am a new Linux server user. I need to tunnel X over ssh
. I type the following command on a CentOS/RHEL based remote host to get display on a local desktop:
ssh -X firstname.lastname@example.org
But, I am getting an error that read as follows:
**error**: Failed to contact configuration server; some possible causes are that you need to enable TCP/IP networking for ORBit, or you have stale NFS locks due to a system crash. See http://projects.gnome.org/gconf/ for information. (Details – 1: Failed to get connection to session: /bin/dbus-launch terminated abnormally without any error message)
How do I fix this error on a newly formatted/installed RHEL or CentOS Linux 6.x server?
recently read that SSH keys provide a secure way of logging into a Linux and Unix-based server. How do I set up SSH keys on a Linux or Unix based systems? In SSH for Linux/Unix, how do I set up public key authentication?
know how to install nginx on a CentOS Linux using yum command
. Is there is a guide to install Lighttpd web-server on a CentOS Linux or RHEL server with yum command
? How can I install and configure php and mysql on a CentOS with Lighttpd web-server?
ow do I install JDK runtime environment on a CentOS Linux version 6.x using yum command
am using a CentOS Linux v6.5 on my home server and I am getting the following error when I execute yum command
rpmdb: PANIC: fatal region error detected; run recovery
error: db3 error(-30974) from dbenv->open: DB_RUNRECOVERY: Fatal error, run database recovery
error: cannot open Packages index using db3 – (-30974)
error: cannot open Packages database in /var/lib/rpm
Error: rpmdb open failed
How do I fix this problem on a CentOS / RHEL based system?
am using NFS server version 4.x on a CentOS/RHEL based system. I’m mounting my shared /var/www/ directory on five Apache based nodes using the following syntax:
mount -t nfs4 -o rw,intr,hard,proto=tcp rocknas02:/httproot/www /var/www/
I noticed that due to bug in my app user can sometime upload executable or other device files to get out of chrooted Apache server. How can I prevent such security issues on a CentOS or RHEL based NFS client and sever setup?
am a new RHEL / Centos Linux server admin. I would like yum to update all packages except the Linux Kernel. How can I prevent yum command
from updating kernel on a CentOS/RHEL/Fedora Linux based systems?