- Published:
- October 17, 2006 – 3:12 pm
- Author:
- By Dave
SMSSend is a program used to send SMS messages over the network via command line in linux. It is licensed unto the GNU General License. I recently aimed to integrate this into Zabbix remote monitoring software. I had a hell of a time finding the software because its original page, here, has some sort of apache configuration error and does not load. Thankfully, I found the source files needed on a mirror. For the sake of anyone else looking for this file, you can download it locally here: http://systembash.com/source/smssend-3.5.tar.gz http://systembash.com/source/skyutils-2.9.tar.gz You will need to install that particular version of skyutils first, before compiling smssend. Also, since the site is down, you can not grab the versions of the .sms that you need for certain providers. However, I used google cache to grab the one for clickatell and re-formatted the file to look right. Since it was not so obvious how….
Categories: Code Samples,Configurations,Linux,Shell,System Administration
Tagged: apache, api, cellular telephone, GSM, internet connectivity, Linux, remote monitoring software, SMS, SMS system, Steve Herrell
- Published:
- October 17, 2006 – 2:45 pm
- Author:
- By Dave
Network Solutions worldnic.com nameservers both appear down. Pings get through occasionally, this may be an indication that they are being DOSed. I used to think that their DNS hosting services would be stable since they were “the” original registrar. But this is the second time in a few months that they’ve been down for a sustained period. I just switched DNS nameservers so I no longer have to deal with them. Now when the domain comes up for renewal (not this one, by the way) I will use GoDaddy instead. They seem to be really great, and any dns changes (including nameserver changes) propagate really fast.
Categories: System Administration
Tagged: DNS
- Published:
- October 14, 2006 – 12:47 am
- Author:
- By Dave
You know how it goes – you are surfing along when all of a sudden you can’t view web pages and your IM client disconnects. Then you see that the wireless connection has reconnected, and everything works again. Annoying, isn’t it? Windows XP users know this all too well if you use a static Wifi 802.11 connection. You are in range constantly, but occasionally wireless randomly loses the connection. The culprit? Windows Wireless Zero Configuration service. To fix this, disable the service! You only need this service if you will have your PC use different wireless networks (for example, you use a portable laptop). To disable the service, go to Start->Control Panel->Administrative Tools->Services. Scroll down to Wireless Zero Configuration, right click and Properties. Press STOP, then go to Startup Type and change to Manual, then Apply. Click OK and you are done, WZC will no longer start up at boot….
Categories: Configurations,System Administration,Windows
Tagged: use different wireless networks, wireless connection, Wireless Zero Configuration, Wireless Zero Configuration service
- Published:
- October 12, 2006 – 3:27 pm
- Author:
- By Dave
I’ve had my Zabbix install set up to notify me if the remote server has a high ping using this expression: 1{__Remote_Hosts:icmppingsec.avg(30)}>120 The problem is, if your network is congested, it can really hit often. I recommend moving the failed ping average up to 500, and adding another trigger: 1{__Remote_Hosts:icmpping.max(120)}<1 This checks for no ping within 120 seconds (or 2 minutes) so it gives you a better idea if the host is “down” or just seeing a high ping latency.
Categories: Configurations,System Administration
Tagged: remote server
- Published:
- October 4, 2006 – 8:15 am
- Author:
- By Dave
Everyone knows that DNS servers use UDP port 53 for queries, right? Well something that I recently learned was that DNS servers also use TCP port 53 to do zone transfers (axfrs). Make sure to open that port up in your firewall if you are allowing zone transfers from your DNS server. Knowing that sooner could have saved me a lot of time! So for future reference: Incoming open ports: 12TCP/53 UDP/53 Outgoing open ports: 1234TCP/53 UDP/53 TCP/1024-65535 UDP/1024-65535
Categories: Configurations,Security,System Administration
Tagged: DNS, firewall, udp
- Published:
- October 4, 2006 – 12:49 am
- Author:
- By Dave
I’ve recently been testing/installing PowerDNS for a web hosting provider. Man am I impressed. You have a number of options to choose for a backend to PowerDNS, my choice is the mysql (gmysql) backend. The DNS server basically relies on a MySQL server to store all of the data. Why is this so great you ask? You can then replicate this SQL data to a number of other DNS servers, across the datacenter or across the country. The one feature I had a hard time implementing was the “supermaster” or “superslave” feature. This allows another server to be the “supermaster” server, thus allowing zone transfers (axfr) from this other server. I had to dig for this info so I hope someone else finds it helpful. You need to add an entry into the “supermasters” table (this goes for the mysql and pgsql backends): 1insert into supermasters ("10.0.0.11","ns1.yourserver.com","internal"); From then on,….
Categories: Configurations,Linux,Shell,System Administration
Tagged: DNS, GUI
- Published:
- October 3, 2006 – 10:10 am
- Author:
- By Dave
Clean Archives Plugin by Shawn Grimes is a great, simple plugin to do your archives with. It has an easy to modify template so you can really make it look at easy as you want. It works well on my WordPress 2 installation and can be viewed here.
Categories: Site Updates
Tagged: Shawn Grimes, Wordpress 2 installation
