cannot open shared object file

Install following packages in RHEL, fedora or CentOS

yum install lcms2

ILO monitoring with Zabbix

ILO monitring can be done via ipmi checks, you need to install freeipmi on linux: yum install freeipmi

/usr/sbin/ipmi-sensors -D LAN2_0 -h 192.168.0.7 -u administrator -p PASSWORD -l USER -W discretereading –no-header-output –quiet-cache –sdr-cache-recreate –comma-separated-output –entity-sensor-names

output:

0,System Chassis 1 UID Light,OEM Reserved,N/A,N/A,’OEM Event = 0000h’
1,System Chassis 2 Sys. Health LED,OEM Reserved,N/A,N/A,’OEM Event = 0000h’
2,Power Supply 1 Power Supply 1,Power Supply,45.00,W,’Presence detected’
3,Power Supply 2 Power Supply 2,Power Supply,90.00,W,’Presence detected’
4,Power Supply 3 Power Supplies,Power Supply,N/A,N/A,’Fully Redundant’
6,System Board 1 Fan 1,Fan,29.40,%,’transition to Running’
7,System Board 2 Fan 2,Fan,29.40,%,’transition to Running’
8,System Board 3 Fan 3,Fan,30.58,%,’transition to Running’
9,System Board 4 Fan 4,Fan,30.58,%,’transition to Running’
10,System Board 5 Fan 5,Fan,25.87,%,’transition to Running’
11,System Board 6 Fan 6,Fan,13.72,%,’transition to Running’
12,System Board 7 Fans,Fan,N/A,N/A,’Fully Redundant’
14,Air Inlet Temp 1,Temperature,21.00,C,’OK’
15,Processor 1 Temp 2,Temperature,40.00,C,’OK’
16,Processor 2 Temp 3,Temperature,40.00,C,’OK’
17,Memory Module 1 Temp 4,Temperature,30.00,C,’OK’
18,Memory Module 2 Temp 5,Temperature,29.00,C,’OK’
19,Memory Module 3 Temp 6,Temperature,36.00,C,’OK’
20,Memory Module 4 Temp 7,Temperature,36.00,C,’OK’
21,Power Unit 1 Temp 8,Temperature,42.00,C,’OK’
22,Power Unit 2 Temp 9,Temperature,36.00,C,’OK’
23,System Board 1 Temp 10,Temperature,43.00,C,’OK’
24,System Board 2 Temp 11,Temperature,33.00,C,’OK’
25,System Board 3 Temp 12,Temperature,40.00,C,’OK’
26,System Internal Expansion Board 1 Temp 13,Temperature,33.00,C,’OK’
27,System Internal Expansion Board 2 Temp 14,Temperature,35.00,C,’OK’
28,System Internal Expansion Board 3 Temp 15,Temperature,34.00,C,’OK’

when you ensure that ipmi is enabled on your server, and basic check is working, lets go to zabbix and set it up.

In Zabbix create a host with ipmi interface, and in IPMI tab setup the parameters, bellow are screenshots

Find out which version of Centos/Red Hat/Fedora you are running

bojan@veprina:~$ lsb_release -a

LSB Version:    :base-4.0-ia32:base-4.0-noarch:core-4.0-ia32:core-4.0-noarch:graphics-4.0-ia32:graphics-4.0-noarch:printing-4.0-ia32:printing-4.0-noarch
Distributor ID:    CentOS
Description:    CentOS release 6.4 (Final)
Release:    6.4
Codename:    Final

svn sync repo to local

If you need to sync for example public repository to local for purposes of backup or offline co, here is how to:

cd /data/repos/svn/
mkdir newrepo
NEWREPO=/data/repos/svn/newrepo/
echo ‘#!/bin/sh’ > $NEWREPO/hooks/pre-revprop-change
chmod +x $NEWREPO/hooks/pre-revprop-change
svnsync init file://$NEWREPO http://public.repo.url
svnsync sync file://$NEWREPO

User name and password is asked, exploring the posibility to add user to skip u/p prompts.

bind querlog

add this to your named.conf to enable more detail logging of whats your nameserver used to resolve.

