Im trying to limit the diskspace users on the system may consume, and i found quotas (im a total linux noob). But when i try to set it, no matter what i set it to the maximus is 2 GB. Now... i need quite a lot more than that. One user should be able to use 1900 GB and the other 600 GB. How can i fix this? Im using ubuntu server 10.04.
View 9 RepliesI have a few multi-user servers in an academic laboratory. I am having a problem with some users maxing out the available RAM, causing such sever slowdowns the machine essentially crashes. My servers are Dell Power Edge's running Ubuntu 8.10 Server Edition (Not my choice). I would like to set a maximum limit on the amount of ram a user can utilize. This morning I experimented with setting limits via /etc/security/limits.conf and using ulimit. Neither of them prevented my test program, a simple infinite loop of mallocs, from crashing the server.
View 7 Replies View RelatedI've been looking for this feature for months and couldn't find a solution for this. Does anyone know how to create users and limit the user to a specified directory?
View 6 Replies View RelatedHow can i create quota for specified user : mr.X for any specified partition. I have 10 partition, and give mr. X access for only 2 partition and give him different quotas: says 800MB on sda13 and 3GB on sda14.
View 2 Replies View RelatedI have installed CentOS 5.5 on a computational cluster and want to limit the disk space used per user to 10GB. I do not know what is the relation between blocks and the the volume i want (10GB). What is the values I should used in the file opend by "edquota username" command? What is the usage of inode? there are soft and hard items in columns 3 ,4 and 6,7. Which of them should be configured? here is the example by CentOS documents. I only changed the file system which is in my case /dev/sdb0 (this is mounted as /home in my system. What changes I should do to this example to limit the user to 10GB disk scape?
Disk quotas for user testuser (uid 501):
Filesystem blocks soft hard inodes soft hard
/dev/sdb0 440436 0 0 37418 0 0
I know if I run repquota -a I can see the quotas set for all users.How do I modify the quota for a specific user?So say the output for john is:User used soft hard grace used soft hard grace----------------------------------------------------------------------john.someth -- 122844 51200 51200 4995 0 0How do I make his block limits 0 so they are unlimited?
View 1 Replies View Relatedis it possible to limit the size of a specific folder independent of user or group? I want to restrict /var/log to a total size of 1GB. I don't think that the common approach to create a 1GB partition is the right way since it is possible that I want increase or decrease the limit in the near future.
View 3 Replies View RelatedI have a VPS server with 512 MB memory. The php.ini is set so script memory limit = 16 MB. However, I have noticed in my top report, instances like the following:
Quote:
5484 coldclim 25 0 46476 32m 5920 R 0.0 6.4 0:00.93 php
The bold number of 6.4 is the % of sever memory this process is using. 6.4 % of 512 MB of memory is about 32 MB of memory, so it appears that this isn't being limited by php.ini. Am I correct? This leads to the next question: Is there some way to limit the amount of memory a single suphp process can use? (Basically, something like the setting in php.ini which limits suphp processes in the same way.)
Is there any way to limit user name to characters so when I create an account and if the account name is more than 8 characters long, it will not allow.
View 1 Replies View RelatedI have some domains on a VPS server. Typical account memory usage for all domains runs at 50% of available, but I have a problem. One domain is causing me trouble because intermittently traffic will spike on that domain, causing so many requests within 1 min that I exceed my memory allocation for my entire VPS package. Apache is then killed but the virtualization software and Apache must then be restarted.
A sample snippet from tops right before the sever went down would like like this:
All of that memory usage adds up. I would like to "throttle" the number of processes that user/domain can run. I think this would be a quick and easy way to keep the domain from taking down my entire VPS. My understanding is that I could do this with the /etc/security/limits.conf file.
Is that correct?
I have never done this before. Do I want to set a hard or soft limit? I think if I wanted to limit the number of processes for "coldclim" to 15 I would add a line to limits.conf like this:
Code:
Assuming that is correct, can anyone tell me how the website would respond once it reached its limit? Would visitor queries become sluggish, or would the website not come up for them at all?
Limit every user to his own home folder only.I have a web server running 10.04 LTS and as a newbie in the world of server administration, I'm in a bind.Right now, I have three users. Root, which obviously has access to everything, and two other users that each own a website.For these two users, their website is located in their respective home folder in an extra folder they each have Read, Write & Execute permissions on. This is the only folder they can write to. They cannot delete it, or change anything outside the folder.
So far so good, except that by default, they can also read any file in the system, meaning they can navigate to my other websites' folders and read, for instance, the database passwords from WordPress config files.This is obviously problematic.The users access their files and folders through SSH with FileZilla.
How can I prevent these users from reading sensitive data, i.e. how can I restrict their access to only their home folder?The users must continue to login through SSH with FileZilla (i.e. no FTP solutions)Apache must still be able to access the user's folders (i.e. cannot chmod to 750)Folder containing the command line tools (/bin/bash I think) will probably have to be symlinked in the user's home folder?
i have a linux server which users connect to with SSH. my users only upload and download content from their /home folder.
