392 notes on Linux, tools and troubleshooting
You can check the performance of incoming and outgoing email on Zimbra mail by examining its delivery logs, allowing you to analyze system performance and identify which parts take particularly long…
Some Zimbra Desktop users may be unable to start it after updating Windows. Reinstalling Zimbra Desktop does not resolve this problem. How to fix Zimbra Desktop...
Installing MariaDB 10 on Ubuntu 12.04 LTS using MariaDB's repository. Import the key and install the repository: sudo apt-get install python-software-properties sudo apt-key adv --recv-keys
Heartbleed Bug: OpenSSL Security Flaw leaves secure-protocol services using OpenSSL 1.0.1 vulnerable. Administrators using OpenSSL need to check their systems.
The OpenSSL Heartbleed bug (CVE-2014-0160) lets an attacker send a malformed heartbeat message and obtain data stored in the target machine's memory.
Security researchers discovered Heartbleed (CVE-2014-0160), a bug in OpenSSL 1.0.1 through 1.0.1f and 1.0.2beta that can expose memory contents.
After adding a hotplug-capable HDD to Linux, whether on a VM or physical machine, # fdisk -l may not show it until reboot. Rescanning SCSI can detect it without rebooting.
SQL*PLUS (sqlplus) does not let you press the up or down arrow to browse previous commands. It only lets you inspect one previous command, making repeated commands inconvenient.
Use date with -d in Bash to display yesterday's date or an earlier date.
