Categories Archives: Linux

GL-MT300A tricks – WIFI Client Bridge

In a search to replace several NetGear WNCE2001 devices which had over time, proven themselves to be so unreliable they would literally kill entire wireless AND wired networks by randomly hijacking DHCP. I tried many devices — some either couldn’t bridge at all, others ‘worked’ but had such terrible range or connection quality they were […]

OpenVPN Slow Downloads on Windows clients

Recently I upgraded my remote office connection to 100Mbps (cable) and spent almost a month dealing with slow downloads over an openVPN client connection. Uploads were fine (maxing out the pipe) but downloads were 12-20 Mbps at best and fluctuating like crazy. TCP client mode actually performed better than UDP so I knew something was […]

Debian PXE boot image from scratch

After facing issue after issue with Idera/R1soft’s PXE and CD-ROM boot media — specifically, ancient kernels which are unable to obtain network connectivity on modern hardware, I decided to roll my own PXE boot image including the R1soft agent and a few other tools with the latest Debian stable. It turned out to be easier […]

Find symlinks on Cpanel

Find all possible root symlinks (leftover from attempted exploits) and save them as a list ‘symlinks.txt’. ls /var/cpanel/users | grep -v “\`\|\.\|cpanel\|root\|mysql\|nobody” | \ while read CPUSER; do find /home/$CPUSER -type l -not \( -lname “/home/$CPUSER/*” \ -o -lname “*rvsitebuilder*” -o -lname “[^/]*” -o -lname “/usr/local/apache/domlogs/*” \ -o -lname “/usr/local/urchin/*” \) ; done \ > […]

Simple Monitoring with Email Alerts that works on LSI MegaRAID and Adaptec

This tool will poll the output of command(s) or URL(s), and send email alerts if the output changes, contains (or not contains) certain text, or becomes unavailable. It’s a light weight, reliable monitoring replacement for the pile of garbage most RAID vendors include with their cards. Complex excludes and finds can be specified as Perl […]