Written by Scott Rowley
Ok, well thats a bit misleading. We won’t actually be using ‘cat’ but ‘pygmentize’ and its not perfect, but its better than 1 single color
This runs on Debian/Gentoo based Linux systems
apt-get update apt-get install pygmentize
Once thats been installed what I did was to make an alias in my .profile
alias pcat='pygmentize'
Make sure to reload your .profile if you’ve added your alias
cd ~ . .profile
Example cat and pcat outputs:
Written by Scott Rowley
The following is a MOD that I wanted to have for work and I noticed that several people have requested it in different threads on the forum over the years. This has been tested and is functional with 1.6RC5 AND 1.6ST
Purpose: Auto-assign tickets that are submitted via email based on their from address or Subject. If a ticket is assigned to a staff member it will automatically also be assigned to the department they are in.
Written by Scott Rowley
First thing you’ll need to do is to enable the needed mods, ldap.load & authnz_ldap.load These come preloaded with most linux, you’ll just need to enable them.
On Ubuntu:
cd /etc/apache2/mods-enabled ln -s ../mods-available/ldap.load ldap.load ln -s ../mods-available/authnz_ldap.load authnz_ldap.load apache2ctl graceful
You should now be able to implement the following wherever desired:
Example .htaccess file
Order deny,allow Deny from All AuthName "Restricted Page - login with LDAP credentials" AuthType Basic AuthBasicProvider ldap AuthzLDAPAuthoritative on AuthLDAPUrl ldap://ldap.example.com/ou=admins,o=LDAPROOT?adminUser AuthLDAPGroupAttribute memberUid AuthLDAPGroupAttributeIsDN off Require valid-user Satisfy any <Files .htaccess> order allow,deny deny from all </Files>
Note that ‘?adminUser’ on the end of the AuthLDAPUrl line is whatever object you use in your configuration.
/etc/apache2/sites-available/default
Make sure the following is set (the default is AllowOverride AuthConfig)
AllowOverride All
Written by Scott Rowley
Tested and verified working for *nix servers:
Add the following to your .htaccess file in the root of your website:
Options +FollowSymlinks
RewriteEngine on
RewriteCond %{SERVER_PORT} =80
RewriteRule ^(.*) https://%{SERVER_NAME}%{REQUEST_URI}
I don’t work with IIS so check the following link for information on setting up the redirect on IIS servers:
http://www.sslshopper.com/iis7-redirect-http-to-https.html
Written by Scott Rowley
This procedure starts from a fresh install of Ubuntu-Desktop-10.10. This will allow for a graphical interface where none otherwise exists (such as is needed with remote desktop connection). Bear in mind that with VNC you will not have any sound as its not capable (at least not yet)
install xdm, vnc4server, and xinetd.
sudo apt-get install xdm vnc4server xinetd
When asked during installation what the default display manager should be, keep the setting as gdm.
Configure xdm to be able to answer XDMCP requests, comment out the following line in /etc/X11/xdm/xdm-config:
! SECURITY: do not listen for XDMCP or Chooser requests
! Comment out this line if you want to manage X terminals with xdm
!DisplayManager.requestPort: 0
Configure XDM to answer XDMCP requests from localhost, and to listen to just localhost by adding the following lines to /etc/X11/xdm/Xaccess:
localhost
LISTEN localhost
Configure XDM to not bring up a physical display by commenting out the following line in /etc/X11/xdm/Xservers:
#:0 local /usr/bin/X :0 vt7 -nolisten tcp
Configure the startup script to allow XDM to start despite gdm taking care of the screen by removing /etc/X11/default-display-manager:
sudo mv /etc/X11/default-display-manager /etc/X11/default-display-manager.original emacs /etc/X11/default-display-manager (to contain ONLY the following): /usr/bin/xdm
Add the VNC port definition to /etc/services if it has not already been added:
vnc 5900/tcp
Configure the VNC incoming port by creating /etc/xinetd.d/vnc:
service vnc
{
only_from = localhost 192.168.0.1/24
disable = no
id = vnc
socket_type = stream
protocol = tcp
wait = no
user = nobody
server = /usr/bin/Xvnc4
server_args = -geometry 1650x950 -inetd -query localhost -once -SecurityTypes=None -pn -fp /usr/share/fonts/X11/misc/,/usr/share/fonts/X11/75dpi/,/usr/share/fonts/X11/100dpi/ -desktop Ubuntu
log_on_failure += USERID
}
Feel free to modify these options (such as your “only_from” to be your actual network or IP — and geometry to be your desired resolution)
After all these pieces are done, restart the services to load the new configurations:
sudo /etc/init.d/xdm restart
sudo /etc/init.d/xinetd restart
Now you should be able to use VNC to get a login screen.
There is a problem with gnome in this setup where it has a keyboard shortcut assigned to ‘d’, which can be fixed by going into System -> Preferences -> Keyboard Shortcuts and disabling, or reassigning the “Hide all normal windows and set focus to the desktop” shortcut key (source). This may happen because the default key binding is Mod4+D, and there is no Mod4 modifier key on the VNC connection.
