Category Archives: Operating System

Linux KVM: Disable virbr0 NAT Interface

The virtual network (virbr0) used for Network address translation (NAT) which allows guests to access to network services. However, NAT slows down things and only recommended for desktop installations. To disable Network address translation (NAT) forwarding type the following commands: Display Current Setup Type the following command: # ifconfig Sample outputs: virbr0 Link encap:Ethernet HWaddr 00:00:00:00:00:00 inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0

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TIBCO Administrator – Error (Core Dump Error)

Sometimes the administrator process in UNIX Platform Stops intermittently and then in the following location, $TIBCO_HOME/administrator/<version>/tomcat/hs_err_pid<pid_of_admin>.log file you will see a core dump error something like this # # A fatal error has been detected by the Java Runtime Environment: # # SIGSEGV (0xb) at pc=0x00007efcdb723df8, pid=12496, tid=139624169486080 # # JRE version: Java(TM) SE Runtime Environment (8.0_51-b16) (build 1.8.0_51-b16) #

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10 Important “rsync” command – UNIX

Rsync (Remote Sync) is a most commonly used command for copying and synchronizing files and directories remotely as well as locally in Linux/Unix systems. With the help of rsync command you can copy and synchronize your data remotely and locally across directories, across disks and networks, perform data backups and mirroring between two Linux machines. This article explains 10 basic

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