Category Archives: Web Wanderings - Page 16

Domain Registration

For quite some time I’ve been using GoDaddy as my registrar of choice. They usually have domains for $8.95/yr with occasional $7.95/yr sales. Last week a friend recommended that I check out RegisterFly which has slightly higher normal pricing but includes DNS service. He also mentioned that they often have deals and promos listed at their sister site TheFlyPaper which bring down the pricing. As an example they have domains for $7.99 right now or tansfers for $5.50 both of which are a pretty good deal, especially with the DNS hosting included. It may be something to check out if you’re in the market for a registrar.

Tales from the crypt — Hacking back then…

Do you know about Captain Midnight? It seems back in 1986 a satellite relay operator got a little bored one night and played some games with the HBO feed, in part because he was upset they had gone encrypted.

It was at 12:32 a.m. Sunday, April 27, that John R. MacDougall pushed the transmit button on his console and turned into Captain Midnight. “That’s when I hit it,” he says. “It was almost like an out-of-body experience. It was like I was there but I wasn’t really there.”

Read the full story at SignalToNoise.Net

Wasting time

A friend sent me a link to the “Click the Colour (and not the word)” game last week and I must say that once you get going it gets a little addictive.

Testing mailserver DNS records

The other day I needed to check on some DNS mail (MX) records and stumbled across the “Interactive DNS MX-verify” CGI page which checks to see your mailserver is accessible from the internet and taking SMTP connections.

Referers, downtime and caching

As you may have noticed the site has been down for a few weeks now. While it’s an eternity on the internet it flies by in realtime, especially when you’ve got so many other balls in the air. To make a long story shorter…

A few weeks ago I noticed the site was down with a “Forbidden” error. I thought the site might have been cracked so I created a trouble ticket with the host and made sure I had a recent file and database backup. As it turns out the site was disabled due to high CPU usage. Because referrer (or ‘referer’ as the standard spells it) spamming has been a growing problem I assumed the massive hits the site was getting was redlining the CPU and causing the problems. Because I was in the middle of CurrentJam I didn’t have time to deal with it so I setup a temporary page explaining the situation. Finally I got together witha few other people in the b2evolution forums. First, I did some rework on Ed’s referer recheck hack because I needed to do my development on 0.9.12 which was running on my dev server. After I got that working I whipped up the first version of the ReferThis! automatic htaccess generator. With some help we’re now up to build 3. Last night I turned the site back on with the htaccess file in place to limit hits from the bots but CPU usage was still too high for my host to be comfortable with. For the time being I’ve copied the site to another server and will be running it from there until I can bring down the CPU usage.

Thoughts on this are now revolving around some sort of caching system so I can serve semi-static pages to save CPU load. So far I’ve found this 2003 thought by the original b2evolution developer to be of some interest and the WP-Cache-2 project to be another good example of such a system. There’s also this 2002 early thought on the subject. Hopefully some other users will join me and help make this project a reality.

Windows Authentication

I thought I had already posted about this but a quick search of the archives shows I have not. If you’re interested in changing the way Windows users on your network can authenticate but don’t have the resources, time or desire to implement a domain or Active Directory you may want to look at pGina. pGina is an open source project by XPA Systems which also offers pay support for the product.

Using a series of plugins pGina will let Windows users authenticate with a variety of services including, mySQL servers, LDAP directories, PAM, POP3, RADIUS, RSA SecurID, Bluesocket/URI, PAM or even Slashdot. I’ve tried out the software and it works as advertised including the ability to do very basic roaming profiles via a FTP server. Very interesting stuff, especially for a small office or large home situation where you have a number of users and wish to have a single point for authentication but don’t want to go through with a full domain or Active Directory installation.

Sipura follows Grandstream with FXO device

In a recent announcement VoIP technology company Sipura (recently acquired by Cisco’s Linksys division) announced the new SPA-3000 with 1 port FXS and 1 port FXO capability. Earlier this year competitor Grandstream made a similar announcement so it looks like we have the beginning of a trend on our hands and one which is bound to be good for the Asterisk SOHO community.

In related news Russell Shaw at ZDNET has a blog entry suggesting this very technology could be what Cisco was after when they announced the Sipura purchase. I know I’m certianly interested to see what Cisco/Linksys does with this technology, especially if they start putting “home PBXs” in the Linksys broadband routers!

I was also interested to find the Asterisk Management Portal which is an open source project developed by a Canadian company and looks to be a much easier way to administrate Asterisk servers.

Scanning Minnesota

First there were the analog systems, then the trunked analog systems, then the metrowide digital system and now the statewide digital system. This is one hack of an administrative nightmare, it’s a good thing we’ve got tons of committees working on this. In any event the following are some useful links for exploring Minnesota’s digital system(s).

Scanfan is always a good palce to start when you’re talking about metro area Minnesota scanning. Unfortunatly their server got hosed early this year and they lost a lot of good stuff, it’s slowly coming back though. They have a lot of the metro municipality/county analog frequencies listed on their site.

One of the members of Scanfan created this nifty database of talkgroups and frequencies for the metro digital system, they’ve also added some analog frequencies. The whole database is searchable and downloadable and it’s a pretty nice project.

If you’re looking for detailed technical information, policies and diagrams of the metro digital system the place to start is at the Metropolitan Radio Board website. They have nice transmitter location diagrams, system explanation and all the other juicy technical details of this engineering marvel.

The newer statewide board, “Allied Radio Matrix for Emergency Response” (ARMER), is picking up where the metro board left off and taking the system statewide. They too have a webpage with some useful information, though not as thorough as the metro board.

Some additional information on the workings of the digital system and more talkgroup IDs can be found at the MN_Metroscan website. Another local scanner/ham enthusiast with a good webpage of digital talkgroups and analog frequencies in the metro area is ECMscanning. RadioReference.com also has a page with some information on the ARMER system.

As for myself, after some debate over GRE (RadioShack) vs. Uniden and mobile vs. handheld I went ahead and purchased the Pro-2096 and the “purple” PC programming cable and plan to purchase the Win96 programming software which is widely regarded as the best.

PHP Mailing List Manager

I’ve got a project that’s going to require a basic mass mailing manager. I was going to code it myself but the PHPList software looks like a good alternative.

*Updated link Oct 2 2016*

Research and Downloading

Two more intersting sites were brought to my attention today. First, the NETI@home project from GeorgiaTech seeks to collect network performance indicators directly from end users. They’ve already completed one data analysis and are preparing to launch a second round and new version of the software in the coming weeks.

Secondly, BlogTorrent is designed to be an easy way to allow web site administrators to share large files with those on their site using the BitTorrent system but with much less fuss than the usual BitTorrent system.