A chroot on Unix operating systems is an operation that changes the apparent root directory for the current running process and its children. A program that is run in such a modified environment cannot name (and therefore normally not access) files outside the designated directory tree.
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Servers running from chrooted Ubuntu on HP TouchPad? [closed]
The problem: servers appear to be broken inside my Ubuntu chroot. No matter what kind of server I try to run, they all seem unresponsive (VLC server won't respond to client, mkRemote doesn't move the ...
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1answer
506 views
Allowing access to single folder in centos
I have a java application in /usr/local that keeps writing to a text file on a daily basis. I need a particular user to be able to read this file. What is the best way to do that? I have recently read ...
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vote
1answer
401 views
Ubuntu 11.10 SFTP chroot jail problem
I am creating a SFTP server with Chroot Jail. The problem is user cannot log into the home directory. I need to keep ChrootDirectory value to one directory above the user's home directory ...
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1answer
255 views
Does OpenSSH_5.9p1 support Chrooted SSH?
Lately i upgraded my SSH server with OpenSSH_5.9p1 and tried to setup chrooted SFTP/SSH. So far i managed to setup chrooted access only for SFTP using new feature of openssh5.9p1:
Match User ...
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1answer
648 views
Is there an ARM repository for Arch Linux?
I'm trying to create a chroot for my rooted android phone. I want to do this with the arch_bootstrap.sh script found on the wiki but I can't find an ARM repository.
My PC is x86_64 Arch Linux and my ...
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2answers
451 views
Mount points in a chroot
I have some device (say /dev/sda1) mounted at /home/user1. I also have a full Linux system under /tmp/chroot, and the directory /tmp/chroot/home contains only one directory named user2.
If I chroot ...
2
votes
1answer
293 views
Debian unstable chroot security issues
This page describes how you can use the debootstrap utility to install a base Debian unstable/sid system on an existing Linux machine. The new install is accessible using chroot.
When doing this, ...
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1answer
837 views
Chroot debian squeeze for shell access
A user requires shell access to an Ubuntu server from the WAN side. There are many shell accounts with simple passwords. So shell port (port 22) is blocked in the firewall. For my WAN side user I am ...
2
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1answer
197 views
How to add another domain to my chrooted named server
Firstly I successfully have a domain working in a chroot named. There are files in /var/named/chroot/var/named called mydomain.com.db and named.local and named.root.
Also in /var/named/chroot/etc ...
2
votes
1answer
3k views
Chrooted SFTP with full access to SSH stopped working (Debian)
I've got a home server on Debian 6 for backups. I'd like to setup chrooted SFTP environment with SSH access for some users (only for my knowledge, there are two users now). It almost works or rather ...
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2answers
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How do I tell I'm running in a chroot?
I have a unix installation that's supposed to be usable both as a chroot and as a standalone system. If it's running as a chroot, I don't want to run any service (cron, inetd, and so on), because they ...
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1answer
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deleting a 'file' under /proc or /dev
I am using a cowdancer/debootstrap setup to generate a chroot.
Of course, as I iterate, I generate some chroot configurations that are bad.
I have found myself in an awkward situation where I have ...
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2answers
4k views
Getting “Not found” message when running a 32-bit binary on a 64-bit system
I have currently a strange problem on debian (wheezy/amd64).
I have created a chroot to install a server (i can't give any more detail about it, sorry). Let's call its path /chr_path/.
To make things ...
4
votes
3answers
4k views
What to do to run GUI Java app in chrooted environment?
In my case Java app is JDownloader. I prepared chroot environment as explained here:
http://www.0x61.com/forum/post5240333.html#p5240333
and here:
http://interreality.org/~reed/java-chroot.html
...
17
votes
3answers
5k views
Restricting an SSH/SCP/SFTP user to a directory
Is there a simple way to restrict an SCP/SFTP user to a directory? All methods that I've come across require me to set a chroot jail up by copying binaries, but I don't think that should be necessary.
...
3
votes
1answer
373 views
How to disable certain system calls for a given user?
I am creating a web app similar to codepad and for each run-action my app copies a directory (/home/radeks/voidptr/private/chroot-root) to /tmp/voidptr/[random-id]/chroot-root. This chroot directory ...
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2answers
278 views
Swap root at runtime
I am developing an embedded Linux system. The system is usually installed by creating a ISO file which is written to a USB stick the board can boot from.
To make the installation possible to do ...
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2answers
832 views
Providing /bin and /lib inside a chroot jail
I need to be able to provide the /bin and /lib directories inside a chroot jail so that programs can dynamically link properly.
Is there a way to accomplish this without making a copy of the /bin and ...
2
votes
1answer
322 views
Are there any differences between mounting a /proc filesystem inside a chroot compared to mounting it from the outside?
Compare the following:
mount -t proc none ./my_chroot/proc
and:
chroot ./mychroot mount -t proc none /proc
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2answers
2k views
What to use to harden Linux box? Apparmor, SELinux, grsecurity, SMACK, chroot?
I am planning to go back to Linux as a Desktop machine.
I would like to make it more secure. And try a few hardening techniques, especially since I plan to get my own server.
What would be a good, ...
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votes
3answers
635 views
Is there a linux vfs tool that allows bind a directory in different location (like mount --bind) in user space?
For a user process, I want to mount a directory in other location but in user space without root privilieges. Something like mount --bind /origin /dest, but with a vfs wrapper. Like a usermode ...
6
votes
4answers
576 views
Is there a pbuilder-like environment for RedHat?
I would like to know if is there any utility like Debian's pbuilder, to build RPM packages on RedHat using a clean environment (chroot).
I've found mach which has support for something like this but ...
16
votes
3answers
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chroot “jail” - what is it and how do I use it?
I have heard/read a lot about the chroot jail under linux but have never yet used it (I use Fedora day-to-day), so what is a chroot "jail"? When and why might I use it/not use it and is there anything ...
