Tag: apache2

Install Subversion Server on Ubuntu

Subversion is a commonly used central version control system for software development. There are currently still a large number of organizations that rely upon it, many have since moved on to Git.

  1. sudo apt-get install apache2 apache2-utils
  2. sudo apt-get install subversion subversion-tools libapache2-svn
  3. sudo mkdir /home/svn
  4. svnadmin create /home/svn/test
  5. Create a group for subversion users:
    sudo groupadd subversion
  6. sudo adduser USERNAME
  7. Add a user to the group:
    sudo useradd -G USERNAME subversion
  8. sudo chown -R www-data:subversion /home/svn/test
  9. sudo chmod -R g+rws /home/svn/test
  10. sudo a2enmod dav_svn
  11. To create/clobber a new file for the first user:
    sudo htpasswd -c /etc/apache2/.htpasswd YOURUSER
  12. To add additional users:
    sudo htpasswd /etc/apache2/.htpasswd YOURUSER
    (repeat for new users without the -c as that creates/clobbers the file)
  13. sudo vi /etc/apache2/sites-available/000-default.conf
    Then add to the bottom:
    (NOTE1: the LimitExcept can be enabled to allow anonymous access):
    (NOTE2: the LimitXMLRequestBody can be uncomment to allow large commits)

    <Location /svn>
    DAV svn
    SVNParentPath /home/svn
    AuthType Basic
    AuthName "Subversion Repository"
    # AuthUserFile /etc/svn-auth
    AuthUserFile /etc/apache2/.htpasswd
    #LimitXMLRequestBody 0
    #<LimitExcept GET PROPFIND OPTIONS REPORT>
    Require valid-user
    #</LimitExcept>
    </Location>
  14. sudo service apache2 reload
  15. sudo service apache2 restart

    NOTE: At this point you should be able to browse and do a remote checkout of the code from another machine….

    http://YOUR-IP-OR-HOSTNAME/svn
    and
    svn co http://YOUR-IP-OR-HOSTNAME/svn/test --username YOURUSER --password YOURPASS

  16. sudo vi /etc/init/svnserve.conf
    Add the following:

    # svnserve - Subversion server
    description "Subversion server"
    start on (local-filesystems and net-device-up IFACE=lo and started udev-finish)
    stop on runlevel [06]
    chdir /home/svn
    respawn
    respawn limit 2 3600
    exec /usr/bin/svnserve --foreground --daemon --config-file /home/svn/repos/conf/svnserve.conf --root /home/svn/repos/
  17. Then execute:
    sudo initctl start svnserve
  18. Back on the client side…
    Create a new folder inside your user folder:
    cd ~/test
  19. Check out the project into this folder:
    svn checkout http://YOUR-IP-OR-HOSTNAME/svn/test
  20. Let us just add a new HTML index file to the folder:
    vi index.html
  21. Add it to version control:
    svn add index.html
    Commit the new file:
    svn commit -m "commit message"
    Update:
    svn up
  22. That should cover most cases for you…

REFERENCES:

Install Splunk Universal Forwarder on Ubuntu

After a while it can get tedious to access and review server logs via the command line. There are several tools available that can provide the same information in a graphical manner. Recently I’ve migrated to Splunk as there are both Enterprise and Free versions available.

  1. Of course, you’ll need a Splunk server installed first, as the forwarder is really just another (lighter) instance that will forward the log information to a central location.
  2. Download the system appropriate installer from:
    http://www.splunk.com/download/universalforwarder
  3. Check to see if you are running 32 or 64 bit OS.uname -aIf you see i686 you are 32 bit, if x86_64 you are 64 bit!
  4. Download, you’ll likely need a different version:sudo dpkg -i splunkforwarder-6.1.3-220630-linux-2.6-intel.deb
    or
    sudo dpkg -i splunkforwarder-6.1.3-220630-linux-2.6-amd64.deb
  5. Enable auto-start on reboot:cd /opt/splunkforwarder/bin/

sudo ./splunk enable boot-start

    1. Start the server:sudo service splunk start
    2. Set the password:

      The default ‘admin‘ password is ‘changeme‘ so we need to change it immediately to do anything else, or we will see errors in future steps.

      sudo /opt/splunkforwarder/bin/splunk edit user admin -password YOUR_NEW_PASSWORD -auth admin:changeme

    3. Set the server:sudo /opt/splunkforwarder/bin/splunk add forward-server YOUR_SERVER_ADDRESS:9997

      NOTE: if you get prompted for a splunk username/password you likely skipped the above step. Remember – the forwarder is a new ‘light’ installation of the server and as such has it’s own users!

    4. Enable some monitors on the box:Some common services and log locations to get you started…
      Apache2 HTTPd
      sudo /opt/splunkforwarder/bin/splunk add monitor /var/log/apache2 -index main -sourcetype Apache2
      Tomcat7
      sudo /opt/splunkforwarder/bin/splunk add monitor /opt/tomcat7/logs -index main -sourcetype Tomcat7
      MySQL
      sudo /opt/splunkforwarder/bin/splunk add monitor /var/log/mysql -index main -sourcetype MySQL
      Postfix (SMTP)
      sudo /opt/splunkforwarder/bin/splunk add monitor /var/log/mail.log -index main -sourcetype Postfix
      Squid3 (Proxy)
      sudo /opt/splunkforwarder/bin/splunk add monitor /var/log/squid/access.log -index main -sourcetype Squid3
      sudo /opt/splunkforwarder/bin/splunk add monitor /var/log/squid/cache.log -index main -sourcetype Squid3

      SonarQube
      sudo /opt/splunkforwarder/bin/splunk add monitor /opt/sonar/logs -index main -sourcetype Sonar
      PM2
      sudo /opt/splunkforwarder/bin/splunk add monitor /home/{user}/.pm2/logs -index main -sourcetype PM2
      NPM
      sudo /opt/splunkforwarder/bin/splunk add monitor /home/scott/.npm/_logs -index main -sourcetype NPM
  1. (OPTIONAL) Verify configuration by opening file at the following:sudo su
    vi /opt/splunkforwarder/etc/apps/search/local/inputs.conf
    exit
  2. You now should be able to log into your server and see new data flowing from the forwarder.

    NOTE: this requires you to enable ‘receiving’ of data on the port specified above, usually 9997.

REFERENCES:

Name based virtual hosting with Apache2 on Ubuntu

I often find it necessary to setup a temporary server for testing web applications. The easiest way to support this is often to create an integration (beta) test server that can be configured to support multiple hosts.

Initial Installation:

sudo apt-get install apache2
sudo a2enmod proxy
sudo a2enmod proxy_http
sudo a2enmod rewrite
sudo chmod 755 /var/www

To add a new site:

cd /etc/apache2/sites-available
sudo cp 000-default.conf yourdomain.com.conf
sudo vi yourdomain.com.conf
(change values as appropriate)
sudo chown -R YOURUSER:YOURGROUP yourdomain.com.conf
sudo mkdir -p /var/www/yourdomain.com
sudo chmod 755 /var/www
sudo vi /var/www/yourdomain.com/index.html
(add some fluff)
sudo chown -R YOURUSER:YOURGROUP /var/www/yourdomain.com
sudo a2ensite yourdomain.com
sudo service apache2 reload
sudo service apache2 restart

NOTE: replace YOURUSER and YOURGROUP with appropriate values for your server.