find . -iname *.avi -or -iname *.mpg -or -iname *.mpeg -or -iname *.mov -or -iname *.mp3 -or -iname *.cue -or -iname *.bin -or -iname *.iso -or -iname *.rar -or -iname *.exe -or -iname *.zip -or -iname *.arj -or -iname *.r00 -or -iname *.tar -or -iname *.nrg -or -iname *.wmv -or -iname *.ogg -or -iname *.qt -or -iname *.001 -or -iname *.ace -or -iname *.par -or -iname *.par2 -or -iname *.nfo -or -iname *.img -or -iname *.nzb > warez.txt

The command may take a long time to finish running. Grab some coffee and take care of other business in the mean time. Once the task is done take a look at warez.txt and see what’s eating up your space. Notify the clients that their accounts may be compromised or are being used to store copyright materials and reclaim your space.

RewriteEngine on
RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^http(s)?://(www\.)?yourdomainnamegoeshere.com [NC]
RewriteRule \.(jpg|jpeg|png|gif|bmp)$ - [NC,F,L]

The above script once entered into your .htaccess file (usually in your public_html or www directory) will prevent hotlinking for the listed file types. You can add more file types to block (ie. avi, flv, mov, mpeg, mkv, etc..) by editing the last line. Use pipes ‘|’ to separate the different file types.

<IfModule mod_security.c>
     SecFilterEngine Off
     SecFilterScanPOST Off
</IfModule>

Now you just have to save, exit and restart apache. Run service httpd restart or /etc/init.d/httpd restart or whatever script you have to restart Apache.

for i in `mysqladmin proc | grep Sleep | awk '{print $2}'`; do mysqladmin kill $i; done

perl -v

Is the version the latest you need?
You can see what the latest update is by browsing to http://layer1.cpanel.net/ or use lynx on the server. Once you find an upgrade save the link. Then run the following and change the link to the one you just saved:

cd ~
wget http://layer1.cpanel.net/perl588installer.tar.gz
tar xvzpf perl588installer.tar.gz
cd perl588installer
./install

Once the process completes cPanel may require an update too:

/scripts/upcp --force
/scripts/checkperlmodules --full | less

Check for error messages by running /scripts/checkperlmodules through less.

Some times you may find Apache giving you ’semget’ errors in the error_log and failing to start/function. You can remedy this via the following script:

for i in `ipcs -s | grep nobody | awk '{print $2}'` ; do ipcrm -s $i ; done

That should clear out the semaphores and you should be able to restart Apache.

What is a semaphore?

http://en.wikipedia.org/wiki/Semaphore_(programming)

Create a database connection in the .ASP code as follows:

< %
    Set Conn = Server.CreateObject("ADODB.Connection")
    Conn.Open "Driver={MySql}; Server=localhost; uid=myLogin; pwd=myPass; database=myDB; option=3; port=3306;"
    Set rsmyTable = Conn.Execute("SELECT * From myTable")
% >

Substitute myDomain.com, myDB, myLogin, myPass, myTable with your own specific details.

Check SMART attributes for 3ware port:

smartctl -a -d 3ware,0 /dev/twa0

Check 3ware RAID Array Info:

tw_cli info c0

Drop 3ware RAID Port:

tw_cli maint remove c0 p0

FSCK a drive:

fsck -f -C0 /dev/sda7

Port bonding allows you to combine two ports to allow more throughput for your server

Setup on CentOS

It is important that the mode and xmit_hash_policy be set correctly.

edit /etc/modprobe.conf
add:

alias bond0 bonding

create /etc/sysconfig/network-scripts/ifcfg-bond0
add:

DEVICE=bond0
ONBOOT=yes
BOOTPROTO=none
IPADDR=
NETMASK=
GATEWAY=
USERCTL=no
BONDING_MASTER="yes"
BONDING_MODULE_OPTS="mode=802.3ad xmit_hash_policy=layer3+4 miimon=100"
BONDING_SLAVE0="eth0"
BONDING_SLAVE1="eth1"

edit /etc/sysconfig/network-scripts/ifcfg-eth0
change to:

DEVICE=eth0
ONBOOT=yes
BOOTPROTO=none
USERCTL=no
MASTER=bond0
SLAVE=yes

edit /etc/sysconfig/network-scripts/ifcfg-eth1
change to:

DEVICE=eth1
ONBOOT=yes
BOOTPROTO=none
USERCTL=no
MASTER=bond0
SLAVE=yes

Server Side Complete.

Switch Side Setup

Example Information
For the Example Below we shall assume:
That there’s only Portchannel 1.
The Switchports are Gi0/1 and Gi0/2.
That Portchannel 2 is currently nonexistent.
Vlan 990

Check what is set
Check your interfaces – this also puts in the buffer the older information in case of errors

show run int Gi0/1
show run int Gi0/2

Check the Portchannel Summary Information

show etherchannel summary

The Above will show you what Portchannels are in place already.

