Date: Sun, 23 Mar 2014 10:16:11 +0200 From: Jeff Tipton <jeff.t@mail.com> To: freebsd-questions@freebsd.org Subject: Re: jails, subnets and etc? Message-ID: <532E984B.3060209@mail.com> In-Reply-To: <532E5F05.2040207@tysdomain.com> References: <532E5F05.2040207@tysdomain.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Hello, On 03/23/2014 06:11, Littlefield, Tyler wrote: > hello all: > I'm curious if I'm doing this right, and would like some advice from > someone. > First, I created a jail with ezjails and set it's IP to 192.168.0.2, > then bound mysql to that address. > The idea is that mysql can run in its own jail while not being > accessible to the outside world. I set the gateway (defaultrouter in > the jail's rc.conf) to the IP address of my machine so the system can > access the network. Basically, you don't have to do that; you may do without the "defaultrouter" line there at all. > This is where I run into a bit of fun: I am unable to ping/telnet to > 192.168.0.2 3306, and I am unable to telnet out of the jail. So, I > have a few questions: By default, ping doesn't work with jails. If you want to enable it, you have to set the security.jail.allow_raw_sockets sysctl value to 1. But telnet should work without this setting. > 1) what needs to happen on the pf side to forward ports from x.x.x.x > (my external-facing interface), to a specific address and port on the > subnet? the idea is that I will just use pf to forward ports to > public-facing jailed services. Example destination NAT in pf.conf rdr on bge0 proto tcp from any to any port 3306 -> 192.168.0.2 (where bge0 is the device name of your external interface; replace it with your own) > 2) Do I need to do something special to get this subnet set up? What > needs to happen to get the jail and the host talking to each other? > thanks in advance, > Jail and host should talk to each other without special settings. Maybe you have some restrictions in pf? Try to flush all rules (pfctl -Fa). How did you set up the network interface in your host machine -- is it accessible to your jails? -Jeff
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?532E984B.3060209>