first

sudo cat /etc/lsb-release

second

sudo cat /etc/issue

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• Opened new group
• Created new user
• Changed user group
• Check user group is true
• Giving ssh access to user
• Restarting sshd

Lets firstly add a user in Ubuntu

sudo adduser USERNAME

Create new group in Ubuntu

sudo addgroup GROUPNAME

Change user group, you can do it with two way. You can edit file or delete user and add again with group

sudo vi /etc/group

change

GROUPNAME:x:1002:USERNAME

or delete user and add again

sudo userdel USERNAME
sudo useradd USERNAME -g GROUPNAME

Check user group or learn user group in Ubuntu

id USERNAME

Give ssh access to a user in Ubuntu

sudo vi /etc/ssh/sshd_config

change

AllowUsers alonon OTHERUSERNAME NEWUSERNAME

than

sudo service ssh restart

Also you can delete a user in ubuntu with

sudo userdel USERNAME

Group delete in Ubuntu

sudo groupdel GROUPNAME

Tags: group, ssh, ubuntu, user


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]]> http://www.alonon.net/user-groups-and-users-in-ubuntu/feed/ 0 http://www.alonon.net/apt-get-commands-cheat-sheet/ http://www.alonon.net/apt-get-commands-cheat-sheet/#comments Mon, 15 Mar 2010 21:47:48 +0000 ALonon http://www.alonon.net/?p=210 Read more →]]> some apt-get commands

Here is quick cheat sheet you will find handy while using apt-get at shell prompt:

Syntax	Description	Example(s)
apt-get install {package}	Install the new package. If package is installed then try to upgrade to latest version	apt-get install zip apt-get install lsof samba mysql-client
apt-get remove {package}	Remove/Delete an installed package except configuration files	apt-get remove zip
apt-get –purge remove {package}	Remove/Delete everything including configuration files	apt-get –purge remove mysql-server
apt-get update apt-get upgrade	Resynchronize the package index files and Upgrade the Debian Linux system including security update (Internet access required)	apt-get update apt-get upgrade
apt-get update apt-get dist-upgrade	Usually use to upgrade to Debian distribution. For example Woody to Sarge upgrade. ‘dist-upgrade’ in addition to performing the function of upgrade, also intelligently handles changing dependencies with new versions of packages; apt-get has a “smart” conflict resolution system, and it will attempt to upgrade the most important packages at the expense of less important ones if necessary.	apt-get update apt-get dist-upgrade

Tags: apt-get, ubuntu


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]]> http://www.alonon.net/apt-get-commands-cheat-sheet/feed/ 0 http://www.alonon.net/ubuntu-9-10-karmic-koala-released%e2%80%8e/ http://www.alonon.net/ubuntu-9-10-karmic-koala-released%e2%80%8e/#comments Sat, 31 Oct 2009 16:16:52 +0000 ALonon http://www.alonon.net/?p=162 Read more →]]> Ubuntu 9.10 has released, it has some new faetures, i shared a few of them. For more

Store, sync and share


Integrated “Ubuntu One” technology gives you 2 GB of online storage for free. Easily share files between your own and your friends’ computers. Upgrade at low cost for more storage if you need it.


Software Center

Instant access to thousands of free and open-source applications

Categories include: Education, Games, Sound and Video, Graphics, Programming and Office.

Simply select the applications you want to use and the Software Center will add them to your computer

No CDs, no licenses, no hassle.

Download Ubuntu 9.10

• Bittorent links (64 bit) and 32 bit
• Direct ISO CD Images 32 bit
• Direct ISO CD Images 64 bit
• Mirror list
Tags: Linux, ubuntu, ubuntu 9.10


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]]> http://www.alonon.net/ubuntu-9-10-karmic-koala-released%e2%80%8e/feed/ 0 http://www.alonon.net/dns-cache-with-dnsmasq/ http://www.alonon.net/dns-cache-with-dnsmasq/#comments Sat, 05 Sep 2009 20:24:11 +0000 ALonon http://www.alonon.net/?p=137 Read more →]]> To make a faster browsing , you can use dns cache.

To understand why you should use dns cache, you should learn how dns works.



With the each client request, dns try to find ip address for domain. Forexample for each you type www.google.com, your browser try to find google.com ips again. Dns cache is hold this ip in local, so you can access faster.

I’m using dnsmasq , to install in ubuntu.

“sudo apt-get install dnsmasq”

to configure (i’m using static ip, if you are using a dynamic ip more configuration might have to be done. )

open /etc/dhcp3/dhclient.conf

“vi /etc/dhcp3/dhclient.conf”

change

#prepend domain-name-servers 127.0.0.1;

with

prepend domain-name-servers 127.0.0.1;

Example:

dig ebay.com

; <<>> DiG 9.5.1-P2 <<>> ebay.com
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 45431
;; flags: qr rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;ebay.com.            IN    A

;; ANSWER SECTION:
ebay.com.        2330    IN    A    66.211.160.88
ebay.com.        2330    IN    A    66.135.205.13
ebay.com.        2330    IN    A    66.135.205.14
ebay.com.        2330    IN    A    66.135.221.10
ebay.com.        2330    IN    A    66.135.221.11
ebay.com.        2330    IN    A    66.211.160.87

;; Query time: 140 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Sat Sep  5 23:21:51 2009
;; MSG SIZE  rcvd: 122

After dns cache:

dig ebay.com

; <<>> DiG 9.5.1-P2 <<>> ebay.com
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 17990
;; flags: qr rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;ebay.com.            IN    A

;; ANSWER SECTION:
ebay.com.        2327    IN    A    66.211.160.87
ebay.com.        2327    IN    A    66.135.221.11
ebay.com.        2327    IN    A    66.135.221.10
ebay.com.        2327    IN    A    66.135.205.14
ebay.com.        2327    IN    A    66.135.205.13
ebay.com.        2327    IN    A    66.211.160.88

;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Sat Sep  5 23:21:54 2009
;; MSG SIZE  rcvd: 122




Tags: dns cache, dnsmasq, ubuntu


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]]> http://www.alonon.net/dns-cache-with-dnsmasq/feed/ 0 http://www.alonon.net/install-php-apache-mysql-phpmyadmin/ http://www.alonon.net/install-php-apache-mysql-phpmyadmin/#comments Thu, 01 Jan 2009 08:32:59 +0000 ALonon http://www.alonon.net/?p=30 Read more →]]> On ubuntu and kubuntu systems you can install php5 apache2 mysql and phpmyadmin with this command

sudo apt-get install apache2 php5 php5-mysql php5-gd mysql-server phpmyadmin

To enable mod_rewrite run this:

sudo ln -sfn /etc/apache2/mods-available/rewrite.load /etc/apache2/mods-enabled/
sudo /etc/init.d/apache2 restart

Tags: apache, kubuntu, localhost, mysql, Php, phpmyadmin, ubuntu


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