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Posts in 2014

  • IP Quail

    Sunday, January 19, 2014 in Programming

    I’ve long been a fan of IP Chicken, however it isn’t anycasted, and it doesn’t support IPv6. I’ve had a non-anycasted IPv4/IPv6 capable version called ipfowl which I run at http://ip.henchman21.net/ Enter my new creation: IP …

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  • UPS SNMP Management

    Monday, January 13, 2014 in Monitoring

    Having put an IP address on the management card of a APC Symmetra RM 12000 recently, I set out to setting up Nagios to monitor it today. I found a plugin called check_apc.pl which seemed to work fairly well. It was also quite nicely supported in …

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  • SSL Ciphers

    Sunday, January 12, 2014 in Systems

    This page is outdated. Please use the Mozilla SSL Configuration Generator to generate a secure configuration. The SSL/TLS Protocol versions, and Ciphers have never really been an item which people configured very tightly. Lately though, there are …

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  • First Brocade CLI Experiences

    Thursday, January 09, 2014 in Networking

    I used Brocade equipment for the first time this week. Coming from primarily Cisco environments, but also having a little experience with HP Procurve (CLI and web-managed switches) and Dell web-managed switches, I was a little lost, but eventually …

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  • RFC2142: Role Email Accounts

    Saturday, January 04, 2014 in Systems

    One of the responsibilities of a ISP is to have various working role email accounts. Both end users, and other network operators expect action on emails sent to accounts like abuse@, support@ or postmaster@. Luckily there is a standard which defines …

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  • Enjoying HTML5 over the Holidays

    Thursday, January 02, 2014 in Programming

    On a non-networking related note. I have been doing a little bit of web design, dabbling in HTML5. It has been quite enjoyable. I have launched a new website for my wife’s photography business, meaganlee.com, and have also redesigned …

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  • 2014: IPv6 and HTML5

    Thursday, January 02, 2014 in IPv6

    I’ve switched to using a new site/blog engine, Octopress. It uses markdown, which is my new favourite way of writing things. It lets you focus on writing text, and uses simple wiki-like formatting. It also allows you to intersperse HTML where …

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Posts in 2013

  • RFC3021: 31-Bit Prefixes on PtP Links

    Tuesday, October 22, 2013 in Networking

    Unless you’ve had your head stuck in the sand for the last few years, you’ve no doubt heard of IPv4 exhaustion by now. This doesn’t have anything to do with the packets being too tired to continue, but the depletion of available …

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  • I'm doing AnyCast!

    Saturday, October 05, 2013 in Networking

    I am now doing AnyCast with IPv4/IPv6 on henchman21.net. I have a lo1 interface with 206.220.196.21/32 and 2604:4280:6865:6e63:686d:616e:3231:21/128 bound to it, running on 2 virtual machines, one at home, one @ 167 Lombard. I am then running …

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  • Highly-Available, Redundant Internet Through BGP

    Monday, September 23, 2013 in BGP

    The Issue There are several methods to utilize multiple internet connections and fail over in the event of a failure. This blog post will deal most specifically with BGP after laying out the basic methods. Manual switch over. Pros Does not cost …

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