Programming 2016
Programming 2016 GWT and GWT on Mobile and Java servlets Generate Excel http://www.gwtproject.org/overview.html ...
Post tagged: linux
Deploying Kerberos based SSO
This article goes over how to implement Single-Sign-On on Linux. It goes over the integration around the Kerberos service and the applications, like for example FireFox. Pre-requisites ...
Kerberos Client
This simple mini how-to goes over the configuration of a linux system so it can use a Kerberos Realm server for authentication. Make sure you have the pam_krb5 rpm files installed. You can check this by running the rpm -qa | grep pam command and seeing whether the pam_krb5 rpm files are listed. If they aren't, you can typically download them in an update of the Linux or Unix operating system that you are running. ...
HP Envy 4504 Set-up
I bought a HP Envy 4504. Overall I am happy with it. This is how I configure it so I can use with Linux. This mini howto applies to ArchLinux, void linux and Centos/RedHat distributions. Installation Archlinux: cups, hplip, python2, sane ...
dev notes 2014
Replacment for Make and Autoconf: MakeMe (If you don't have root but have Android 4+ you can use the command-line program adb from the Android SDK platform tools to make backups via a desktop computer) chromebook ides ...
Resizing a Linux RAID
It is possible to migrate the whole array to larger drives (e.g. 250 GB to 1 TB) by replacing one by one. In the end the number of devices will be the same, the data will remain intact, and you will have more space available to you. Extending an existing RAID array In order to increase the usable size of the array, you must increase ...
Wi-Fi Sd Cards
My latest weekend project. Making a normal digital camera WIFI enabled. With the Transcend Wi-Fi SD Card you can convert any digital camera into a Wi-Fi enable camera. What I did here is to set it up so that it would automatically upload photos whenever I turn the camera on while at home. The nice thing about this camera is that it runs a fully functional Linux environment within the card. The manufacturer was also nice enough to give you the opportunity to customize the card by running arbitrary shell scripts from the SD card itself. My code is in github. ...
Raspberry Pi Weekend project
So finally took the time to try out a Raspberry Pi. For this weekend project wanted to do something relatively simple. Essentially, I wanted to recreate/enhance the functionality of a TL-WR702N. The TL-WR702N Nano Router is a neat device but being closed, can not be customized to what I wanted. It can be used in the following modes: ...
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. ...
Off site backup options
This is my working notes on doing off-site backups to the cloud. Still trying to figure out where to keep Offsite backups. These are the candidates: ...
Mini-Howto: Setup proxy on Ubuntu
A quick and dirty mini-howto to setup a proxy on Ubuntu. This is meant mostly for doing quick setup of a proxy on a cloud environment. Install Squid with the following command at the Linux command prompt: ...
atratus project
The other day I came across this project. Looks an interesting idea. It is a project that lets you run unmodified Linux binaries on Windows. It is more similar to WINE than to for example coLinux. While I conceptually I understand how it would work at a low level, I am curious how it works with dynamically link executables. This is something I would like to test out when I have time. ...
Diskless Archlinux
I am still to test this recipe Server Configuration First of all, we must install the following components: A DHCP server to assign IP addresses to our diskless nodes. A TFTP server to transfer the boot image (a requirement of all PXE option roms). ...
ArchLinux tips
A bunch of recipes useful for an ArchLinux system environment. Mostly around system administration. Custom Repos and Packages In the repo directory, put all the packages in there. repo-add ./custom.db.tar.gz ./* ...
Linux Keyboard Tips
Miscellaneous hacks to use the keyboard under Linux. Special Characters on X11 The compose key, when pressed in sequence with other keys, produces a Unicode character. E.g., in most configurations pressing Compose e ``` produces é. Compose keys appeared on some computer keyboards decades ago, especially those produced by Sun Microsystems. However, ...
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