 

logging {
        channel default_debug {
                file “data/named.run”;
                severity dynamic;
        };
        #test
        channel querylog{
                file “/var/named/chroot/var/log/querylog”;
                severity debug 10;
                print-category yes;
                print-time yes;
                print-severity yes;
        };
        category queries { querylog;};
};

802.1x auth on linux.

yum install wpa_supplicant

configuration: /etc/wpa_supplicant/wpa_supplicant.conf

ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=wheel

interface configuration: /etc/sysconfig/network-scripts/ifcfg-eth0

###domain credentials for RealGarant
###user: username
###pass: Jy0wvJay
DEVICE=”eth0″
NM_CONTROLLED=”yes”
ONBOOT=yes
TYPE=Ethernet
BOOTPROTO=none
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
NAME=”System eth0″
UUID=5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03
IEEE_8021X_EAP_METHODS=PEAP
IEEE_8021X_IDENTITY=”DOMAIN\\username”
IEEE_8021X_PASSWORD=Jy0wvJay
IEEE_8021X_CA_CERT=/root/new-CA.cer
KEY_MGMT=IEEE8021X
HWADDR=08:00:27:01:F8:C6
IEEE_8021X_INNER_AUTH_METHODS=MSCHAPV2
IPADDR=192.168.11.73
PREFIX=27
GATEWAY=192.168.11.65
DNS1=192.168.10.111
DNS2=192.168.20.111
LAST_CONNECT=1396438390

wpa_supplicant -Bw -Dwext -i eth0 -c /etc/wpa_supplicant.conf

search and replace for string in file

sed -i 's/old-word/new-word/g' *.txt

find disk uuid

ls -l /dev/disk/by-uuid/

output:

total 0
lrwxrwxrwx. 1 root root 10 Dec 26 15:39 1cf41136-4eb3-400d-be36-a0b90fb87b8e -> ../../sda1
lrwxrwxrwx. 1 root root 10 Dec 26 15:39 232e01ec-3e89-4fa2-bbbe-c010dd41e429 -> ../../dm-0
lrwxrwxrwx. 1 root root 10 Dec 26 15:39 e95ea07d-b3c3-4b34-bd9f-4aadabbc679f -> ../../dm-1

piix4_smbus force_addr=0xaddr

piix4_smbus 0000.00.07.0: SMBus base address uninitialized - upgrade bios or use force_addr=0xaddr

This error is caused by VM having no smbus but Ubuntu always trying to load the module. It doesn’t affect anything but is a bit annoying – to fix: –

1. Check module is being loaded: –

lsmod | grep i2c_piix4

2. If so, blacklist it in /etc/modprobe.d/blacklist.conf, by adding the following to the end of the file :-

blacklist i2c_piix4

3. Update the initramfs

update-initramfs -u -k all

thanks to finster

add plone to startup /etc/init.d

script that needs to be placed in /etc/init.d/ with permisions to execute chmod +x

chkconfig –add plone
chkconfig plone on

its chkconfig compliant

#!/bin/sh
 #chkconfig: 2345 95 20
 # description: script for plone making a service, not official solution.
 # processname: plone
start () {
 echo -e "Starting plone..."
# start daemon
 sudo -u plone /usr/local/Plone/zinstance/bin/plonectl start
 RETVAL=$?
 if [ $RETVAL = 0 ]
 then
 echo "done."
 else
 echo "failed. See error code for more information."
 fi
 return $RETVAL
 }
 stop () {
 # stop daemon
 echo -e "Stopping plone...\n"
sudo -u plone /usr/local/Plone/zinstance/bin/plonectl stop
 RETVAL=$?
if [ $RETVAL = 0 ]
 then
 echo "done."
 else
 echo "failed. See error code for more information."
 fi
 return $RETVAL
 }
case "$1" in
 start)
 start
 ;;
 stop)
 stop
 ;;
 *)
 echo $"Usage: plone {start|stop}"
 exit 3
 ;;
 esac
exit $RETVALexit $RETVAL