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Latest 100 public snipts » bhubbard's snipts The latest snipts from bhubbard.

showing 1-20 of 86 snipts
  • ∞ State 
    <!-- Without Codes -->
<select name="state">
    <option>Alabama</option>
    <option>Alaska</option>
    <option>Arizona</option>
    <option>Arkansas</option>
    <option>California</option>
    <option>Colorado</option>
    <option>Connecticut</option>
    <option>Delaware</option>
    <option>Florida</option>
    <option>Georgia</option>
    <option>Hawaii</option>
    <option>Idaho</option>
    <option>Illinois</option>
    <option>Indiana</option>
    <option>Iowa</option>
    <option>Kansas</option>
    <option>Kentucky</option>
    <option>Louisiana</option>
    <option>Maine</option>
    <option>Maryland</option>
    <option>Massachusetts</option>
    <option>Michigan</option>
    <option>Minnesota</option>
    <option>Mississippi</option>
    <option>Missouri</option>
    <option>Montana</option>
    <option>Nebraska</option>
    <option>Nevada</option>
    <option>New Hampshire</option>
    <option>New Jersey</option>
    <option>New Mexico</option>
    <option>New York</option>
    <option>North Carolina</option>
    <option>North Dakota</option>
    <option>Ohio</option>
    <option>Oklahoma</option>
    <option>Oregon</option>
    <option>Pennsylvania</option>
    <option>Rhode Island</option>
    <option>South Carolina</option>
    <option>South Dakota</option>
    <option>Tennessee</option>
    <option>Texas</option>
    <option>Utah</option>
    <option>Vermont</option>
    <option>Virginia</option>
    <option>Washington</option>
    <option>West Virginia</option>
    <option>Wisconsin</option>
    <option>Wyoming</option>
</select>

<!-- With Codes -->
<select name="state">
    <option value="AL">Alabama</option>
    <option value="AK">Alaska</option>
    <option value="AZ">Arizona</option>
    <option value="AR">Arkansas</option>
    <option value="CA">California</option>
    <option value="CO">Colorado</option>
    <option value="CT">Connecticut</option>
    <option value="DE">Delaware</option>
    <option value="FL">Florida</option>
    <option value="GA">Georgia</option>
    <option value="HI">Hawaii</option>
    <option value="ID">Idaho</option>
    <option value="IL">Illinois</option>
    <option value="IN">Indiana</option>
    <option value="IA">Iowa</option>
    <option value="KS">Kansas</option>
    <option value="KY">Kentucky</option>
    <option value="LA">Louisiana</option>
    <option value="ME">Maine</option>
    <option value="MD">Maryland</option>
    <option value="MA">Massachusetts</option>
    <option value="MI">Michigan</option>
    <option value="MN">Minnesota</option>
    <option value="MS">Mississippi</option>
    <option value="MO">Missouri</option>
    <option value="MT">Montana</option>
    <option value="NE">Nebraska</option>
    <option value="NV">Nevada</option>
    <option value="NH">New Hampshire</option>
    <option value="NJ">New Jersey</option>
    <option value="NM">New Mexico</option>
    <option value="NY">New York</option>
    <option value="NC">North Carolina</option>
    <option value="ND">North Dakota</option>
    <option value="OH">Ohio</option>
    <option value="OK">Oklahoma</option>
    <option value="OR">Oregon</option>
    <option value="PA">Pennsylvania</option>
    <option value="RI">Rhode Island</option>
    <option value="SC">South Carolina</option>
    <option value="SD">South Dakota</option>
    <option value="TN">Tennessee</option>
    <option value="TX">Texas</option>
    <option value="UT">Utah</option>
    <option value="VT">Vermont</option>
    <option value="VA">Virginia</option>
    <option value="WA">Washington</option>
    <option value="WV">West Virginia</option>
    <option value="WI">Wisconsin</option>
    <option value="WY">Wyoming</option>
</select>

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    0 comments - tagged in  posted by bhubbard on Jan 07, 2010 at 11:51 a.m. EST
  • ∞ Check VPS memory 
    #!/bin/bash
bean=`cat /proc/user_beancounters`
guar=`echo "$bean" | grep vmguar | awk '{ print $4;}'`
burst=`echo "$bean" | grep privvm | awk '{ print $5;}'`
priv=`echo "$bean" | grep privvm | awk '{ print $2;}'`
let total=guar/256
let used=priv/256
let burst=burst/256
echo "VPS memory usage:"
echo "Used: $used MB"
echo "Total: $total MB"
echo "Burstable to: $burst MB"

