Tags: System Administration


ss utility
Dumping sockets is not quite as much fun as dumping a load from a backhoe but it has its charms. Learn more in this ss utility tutorial.

Probe Your Linux Sockets With ss

We all know and love netstat (network statistics), because it is a wonderful tool for viewing detailed network connection information. An interesting alternative is ss, socket statistics. ss is part of the iproute2 suite of network tools. ss displays statistics about your network sockets, which...
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Database admin
If you need a single point of entry for every MySQL database you administer, you might want to give MySQL Workbench a try.

How to Install and Use MySQL Workbench As Your Database GUI

If you’re a DBA, chances are you do most of your database administration via the command line. But when you have a number of databases to work with, running on multiple database servers, a GUI would certainly come in handy. Of course, you could always install phpMyAdmin on each server, but then you...
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On-Call at Any Size

Creating and running an on-call rotation is the very first step in building truly reliable infrastructure at any scale, but it’s far from the last. As a company grows and scales, the systems that it builds and runs grow in complexity and require more sophisticated on-call practices. While there is...
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Salaries for Storage, Networking Pros Continue to Rise

While 2016 saw U.S. tech salaries remain essentially flat year-over-year, key skills, especially in the areas of storage and networking, did warrant increases, according to the annual tech salary report from careers site Dice.com. Their recent survey polled 12,907 employed technology professionals...
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DNS Record Will Help Prevent Unauthorized SSL Certificates

In a few months, publicly trusted certificate authorities will have to start honoring a special Domain Name System (DNS) record that allows domain owners to specify who is allowed to issue SSL certificates for their domains. The record allows a domain owner to list the CAs that are allowed to issue...
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Workstation Security
This article in our workstation security series covers essential steps for post-installation hardening.

9 Ways to Harden Your Linux Workstation After Distro Installation

Learn how to work from anywhere and keep your data, identity, and sanity. DOWNLOAD NOW So far in this series, we’ve walked through security considerations for your SysAdmin workstation from choosing the right hardware and Linux distribution, to setting up a secure pre-boot environment and distro...
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A 1986 Bulletin Board System Has Brought the Old Web Back to Life in 2017

Today, many can be forgiven for thinking that the digital communications revolution kicked off during the mid-1990s, when there was simply an explosion of media and consumer interest in the World Wide Web. Just a decade earlier, however, the future was now for the hundreds of thousands of users...
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In this final article in our TFTP series, we take a closer look at usage and moving things around.

Trivial Transfers with TFTP, Part 3: Usage

In previous articles, we introduced TFTP and discussed why you might want to use it, and we looked at various configuration options. Now let’s try and move some files around. You can do this with some comfort now that you know how to secure your server a little better. Testing 1, 2, 3 To test your...
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Things I Learned Managing Site Reliability for Some of the World’s Busiest Gambling Sites

For several years I managed the 3rd line site reliability operation for many of the world’s busiest gambling sites, working for a little-known company that built and ran the core backend online software for several businesses that each at peak could take tens of millions of pounds in revenue per...
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New ONOS Release Helps Automate Network Configuration

The latest update to the ONOS open networking operating system should make it easier to automatically configure devices and services on a network. ONOS Junco, demonstrated at the Linux Foundation's Open Networking Summit on Monday and available now, adds dynamic configuration and new virtualization...
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