A chroot on Unix operating systems is an operation that changes the apparent root directory for the current running process and its children.

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50 views

Chrooted ssh user cannot ssh into server : broken pipe

I just tried the following to add a new user, chroot the user and give him access to the folder /home/me/public_html via sftp and ssh : ##the following command are done by root or a sudo user useradd ...
2
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0answers
20 views

where does Cron look for the default mail binary? [migrated]

I have setup Cron Jobs to run inside a Chroot Environment, depending on the User/Group; I have noticed that these cron jobs, running inside the chroot environment, fail to send any mail. Log files ...
1
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0answers
42 views

ChrootDirectory for SFTP user in virtual host directory with write permissions and SuPHP

I am trying to give a SFTP user (user2) writeable access to a virtual host directory (website) in /var/www/mywebsite under Ubuntu 12.04. I have setup sshd_config to use Chrooting so that this user ...
3
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1answer
59 views

df shows too much space on tmpfs

I have a server (SLES 11 running on a VMware hypervisor if that matters) with a tmpfs partition meant for mysql temporary tables, and I run mysql chrooted. df -h gives me strange outpupt: ...
1
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0answers
38 views

How can I get openSSL to run on my web server with a PHP5-FPM chroot?

On my web server, I changed the chroot to only have access to the root of my website's home directory as opposed to the rest of the file system, for security purposes. However, I've noticed that since ...
0
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0answers
56 views

SSH chroot solution for Mutt

We have an environment tailored for our users to log in via ssh and instead of gaining access directly to a shell, users have a script in place of a shell. The script simply launches Mutt on the ...
0
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1answer
70 views

openssh sftp chroot: two levels of access

I would like to achieve the following with OpenSSH's internal-sftp, chroot and Match directive: Users belonging to group sftpuser should have read and write access to /srv/sftp/{username} (or ...
2
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1answer
110 views

build user chroot on first login

I'm using ldap for remote user authentication and I basically need to either figure out how to: a. chroot a user on machine b from machine a via nfs,(which doesn't seem possible without mounting ...
7
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1answer
372 views

Why is chroot system call not available to non root user?

I was reading description about setuid on wikipedia http://en.wikipedia.org/wiki/Setuid I was unable to understand how chroot is related to setuid as mention in following paragraph from wikipedia ...
0
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0answers
22 views

pureftpd virtual user access

I need to create multiple virtual users to have access to a home directory of a user, even though i have set up the chroot according to documentation. Restarting ftp server: Running: ...
1
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1answer
542 views

bad ownership or modes for chroot directory component

I created the user MY_USER. Set his home dir to /var/www/RESTRICTED_DIR, which is the path he should be restricted to. Then I edited sshd_config and set: Match user MY_USER ChrootDirectory ...
0
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1answer
66 views

How to set ulimit in chroot with --userspec

I have script to create a minimal chroot (below), but I can't figure out how to get ulimit to work on the chroot'ed process: #!/bin/bash user=$1 apps="$2" cmd_to_run="$3" shift 3 ...
0
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1answer
100 views

Mininet additional veth pair between host and server

For those who don’t know - Mininet is a tool that allows for the automated creation of multiple OVS switches, chroot linux ‘containers’ as hosts and links them all together to prototype OVS powered ...
0
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2answers
53 views

SFTP Chroot Ubuntu 10.10

I'm trying to give an SFTP only access to his home directory to a user. This is the /etc/passwd line for the user: bob:x:1003:1003::/home/bob:/bin/false I edited the /etc/ssh/sshd_config file like ...
0
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1answer
40 views

Cannot get static file with chroot wordpress

I was trying to configure chroot with php-fpm and mysql. I managed to work it out, however when I try to reach files other than index.php (like css, png etc.) it keeps giving 404. However when I ...
1
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1answer
94 views

Chroot with SSH connections doesn't work

I have found How can I chroot ssh connections? and a lot of different blog articles and similar (http://undeadly.org/cgi?action=article&sid=20080220110039, ...
1
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2answers
400 views