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    0 comments - tagged in  posted by bhubbard on Jul 13, 2009 at 9:53 a.m. EDT
  • ∞ Change Linux hostname without reboot 
    vim /etc/hostname
vim /etc/hosts
hostname new-hostname

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    0 comments - tagged in  posted by bhubbard on Jun 29, 2009 at 12:04 p.m. EDT
  • ∞ Set dns servers 
    vi /etc/resolv.conf
nameserver <dns1_ip_address>
nameserver <dns1_ip_address>

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    0 comments - tagged in  posted by bhubbard on Jun 29, 2009 at 12:04 p.m. EDT
  • ∞ Find all files in /etc owned by root that have been modified within the last day 
    find /etc -user root -mtime -1

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    0 comments - tagged in  posted by bhubbard on Jun 29, 2009 at 12:03 p.m. EDT
  • ∞ Basic Unix/Linux Installation 
    ./configure 
make 
make install 
dpkg -i pkg.deb – install a package (Debian) 
rpm -Uvh pkg.rpm – install a package (RPM)

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    0 comments - tagged in  posted by bhubbard on Jun 29, 2009 at 12:03 p.m. EDT
  • ∞ send direct message on twitter in linux terminal 
    curl -u username:password -d user="reciever" text="the message" http://twitter.com/direct_messages/new.xml

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    0 comments - tagged in  posted by bhubbard on Jun 29, 2009 at 12:03 p.m. EDT
  • ∞ Configuring Linux Plesk to drop external MySQL connections 
    Taken from http://www.europheus.com/?p=64

By default, your MySQL server can be wide open to the internet accepting connections from everyone. With some brute force and bad passwords on your part, there will be a hack party in your database. The best thing to do is to block all external connections to your MySQL port (3306) and allow only internal (localhost) connections. This will allow your web applications to continue to run while rejecting all outsiders. And if needed, you can allow one or more external static IPs to connection, however this is not addressed here.

Using the Plesk firewall module is one way to block external connections, however it is simply a lame web interface to the iptables command. The best way to block external connections is to run the following commands as root.

    # this command makes sure everything on localhost works
    iptables -A INPUT -p all -s localhost -d localhost -j ACCEPT
    # block all external connection attempts to MySQL
    iptables -A INPUT -p tcp –destination-port 3306 -j REJECT
    /etc/init.d/iptables save
    /etc/init.d/iptables restart 

    #check the new definitions
    iptables –list

    Chain INPUT (policy ACCEPT)
    target prot opt source destination
    ACCEPT all — localhost.localdomain localhost.localdomain
    REJECT tcp — anywhere anywhere tcp dpt:mysql reject-with icmp-port-unreachable

    Chain FORWARD (policy ACCEPT)
    target prot opt source destination

    Chain OUTPUT (policy ACCEPT)
    target prot opt source destination 

You can test your work from another server by running: nmap

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    0 comments - tagged in  posted by bhubbard on Jun 04, 2009 at 12:01 p.m. EDT
  • ∞ Upgrading Spamassassin on Plesk servers 
    #Found at http://www.europheus.com/?p=59

Upgrading Spamassassin on a Plesk server is not difficult and can take only a few minutes. This example describes upgrading from Spamassassin version 2.64 to version 3.1.7 on Plesk 7.5

To get the current version of Spamassassin on your server type:

    spamassassin –version

To get the latest version of Spamassassin go here http://spamassassin.apache.org/

Once you have downloaded the tar or zip file, unzip / untar the archive on your server and execute the following commands.

    cd Mail-SpamAssassin-*
    perl Makefile.PL
    [option: add -DSPAMC_SSL to $CFLAGS to build an SSL-enabled spamc]
    make
    make install [as root]

While in the Mail-SpamAssassin directory, you should run the included tests. These tests will let you know if you are missing any modules or if the versions are too old.

    spamassassin -t < sample-nonspam.txt > nonspam.out
    spamassassin -t < sample-spam.txt > spam.out 

Here you may see warnings for several items, for example IO::Socket::INET6 Simply enter this into google and you should find the module to download. These are usually .tar files and you simply untar them and follow the instructions in the README or related text files.

Next you will need to modify the startup script to deal with commandline parameter changes.

Edit the file /etc/init.d/spamassassin and find SPAMDOPTIONS
Remove the parameter –a and save the file.

Next you will need to modify configuration scripts to deal with changes.

