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Tag Archives: CLI

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Information Security

capinfos : Backtrack 5: Non Menu Items: CLI Commands: capinfos

SecurityBy alexJanuary 31, 2013Leave a comment

Ever located an old capture file and you weren’t sure what was in it or needed to grab some quick statistics about another capture file? What about needed to run statistics on multiple capture files and present them via a database or a spreadsheet? Well if you have ever run into any of these scenarios…

Technology Insights

cut – Represent A Tab As The Delimiter With Linux cut Command

InsightsBy alexJanuary 20, 2013Leave a comment

I have been using the cut command a lot recently to shed extra data from large text files. I typically use cut with a specific delimiter by activating the -d switch and I thought that the -d switch was required. It turns out that -d is not required and by default -d actually defaults to…

Technology Insights

VNC Fatal server error: could not open default font ‘fixed’

InsightsBy alexJune 4, 2012Leave a comment

I needed to use some GUI tools recently for testing hard drives in a large RAID group on a CentOS Linux server that I only have remote access to so I decided to install VNC temporarily. The server has never had a GUI installed so I first installed the Gnome Desktop Environment, then installed VNC,…

Technology Insights

How To Find Ubuntu Version From Ubuntu Linux CLI

InsightsBy alexJune 3, 20122 Comments

Locating the Ubuntu version is easy regardless of if you need to locate the Ubuntu Linux version from the CLI or via the Ubuntu GUI. I always forget what the CLI command is so this is as much reference for myself as it is sharing with others. Below I describe how to determine Ubuntu version…

Information Security

Spoof HTTP Referer URL Using Google Chrome Spoofy Extension Or Using curl

SecurityBy alexSeptember 13, 2011Leave a comment

When testing websites it may be beneficial to spoof the referer URL. I have used these methods in the past to locate bugs in code or files that have been infected with forms of search engine click jacking. The two easiest methods that I have found are using the Google Chrome extension called Spoofy or…

Technology Insights

Automatically Delete Imported Images From iPhone To A Mac Running OSX using Image Capture’s AutoImporter

InsightsBy alexAugust 10, 2011Leave a comment

I have a specific way I like to configure how my iPhone interacts with the computer I am using such as when I take pictures on my iPhone I like for those pictures to be imported automatically to the computer when the iPhone is plugged in via USB and after the images are imported I…

Technology Errors

Postfix Error: cannot update mailbox /var/mail/user for user user. error writing message: File too large

ErrorsBy alexFebruary 26, 2011Leave a comment

Earlier while troubleshooting an error with PHP’s mail function I noticed an error in the maillog on a CentOS server. I know I have run into this error before and previously I fixed the issue by setting a larger size limit on the Postfix mailboxes. Below is information about the Postfix error in the maillog…

Technology Insights

Start DD-WRT Apache From Command Line, Enable HTTP From DDWRT CLI

InsightsBy alexFebruary 21, 2011Leave a comment

The other day while configuring a Asus RT-N16 wireless router we had installed DD-WRT software on I decided to turn off HTTP access to the web admin interface. After making this change I got pulled away to test something else and never tested it so I was surprised when I attempted to login today and…

Information Security

How To See If PPTP Clients Are Connected To pfSense Firewall

SecurityBy alexFebruary 19, 2011Leave a comment

Earlier I wanted to see if any PPTP clients were connected to an internal network through a pfSense firewall but wasn’t sure best way to do it. Turns out that outside of the pfSense command line I am not sure there is a best way so below I describe how to check for PPTP connected…

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