If you are using DHCP to receive IP Address for your Sun Solaris system, you may end up with no hostname assigned to the system. This can be confirmed when there is no hostname at the prompt or if the output for the command “hostname” is as follows:
# hostname
unknown
or the /etc/hosts file has an entry as follows:
# cat /etc/hosts
#
# Internet host table
#
127.0.0.1 localhost
192.168.100.3 unknown # Added by DHCP
This happens when the DHCP server doesn’t provide a hostname for your server. Most of the DHCP Servers or routers acting as a DHCP Server doesn’t provide a hostname and Solaris DHCP agent relies on the DHCP server for its hostname.
To fix this problem, edit the dhcpagent config and set it not to request a Hostname from the DHCP server and then add a hostname to the /etc/hosts & /etc/nodename file.
Edit DHCPAGENT config
[For Solaris 10, this is not required as setting the hostname in /etc/nodename overrides the hostname provided by the DHCP Server. Move onto the next step]
Edit the dhcpagent config file /etc/default/dhcpagent with your favorite editor
# vi /etc/default/dhcpagent
and look for
PARAM_REQUEST_LIST=1,3,6,12,15,28,43
and remove the Parameter “12″ from the above to look as follows:
PARAM_REQUEST_LIST=1,3,6,15,28,43
and save the file.
Now, add the hostname to the /etc/nodename & /etc/hosts as follows
Note : if /etc/nodename file does not exist then create the file and add the parameter
# vi /etc/nodename
and add the hostname you want it to have (solarisserver for me)
# cat /etc/nodename
solarisserver
and edit the /etc/hosts file
# vi /etc/hosts
and add the line similar to the following
192.168.100.3 globalzone
Now,reboot the server and you should be all fine with hostname set for the system.
# init 6
Step: 1 Installing the Subversion package
#apt-get install subversion
Step:2 Configure Subversion Directory
#mkdir –p /home/svn/repository
Step 3 Configure Subversion group
#groupadd svn
#chgrp svn /home/svn/repository
#chmod g+rw /home/svn/repository
(you need to make sure that all new files and directories created in the repos directory (in other words, anything committed to the repositories) will also be owned by the group)
#chmod g+s /home/svn/repository
#usermod –a –G svn user1 (Assign users to svn group)
#usermod –a –G svn user2 (Assign users to svn group)
Step 4: Creating a New repository
#svnadmin create /home/svn/repository/test
Step 5: Checkout Repository
#svn checkout file:///home/svn/repository/test
Output: Checked out revision 0
Step 6: Add new files to Empty repository
#cd test
# echo ‘Hello, World!’ > hello.txt
#svn add hello.txt
Output : A hello.txt
Step 7 : Commit files
#svn commit -m “Added a ‘hello world’ text file.”
Output :
Adding hello.txt
Transmitting file data .
Committed revision 1.
Accessing SVN repository
Step 1: Configure Users for Access SVN repository.
#vi /home/svn/repository/conf/authz
(Add below entry)
[/]
User1 = rw
[/test]
User1 = rw
User2 = rw
(save file)
#vi /home/svn/repository/conf/passwd
(Add below entry)
User1=password1
User2=password2
(save file)
Step 2: Configure files for authentication
# rm –rf /home/svn/repository/test/conf/authz
# rm –rf /home/svn/repository/test/conf/passwd
#vi /home/svn/repository/conf/svnserve.conf
[general]
anon-access = none
password-db = /home/svn/repository/conf/passwd
realm = Team
Step 3: Start repository
#svnserve -d –foreground -r /home/svn/ repository
Step 4 : Test the Repository
#svn checkout svn://ipaddress/test –username user1
Step 5: Initialize the Script at Startup
#wget http://odyniec.net/articles/ubuntu-subversion-server/svnserve
#move svnserve /etc/init.d/
# chmod +x /etc/init.d/subserve
#update-rc.d svnserve defaults
Solutions:
Solution 1) Remove php5-mysql with “apt-get remove php5-mysql” and install it again or
Solution 2) Check your php.ini file to ensure it’s including the mysql.so library (extension=mysql.so) or
Solution 3) Type “dpkg-reconfigure php5-mysql” (For ubuntu and debian users)
Default Linux Run Level: Total 7 Run Level
RunLevel 0: Halt System – To shutdown the system
RunLevel 1: Single user mode
RunLevel 2: Basic multi user mode without NFS
RunLevel 3: Full multi user mode (text based)
RunLevel 4: unused
RunLevel 5: Multi user mode with Graphical User Interface
RunLevel 6: Reboot System
Default Solaris Run Level: Total 8 Run Level
RunLevel S: Single user state (useful for recovery)
RunLevel 0: Access Sun Firmware (ok> prompt)
RunLevel 1: System administrator mode
RunLevel 2: Multi-user w/o NFS
RunLevel 3: Multi-user with NFS
RunLevel 4: Unused
RunLevel 5: Completely shutdown the host (like performing a power-off)
RunLevel 6: Reboot but depend upon initdefault entry in /etc/inittab
1) List All services
2) List Running services at Runlevel 3
3) Start service
4) Stop service
5) Start service on different RunLevel
6) Restart services
7) Add services
8 ) Remove Services
1) Add User
2) Delete user
3) Modify user
4) Add Group
5) Delete group
6) Modify group
7) Add User to Group
Use useradd command to add new users to existing group (or create a new group and then add user). If group does not exist, create it. Syntax:
Syntax:
useradd -G {group-name1},{group-name2} username (for secondary group)
useradd -g {group-name} username (for primary group)
#Script
#!/bin/bash
# This script installs Deny Host on RedHat(RHEL) or Fedora.
################################################################################
# This script comes with no warranty or guarantee. Please review the script
# before you run it to ensure that it will not cause adverse effects on your
# system.
# If you have any questions or comments, please e-mail: sanjaydalal4u@gmail.com
################################################################################
sudo echo
if [ -f /etc/init.d/denyhosts ]; then
echo Removing existing init scripts
sudo /etc/init.d/denyhosts stop
sudo rm -rf /etc/init.d/denyhosts
sudo chkconfig –remove denyhosts
echo ‘*********************’
echo
fi
if [ -d /usr/share/denyhosts/ ]; then
echo Removing existing installation
sudo rm -rf /usr/share/denyhosts
echo ‘*********************’
echo
fi
echo Installing ‘python’ and dependencies.
sudo yum -y install python
echo ‘*********************’
echo
cd /root
echo Downloading DenyHost
wget http://downloads.sourceforge.net/project/denyhosts/denyhosts/2.6/DenyHosts-2.6.tar.gz?use_mirror=biznetnetworks
echo ‘*********************’
echo
echo Unpacking DenyHost
Step 1 : Install application
#sudo apt-get install p7zip
Step 2 : Exectute this command
#p7zip -d filename.7z
Step 1: Installation
#apt-get install samba
Step 2: Configuration
Configuration file : /etc/samba/smb.conf
- Edit below section
Workgroup = EXAMPLE
…………
Security = user
- Create a new section at the bottom of the file /etc/samba/smb.conf
[Samba Share]
Comment= Samba File Server Share
Path=/path to directory
Browsable = yes
Guest ok = yes
Read only = no
Create mask = 0755
Step 3: Create directory and change permissions
#mkdir /path to directoy
#chown -R nobody:nobody /path to directory
Step 4 : Restart Samba service
#/etc/init.d/samba restart
Enjoy!!!!!!!!!!!!