Basicly, I want them to be limited to see and use only their home folder.
I read that it might not be a good idea to do so, since they nead read premissions to run programs and scripts, but again: they are only downloadinguploading content to their home dir.
How can I do it?
Im using squid proxy server..i want to limit bandwidth for single user using squid proxy.
View 6 Replies View RelatedIm new to linux and would like help or to be taught. My question is how do i limit users to their own directory for an example User andrew /home/andrew cant acess root or usr
View 10 Replies View RelatedI ran into a user today that indicated that their company only allows them to log in through a terminal session once (no multiple logins). On second try their login window terminates. They are using putty.Is this being accomplished through PAM or sshd ( or some other method)?
View 1 Replies View RelatedIs it possible to limit each user so that only one can connect via each username for ssh/sftp? I work with a small company where there aren't really enough of us to justify using a revision control system, but we don't want to accidentally step on each other's toes, so we'd like to try simply preventing more than one person from accessing a given domain at once.
View 15 Replies View RelatedI'd like to limit login attempts for specific user. I've found information in manpages: [URL]but I'm not sure if this '@' is purposly there, so would be that correct?
Code:
aparaho - maxlogins 4
or
Code:
@aparaho - maxlogins 4
Maybe '@' is a group syntax? I'm confused.
What happens after 4 failed loggins? Is it enough to restart system to get another login attempts?
Are there any other values that it is reasonable to limit for safety reasons?
I am currently in a project to set up an LTSP server with 10 thin clients. I am using Ubuntu 9.10 (Karmic).
Installing server and booting clients are working fine. Now, according to the need, I have to restrict user session numbers and allow resuming previous user session.
I have achieved to do the first one, but still could not able to setup the second one. As per requirement, if some thin can have power failure, the same session should be restored back. I am confused here, if I need to focus on saving xsessions or saving gnome sessions. I am looking for a concrete solution as I am running out of time.
I am newbie for Linux I want to script for bandwidth Limite per user MAC based also how can i add user MAC and where to add? I want per user 16Kbps each user.
View 1 Replies View RelatedI have a webserver with a few users on and i wonder how i can limit the bandwith usage for each user on my server ?
View 1 Replies View RelatedI am a user of a cluster. I don't want root to see/copy files from my user account(obviously). Is that possible to limit the access of root to users account?
View 14 Replies View RelatedHow can i limit user to their mailbox in specific size.
View 2 Replies View RelatedI running Squid 2.7. I using NCSA veryfication so only registered users may use proxy server. I want to allow only 1 connection to proxy for 1 user. Why not per ip ? Alot of users have dynamic IP's and i want to avoid password sharing beetween users. Any idea how to do it in squid ? Mb other autentyfication system connected to squid granting access to proxy server ?
View 3 Replies View Relatedfor create an user I put:
useradd username
passwd username
I need to add another user besides the one set up during the installation procedure but I also need to limit all users to use only their own /home/user directory.
View 4 Replies View RelatedI'm trying to determine how to limit a specific user so that they are confined within their home. I'm also trying to figure out how to prevent a specific user from walking up to the computer and allowing them to log in, but still allow SSH. Basically I'm trying to provide an account with very limited access to the machine.
View 3 Replies View Relatedrecently i rent a xen vps intended to setup a PPTPD vpn server for me and my friends. so we can by-pass the great firewall in china and get back on ....., facebook and stuff. i have already setup the server and i can connect to it without any problem. but i still want to do some further configuration the server:
1. i want to limit the bandwidth to 400k/s per connection.
2. i also want to limit the max connection per user a/c
i have some thoughts on the 2nd requirement. in the user configuration file of /etc/ppp/chap-secret, you can specify the range of ip the user can get, does it limit the max connection per user a/c? or they can connect anyway, just every now and then a box pop up says conflict in IP address?
Last weekend i have increased the open file size (ulimit -n) for the application user id i have update the limits.conf file with necessary inputs restarted the service and the server as well, when i check the ulimit value for the specific user by switching user from other user it shows the new value (10240) but if i login directly using the application id the ulimit value shows as 1024 which one is the default one.
View 6 Replies View RelatedWe recently had a serious loss of data because of SSHFS mounting. A user in our group mounted the entire home directory of our server (/home). This was so they could easily move between user folders to read/write data from other people involved in the same project. They then deleted several folders that were not in there home directory.
Now I know this is a bad idea and that there should be a dedicated "projects" folder where everyone collaborates and does their stuff. Such a folder/system exits but I can't make them use it. My question: Is there anyway to configure SSHFS such that the only thing the user's can mount is their home directory? Obviously this won't fix the problem since they can sym-link to other folders but I've got to start somewhere. Perhaps there's a better solution (one that doesn't involve me nagging users about proper form).
I am trying to configure linux printer Server.
Setup : Using Centos 5.3
Printer : hp 4350
At present we are using windows print server getting user name and authenticated from domain server. I need your suggestion to configure linux printer server and how to share the printer to users and how to limit the user in taking printouts.