Start Configuring

Start the Configuration Terminal

conf t

Select The First Interface of the Port Channel – Here it’s Gi0/1

int Gi0/1

Utilize the Channel Group Command -this creates the Port Channel- Using Channel 2 here because 1 is always reserved -and in use!

channel-group 2 mode on

“Creating a port-channel interface Port-channel 2″ YOU SHOULD SEE THIS

Switch over to the second interface of the Port Channel (faster than “end” then “conf t” then “int Gi0/2″)

int Gi0/2

Utilize the Channel Group Command Again

channel-group 2 mode on

(It shouldn’t say anything this time)

Switch to your shiny new Portchannel

int po2

The Portchannel takes commands. This process overwrites whatever is there. Let’s use info for Vlan 990

Set the switchport Access to Vlan 990

switchport access vlan 990

Set the Switchport Mode to Access

switchport mode access

Set the Load interval to 30 (this sets the polling interval to 30 seconds.)

load-interval 30

Disable Portfast on bonded ports – this prevents a spanning tree loop while the port channel negotiates.

no spanning-tree portfast

End editing

end

Verify and Save

Before you write one last look at the new configuration for the port channel

show run int po2
Building configuration...

Current configuration : 125 bytes
!
interface Port-channel2
switchport access vlan 990
switchport mode access
load-interval 30
spanning-tree portfast
end

And then a last glance at the 2 ports in the portchannel for consistency, then the portchannel summary one last time.

show run int Gi0/1
Building configuration...

Current configuration : 155 bytes
!
interface GigabitEthernet0/1
switchport access vlan 990
switchport mode access
load-interval 30
channel-group 2 mode on
spanning-tree portfast
end
show run int Gi0/2
Building configuration...

Current configuration : 155 bytes
!
interface GigabitEthernet0/2
switchport access vlan 990
switchport mode access
load-interval 30
channel-group 2 mode on
spanning-tree portfast
end

Check the Portchannel summary

show etherchannel summary
Flags:  D - down        P - in port-channel
I - stand-alone s - suspended
H - Hot-standby (LACP only)
R - Layer3      S - Layer2
U - in use      f - failed to allocate aggregator
u - unsuitable for bundling
w - waiting to be aggregated
d - default port

Number of channel-groups in use: 2
Number of aggregators:           2

Group  Port-channel  Protocol    Ports
------+-------------+-----------+-----------------------------------------------
1      Po1(SU)          -        Gi0/21(P)   Gi0/22(P)   Gi0/23(P)
Gi0/24(P)
2      Po2(SD)          -        Gi0/1(D)    Gi0/2(D)

Here we see that Po2 is down. This is only because the server’s not attached.

Write your configuration

write

Congratulations your Port Channel to Vlan 990 is complete. PXE Installs should be criminally fast.

Switch Side Complete

mysql --default-character-set=utf8 database < database.sql

Jumbled Characters or Question Marks For Non-Latin Encoding:

This is a common problem for our international users. They use all kinds of languages which often do not display right when imported from lets say tis620 (thai) into utf8. So this is a step by step guide in getting their site to work:

1. Usually they have already created a database and imported incorrectly. Get them to provide you a backup for their original database off their previous host.

2. Delete all the tables from the database if they have one setup via phpMyAdmin.

3. Now in the database via phpMyAdmin go to operations and change the collation to the proper one, lets say its this620_thai_ci.

4. After having done that you should click the Import tab in phpMyAdmin and make sure you pick the right collation in this case it’s tis620.

5. The database should now be perfect.

6. Now comes the tricky part, you will generally have to make their php scripts run the proper collation before the queries, for custom scripts this will be their own problem usually as the scripts will be too sloppy to be easy to edit. But with non-custom scripts there is usually a class which uses only one or two calls in the entire script to make all the queries.

7. To find this function you should run a recursive grep:

cd /home/username/public_html/
grep -R -i 'mysql_query' *

Usually you will get results like database.php for quality scripts.

8. Most quality scripts will give you one or two results, you should then open up those files with your favorite editor and figgure out how the calls are made and have the script run these two queries before the real queries:

SET NAMES 'tis620'
SET CHARACTER SET tis620_thai_ci

This will often look something like this:

//edited
$this->_cursor = mysql_query("SET NAMES 'tis620'",$this->_resource);
$this->_cursor = mysql_query("SET CHARACTER SET tis620_thai_ci",$this->_resource);

//end of edited, below is actual global mysql query in the file
$this->;_cursor = mysql_query( $this->_sql, $this->_resource );

Another example:

$this->query_id = mysql_query("SET NAMES 'cp1251'", $this->connection_id);
$this->query_id = mysql_query("SET CHARACTER SET cp1251_general_ci", $this->connection_id);

Everything should now start working and the ??? will go away!