Linux

Linux Mint 19.1 Beta Released and it is Incredible

If you use or keep up with all things Linux you’re no doubt aware that the Linux Mint 19.1 “Tessa” beta dropped last week. Linux Mint 19.1 is a long term support release which will be supported until 2023. It comes with updated software and brings refinements and many new features to make your desktop even more comfortable to use.

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Change Linux Primary IP Address Without Losing Connectivity

You need to change an IP address of an interface on a Linux server without loosing connectivity, so here’s one way: First add a secondary IP address to the interface: ip addr add 192.168.1.10/24 dev eth0 ip addr show eth0 And confirm: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP link/ether 44:38:39:00:11:aa brd ff:ff:ff:ff:ff:ff inet 192.168.1.5/24 scope global eth0 inet 192.168.1.10/24

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MySQL Buffered warning: Changed limits: max_connections: 214 (requested 800)

This is always an interesting one, comes up from time to time especially if you run a server with heavy database traffic. Possibly you’ve modified you my.cnf with various tweaked settings for ‘max_connections’ or ‘open_files_limit’ but your your ‘mysqld.log’ you start getting: [Warning] Buffered warning: Changed limits: max_open_files: 1024 (requested 5000) [Warning] Buffered warning: Changed limits: max_connections: 214 (requested 800)

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Ubiquiti ER-X EdgeRouter Increase Performance Tweak

If your like most home/office network tweakers looking for every bit of performance you can squeeze out of your home network. For $49 the small, yet powerful Ubiquiti ER-X is a great value offering gigabit ports, PoE, small form factor and VPN functionality. As with any router the manufacturers release software updates periodically that offer fixes, security patches and added

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Cisco ASA 5508-X FirePower Threat Defense Appliance Reimage

Recently I was given a Cisco ASA 5508-X Firepower Threat Defense appliance to deploy. While these are the same hardware platform as the tried-true Cisco ASA 5508 firewalls, these run Cisco’s new ‘unified’ SourceFire linux based operating system (asa-ftd), which is essentially an operating system combining the SourceFire FirePower functionality with Cisco’s conventional firewalling capabilities. It’s Cisco’s new direction for

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