Ben Chuanlong Du's Blog

It is never too late to learn.

Tips on Kerberos

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Installation

Ubuntu

apt-get install krb5-user

CentOS

yum install -y ntp yum install krb5-workstation krb5-libs krb5-auth-dialog

Issues

kinit: Permission denied while initializing Kerberos 5 library

It is likely due to the fact …

Hard Link, Symbolic Link and Bind Mount

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

https://unix.stackexchange.com/questions/198590/what-is-a-bind-mount

Change Modified Time of Files

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

  1. Change the modifiled timestamp of a file to the specified timestamp.

    touch -m -t 201512180130.09 some_file
    
  2. Change the modified timestamp of a file to the current time.

    touch -m some_file …

Configure Proxy for Apt

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Add the following lines into the file /etc/apt/apt.conf, where proxy_server is the address/ip of the server and port is the port of the proxy service.

Acquire::http …

Shortcuts for KDE

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

  1. KDE supports the Win/Super key to bring up the application launcher now. If you are on an older KDE distributions which does not have it by default, you can get …