Chrooted SFTP user - Write permission denied even for owner

On CentOS release 6.5 (Final) I created a restricted user test1 useradd -s /bin/false test1 and configured ssd_config as following Subsystem sftp internal-sftp Match User test1 ...
0
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1answer
865 views

vsftp error: 500 OOPS: child died

I installed vsftp, and then setup the config file as following: anonymous_enable=NO local_enable=YES write_enable=YES local_umask=022 chroot_local_user=NO chroot_list_enable=YES ...
0
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2answers
64 views

Nginx and chroot users - Permission denied

I use nginx 1.4.4 and I created a chrooted user. This user can only see his /home/user folder, and I created in a "www" folder. I put in my virtual host file : root /home/user/www; But I have an ...
0
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1answer
107 views

Run chroot's /etc/init.d on system startup?

So I have this dedicated server that is running Debian. I have an intense business need (client's requirement) that I also install Gentoo as a Chroot. I have successfully done so, but now, I am ...
0
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2answers
140 views

chroot: can't resolve domain names [closed]

i can't resolve domain names in chrooted environment - in the normal shell it works fine. i'm using plesk 11.5 and my chroot environment contains the following: ...
3
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1answer
1k views

SFTP: log to a separate file for chrooted user

I would like to log SFTP commands to a separate file however it works only for root but not for chrooted user: # cat /etc/ssh/sshd_config ... Subsystem sftp internal-sftp -l INFO Match Group ...
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0answers
136 views

Pure-FTPD: chroot doesn't chroot

On a Debian Wheezy machine, I've installed Pure-FTPD. As I wanted the users to be chrooted into their home directories, I took a look at the virtualchroot functionality. After a bit of configuration, ...
0
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0answers
48 views

Nginx + chroot'ed PHP-FPM using wrong path

I'm trying to setup a chroot'ed website using Nginx + PHP-FPM, but it's not working as expected (or hoped). When I open the website (example.com/webapp/), it calls ...
1
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1answer
101 views

FTP users can't see any files when chrooted

On a Debian Wheezy 64bit, I create a new user for a customer to place files into a directory. After the user is created, I take away his interactive login by replacing /bin/bash with /bin/false in ...
8
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4answers
311 views

Why running named(bind) in chroot is so important for security? Or maybe it is not ?

I'm playing with bind and started wondering why this software is for example in CentOS running in chroot. Don't misunderstood me I know what bind is and what chroot (jail) is for. But my main wonder ...
0
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0answers
86 views

Postfix Inside Minimal Chroot Environment. It Complains About Nobody User

I'm trying to make the most minimal chroot environment to run local postfix in my network. I have done this far: created chroot and setup 4 standard mounts (proc, sys, dev, dev/pts) installed ...
2
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1answer
424 views

nginx+php-fpm(chroot). No input file specifed

OS: Centos PHP: 5.5.6 Nginx: 1.4.4 Nginx conf server { listen 80; server_name example.ltd; root /srv/example.ltd/www; index index.php; access_log /srv/example.ltd/logs/nginx-main.log main; ...
1
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1answer
202 views

Chroot issue, broken pipe

I need to give access to a developer to our server vía ssh. I hosted his web on /home/miuser and some other web applications in /home/... I have this config in my Subsystem sftp internal-sftp Match ...
0
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2answers
91 views

force group assignment in chrooted sftp environment

I've got the following setting: There are several users /home/user1, /home/user2, and so on. Additionally there is a user /home/sftp-all. The folder /home/sftp-all/shared is mounted in every other ...
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0answers
92 views

Built in chroot jail RHEL 5 returns No such file or directory

I need to create a chroot jail on my RHEL5 production server to allow a specific user to work with the less right possible, but with GIT. Here is my system configuration : RHEL 5 : Release 5.10 ...
0
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1answer
77 views

How to create chroot jail with ability to change some system settings

How to properly create chroot jail (on Ubuntu, or some some other Linux if not applicable) to make user able to edit system settings (eg. with ifconfig) and be able to communicate with external ...
0
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1answer
117 views

Set Users as chrooted for sftp, but allow user to login in SSH

I have setup a ssh server on debian 7, to use sftp connection. I chrooted some user, with this config: Match Group sftpusers ChrootDirectory /sftp/%u ForceCommand internal-sftp But if i ...
2
votes
1answer
628 views

Why use lxc instead of chroot?

