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March 2, 2022 – 2:00 pm

Books have been written on the subject of awk and sed. Here’s a small sample of commands I put together over the years that are useful for everyday system administration tasks. Most of these tasks …

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Home » Archive by Month

Article Archive for June 2014

Recovering Deleted /bin on CentOS

June 25, 2014 – 1:54 pm
fail

So, as the saying goes, shit happens and the other day I accidentally deleted /boot on a CentOS 6 box. I have NetBackup running on the system, so this would not have been a problem …

Disable Formatting When Pasting into Outlook

June 24, 2014 – 9:25 pm
outlook_001

By default, Outlook will preserve source text formatting during copy/paste operations. At times this can be very annoying, especially when composing emails of technical nature. There’s a good chance your email will end up looking …

Installing GoAccess on CentOS/RHEL

June 24, 2014 – 11:02 am
goaccess_01

GoAccess is a simple but useful “top”-like CLI utility giving you a quick overview of the Apache access_log entries.

What To Do When Windows Ignores SD Card

June 22, 2014 – 11:17 pm
sd_card_001

Here’s a common scenario: you insert or swap and SD card in your laptop and… nothing happens. Sometimes Windows decides to ignore the SD card for reasons unknown (well, the true reason is it’s Windows). …

Permanently Ban IP with Fail2Ban

June 9, 2014 – 12:12 am
video security camera

If you’re not familiar with Fail2Ban: it’s a log analysis tool that detects failed login attempts for your SSH, FTP, etc services and uses IPTools firewall to temporarily drop connection requests from the offending IP addresses. …