Monday, July 20, 2009

How To Install Java In Centos/Debian/Redhat/Ubuntu?

How To Install Java In Centos/Debian/Redhat?

To install java in Centos/Debian/Redhat/Ubuntu, just download the .bin file form java website like the steps bellow:

1. Open http://java.sun.com/javase/downloads/ find "Java SE Runtime Environment (JRE)" and click Download

2. Choose Linux as Operating System, then click Continue

3. Right click the download link then paste to the terminal

4. Download file jre-6u14-linux-i586-rpm.bin using wget from terminal

5. Type chmod +x jre-6u14-linux-i586-rpm.bin

6. Type ./jre-6u14-linux-i586-rpm.bin

7. Check the java version installed, by typing java -version

Sunday, July 12, 2009

How To Add/Edit SSH Port Ubuntu/CENTOS/DEBIAN?

How To Add/Edit SSH Port Ubuntu/CENTOS/DEBIAN?

The default port of SSH is 22, if you want to add another port just follow the steps below:

1. Login as root

2. Open terminal

3. type : nano /etc/ssh/sshd_config

4. add the line Port port_number, for example if we want to add port 443, then:#

#What ports, IPs and protocols we listen for
Port 22
Port 80

5. Save the change.

6. To restart the SSH, type:
/etc/init.d/sshd restart for Ubuntu/Centos/Redhat
/etc/init.d/ssh restart for Debian

Sunday, July 5, 2009

How To Install/Update Mozila Firefox 3.5 In Ubuntu?

How To Install/Update Mozila Firefox 3.5 In Ubuntu?

Follow the steps bellow:
1. Download the latest mozila firefox http://www.mozilla.com/products/download.html?product=firefox-3.5&os=linux&lang=en-US or you can directly type sudo wget http://www.mozilla.com/products/download.html?product=firefox-3.5&os=linux&lang=en-US
2. Type sudo tar jxvf firefox-3.5x.tar.bz2
3. sudo cp firefox /usr/lib -R
4. sudo ln -s /usr/lib/firefox/firefox /usr/bin/firefox
5. Finish

How To Install FTP In Linux Ubuntu?

How To Install FTP In Linux Ubuntu?

Follow the steps below:
1. Open terminal
2. Type sudo apt-get install proftpd . Wait until the installation finish
3. Chose server type standalone
4. To configure ftp edit file /etc/proftpd/proftpd.conf by typing sudo gedit /etc/proftpd/proftpd.conf

For example, if you want to change the port of ftp, just edit the line Port 21 (default port). In this example I change the port from 21 to 2000 (bold characters)

#
# /etc/proftpd/proftpd.conf -- This is a basic ProFTPD configuration file.
# To really apply changes reload proftpd after modifications.
#

# Includes DSO modules
Include /etc/proftpd/modules.conf

# Set off to disable IPv6 support which is annoying on IPv4 only boxes.
UseIPv6 on
# If set on you can experience a longer connection delay in many cases.
IdentLookups off

ServerName "Yuif"
ServerType standalone
DeferWelcome off

MultilineRFC2228 on
DefaultServer on
ShowSymlinks on

TimeoutNoTransfer 600
TimeoutStalled 600
TimeoutIdle 1200

DisplayLogin welcome.msg
DisplayChdir .message true
ListOptions "-l"

DenyFilter \*.*/

# Use this to jail all users in their homes
# DefaultRoot ~

# Users require a valid shell listed in /etc/shells to login.
# Use this directive to release that constrain.
# RequireValidShell off

# Port 21 is the standard FTP port.
#Port 21
Port 2000

# In some cases you have to specify passive ports range to by-pass
# firewall limitations. Ephemeral ports can be used for that, but
# feel free to use a more narrow range.
# PassivePorts 49152 65534

# If your host was NATted, this option is useful in order to
# allow passive tranfers to work. You have to use your public
# address and opening the passive ports used on your firewall as well.
# MasqueradeAddress 1.2.3.4

# This is useful for masquerading address with dynamic IPs:
# refresh any configured MasqueradeAddress directives every 8 hours

# DynMasqRefresh 28800


# To prevent DoS attacks, set the maximum number of child processes
# to 30. If you need to allow more than 30 concurrent connections
# at once, simply increase this value. Note that this ONLY works
# in standalone mode, in inetd mode you should use an inetd server
# that allows you to limit maximum number of processes per service
# (such as xinetd)
MaxInstances 30

# Set the user and group that the server normally runs at.
User proftpd
Group nogroup

# Umask 022 is a good standard umask to prevent new files and dirs
# (second parm) from being group and world writable.
Umask 022 022
# Normally, we want files to be overwriteable.
AllowOverwrite on

# Uncomment this if you are using NIS or LDAP via NSS to retrieve passwords:
# PersistentPasswd off

# This is required to use both PAM-based authentication and local passwords
# AuthOrder mod_auth_pam.c* mod_auth_unix.c

# Be warned: use of this directive impacts CPU average load!
# Uncomment this if you like to see progress and transfer rate with ftpwho
# in downloads. That is not needed for uploads rates.
#
# UseSendFile off

TransferLog /var/log/proftpd/xferlog
SystemLog /var/log/proftpd/proftpd.log


QuotaEngine off



Ratios off



# Delay engine reduces impact of the so-called Timing Attack described in
# http://security.lss.hr/index.php?page=details&ID=LSS-2004-10-02
# It is on by default.

DelayEngine on



ControlsEngine off
ControlsMaxClients 2
ControlsLog /var/log/proftpd/controls.log
ControlsInterval 5
ControlsSocket /var/run/proftpd/proftpd.sock



AdminControlsEngine off


#
# Alternative authentication frameworks
#
#Include /etc/proftpd/ldap.conf
#Include /etc/proftpd/sql.conf

#
# This is used for FTPS connections
#
#Include /etc/proftpd/tls.conf

# A basic anonymous configuration, no upload directories.

#
# User ftp
# Group nogroup
# # We want clients to be able to login with "anonymous" as well as "ftp"
# UserAlias anonymous ftp
# # Cosmetic changes, all files belongs to ftp user
# DirFakeUser on ftp
# DirFakeGroup on ftp
#
# RequireValidShell off
#
# # Limit the maximum number of anonymous logins
# MaxClients 10
#
# # We want 'welcome.msg' displayed at login, and '.message' displayed
# # in each newly chdired directory.
# DisplayLogin welcome.msg
# DisplayChdir .message
#
# # Limit WRITE everywhere in the anonymous chroot
#
#
# DenyAll
#

#

#
# # Uncomment this if you're brave.
# #
# # # Umask 022 is a good standard umask to prevent new files and dirs
# # # (second parm) from being group and world writable.
# # Umask 022 022
# #
# # DenyAll
# #

# #
# # AllowAll
# #

# #

#
#


To allow anonymous user accessing ftp you can unchecked the # mark start from open tag Anonymous close tag Anonymous