Work

HOWTO: Repair a broken Ext4 Superblock

This has happened to me a few times, and it’s not a nice problem to find yourself in. You computer won’t boot, all your filesystem checks tell you you’ve a bad superblock, but you cant seem to find how to…

Oracle AWS report

oracle@xxxx01a:/oracle/app/product/11g/db/rdbms/admin> sqlplus / as sysdba SQL*Plus: Release 11.1.0.7.0 – Production on Thu Sep 5 14:36:04 2013 Copyright (c) 1982, 2008, Oracle.  All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 – 64bit Production With the Partitioning, Oracle…

How to rescue the file you opened, saved and is now gone?

  Luckily, there’s a way to rescue these files, especially if only a short time passed since you’ve opened and closed them.  Here are the instructions for Windows 7 or Windows Vista users, English version. <disclaimer>  Please be careful and…

Hyperic HQ installation

Create user hyperic with home directory [root@drash ~]# useradd hyperic -m -b /home/ -p password Execute hyperic installer script [jandra@drash ~]$ Unpacking JRE to temporary directory /tmp/jre Please ignore references to missing tools.jar Unable to locate tools.jar. Expected to…

VMware installation on Fedora 20

Download vmware vsphere distro https://my.vmware.com/web/vmware/evalcenter?p=free-esxi5&lp=default Source: Untart iso image and execute vmware-install.pl [root@drash vmware-tools-distrib]# ll total 472 drwxr-xr-x. 2 jandra jandra 4096 Aug 17 19:51 bin drwxr-xr-x. 2 jandra jandra 4096 Aug 17 19:51 doc drwxr-xr-x. 5 jandra jandra…

11 Top Server Management & Monitoring Software

IT pros the world over wouldn’t be caught dead without server management software because it takes so much of the manual burden off managing servers and other critical applications. Server management is required to to enhance the up-time of…

101 Free Admin Tools

We know administrators love tools that make life easier – especially when they’re free! So here are 101 of them! Any free tools you know of that are missing from this list? Leave us a comment! We know administrators love…

Fedora daemon startup

In more recent Fedora releases, there is a new way to auto-start a service: systemctl enable snmpd You can read more about it at

MySQL troubleshooting

[root@drash motion]# mysqladmin -u root -p statusEnter password: Uptime: 4932  Threads: 1  Questions: 779  Slow queries: 0  Opens: 65  Flush tables: 2  Open tables: 84  Queries per second avg: 0.157[root@drash motion]# mysqladmin -u root -p debugEnter password: [root@drash motion]# mysqladmin…

Cron: /dev/null 2>&1 and >/dev/null

When using crontab in Linux or Unix to schedule cron jobs, the cron daemon will automatically send the output of the each and every cron job to root or email address set by MAILTO variable on the cron job. The…