I have been using Hamachi since first hearing about it on Security Now, over 10 years ago. Hamachi is a hosted virtual private network solution that can create links with devices that are behind NAT firewalls. Hamachi is able to do so by using server-assisted NAT traversal. I mostly use it to access virtual machines from outside of …
Continue reading "Getting Hamachi working with the Raspberry Pi 3"Recently, I was poking around on Shodan (as I do when I am bored) and I stumbled across an interesting query. If you search for “Default: admin/1234”, you get over 14,000 devices that are broadcasting their own default username and password. The devices appear to be Edimax routers. I reached out to both EmbedThis and Edimax to ask them about this. …
Continue reading "Why are the default credentials in the realm attribute?"
Everybody has been in this situation (Well, at least I have). You are sitting in a coffeeshop and you need to connect your phone to the WiFi. You have connected your laptop to the WiFi before but you can not remember the password. You could get up and ask the barista for the password but …
Continue reading "How to recover a saved WiFi password in OS X"This is one of the first questions I had when I got this new laptop. It’s fairly simple (even if it isn’t all too memorable). Command-Shift-3: Capture the entire screen and save it to a file on the desktop Command-Shift-4 and then select an area: Capture a defined area of the screen and save it …
Continue reading "How to take screenshots in OS X"There are folders where you can place your script. For hourly tasks: /etc/cron.hourly For daily tasks: /etc/cron.daily For weekly tasks: /etc/cron.weekly For monthly tasks: /etc/cron.monthly
Continue reading "How do I schedule a task to run daily/weekly/monthly on Ubuntu?"This is a pretty good trick to know. It will grab the rendered version of your website, even if the original is database-driven. wget -mk http://steinbring.net
Continue reading "How to create a complete mirror of a website, using wget"So, you want to run a web server and you are not the only person who will have the ability to upload files to it? You might want to think about installing an antivirus scanner. If you are running Linux (like I am), Clam AntiVirus is a good option. So, how do you install it? …
Continue reading "How do I protect my Linux web server from viruses?"/sbin/ifconfig
Continue reading "How do I check my IP address in linux?"
So, you have installed a fresh copy of Ubuntu and you need to start setting things up. What is the first priority? You need to create new user accounts. To add a new account, you can use useradd. sudo useradd -d [user’s home folder] -m [username] The above command creates the user’s account and their …
Continue reading "How to add a new user in Ubuntu Linux"