Browsercheck.com – check your browser security | Qualys has a free website that scans your web browser for any pending security updates. Here is the link: http://browsercheck.com The site works for Linux, Windows, and Mac OS X. On Windows, the scan will even show any pending Windows security updates that need to be applied. Here are some screenshots!
Tunnel DNS through ssh -D socks proxy | When using ssh -D to setup a socks proxy, DNS queries and DNS traffic are not sent through the ssh tunnel. However, with Firefox a config change can be made to send DNS traffic through the ssh tunnel. Here’s how it works! First, establish an ssh proxy: $ ssh -D 9000 user@host Then in Firefox,
Fast Host Discovery with nmap | The easiest way to do host discovery is with nmap. nmap of course offers a variety of ways to probe and map out detected hosts and poke at any open ports or services. But as for a quick discovery, ICMP is ideal to just get a quick assessment of online hosts. I’ll show you how!
Transmission Blocklist URL | The bittorrent client Transmission has the ability to subscribe to a P2P blocklist. There are many blocklist URLs out there. I’ll show you one that works well. The following blocklist URL is an excellent choice: Site: http://www.iblocklist.com/list.php?list=bt_level1 Example Update URL: http://list.iblocklist.com/?list=bt_level1&fileformat=p2p&archiveformat=gz In Transmission, paste this Update URL into the Preferences under Privacy. Click Update and
Perform DNS Lookups with the host command | The dig command is commonly used to make DNS queries. However, a much overlooked command is the host command. Here are some quick tips for a useful tool to add to your bag of tricks or to impress your friends. The syntax is: $ host [domain.com] When run with no options, a simple quick summary
OS X Firewall Not Stealth | By default, the OS X Lion firewall enabled and stealth actually has a few ports open, despite the System Preferences displaying no services running and no ports open. A nessus scan will reveal the following UDP ports open and broadcasting information: 5353 / UDP 123 / UDP 127 / UDP Note: Ignore port 4242 TCP
HandBrake could not find VLC or your VLC is incompatible | HandBrake could not find VLC or your VLC is incompatible (Note: 32 bit vlc is not compatible with 64 bit HandBrake and vice-versa). If you see this message, it is because VLC since version 2.0 no longer provides the libdvdcss that decodes DVDs for HandBrake. For a fix, install a copy of libdvdcss from videolan.org,
Mac Word 2011 Insert Horizontal Line | After almost 22 years of making Microsoft Office for various platforms, Microsoft has bafflingly never provided an Insert > Horizontal Line option. The ‘three dashes and enter’ trick does not work on Office for Mac 2011. However, there is indeed a way to insert a horizontal line to your Word document. I’ll show you how!
Open Source Auditing Tools | Here are various open source tools that are useful for security auditing! If you are a consultant, or an admin that just likes to be on top of his game, these are free open source tools that help audit the security level of workstations and servers in your environment. Note: These are by nature Linux-friendly