101TECH » Sys Admin

How to configure IPFW on Snow Leopard

matt — Fri, 30 Dec 2011 16:51:59 +0000

Snow Leopard’s default, GUI based firewall is convenient, but not very configurable. You can block or allow certain applications, but you can’t filter at the port or host level, can’t NAT, etc… Fortunately, OS X 10.6 and earlier comes with …

Setup DNS on macos from command line

moti — Fri, 30 Dec 2011 15:52:54 +0000

If you get to remotely manage mac users over ssh, the networksetup command is a great tool. The full manual is here : https://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages/man8/networksetup.8.html Here’s how to setup a dns server: 1. find the interface name networksetup -listnetworkserviceorder 2. your …

Join multiple lines together using TR

moti — Thu, 01 Dec 2011 01:05:34 +0000

tr “\\n” “,”

APG ( automated password generator ) runs slow on CentOS

moti — Tue, 01 Nov 2011 18:21:16 +0000

I use apg to generate random password all the time. On a new vpn server I built, apg was taking a long time to generate a pass, I traced it back to “not enough entropy” You can see how much …

OCSinventory install on FreeBSD – Apache-DBI error

moti — Fri, 15 Oct 2010 20:13:41 +0000

some ports depend on apache 1.3 and die with error : Error from bsd.apache.mk. apache20 is installed (or APACHE_PORT is defined) and port requires 1.3. solution : make install WITH_MODPERL2=yes