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  • Posted on Friday August 19, 2016
    In this post, asp.net development India based professionals will brief you about the interesting feature of AngularJS, that I Routing. You will learn the method to split the single page into multiple views. For more info, read the article. In this article we are going to see one of the most useful feature of AngularJS […] Related posts: Controlling Display of WordPress Widget with PHP Code Speed Up Firefox DNS Lookup Friendly WordPress Navigation Using Page Numbers Instead of Next and Previous Links Use Excerpt in Index, Category, Tag and Arhieve Pages for WordPressContinue Reading »
  • Posted on Tuesday August 16, 2016
    In this post, java development India based experts will explain the concept of Quartz. You will also learn the method of setting up the Quartz in this article. You can ask experts if anything bothers you. Table of Contents [hide] 1 Technology 2 Some of the Features of Quartz 3 Quartz setup 4 Key classes […] Related posts: Java Calling Native Functions in .DLL on Windows Start a Job and Return to the Shell : Run a Backgroud Job Catching the Signal Sent by Kill in C on Linux Generating Mixed Source and Assembly List using GCCContinue Reading »
  • Posted on Sunday August 07, 2016
    People are sometimes given access to Linux/Unix and asked to change their initial passwords. But for beginners, changing a Linux/Unix password is not an easy task, especially when there is only SSH log on allowed to the Linux/Unix server. This post introduces how to change password of user USER on host HOST remotely using SSH. […] Related posts: Changing Linux User’s Password in One Command Line How to Set Up Password-less SSH Login on Linux How to SSH to Linux Hosts for Beginners How to Keep Linux SSH Session Alive from Disconnecting – Server and Client Side FixesContinue Reading »
  • Posted on Saturday May 21, 2016
    Linux may report “device is busy” when we try to umount a filesystem. This behavior is reasonable as it can help us avoid data loss by disallowing unmouting a filesystem when it is being used. But for situations when we are sure there is something wrong happened or we care not data lost such as […] Related posts: Controlling Filesystem Mounting on Linux by Playing with /etc/fstab How to Create ISO Image from DVD Disk on Linux Shrinking an Ext4 File System on LVM in Linux How to Get Available Filesystem Space on Linux: a C Function with a C++ ExampleContinue Reading »
  • Posted on Saturday May 14, 2016
    Attaching a USB keyboard to a laptop is common when using a laptop because a normal keyboard may provide a more convenient typing experience. The laptop keyboard is not used in these situations. However, the laptop keyboard may still be touched by accident. In this post, we will discuss how to disable and enable the […] Related posts: Automatic Keyboard Presser on Linux Git Submodule Cheat Sheet Git through SSH Tunnel as Proxy Disable IPv6 on LinuxContinue Reading »
  • Posted on Saturday May 07, 2016
    Junk Emails, or Email spams, are annoying and they cost time to deal with. While they are something we need to cope with, we can use tools to help us. Thunderbird has an adaptive junk filter that can learn from user’s actions to identify junk messages. I find that Thunderbird default settings are not fully […] Related posts: How to Make Thunderbird Not Wrap Long Lines Automatically Thunderbird Tips: Default Descending Email Sort Order and Inline Quote When Reply Outlook-style Email Reply Header in Thunderbird Minimizes Thunderbird Windows into the System TrayContinue Reading »
  • Posted on Saturday February 13, 2016
    Bash script may need to get its own path. In normal Bash script, $0 is the path to the script. However, when a script is sourced, such as . a.sh, a.sh‘s $0 does not give a.sh while the caller’s name. How to reliably get a bash script’s own path no matter whether the Bash script […] Related posts: Floating Point in Bash Shell PHP Photo Gallery Scripts Requiring No Database Setting Default Entry in Grub2 and Grub Running a Command Upon Files or Directories Changes on LinuxContinue Reading »
  • Posted on Saturday January 30, 2016
    How to set the static IP address for CentOS 7/Fedora 22+ is introduced in this post. Here, we assume the Linux is using NetworkManager to manage the network. All steps are done as root. Find the interface you want to set the address Command ifconfig -a lists all interfaces. Find the interface name to set, […] Related posts: Installing Xen on Fedora 20 as Domain-0 Installing Xen on Fedora as Domain-0 (Fedora 17) Changing Hostname of Fedora Linux Creating Fedora 20 Domain-U on Fedora 20 Domain-0Continue Reading »
  • Posted on Sunday January 03, 2016
    It is common to execute commands on many nodes/hosts via SSH for managing a cluster of Linux servers. On Linux, there are many choices for this task. Generally, to run commands on many nodes, there are two modes: serial mode and parallel mode. In serial mode, the command is executed on the node one by […] Related posts: Git through SSH Tunnel as Proxy Notes for Beginners of Software Development on Linux How to Change Linux Account Password Through SSH: A Beginners’ Tutorial Howto: Git Server over SSHContinue Reading »
  • Posted on Saturday December 12, 2015
    In Firefox on Linux Mint, Google is not in the default list of search engines. Linux Mint has its criteria for adding search engines while Google seems not in those suggested by Linux Mint because “Amongst commercial search engines, only the ones which share with Linux Mint the revenue Linux Mint users generate for them […] Related posts: Use noindex Meta Tag in WordPress to Prevent Search Engine Indexing Categories, Tags and Archives Search Engine Friendly URL for MediaWiki Essential Firefox Add-ons to Make Firefox Better Installing and Configuring 32-bit Firefox on 64-bit Linux (Fedora)Continue Reading »
  • Posted on Sunday November 29, 2015
