Tag Archives: centos

How to chkconfig (OpenKM JBOSS init script)

Posted by cbrunsch on

It needs some steps to integrate OpenKM properly. Therefore, you basically need to engineer your start script yourself. The following notes should help to get JBOSS up quickly.

1) create a new user 

  # useradd jboss
2) copy script

  # cp JBOSS_HOME/bin/jboss_init_redhat.sh /etc/init.d/jboss
3) add chkconfig properties to init file

  # chkconfig: 345 65 35
  # description: JBOSS AS init script
  # pidfile: /var/run/jboss.pid
4) adjust all other variables in the init file header 
5) add script to chkconfig
  # chkconfig --add jboss
6) set jboss to be started at level 3
  # chkconfig jboss --level 3 on
7) start now (# service jboss start)

Configuring alternatives in CentOS (e.g. Oracle Java SE)

Posted by cbrunsch on

The installation of Oracle Java SE (JDK) on some Linux distribution is still a fight. Probably the most staright forward way on Cent OS is downloading and installing the most current  self-exctracting archive (.bin) and installing it to /opt.

Finally, ensure the Oracle Java SE binary ist called instead of the GNU ones.

#alternatives --install /usr/bin/java java /opt/jdk1.6.025/bin/java
#alternatives --config java

There are 2 programs which provide 'java'.

Selection Command
------------------------------------------------
*+ 1 /usr/lib/jvm/jre-1.4.2-gcj/bin/java
2 /opt/jdk1.6.025/bin/java

 

Enter to keep the current selection[+], or type selection number: 2

Backup VE in OpenVZ on CentOS

Posted by cbrunsch on

Unfortunately, the CentOS 5.5 final release and repositories do not support vzdump out of the box. However, some research and hints in other blogs finally led me to a running solutions.

wget http://download.openvz.org/contrib/utils/vzdump/vzdump-1.2-4.noarch.rpm
wget http://dag.wieers.com/rpm/packages/cstream/cstream-2.7.4-3.el4.rf.x8664.rpm
wget http://dag.wieers.com/rpm/packages/perl-LockFile-Simple/perl-LockFile-Simple-0.206-1.el5.rf.noarch.rpm

rpm -i cstream-2.7.4-3.el4.rf.x8664.rpm
rpm -i perl-LockFile-Simple-0.206-1.el5.rf.noarch.rpm
rpm -i vzdump-1.2-4.noarch.rpm

 

export PERL5LIB=/usr/share/perl5/

That’s it.

vzdump --suspend --compress --all --mailto cybr@haite.ch

INFO: Starting Backup of VM 103 (openvz)
INFO: CTID 103 exist mounted running
INFO: status = CTID 103 exist mounted running
INFO: backup mode: suspend
INFO: bandwidth limit: 10240 KB/s
INFO: starting first sync /vz/private/103/ to /vz/dump/vzdump-openvz-103-20100906-211257.tmp
...

Start and Stop Service in CentOS 5

Posted by cbrunsch on

Use the service command to start and stop services in CentOS 5 Linux distributions. Go for the command chkconfig to edit runlevel entries. Chkconfig will also give a list of available system services. 

start the service
service [name] start

stop the service
service [name] stop

display the service status 
service [name] status

display all the available services 
host# chkconfig --list
crond 0:off 1:off 2:on 3:on 4:on 5:on 6:off
dc_client 0:off 1:off 2:off 3:off 4:off 5:off 6:off
dc_server 0:off 1:off 2:off 3:off 4:off 5:off 6:off

automatically run the service on the next startup
chkconfig --level 345 [name] onremove the service from the startup list
chkconfig --level 345 [name] off