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Tony Maro
Freeradius EAP CRL Generation

Freeradius EAP CRL Generation

Once you're issuing certificates for Freeradius authentication, you need to maintain a list of those certificates that are no longer valid. Here's how.

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Posted by Tony on Apr 05, 2016 | Servers, Freeradius, Network Security
Detecting And Stopping Cryptolocker Type Viruses

Detecting And Stopping Cryptolocker Type Viruses

Cryptolocker type viruses can encrypt everything on your network shares. Here's how to detect a zero-day infection that gets past your antivirus and onto your Samba shares.

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Posted by Tony on Mar 14, 2016 | Linux Tricks, Servers, Virus, Network Security
Whitelisting IP Address Ranges with iptables and ipset

Whitelisting IP Address Ranges with iptables and ipset

If you run a firewall you know how important it is to block out the bad guys. Here's how to only allow parts of the world to even talk to you.

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Posted by Tony on Feb 25, 2016 | Servers, Network Security, networking
Configuring OpenLDAP replication with OLCSyncrepl

Configuring OpenLDAP replication with OLCSyncrepl

Having just one OpenLDAP server is asking for trouble. Running more than one with replication will save you hours of trouble if one of the servers dies for any reason.

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Posted by Tony on Feb 22, 2016 | Servers, OpenLDAP, linux
Using a RADIUS 3.X Server on Ubuntu 14.04 for WIFI Authentication

Using a RADIUS 3.X Server on Ubuntu 14.04 for WIFI Authentication

WPA2 Enterprise is the much more secure wifi authentication method. There's no hackers cracking login passwords if you do this, but there are a few downsides. Here's how to implement it for a small environment using FreeRadius 3.x

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Posted by Tony on Feb 16, 2016 | Servers, Network Security, Freeradius
Saving Power on Your Custom Home NAS

Saving Power on Your Custom Home NAS

Spin down those hard drives! Here's a simple way to configure that on your home custom Linux NAS server.

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Posted by Tony on Feb 15, 2016 | Linux Tricks, Servers
Monitoring a Galera Cluster WSREP Status

Monitoring a Galera Cluster WSREP Status

Nagios can easily monitor your Galera cluster status with a simple nrpe configuration.

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Posted by Tony on Feb 08, 2016 | Servers, Linux Tricks
Don't Drop Things

Don't Drop Things

Impacts to NAS servers are a bad thing, or why I love ZFS.

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Posted by Tony on Feb 06, 2016 | ZFS, Servers
Mysqldump Error Number 28

Mysqldump Error Number 28

Here's what to check for if you get this error...

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Posted by Tony on Jul 07, 2015 | Linux Tricks, Servers
Chrome Hates Your SSL Certificate Security

Chrome Hates Your SSL Certificate Security

Chrome has updated security and doesn't like any SSL certificate that uses SHA-1 as it's signing algorithm. That's good. Here's a quick fix for you.

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Posted by Tony on Jun 24, 2015 | Network Security, Servers
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I am a CIO / CSO with a passion for Linux. I'm much more hands-on than most executives (when I have the time) and this site is my notebook of problems and solutions I've found over the years. Check out my CV Online

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