    Linux is a great platform for software development targeting servers or backends. In general, working on Linux is very productive. The problem that beginners on Linux face is the the learning curve is steep at the beginning. But believe me, after you get through the initial green steep learning step as in the figure below […] Related posts: Three Methods of Executing Commands on Many Nodes in Parallel via SSH on Linux Running a Command Upon Files or Directories Changes on Linux Git through SSH Tunnel as Proxy How to SSH to Linux Hosts for BeginnersContinue Reading »
  • Posted on Sunday November 29, 2015
    Amazon S3 is a widely used public cloud storage system. S3 allows an object/file to be up to 5TB which is enough for most applications. The AWS Management Console provides a Web-based interface for users to upload and manage files in S3 buckets. However, uploading a large files that is 100s of GB is not […] Related posts: Data Consistency Models of Public Cloud Storage Services: Amazon S3, Google Cloud Storage and Windows Azure Storage How to Set the Static IP Address Using CLI in Fedora/CentOS Linux Running a Command Upon Files or Directories Changes on Linux Large-scale Data Storage and Processing System in DatacentersContinue Reading »
  • Posted on Friday November 13, 2015
    After the post A PHP Function for Fetching RSS Feed and Outputing Feed Items as HTML was originally published, there are some updates such as adding a simple RSS feed caching mechanism and supporting scanning content parts of the feed items for images. Recently, Webucator makes a great tutorial video on introducing the RSS to […] Related posts: A PHP Function for Fetching RSS Feed and Outputing Feed Items as HTML PHP Photo Gallery Scripts Requiring No Database How to Get Available Filesystem Space on Linux: a C Function with a C++ Example How to Redirect WordPress Feed to Feedburner Using .htaccessContinue Reading »
  • Posted on Tuesday November 03, 2015
    PowerPoint uses 96 dots per inch (dpi) by default when you export a slide. The DPI of the images like .tif ones exported from PowerPoint are always 96. In the options of PowerPoint, there is a setting for choosing DPIs. However, it have no effect. For some needs like images for printing posters, larger DPIs […] Related posts: How to Print PowerPoint Poster by HP Designjet 500 Plotter Installing MS Office 2007 on Linux using Wine How to Convert JPG Images to EPS Windows 7 MAK ActivationContinue Reading »
  • Posted on Sunday October 18, 2015
    As you may know, Adobe stopped supporting the NPAPI version of Flash on Linux and the latest NPAPI version of Flash player at version 11.2 released back in 2012 will only receive security fixes. Even the security fixes to the 11.2 version of the Flash Plugin your Firefox is using will end on May 4, […] Related posts: Installing the Flash Plugin for 64-bit Firefox in Linux x86-64 Installing and Configuring 32-bit Firefox on 64-bit Linux (Fedora) Installing ns-2 and ns-3 on Fedora Linux Upgrading Fedora to Newer Version with YumContinue Reading »
  • Posted on Sunday September 13, 2015
    SSH is a very common tool for Linux/Unix platforms. One annoying problem when using SSH is that the connection may get disconnected if the SSH connection is idle for some time under common configurations. Users may run an infinite loop like while true; do uptime; sleep 30; done when there is no work to be […] Related posts: Git through SSH Tunnel as Proxy How to Remote Control Linux Server Using VNC through SSH Tunnel SSH Port Forwarding on Linux How to Change Linux Account Password Through SSH: A Beginners’ TutorialContinue Reading »
  • Posted on Saturday September 05, 2015
    It is common practice to calculate the checksums for files to check its integrity. For large files, the checksum computation is slow. Now I am wondering why it is so slow and whether choosing another tool will be better. In this post, I try three common tools md5sum, sha1sum and crc32 to compute checksums on […] Related posts: SSD Enabled For DreamHost Shared Hosting: Simple Performance Measurement What Is the Name of the Linux-based OS: A Survey Making GPT Partition Table and Creating Partitions with parted on Linux Linux Flushing File System CachesContinue Reading »
  • Posted on Sunday August 30, 2015
    Doing actions upon changes of files and directories is very useful. Examples like compiling a project after the source code files are changed, sending emails after important configuration files are modified, building the PDF after a TeX file is modified. On Linux, the inotify-tools provide good support for trigger actions after changes. In this post, […] Related posts: Script: Running Commands on a List of Servers MPlayer Playing DVD Directories / ISO Files / Disks Three Methods of Executing Commands on Many Nodes in Parallel via SSH on Linux Changing Linux User’s Password in One Command LineContinue Reading »
  • Posted on Saturday August 22, 2015
    The hplip packages contains all the tools you need to set up the HP scanner. For scanning, you may use the sane and xsane tools. The tricky part to enable the scanner is carefully choose which driver to use from the hplip package. If you choose a non-suitable driver, only the printer will work and […] Related posts: Configure sMobileNet of HKUST on Linux How to Configure iOS to Use Socks Proxy over SSH with a Linux/Unix Host Git through SSH Tunnel as Proxy Creating Fedora 20 Domain-U on Fedora 20 Domain-0Continue Reading »
  • Posted on Saturday August 15, 2015
    RAID systems such as MegaRAID add signatures to disks to maintain the infomration on these didks. When we simply remove these disks and install them to another server, Linux on the new server may detect these RAID signature infomration and refuses to continue write to the disk. Here is one example that mkfs reports “apparently […] Related posts: How to Find Out Failed Disks’ SATA Ports in Linux Making GPT Partition Table and Creating Partitions with parted on Linux Shrinking an Ext4 File System on LVM in Linux Extending a Mounted Ext4 File System on LVM in LinuxContinue Reading »
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