Measuring disk usage and identifying processes utilising the most I/O bandwidth on a Debian Linux server. Continue reading
Category Archives: Linux
Measure and Troubleshoot Linux Memory Resource Usage
Tracking down physical memory usage (RAM + swap) and identifying amount of memory needed for current workload on a Debian Linux server. Continue reading
Measure and Troubleshoot Linux CPU Resource Usage
Tracking down CPU usage and identifying heavy processes on a Debian Linux server. Continue reading
Install Oracle’s Instant Client 12.1 and Oracle SQL Plus on Ubuntu 12.04 x64
To begin with, Oracle’s instant client is a free client software for connecting to, well, Oracle databases.
We’re not going to use alien here to convert .rpm packages but will install from zip archives instead.
Tune up Mediawiki v1.21 Installation for a Personal Usage
As the topic implies, we’ll be tuning up a default Mediawiki v1.21 installation for a personal usage.
1.21.5 is the latest stable legacy version of the Mediawiki 1.21.x family and will be discontinued in May 2014. This version should be replaced with a future version of Mediawiki 1.23.x (LTS), which is due to be released in May 2014.
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Create a Systemd Service to Send Automatic Emails When Arch Linux Restarts
Getting around with systemd, we’ll create a service to send emails every time ArchLinux VM restarts. As a bonus, email message will be configured to show a public IP address of the box. Continue reading
Install WiKID Strong Authentication Community Server 3.5.0 on Ubuntu 13.10 Saucy Salamander
In brief, the WiKID Strong Authentication System is a two-factor authentication system, which uses asymmetric encryption instead of the usual shared-secret architecture. Continue reading
Process Text Streams Using Sed on Linux
Yet another stream editor cheatsheet. Continue reading
My Linux Bash Script to Upload Encrypted MySQL Backups to Remote FTPS Server
The script dumps the pre-defined MySQL database, encrypts it with ccrypt and uploads to a remote FTP server via secure TLS connection. Continue reading
Fix “Host key verification failed” Error When Launching Jenkins Slave via SSH
We’re using Jenkins v1.549 with a newly added Linux node. Continue reading