Guys,This error message usually comes when you try to access remote linux desktop using vncviewer. Please check the firewall in the linux server. It's causing this error messages. First stop the firewall and test it once again. Please allow the ports 5801,5901 and 6001 in the iptables or firewall. Then restart the firewall and try to connect to the server. It'll work.Try...
Thursday, 30 December 2010
Install frysk :frysk : It's debugging and monitoring tool of the system.===========yum install -y \ antlr jdom junit gcc-java gcc-c++ \ libglade-java-devel libvte-java-devel \ automake xmlto transfig eclipse-ecj dogtail \ sharutils git audit-libs-devel binutils-devel \ yelp libtool make===========Try...
===========================What is systemtap?Ans : Scripting tool to debug and monitor the whole system processes or any events. How to install it on linux machine ?Ans : yum install kernel-develyum install kernel-debuginfoyum install systemtapTool to do the job :Ans : stapSyntax to use it : -------------probe {handler} Where event is kernel.function, process.statement, timer.ms, begin, end etcand handler can be filtering/control statement and...
Tuesday, 28 December 2010
Guys,I referred the following steps :=======================1. On server-linux(Which will be accessed) : yum install vnc*2. On client-linux(who will access the remote desktop of the server ) : yum install vncviewer Note : You can install the tigerVNC instead of yum. Just download the package and install it on both client and server. Here is the URL :----------http://sourceforge.net/projects/tigervnc/files/----------3. On server : Enter command : vncpasswdnow setup a password to connect it via vnc4. vi /etc/sysconfig/vncserversDo the following (You...
Luci and ricci are two softwares to manage the clustering infrastructure of the high availability services. Luci connects to the agent ie ricci which must have installed on each clustered nodes to deliver the messages. You can install the luci on any machine(may be clustered node or without clustered node). Here are the steps that I followed :==========[root@kmaiti src]# wget ftp://ftp.pbone.net/mirror/ftp.centos.org/5.5/updates/x86_64/RPMS/luci-0.12.2-12.el5.centos.4.x86_64.rpm[root@kmaiti src]# rpm -ivh luci-0.12.2-12.el5.centos.4.x86_64.rpm...
Saturday, 25 December 2010
Guys,You can refer the following steps : Number of nodes : Two (node1 and node2)Clustering software : Heart BeatService to be high available : httpIP : 192.168.1.1 to be configured on node1 192.168.1.2 to be configured on node2 192.168.1.3 for Heart Beat clustering enabled services(http etc)==================1. setup the above two IP on the server and make it sure that uname -n returns node1 or node22. yum install heartbeat make sure that you installed : heartbeatheartbeat-pilsheartbeat-stonith3. configure heartbeat on two node cluster....
Wednesday, 22 December 2010
First install NFS server on the machine.On NFS client machine do the following : 1. yum install autofs2. vi /etc/auto.masterand put like : [root@kmaiti alltestfiles]# cat /etc/auto.master |grep home/home /etc/auto.home --timeout=60[root@kmaiti alltestfiles]#3. Put following in /etc/auto.home :* -fstype=nfs,rw,nosuid,soft,fsid=0 IPof_nfs_server:/home/&4. /etc/init.d/autofs startThat's it.PS: You need to restart the system to view the mounted partitions. df -THTry...
Tuesday, 21 December 2010
Guys,I referred the following steps :NFS server configure for NFSv4 :How NFS Works?NFS consists of at least two main parts: a server and one or more clients. The client remotely accesses the data that is stored on the server machine. In order for this to function properly a few processes have to be configured and running.The server has to be running the following daemons:Daemon Description : nfsd The NFS daemon which services requests from the NFS clients.mountd The NFS mount daemon which carries out the requests that nfsd(8) passes on to it.rpcbind...
Monday, 20 December 2010
Guys,Check the directory : /usr/share/xsessions. It has been defined there. You can also execute the following command to get the result.-----[root@kmaiti xsessions]# find /usr/share/xsessions -name "*.desktop" -exec basename "{}" .desktop ";"gnome[root@kmaiti xsessions]# pwd/usr/share/xsessions[root@kmaiti xsessions]#-----Try...
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