similar to: R in a sandbox/jail

Hello, I have a setup similar to Rweb ( http://www.math.montana.edu/Rweb/ ): I get R scripts from users and need to execute them in in a safe manner (they are executed automatically, without human inspection). I would like to limit the user's script to reading from STDIN and writing to STDOUT/ERR. Specifically, preventing any kind of interaction with the underlying operating system (files,

I have a need to have users SSH into a server where they are limited to a chroot jail (sandbox). Once they are there, they need to be able to execute 'ssh' and 'scp' to other systems. I've no problem setting up the basic chroot jail and providing basic functionality (ls, cat, less, etc). The part that is stopping me is setting it up so that that user can then 'ssh'

Hello, on 9.1-R, I highly appreciate the new jail(8) and jail.conf capabilities. Thanks for that extension! But I have one problem: If I want to stop a jail with 'jaill -r jailname', I get "umount: unmount of /.jail.jailname failed: Device busy" It seems to me that the order of fstab.jailname entries are not reverted by jail(8) when shutting down/umounting. My C skills

Hi *, I recently triggered an error when setting up a jail-host: I configured the jail(s) like evry jail I set up in the past: On the jail-hosts /etc/rc.conf: # ---- Jail-Globals ---- jail_enable="YES" # Set to NO to disable starting of any jails jail_list="ftp mx1 relay" # Space separated list of names of jails

Hello. Has anyone here ever successfully set up a jail for X apps, connecting to an external X server? I'm trying an experimental sandbox setup here. I have a jail running on an aliased IP on my local machine and X programs connect out of the jail to my local X server via an SSH tunneled TCP connection. All other packets to and from the jail are denied by the packet filter. The trouble I am

HI everyone, I have resently installed a jail environment on my freebsd box, and had some problems getting postgresql running under it. After looking a bit on various mailinglists i figured out that I needed to set jail.sysvipc_allowed to be 1 using sysctl in order to make postgresql run. However man jail gives me: jail.sysvipc_allowed This MIB entry determines whether or not

Hi, IP traffic from one jail to another jail, arrives on destination jail on lo0 having the destination jails IP as source IP. Why not the source jail's IP address? How can I filter traffic from one jail to another, using ipfw of ipf? Cheers, -- Anders.

I am currently setting up a firewall that translates my internal network over to 5 public IP addresses. The addresses are dynamically assigned, so I use ddclient to update my www.dyndns.org account. I've set up several aliases on the external interface of the firewall, and succeeded in having the internal computers use those extra public IPs. What I want to do is have 5 copies of ddclient

Hi all, Is it mandatory to add device mem to jails to enable network via the gateway? Left ezjail with FreeBSD-6.3 (and a hardware replacement of my server) and am now starting again with FreeBSD-7.1. Early this week, I upgraded from 7.0 to 7.1 (not having 'used' jails on 7.0). After creating the jail with `ezjail-admin update -i` I created a 'ports build' jail `ezjail-admin

Hi, I've been struggling with this problem for the last couple of hours and am nowhere near solving the problem. I am trying to run a tftp server in a chroot jail. Now perhaps I am being paranoid, but I would like to have it launched from within its own jail even if it supposedly does a chroot itself and runs with a parameterizable user. I downloaded the atftp-server package and tried

Hello, I have written this tiny little patch to the jail rc.d script, which allows user to set jail nice value. It doesn't change any default behaviour. Can that make it to the trees? Patch attached. -- Jan Srzednicki :: http://wrzask.pl/ "Remember, remember, the fifth of November" -- V for Vendetta -------------- next part

Hello, I have written this tiny little patch to the jail rc.d script, which allows user to set jail nice value. It doesn't change any default behaviour. Can that make it to the trees? Patch attached. -- Jan Srzednicki :: http://wrzask.pl/ "Remember, remember, the fifth of November" -- V for Vendetta -------------- next part

Dear folks, It seems that doing bind() inside a jail (whose IP address is an outside address), will result in some wierd behavior, that the actual bind is done on the outside address. For example, binding to 127.0.0.1:6666 inside a jail addressed 192.168.1.1, will finally result in a bind to 192.168.1.1:6666. With this in mind, it is possible that some formerly secure configuration fail in jail

Hi. When we don't have too many IP addresses available and we want to run for example www server inside a jail, but use the same IP address as the main system, we need to actually use an internal IP address and forward http port with firewall from external IP to jail's IP. In that way we know that if somebody breaks into out jail, he cannot run sshd server (we have keys, I know) or any

I setup a ssh chroot jail following this[1] guide. It works for my user to login, use ls and use scp which is all I really want. I do have a problem I cannot solve: when connected and navigating the filesystem, the backspace key actually moves the cursor forward and does not delete what I type. I may have found a hint from some googling that readline will read in /etc/inputrc on login but if

Hello, I have configured jail for users with sshd ftpd and auth. I started this jail on IP 127.0.0.10(there is an alias on lo0 interface), there was not any bigger problem to start it. But i have a problem with internet in this jail. I can log in to this jail through ssh or ftpd but i can't connect to the internet. I try to set up some kind of nat but it doesn't work. Can anybody help me

I'm thinking of using jails to improve security on a server I am setting up. Specifically, I would like to put Apache/PHP in a jail, but I might like to set up 2-3 different jails for different purposes. I've found several examples showing how to set the jails up. My questions involve system requirements. Assuming plenty of disk space, 1GB ram and a dual processor PIII 1.13Ghz

I have searched around the lists and Google and found this HYPERLINK "http://people.freebsd.org/~pjd/patches/jail_2004120901.patch"http://people. freebsd.org/~pjd/patches/jail_2004120901.patch I was wondering if anyone know of a multiple IP patch that works with FreeBSD 5.4 I really do not understand why this is not included in the standard jail I mean sure jail is handy for

Hi, (Sorry for the long email) As a bit of a learning exercise, I'm trying to place the icecast daemon in a chroot jail. I've been mostly sucessful: I can get icecast to serve the default stream from its jail, however I can't get multiple streams to work. I think the problem is that icecast can't resolve addresses in the jail, however I do have an etc/hosts file and

Operating system virtualization is the most effective way to utilize your system resources, jails let you setup isolated mini-systems. Jails are explains well in handbook however, from practical standpoint of view, the presented material is incomplete. The post below setup few scrips that follow handbook's 'Application of Jails' article and enhance with few missing features