Latest posts
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Mikrotik Video Tutorial – Creating an IPSEC LAN to LAN Tunnel
So you have multiple sites that all have internet connections. You want to securely connect the internal subnets together…how would one accomplish this? You would use an IPSEC tunnel. Imagine it as a nice secure pipe that connects one site to the other. This tutorial will show you just how this configuration is accomplished. Use…
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Cisco 642-444 Call Manager 4.X -> Passed 😉
I snagged the callman test today. I wasn’t terribly worried, because I studied pretty thoroughly, but…I always get nervous. I find that if I chew gum during the test, it helps a LOT. I usually like to take the test first thing in the morning, that way I’m not thinking about it all day…hehe. I…
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Cheap High Density Layer 2 Aggregation
Lets say we have a company that has several locations. They are about to all move into a new building, the majority of these users will be in a cube farm. All of the users will be within 280′ of your IDF. Each user is getting two ports, and you want them both to be…
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Cacti Video Tutorial – Backups
CactiEZ by default runs a backup script nightly. It dumps these files into a folder. All we have to do is configure our CactiEZ box to send those files elsewhere. Backup location is /var/www/backup. The backup script itself is /var/www/backup.sh. I modify the backup script as below: #/bin/bash cd /var/www/ # Remove old backups find…
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Hmmm…what happened to the last 4 months?
I had a server crash, so I’ll be putting everything back in over the next week or so. I wouldn’t expect any new content for a while…hehe. I’m thinking everything is going to be out of order, but it should all get back in there…well, the interesting bits anyway 😉
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BGP Route Servers – Insight Into Your Subnets
When you have multiple internet providers, how do you really know what’s going on with your subnets? There are looking glasses (web based interfaces), which give you insight into a providers BGP tables. You can also get BGP info via route servers. These are generally routers that you can telnet into and issue show ip…
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Geist Environmental Monitoring
So I got in some monitoring gear from Geist a little while back. Got in the RSMINI163. This is a 1U rack mount guy. He has 16 ports for 16 probes. He also has 3 analog inputs for dry contact connections. This guy has a built-in temp sensor to boot. We also got one of…