Using the Quota tutorial in Linux

1 first confirm that the directory to be restricted is a separate file system

Df-h/home Test

2 If it is a separate file system. You need to add quota support to the directory.

A: Temporary program, computer restart failure: Mount-o remount,usrquota,grpquota/home

B: Reboot can also be used:

Edit Fstab File: Vi/etc/fstab

Add the following usrquota,grpquota:label=/home/home to the Fstab file ext3 Defaults,usrquota,grpquota 1 2

3: Establish quota files

Quotacheck-avug

-A: Scan all in/etc/mtab, tons of quota support filesystem, plus this parameter,/mount_point can not write, because scan all filesystem!

-U: For users to scan the file does not 弽 use, will establish aquota.user

-G: In view of the group scan file does not 弽 use situation, will establish aquota.group

-V: Displays the information of the scanning process;

-F: Force scan of file system, and write new quota configuration file (dangerous)

-M: Forces a read-write scan of the file system to be used only under special circumstances.

4: Start Quota

Quotaon [-avug] Boot

-U: Quota (aquota.user) for users

-G: For group starter quota (Aquota.group)

-V: Displays the relevant information about the process;

-A: According to the filesystem 讴 in the/etc/mtab quota, if not add-a, then need to add a specific filesystem Oh!

5:quota off

-A: All filesystem quota are closed (according to/etc/mtab)

-U: Turn off user quota only for the/mount_point that follows

-G: Closes the group quota only for the/mount_point that follows

6:quota Editor

Edquota [-u username] [-g GroupName]

-U: Take account name back. Can enter the quota edit screen (vi) to 讴 fixed username limit value;

-G: After the group name. Can enter the quota edit screen (vi) to 讴 fixed groupname limit value;

-T: You can modify the grace time.

-P: Copy template. The template account for the existing and set a good quota users, meaning "the model account this person's quota limit to copy to the new account"!

Use the following command to modify the quota for myquota1

Edquota-u myquota1

This will go to VI mode, the fields that can be edited are as follows: (Soft/hard is 0 o'clock, means no restriction)

A. File system (FileSystem): Describes which file system (partition) The limit value is for;

B. Disk capacity (Blocks): This value is quota to calculate the 杢, the unit is Kbytes, please do not change it;

C. Soft: Soft limit for disk capacity (block), in KB

D. Hard:block hard limit, per KB;

E. Number of archives (inodes): This is the quota of their own calculation, the number of units, please do not change him;

F. Soft:inode the soft limit value;

G. Hard:inode the hard limit value;

Use the following command copy quota settings

Edquota-p Myquota1-u Myquota2

Use the following command to set up the quota group:

Edquota-g MYQUOTAGRP

Set the quota grace period by using the following command:

Edquota-t

Use the command to enter VI mode, you can edit the contents as follows:

FileSystem block grace period Inode grace period

/dev/hda3 14days 7days

7:quota Report View:

quota [-uvs] [username]

quota [-gvs] [groupname]

-U: Username can be followed to indicate the quota limit value for the user. If the username is not connected, the quota limit value of the performer is displayed.

-G: GroupName can be followed to indicate the quota limit value of the group.

-V: Displays the quota value of each user in filesystem;

-S: Use 1024 for multiple 杢 挃 units, will display such as M units!

Use the following command to view the user quota settings:

Quota-uvs myquota1 Myquota2

Use the following command to view the set values for the group quota:

Quota-gvs MYQUOTAGRP

8:repquota: Reporting on file system limits

repquota-a [-vugs]

-A: Direct to/etc/mtab search for filesystem with quota signs, and report quota results;

-V: The output data will be all filesystem related information;

-U: Displays the user's quota limit (this is the default value);

-G: Displays the quota limit for individual groups.

-S: Display results using M, G for units

Use the following command to view all quota settings for the current file system

Repquota-auvs

9:setquota: Set the quota limit directly in the order

Setquota [-u|-g] name block (soft) block (hard)

Use the following command to set the value of the quota directly:

Setquota-u Myquota5 100000 200000 0 0/home

10:warnquota: Send a warning letter to a person exceeding the limit

Modify/etc/warnquota.conf

Let the system perform Warnquota automatically

Edit Vi/etc/cron.daily/warnquota

Add the following command:/usr/sbin/warnquota # you're not wrong! As long as this line, the execution file is written in an absolute path!