Post tagged: network

Alpine Linux Custom Interface names

This article is a copy of this article and shows how to rename/change name of a network interface. Alpine Linux uses busybox mdev to manage devices in /dev. mdev reads /etc/mdev.conf and according to mdev documentation one can define a command to be executed per device definition. The command which is going to be used to change network interface name is nameif. ...

Nanowiki

NanoWiki is a Wiki implementation based on picowiki. I have been using SimpleNote for a number of years. It works pretty well but somehow I was looking for: Ability to include and render nice asciiart pictures Organizes articles in a folder structure. ...

Ad-Hoc rsync daemons

The other day I needed to copy a bunch of files between to servers in my home network. Because of the volume I wanted to copy the files without having to go through ssh's encryption overhead. So I figured I could use netcat for the data transport. To do that I wrote these short scripts. Remote scripts ...

Z-Wave Associations with With Vera UI

I couldn't find any to the point documentation on how to do this, so I am writing this. The way I understand Z-Wave associations work is that once devices are in the same Z-Wave network, a device can directly send a command to another device without intervention of the Hub or controller. ...

Windows Account Lockouts

To prevent windows lockouts the following can be done: Delete Internet Explorer browsing history Run the following: Open Start --> Search filed--> Type in Run --> rundll32.exe keymgr.dll, KRShowKeyMgr --> Delete ...

using cachefiles on an Linux NFS share

If you often mount and access a remote NFS share on your system, you will probably want to know how to improve NFS file access performance. One possibility is using file caching. In Linux, there is a caching filesystem called FS-Cache which enables file caching for network file systems such as NFS. FS-Cache is built into the Linux kernel 2.6.30 and higher. ...

Windows administration from the command line

Windows system administration is very mouse driven and to reach all tools you need to browse through Windows explorer. If you are like me and prefer to log on a limited privilege account and use Runas to perform admin tasks, you can open these consoles with the .msc file names. Here is a list of admin tools with their .msc file names. domain.msc: AD Domains and Trusts ...

Web Links

Here a few web-links to interesting web apps. It covers stuff about password security and checking if web sites are down, etc etc. Down For Everyone or Just Me: If you're getting an error when visiting a certain site, it could be down or something could be wrong on your end. To see which ...

Using a NAS200 as a Print server

Last weekend I had a small weekend project to move my All-In-One Printer/Scanner from my Xen host server to a spare NAS200 I had lying around. Since the NAS200 has a i486 compatible CPU, and I had been able to run a CentOS 5 distro before, I figure it would make a good server with low power consumption. For that I updated my NASCC firmware so that it would boot a USB key, and update my CentOS image creation script. This worked well, I was able to boot CentOS without that much effort altogether. I myself have an Epson Stylus CX5500 which unfortunately only comes with binary drivers. This was not much of a problem since the NAS200 has a i486 compatible CPU. I find this is relatively unique among different NAS models. Alas, the performance was quite disappointing. I should be used to the NAS200 underperforming. But really, this was truly sad. I did not bother to test the printing, but I did try scanning with it. Running scanimage to scan a single page was taking over 15 minutes before I hit Ctrl+C. It was an idea, but the results were so sub par. The only take-aways of this are: ...

Enable local file caching for NFS share on Linux

In Linux, there is a caching filesystem called FS-Cache which enables file caching for network file systems such as NFS. FS-Cache is built into the Linux kernel 2.6.30 and higher. In order for FS-Cache to operate, it needs cache back-end which provides actual storage for caching. One such cache back-end is cachefiles. Therefore, once you set up cachefiles, it will automatically enable file caching for NFS shares. ...

Yealink W52P

Yealink W52P So I was looking to replace my analog cordless phones mainly because I wanted to have a centralized way to maintain phonebooks. Right now I have two cordless phone that I have to manually enter phonebook entries on the two handsets independently. Initially I was thinking of getting small/cheap Android tablet and load it with a SIP soft phone. Trying with a couple of tablets I had was not very successful. On one hand my network topology did not work very well, on the other hand, the integration of the SIP soft phone with the directory and the other phone functions did not work as well as I expected. So when I came across the W52P, I was initially attracted to the low price. Grandstream had a cheaper phone, but it did not have remote phonebooks. After checking the documentation of the W52P, I confirmed that it did have a remote phonebook functionality. So bought it and tried it out. As a phone itself, it is about the same as the analog phones that it was replacing. The voice quality was pretty good. ...

IPv6 testing

When trying to get on-to the IPv6 Internet, here are a couple of links to do diagnostics: http://www.subnetonline.com/pages/ipv6-network-tools/online-ipv6-ping.php This actually contain generic network tools. http://ds.testmyipv6.com/ Confirm if your browser is connecting through IPv6 ...