One ubuntu server hosts 3 apps all on separate domains. Each app has its own developers. App developers belong to linux "sftp" group. chroot allows password sftp access for each app developer. ...
0
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1answer
145 views

Do any Unix/Linux FTP daemons allow users to be “jailed” without using chroot?

When setting up an FTP account for a specific purpose - e.g. as a drop-point for sharing data files - it seems sensible to give the user access only to the particular directory, and no view of a wider ...
0
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1answer
638 views

CentOS 6 restrict user ssh access to his home folder

I am trying to restrict a newly added user to his homedir /home/username. Don't want him to be able to cd out of it. I have this my sshd_config: Match User username ChrootDirectory %h ...
0
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1answer
74 views

Centos6.4: User home directory for sftp

Currently setting up a Centos6.4 box and are wanting to jail sftp users upon login. I've been following the notes here http://www.thisisnotsupported.com/sftp-chrootjail-on-centos6. But I have one ...
0
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1answer
105 views

Is it worth to use chroot when running web applications?

My setup: In production I'm using one virtual server per one web application shard. Shards are behind load balancer. In backstage we run web application + DB on a single virtual server. The ...
0
votes
1answer
329 views

Apache 2.2.4: problems chroot with modsecurity

I've been installed mod_security. If i simply include in the httpd the configuration files of mod_security, it starts normally. Indeed, if i try to add SecChrootDir /mnt/chr , httpd will start, but at ...
0
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0answers
73 views

PHP-FPM is not working as expected

I am using Debian Squeeze and set up PHP-FPM with fastcgi. I have several virtual hosts defined on the same host. I defined chroot for each pool configuration but somehow it is possible to change ...
1
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1answer
221 views

reseting password not working in KVM guest

I lost the root password for a guest system. I mounted the guest system and changed it to single user mode. Then I used virsh console to access the guest system, which was now in single user mode, ...
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votes
1answer
45 views

Process still running from a deleted chroot? [closed]

so I come to you with a somewhat interesting problem. I had a chroot running that had an entire lamp server installed and running on it. I tried to purge and remove the lamp server but messed up ...
2
votes
2answers
496 views

How to setup a public rsync and sftp server

I want to setup a public storage server which allows sftp and rsync (through ssh). I've got it working with a chroot jail and rssh. When the user connects to the server with sftp he can read all the ...
0
votes
1answer
774 views

Apache + PHP-FPM + chroot results “File not found.” error

I want to set chroot to the DocumentRoot using PHP-FPM pools' chroot attribute. With the settings below, whatever I do I get only a "File not found." error: /etc/php5/fpm/pool.d/example.conf ...
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2answers
61 views

SSH stopped working for no reason

Please help. Everything was working fine. How can I connect to the command line now? Configuration Amazon EC2 server Ubuntu & Apache2 Only one user (root - not real name) has SSH access, ...
0
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1answer
279 views

How to use abstract names of unix domain sockets with fastcgi in nginx?

I tried some perl examples of unix domain sockets using abstract names: Created a socket starting with a null character: my $socket_path = "\0wibble"; using netstat -nlp I can see the socket: unix ...
0
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1answer
150 views

PXE server - ubuntu setting username/password later - is it possible?

so I am writing a program in mainly C/C++, though I think this question fits under server fault as it is related to the Linux distro Ubuntu. So what I am looking for is a way (possibly hackerish-way) ...
0
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1answer
2k views

vsftpd: refusing to run with writable root inside chroot

I want to setup a anonymous only ftp server (able to upload files). Here is my config file: listen=YES anonymous_enable=YES anon_root=/var/www/ftp local_enable=YES write_enable=YESr. ...
1
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0answers
128 views

Mounting /var/www for File recovery

I'm in the process of recovering my server's files in a "Rescue" mode. Its a Ubuntu 12.04 with 2x3TB in RAID1. The instructions were to SSH into the server in "Rescue" mode, mount the partitions, ...
5
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4answers
756 views

Difference between chroot and jail

I read this tutorial - https://help.ubuntu.com/community/BasicChroot - and what I understood is that, chroot is the process of changing the / while the new restricted environment created is the ...