Slip, Slipping Away
By Ian Scott
“The true criminals will go and use random Wi-Fi nodes where you can get anonymous access,” he said. “You haven’t done anything but increase surveillance of law-abiding citizens.”
~ Jim Harper, Cato Institute, as reported by CNET
What price for loss of freedom and expectation of privacy are you willing to pay? While some suggest that if you’re a law abiding person, you have nothing to fear, others say that is not the point. Do you really want to have records of on-line chats, emails you’ve sent or received, and websites you’ve browsed, available for up to two years and available at the whim of law enforcement officers who claim to require access to such data? Read the rest of this entry »
Topics: Personal Security, Privacy |
Iptables And Remote Port 25 Blocking
By Ian Scott
With many ISP’s today blocking remote port 25 connections for what they think is spam prevention, many users are complaining that they are unable to send through the email server they wish to send through.
If this is something that has happened to you, here’s something you might want to refer your ISP to, or if it is your own mail server, a quick trick to allow yourself to connect to an remote SMTP server without opening up new ports on the SMTP server. Read the rest of this entry »
Topics: Firewalls |
Troubleshooting Linux Firewalls - Book Review
By Ian Scott
I’ve been wanting to increase my knowledge of iptables and netfilter, the firewall system that comes with most Linux distributions. I knew some of the basics, but I decided it was time for me to increase my knowledge.
So I went looking for a book, I came across Troubleshooting Linux Firewalls, and at first, the title put me off. I wasn’t sure I was ready for something on troubleshooting. However, the description of the book intrigued me so I purchased it.
Read the rest of this entry »
Topics: Computer Security, Firewalls |
How To Use sftp And Automation
By Ian Scott
The other day, an associate of mine was explaining how they were automating the backing up of MySQL databases to a back up server via an automated FTP script. For those not familiar, in order to backup MySQL databases the tables MySQL need to be locked otherwise you risk corrupting the backup version. Read the rest of this entry »
Topics: Computer Security |
TCP Wrappers - It’s Not So Hard
By Ian Scott
Back in the “olden days,” before TCP Wrappers were ever thought of, the Eindhoven University of Technology in The Netherlands was experiencing some major instrusion problems on their systems. Somehow, a cracker was gaining access to their systems and for whatever reason, deleting the entire file system of the servers they managed to access. Read the rest of this entry »
Topics: Computer Security |
Counter Hack - Book Review
By Ian Scott
So you want to learn more about computer security but don’t know where to start? Even though Ed Skoudis’ book, Counter Hack - A Step-by Step Guide to Computer Attacks and Effective Defences was published in 2002, this book should be on top of your reading list. Read the rest of this entry »
Topics: Computer Security |
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