Sometimes for peace of mind it is safer to go though an upgrade in a chroot environment first. This enables one to work out any potential issues which may arise while performing the upgrade. For this scenario I have the following configuration: * Main system is running Debian Wheezy (7.0) * System to be upgraded…
Author: a blogger
AIX chroot jail and openssh
I found an interesting fact recently. This is a combination of using AIX (confirmed on AIX 5.3 and 6.1, may affect 7.1 too) and the chroot functionality of openssh. The idea of course is to setup a user or group to be jailed to a specific directory with openssh. This can force them to use…
using netcat to transfer files between servers
If you wish to avoid the overhead of the ssh encryption algorithm you can use netcat to transfer the files. Be warned, that this is plain text, so you should only use this on a trusted network (or with non-sensitive data). On target: “nc -l 4000 | tar xvf -” On source: “tar -cf -…