[Article] Permissions Please! A Guide to CHMOD

**Roxy** · March 19th, 2008, 6:45 PM

What is CHMOD

CHMOD is the changing of modes of different files and folders (directories) within a server.
Modes in other words are permissions.

There are two types of forms of creating permissions, Alpha and Octal. Alpha meaning alphanumeric (using both letters and numbers) and octal meaning numerals (0-7, base of 8). In this article I will cover the basic octal or absolute permissions that you can set for files and folders.

Why Do I Need to CHMOD Files & Folders?
There are a number of reasons why you will need to set certain permissions for files, one of them being for the security of your file. The other being that most scripts cannot work until you have set permissions to them (most likely for the security reasons).

Commonly Used Permissions
Below are the commonly used permissions the most user use and their meanings.

644 - Means that the user can read and write (edit) the file, while a group or other can only read it.
755 - Means that the user can read, write, and execute, while a group or other can only read and execute
777 - Means that both user, group, and other can read, write, and execute the file.

Setting permissions to 777 can be the most unsafe mode that you can set to a file or folder. Although some scripts tell you to set permissions to this number, most servers have PHP SuExecs enabled, which allows you to set permissions to 755 and not have the security fault that 777 may ensue.

User - Meaning the user being you or the person to set the permissions.
Group - Meaning the outside user, who has certain permissions to the file(s). This depends on the "user".
Other - Meaning the outside source, like a robot or script itself, that has nothing to do with the user or group.

Will write more soon!

**GamingHybrid** · March 19th, 2008, 6:53 PM

Might want to include who/what the user, group, and other are exactly

Just trying to help, of course!

**Roxy** · March 19th, 2008, 6:59 PM

No, your help is very much appreciated. =) I've actually have a lot more to add to this. =)

March 19th, 2008, 6:45 PM	#1 (permalink)
Roxy URB4N 5K1LLZ Super #1 Joined in Sep 2005 Lives in Orlando, FL Hosted on SH63 2,660 posts Gave thanks: 81 Thanked 128 times	[Article] Permissions Please! A Guide to CHMOD What is CHMOD CHMOD is the changing of modes of different files and folders (directories) within a server. Modes in other words are permissions. There are two types of forms of creating permissions, Alpha and Octal. Alpha meaning alphanumeric (using both letters and numbers) and octal meaning numerals (0-7, base of 8). In this article I will cover the basic octal or absolute permissions that you can set for files and folders. Why Do I Need to CHMOD Files & Folders? There are a number of reasons why you will need to set certain permissions for files, one of them being for the security of your file. The other being that most scripts cannot work until you have set permissions to them (most likely for the security reasons). Commonly Used Permissions Below are the commonly used permissions the most user use and their meanings. 644 - Means that the user can read and write (edit) the file, while a group or other can only read it. 755 - Means that the user can read, write, and execute, while a group or other can only read and execute 777 - Means that both user, group, and other can read, write, and execute the file. Setting permissions to 777 can be the most unsafe mode that you can set to a file or folder. Although some scripts tell you to set permissions to this number, most servers have PHP SuExecs enabled, which allows you to set permissions to 755 and not have the security fault that 777 may ensue. User - Meaning the user being you or the person to set the permissions. Group - Meaning the outside user, who has certain permissions to the file(s). This depends on the "user". Other - Meaning the outside source, like a robot or script itself, that has nothing to do with the user or group. Will write more soon! __________________ Roxanne Urban Roxy -Personal Blog SH63 - the best darn shared server!

March 19th, 2008, 6:53 PM	#2 (permalink)
GamingHybrid Bow before Surpass! Super #1 Joined in Sep 2004 1,547 posts Gave thanks: 91 Thanked 49 times	Might want to include who/what the user, group, and other are exactly Just trying to help, of course! __________________ Wii Hotspot - Upcoming project! -http://www.wiihotspot.com Make a cPanel Login Form \| Why is my Account Suspended?

March 19th, 2008, 6:59 PM	#3 (permalink)
Roxy URB4N 5K1LLZ Super #1 Joined in Sep 2005 Lives in Orlando, FL Hosted on SH63 2,660 posts Gave thanks: 81 Thanked 128 times	No, your help is very much appreciated. =) I've actually have a lot more to add to this. =) __________________ Roxanne Urban Roxy -Personal Blog SH63 - the best darn shared server!

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