Posted in Uncategorized on Mar 24th, 2010
At a last minute urging I went to the Austin “get-Google-to-lay-FTTH” Big Gig party last night. I got to catch up with some of my colleagues from my last job, and met several new people, including (surprisingly) a group of attractive, chatty young ladies who were there as part of the co-“tweetup”. A good time […]
Posted in Uncategorized on Mar 18th, 2010
Since we’re being dragged kicking and screaming into the great scam that is “cloud computing”, I decided to go try it out sight unseen. I’ve wanted a VPS in Singapore with IPv6 for a while, and somebody pointed out that Voxel has a dual-stack cloud offering in Singapore. I punched in my info, hit order, […]
Posted in Uncategorized on Dec 28th, 2009
When you want to encourage search engines to index your site, don’t forget the robots.txt you wrote in 2002 that says Disallow: /. It kinda doesn’t help. Both Google and Bing have some interesting tools to help manage your search listings. Both will tell you the last time you were crawled, errors found, and other […]
Posted in Uncategorized on Dec 18th, 2009
It turns out my problems with IPv6-only Net-SNMP wasn’t a problem with snmpd, it was a problem with selinux. After starting with -Dread_config -c /etc/snmp/snmpd.conf it became apparent: snmpd[9026]: registered debug token read_config, 1 snmpd[9028]: /etc/snmp/snmpd.conf: Permission denied snmpd[9028]: /etc/snmp/snmpd.conf: Permission denied snmpd[9028]: Warning: no access control information configured. It’s unlikely this agent can serve […]
Posted in Uncategorized on Dec 8th, 2009
I just discovered a horribly annoying problem with the IPv6 firewall in the Airport Extreme. It doesn’t operate as “let these addresses have access to devices on the home network” (the source). It operates as “let the world access X service on this IPv6 address on my home network” (the destination). After beating my head […]
Posted in Uncategorized on Dec 4th, 2009
[root@nicky bin]# /sbin/ifconfig -a eth0 Link encap:Ethernet HWaddr 00:16:3E:69:8E:99 inet6 addr: fe80::216:3eff:fe69:8e99/64 Scope:Link inet6 addr: 2a01:348:0:6:5d59:506a:0:1/64 Scope:Global UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 I turned off IPv4 completely on nicky and suddenly realized a few things: NTP: There’s no v6 NTP servers in the rhel.pool.ntp.org pools. Wound up using Sixxs.net’s pool. CentOS repositories: There’s not […]
Posted in Uncategorized on Nov 25th, 2009
Being the annoying IPv6 evangelist I am at work (I turned up our first dual-stack and v6 load balanced “hello world” webserver last week), I wanted more viewpoints of native IPv6 connectivity to play with. Turns out there’s only three or four peeps that sell virtual private server (VPS) with native IPv6 connectivity in the […]
Posted in Uncategorized on Aug 9th, 2009
I realized Airport Extreme isn’t as expensive as I thought it once was, so bought one today. I wanted a dual-stack router that was smaller and quieter than the Cisco 2620 under my desk in the bedroom. While the bedroom is certainly quieter now, the AE is pretty annoying to configure. The actual setup is […]
Posted in Uncategorized on May 18th, 2009
For lovers of storing IP addresses as integers in MySQL tables, there’s a snag when doing this for IPv6 addresses. A 128-bit number is too big to stuff into a BIGINT type. All Fs integer equivalent is 340,282,366,920,938,463,463,374,607,431,768,211,455. An unsigned BIGINT tops out at 18,446,744,073,709,551,615. These are your options: Store it as a VARCHAR(39) in […]
Posted in Uncategorized on May 16th, 2009
So here’s a traceroute to the anycast 6to4 address from my parents’ place. It winds up in Frankfurt, Germany! Their upstream, MBO is multihomed to Level3 and Sprint. I assume they’re defaulting to Level3, since the path to the Sprint 6to4 is 120 ms. traceroute to 192.88.99.1 (192.88.99.1), 64 hops max, 40 byte packets 1 […]
