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Monthly Archives: April 2008
← Older posts Newer posts →Securely Wipe a File with DD
Sometimes we have sensitive data that we want to get rid of. Since deleting a file doesn’t actually prevent it from being recovered we need to do some extra steps to ensure that it can’t be recovered. In this post … Continue reading
Posted in FreeBSD, Linux, Security | 3 CommentsFinding a Computer’s MAC Address on the Network
Sometimes we need to know the MAC address of a specific computer for multiple reasons. For example, I needed to know the MAC address of one of my computers so I could tell the router to assign a specific IP … Continue reading
Posted in Security | Comments OffWeekend Link Roundup: Week 4
Computer viruses hit one million – Apparently Symantec just published a report that says their are now over a million known computer viruses. This is funny since I can’t really even remember that last time I have seen/had one. So … Continue reading
Posted in Links | Comments OffCrack Windows XP and Vista Passwords in Seconds
Back in the day there used to be a program called lophcrack that was fairly good at cracking Windows passwords. Fortunately it wasn’t very effective for cracking strong passwords. Today I ran a newer cracking program on my computer called, … Continue reading
Posted in Security | 3 CommentsUse Rsync for Daily, Weekly and Full Monthly Backups
Today, we will be using rsync to make daily, weekly, incremental backups and then a full compressed/archived backup once a month. We will then use cron to automate the process. Lets face it us humans get lazy sometimes and most … Continue reading
Posted in FreeBSD, Howto, Linux | 14 CommentsDuplicating a CD with DD
Want to make an exact copy of a CD without installing k3b or some other burning software? You can do it in Linux/Freebsd with one line of code using dd. The nice thing about dd is that it will make … Continue reading
Posted in FreeBSD, Howto, Links | Comments OffWiping a Hard Drive with DD
A common assumption is that deleting or formatting a hard drive will be enough but in fact the data is still recoverable. In fact is fairly trivial and the process is quite easy to restore them. For this reason security … Continue reading
Posted in Howto, Security | 4 CommentsWeekend Link Roundup: Week 3
Linux-Unix cheat sheets – The ultimate collection – Largest collection of linux commands and cheat sheets that I have come across. FreeBSD Information and Tips – This is a few nuggets of gold. Worth checking out. Open Flash Chart – … Continue reading
Posted in Links | Comments Off← Older posts Newer posts →