Edit the file /etc/mail/spamassassin/local.cf
Comment out (or delete) the rewrite_subject and subject_tag fields and replace them with the rewrite_header field.

    required_hits 7
    # rewrite_subject 1
    # subject_tag *****SPAM*****
    rewrite_header Subject ****SPAM(_SCORE_)****
    report_safe 0 

Next you will need to make the same changes for each mailbox that has it’s own config file. Check for the user_prefs file in each mailbox for each domain.

/var/qmail/mailnames/domainname/mailname/user_prefs

Finally you should restart spamassassin

/etc/init.d/spamassassin restart
/etc/init.d/psa-spamassassin restart

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    0 comments - tagged in  posted by bhubbard on Jun 04, 2009 at 12:00 p.m. EDT
  • ∞ Script to find domains which have mail enabled, then disable them 
    #!/bin/bash
# This script finds all sites that have the mail service on - and then it turns it off.

SiteList=`egrep 'Server(Name)' /var/www/vhosts/*/conf/httpd.include|awk '{print $3}'|grep -v www.*|grep -v '^.*\..*\..*$'|sed 's/:80//'|sed 's/:443//'|sort -u`;

for Site in $SiteList
do
Result=`/usr/local/psa/bin/domain -i $Site | grep 'Mail service' | awk '{print $3}'`;
if [ $Result == On ]; then
Command=`/usr/local/psa/bin/domain -u $Site -mail_service false`
echo "Turning Off Mail Service: $Site";
fi
done

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    0 comments - tagged in  posted by bhubbard on Jun 04, 2009 at 11:56 a.m. EDT
  • ∞ not centos packages 
    # Want to query all those packages installed from 3rd party repositories, not CentOS?

rpm -qa --qf '%{NAME} %{VENDOR}\n' | grep -v CentOS

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    0 comments - tagged in  posted by bhubbard on May 04, 2009 at 5:49 p.m. EDT
  • ∞ Rpm permissions 
    # Have you managed to completely mess up file permissions for a given package? Not a problem, because RPM has you covered.

rpm --setperms <packagename>

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    0 comments - tagged in  posted by bhubbard on May 04, 2009 at 5:49 p.m. EDT
  • ∞ View the Package Changelog 
    # View the Changelog

# Because CentOS and the upstream vendor have backported security patches, the version numbers can often be misleading when you look for CVE fixes. Checking the changelog of a package is a good way to see if the fix has been implemented. Once again, rpm comes to the rescue.

rpm -q --changelog <packagename> | less

# Using less isn't necessary, but for some packages like the kernel, the changelog can be quite long. Using less helps to make things more readable.

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    0 comments - tagged in  posted by bhubbard on May 04, 2009 at 5:48 p.m. EDT
  • ∞ Query Package Install Order and Dates 
    # Query Package Install Order and Dates 
# Useful after an upgrade to find old packages that were not upgraded.

rpm -qa --last >~/RPMS_by_Install_Date

# Review the end of the output file in "less" to find all RPMS older than the install date. Can also grep for specific packages and see when they were installed.

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    0 comments - tagged in  posted by bhubbard on May 04, 2009 at 5:47 p.m. EDT
  • ∞ mchk with spam 
    /usr/local/psa/admin/sbin/mchk --with-spam

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    0 comments - tagged in  posted by bhubbard on Apr 28, 2009 at 1:41 p.m. EDT
  • ∞ Display last reboot 
    last reboot | head -1

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    0 comments - tagged in  posted by bhubbard on Apr 21, 2009 at 6:04 p.m. EDT
  • ∞ Last system boot 
    who –b

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    0 comments - tagged in  posted by bhubbard on Apr 21, 2009 at 6:03 p.m. EDT
  • ∞ Clear out history 
    history -c 

#w ill clear the entire bash history.

# To only clear the current session history use:
history -r.

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    0 comments - tagged in  posted by bhubbard on Apr 21, 2009 at 5:50 p.m. EDT
  • ∞ Clear the command history and screen when you log out 
    #There is a simple solution to this problem, open your ~/.bash_logout file:
vi ~/.bash_logout

#Append any one of the following command:
/usr/bin/clear_console

#OR

/usr/bin/clear

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    0 comments - tagged in  posted by bhubbard on Apr 21, 2009 at 5:49 p.m. EDT
  • ∞ Securely remove files 
    #Securely delete a file called /home/vivek/login.txt:
shred -u ~/login.txt

#You can add a final overwrite with zeros to hide shredding:
shred -u -x ~/login.txt

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    0 comments - tagged in  posted by bhubbard on Apr 21, 2009 at 5:46 p.m. EDT
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