ssh automatic login without password not working

Posted on February 20, 2012 - Filed Under Linux | Leave a Comment

If you just setup your ssh rsa key to enable  ssh automatic login without password,but it doesn’t work,normally it’s caused by a wrong group permissio[......]

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fatal: open database /etc/postfix/aliases.db: No such file or directory

Posted on February 20, 2012 - Filed Under Linux | Leave a Comment

Today I found one of my server can’t send mail successfully ,and I try to restart postfix service but get below error from /etc/log/maillog

fatal: op[......]

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Fix copy / paste issue between vnc and windows

Posted on September 13, 2011 - Filed Under Linux | 1 Comment

If you experience copy / paste issues between your vnc and windows,please see below checklist to troubleshoot.

1.Make sure you enable copy / paste[......]

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How to fix backspace/delete mapping issue in vim

Posted on May 28, 2011 - Filed Under Linux | 1 Comment

Several day’s ago,some of my clients switched from Solaris vnc server to Linux vnc server,and I was reported that the backspace did not work in vim.Th[......]

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Modify/change gnome setting/configuration global/system-wide using gconftool-2

Posted on May 28, 2011 - Filed Under Linux | Leave a Comment

I am managing some linux servers,users access these server via VNC.By default ,some users complained that the gnome will lock screen with in 10 minute[......]

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How to remove blank empty lines in unix/linux

Posted on March 10, 2010 - Filed Under Linux | Leave a Comment

I found 6 ways can do it,if you know others ,pls let us know.
Please see below code for detail.

bash-2.05a$ cat test.txt
aaaaaaa
 
bbbbbb
 
ccccc[......]

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How to fix keyboard mapping issue of Gnome / Vnc in ubuntu

Posted on June 18, 2009 - Filed Under Linux | 14 Comments

Yesterday I just intalled an ubuntu 9.04 Server for my co-work.After installed VNC on this server I found the keyboard was messed up while I am connec[......]

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To install graphics drivers on Ubuntu

Posted on April 10, 2009 - Filed Under Linux | 6 Comments

If you do not know whether graphics drivers been installed or not,type following in a terminal window ,and it will tell you

snapshot17

and to find out the[......]

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3D Desktop switch on Ubuntu

Posted on April 10, 2009 - Filed Under Linux | Leave a Comment

First,you need to install “3ddesktop” by typing the following in a terminal window:

snapshot

press enter

then you can type 3ddesk ,press enter to run[......]

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How to use single click instead of double click in Ubuntu

Posted on April 6, 2009 - Filed Under Linux | 2 Comments

For single click,first open up the file browser . Open up trash,or start as shown in figure .

snapshot101

Then go to Edit–>Preferences

snapshot12

Open the[......]

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