Enabling copy/paste
For whatever reason, copy/paste (between host and client) does not work out of the gate here (in my experience) with either tightVNC or realVNC. In order to enable this functionality you will need to do the following:
Enable for THIS session only
Open terminal window (on your Ubuntu box)
su - root (not sudo bash!) vncconfig & exit
Note: For some reason the above didn’t work for my co-worker — we then just used the “enable across reboots” below and that worked fine for him. The error message he had received was “No protocol specified”.
Enable across reboots
emacs /etc/X11/Xsession
Just below the PROGNAME=Xsession line add the following:
# Enable copy/paste with vnc sessions /usr/bin/vncconfig &
If everything worked then you should now have a box on the screen with a few options. You can just minimize this.
This is a moderately modified HowTo of an original article [Sarah Happy]
Written by Scott Rowley
Script is meant to be used with other scripts in order to determine if it is the last day of the month. Useful for making sure a particular script runs at the end of the month. Just add a cron job that checks this every day at the time you would want your code run if it was indeed the last day of the month.
2 0 * * * /usr/bin/last-day-of-the-month.sh
#!/usr/bin/bash # last-day-of-the-month.sh # By: Scott Rowley # http://www.sudobash.net/ ######################################### TODAY=`/usr/local/bin/date +%d` TOMORROW=`/usr/local/bin/date +%d -d "1 day"` # See if tomorrow's day is less than today's if [ $TOMORROW -lt $TODAY ] then echo "Today is the last day of the month, running code…" /run/your/code fi exit 1
Written by Scott Rowley
*Note — This is not an original sudobash.net article — credit goes completely to
http://www.gratisoft.us/sudo/man/1.8.0/sudo.man.html. But I know people use search engines on ‘sudo bash’ and end up here so why not provide the answer as well? 😉
SYNOPSIS
sudo [-D level] -h | -K | -k | -V sudo -v [-AknS] [-a auth_type] [-D level] [-g group name|#gid] [-p prompt] [-u user name|#uid] sudo -l[l] [-AknS] [-a auth_type] [-D level] [-g group name|#gid] [-p prompt] [-U user name] [-u user name|#uid] [command] sudo [-AbEHnPS] [-a auth_type] [-C fd] [-D level] [-c class|-] [-g group name|#gid] [-p prompt] [-r role] [-t type] [-u user name|#uid] [VAR=value] [-i | -s] [command] sudoedit [-AnS] [-a auth_type] [-C fd] [-c class|-] [-D level] [-g group name|#gid] [-p prompt] [-u user name|#uid] file …
DESCRIPTION
sudo allows a permitted user to execute a command as the superuser or another user, as specified by the security policy. The real and effective uid and gid are set to match those of the target user, as specified in the password database, and the group vector is initialized based on the group database (unless the -P option was specified).
sudo supports a plugin architecture for security policies and input/output logging. Third parties can develop and distribute their own policy and I/O logging modules to work seemlessly with the sudo front end. The default security policy is sudoers, which is configured via the file /etc/sudoers, or via LDAP. See the PLUGINS section for more information.
The security policy determines what privileges, if any, a user has to run sudo. The policy may require that users authenticate themselves with a password or another authentication mechanism. If authentication is required, sudo will exit if the user’s password is not entered within a configurable time limit. This limit is policy-specific; the default password prompt timeout for the sudoers security policy is 5 minutes.
Security policies may support credential caching to allow the user to run sudo again for a period of time without requiring authentication. The sudoers policy caches credentials for 5 minutes, unless overridden in sudoers(5). By running sudo with the -v option, a user can update the cached credentials without running a command.
When invoked as sudoedit, the -e option (described below), is implied.
Security policies may log successful and failed attempts to use sudo. If an I/O plugin is configured, the running command’s input and output may be logged as well.
READ MORE »
Written by Scott Rowley
In your PHP page add something like the following:
$variable = popen("path/to/script.sh", 'r');
while (!feof($variable)) {
echo fgets($variable);
flush();
ob_flush();
}
pclose($variable);
Then in your script you can echo the output like normal — though I recommend modifying it to spit out HTML like so:
while [ 1 ] do read CURRENT_ACCOUNT || break echo "Working with account $CURRENT_ACCOUNT…<br />"; done < list_of_accounts.txt
Then when you run the php page your webpage will be updated each time with the output of your script.sh until it is complete, then it will resume with the rest of your php code.
Written by Scott Rowley
<script>
//function to check for a specific email address
function donotreply()
{
if (document.forms["reply"]["send_to"].value == 'do-not-reply@example.com')
{
alert('You would try to send to the one address yer not allowed to....try again!');
return false;
}
return true;
}
</script>
And the form entries…
<form name="reply" onsubmit="return donotreply()"> <input type="text" name="send_to">
Written by Scott Rowley
Remove string from file
perl -ni -e 'print unless /pattern/' /path/to/filename
Replace string with string
perl -p -i -e 's/PATTERN/NEW_ENTRY/g' /path/to/filename
Insert string where delimeter is found
This will replace the original delimiter with the new entry and then add the delimiter so you can use it again in the future.
perl -p -i -e 's/DELIMETER/NEW_ENTRY\n\nDELIMETER/g' /path/to/filename
This will grab anything thats in the standard IPv4 format (anything! not always IPs…but usually).
perl -ne 'print "$&\n" while m#\d+\.\d+\.\d+\.\d+#g' file.txt
Search for and find whole paragraphs containing $string
perl -00ne "print if /$string/i" < file.txt