I begin to use vim for programming. I like the tools that focus on one function. I used to use emacs. But I think I like vim more. For debugging, I use gdb. But I use the front end cgdb. I can see the codes with the cursor when debugging. I can use F8 for…
If you want to have a wordpress blog for FREE co.cc + x10hosting is the best choice. I will introduce both in this post. I will briefly introduce how to set up a wordpress blog like my blog. The overall that I paid for this blog is only $0.89. I can say that it is…
With Emacs, I feel happy. I love the rich functions of Emacs, such as compiling, quickly jumping to the lines with compilation error and debugging with gdb, and more. I ever wrote small tips posts about Emacs before. But it is a good idea to put them together and keep adding new ones. Here comes…
QT and GTK applications use different settings for cursor styles. This makes the mouse cursor styles for QT applications in the GNOME / MATE desktop environment or GTK applications in the KDE desktop environment look different with other programs. In the post [[configuring-mouse-cursor-style-for-gtk-applications-in-kde-desktop]], we talked about how to configure the mouse cursor style for GTK…
An introduction to the general method of installing Domain-U on Xen is introduced here: Setting Up Stable Xen DomU with Fedora: Unmodified Fedora 12 on top of Xenified Fedora 12 Dom0 with Xen (this is a general introduction, some details are changed, such as ‘xl’ replacing ‘xm’, LVM backing the disk for higher performance. But…
I ever discussed Starting KDE from Command Line by startx for KDE and GNOME. Recently, I installed MATE desktop on Fedora 17 and am very happy with it—dear, Gnome 2 is back. However, I checked the /etc/X11/xinit/Xclients script which is called by ‘startx’ and it only includes ‘startkde’ and ‘gnome-session’ without support to MATE. But…
I experienced very slow WiFi network on Linux, while my iPhone seems surf the Internet quit fast. I pinged a site and the RTT is more than 1000ms! There must be something wrong with my Linux configuration. I tried to change the MTU from “Automatic” to “1400” on my Linux box. Surprisingly, it fix the…
The new development of Xen and Linux kernel make it easy to install Xen on Fedora as the Domain-0 now. This post uses Fedora 17 as an example platform to introduce how to set up Domain-0 on Fedora Linux. Compared to our old method (https://www.systutorials.com/setting-up-stable-xen-dom0-with-fedora-xen-3-4-3-with-xenified-linux-kernel-2-6-32-13-in-fedora-12/) which requires manually compiled Xen and patched kernel, the current…
Linux booting is usually controlled by Grub or the new Grub2. Setting the default booting entry is a frequent operations. Here, we introduce how to set the default entry in Grub2 and Grub. Setting the default booting entry in grub2 Note1: With some version of grub2, the grub2-set-default method and the script below may not…
Vim is my favourite text editor and I also prefer to use Vim to compose Email. I ever used Vim as Thunderbird’s External editor with the help of plugin. I started to use KMail as my email client on KDE and I find it is not hard to configure KMail to use Vim as email…
We usually have video files in .wmv .mpg .rmvb or .mkv formats. The iPod, iPhone or iPad only accept a limited number of video file types, such as .mov and .mp4. To play these video files in .wmv .mpg or .rmvb format, we should first convert them to .mov or .mp4 files that can played…
ns is a discrete-event network simulator targeted primarily for research and educational use. There are two version of ns, ns-2 and ns-3, which are quite different with each other in the implementation and method to use them. In this post, we introduce how to install ns-2 and ns-3 on Fedora Linux 15. Install ns-2.34 on…
NFS is widely deployed and used even after more than twenty year. NFS is easy to set up and easy to use. This introduces how to set up the NFS server and clients. We use the Fedora system as the example. The tutorial here is for RHEL/CentOS/Fedora and derived Linux OSes. Set up an NFS…
The latest tools for upgrading Fedora is FedUp, please check How to upgrade Fedora 19 to Fedora 20 through the network. Please consider PreUpgrade for upgrading Fedora. This is the recommended method. This post makes a list of actions should be done to upgrade Fedora using yum. Please note that this is for experienced users…
Vim is an excellent editor which I use every day. Thunderbird is a nice email application. However, Thunderbird’s integrated editor is not efficient enough to a Vim user. Why not use Vim as Thunderbird’s editor? In this tutorial, we will introduce how to integrate Vim with Thunderbird together in Linux. Install the “External Editor” Thunderbird…
Setting up Ubuntu 10.10 DomU on top of Fedora Xen Dom0 is introduced in this post. The process of setting up Ubuntu 10.10 DomU is the same as Setting Up Stable Xen DomU with Fedora: Unmodified Fedora 12 on top of Xenified Fedora 12 Dom0 with Xen 4.0 This post only show the difference which…
This is a introduction to *nix’s process management tools: pkill and pgrep. As this site’s domain name was pkill.info, a introduction to pkill should exist here. NAME pgrep, pkill – look up or signal processes based on name and other attributes SYNOPSIS pgrep [-flvx] [-d delimiter] [-n|-o] [-P ppid,…] [-g pgrp,…] [-s sid,…] [-u euid,…]…
Fedora’s font rendering isn’t very nice. At least on my laptop with Fedora 12. Bytecode Interpreter (BCI for short) is disabled by default because of patent issues. As the TrueType bytecode patents have expired. We may enable BCI in Fedora now. TrueType announced that BCI is enabled by default from 2.4. Fedora 12’s TrueType version…
LVM’s snapshot feature enables us to duplicate an LVM backed Xen DomU in seconds rather than minutes. We no longer need to copy the entire file system image like backing up file backed Xen DomU. We just need to make a snapshot of the current Xen DomU in seconds. When there are changes to the…
The Xen hypervisor is a powerful virtualization solution that provides virtualization capabilities for x86, x86-64, and ARM architectures. The source code structure of Xen is organized into several directories, each of which contains a specific set of files. The backend and frontend drivers are an important part of the Xen hypervisor, and they provide a…