sandip's blogUpgrading php on DirectAdmin ServersSubmitted by sandip on Fri, 09/07/2007 - 15:26Download the source tar.gz file from php.net and place it in "/usr/local/directadmin/customapache" Edit the "/usr/local/directadmin/customapache/build" file and change the version of php to the version that was downloaded. Then run: # cd /usr/local/directadmin/customapache/Restart apache when finished. Sending files as mail attachments via the shellSubmitted by sandip on Thu, 09/06/2007 - 15:01This article shows how to send e-mails from a shell script, including file attachments. It lists different ways (uuencode, MIME), and explains the advantages and disadvantages of each. There are other great articles and tips on shell scripts at the site!! Drupal-4.7.7 Upgrade Notes...Submitted by sandip on Fri, 08/31/2007 - 15:59I run the site on the open-source Drupal CMS and recently updated to the latest 4.7.7 version. The site has quite a few customizations and is not a standard install. The html document root is a symbolic link to the actual drupal gunzipped folder and all other relevant custom modules are also just symbolically linked from the modules folder to keep the updates as simple as possible. I also use the "bluemarine" theme which has been customized and named as "linuxweblog", so updates don't necessarily override my custom theme. Pre-Update Preparation:
Login to website as the administrator. Disable the "Tag Cloud" block as it has some custom php. Update:
Download from http://drupal.org/project/releases Untar the gzip package. `rm html` -- remove the symbolic link. `ln -s drupal-* html` -- link to the newly extracted folder. `cd html` Edit the "sites/default/settings.php" file
Edit the $base_url without trailing slash to http://www.linuxweblog.com Post-Update Customizations
Copy or merge node.tpl.php, page.tpl.php and style.css to the linuxweblog theme folder. Merge .htaccess file and bring over the old customizations. `cp -a ../drupal-old-*/{robots.txt,favicon.ico} .` `ln -s ../site_files/ site_files` -- create the symbolic links to where the cache and other static files are placed. `ln -s site_files/cache/ cache` -- create the link to the cache. `ln -s ../../drupal_contribs modules/custom_mods` -- create the link to the custom modules. Enable the "Tag Cloud" block. Re-apply the google search hack to the "search.module" . Security:
Chown -R user:group drupal-* Set the directory permissions: `find . -type d -exec chmod 755 {} \;` Set the file permissions: `find . -type f -exec chmod 644 {} \;` `chmod 640 sites/default/settings.php` `chgrp apache sites/default/settings.php` Turning off safe_mode and open_basedir in PleskSubmitted by sandip on Thu, 08/30/2007 - 22:17Create a "vhost.conf" file in "/var/www/vhosts/<DOMAIN.TLD>/conf/" <Directory /var/www/vhosts/<DOMAIN.TLD>/httpdocs>Rebuild the domain configs for the particular host via: /usr/local/psa/admin/sbin/websrvmng -u --vhost-name=<DOMAIN.TLD>or rebuild all via: # /usr/local/psa/admin/sbin/websrvmng -acleanup ftp backups with bash shell scriptSubmitted by sandip on Wed, 08/29/2007 - 22:54Here's a small bash code snippet to clean up ftp backups maintained by date. Specifically, if using the SysBK to backup to an external server with just ftp access. It should be run daily via cron and cleans up folders older than 14 days. #!/bin/bashThe du option will output the space currently being used by the backups. NOTE: For security reasons, you should use ftps protocol to connect to the remote backup server if possible, and can force it via: set ftp:ssl-force trueThis can also be put in the "~/.lftprc" or "~/.lftp/rc" file. GalleryRemote on Ubuntu Edgy 6.10Submitted by sandip on Sun, 08/26/2007 - 22:54Gallery Remote install kept erroing out with: Preparing to install...The way around the error was to comment out the assumed kernel. $ cp GalleryRemote.1.5.Linux.NoVM.bin GalleryRemote.1.5.Linux.NoVM.bin.bakOnce installed Gallery Remote would not run and I had run the same hack for the Gallery_Remote launcher script as well. $ cp Gallery_Remote Gallery_Remote.bakservices that are not necessary on a web serverSubmitted by sandip on Tue, 08/21/2007 - 15:45These are some services I would normally turn off on web servers.
There may be more, but if you've cleaned up your rpm packages, it would probably not exist. rpm packages not necessary for a web serverSubmitted by sandip on Tue, 08/21/2007 - 15:37Below is a list of rpm packages that are not necessary on a web server. Use it as a reference starting point for cleaning up servers. You may also want to make sure not to run services not required by the server.
Check your server for rootkits with ChkrootkitSubmitted by sandip on Thu, 08/09/2007 - 16:25chkrootkit is a tool to locally check your system for signs of a compromise via rootkits. It contains a shell script that checks system binaries for rootkit modification, signs of LKM trojans, interface modes and lastlog, wtmp, utmp deletions. Install via: # cd /usr/localMake sure to check the md5sum of the download as well. Put the below into "/etc/cron.daily/chkrootkit.sh" to run a daily report: #!/bin/bashThe cron script will only output an email if it detects anything suspicious. Note, that bindshell port 465 infection is a false alarm as in my case EXIM uses port 465 for secure connections. So, you could similarly grep out any such false alarm and adjust the cron script. Changing TimezonesSubmitted by sandip on Fri, 07/27/2007 - 11:42# rm /etc/localtime |
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