To send a SYN packet to a computer on a network, use this command. nmap -sS -v 192.168.1.10nmap -sS -v 192.168.1.10 If you want to send SYN packets to a range of IP addresses, this is the command to use. nmap -sS -v 192.168.1.10-100nmap -sS -v 192.168.1.10-100 This will send SYN packets to the IP … Read more
The Windows 10 Powershell command prompt has a cmdlet named Invoke-WebRequest, this allows a user to download a link using Powershell. This will download a web link with a very fast transfer rate. Making this a very good way to retrieve a web link. Below is an example downloading a link from kernel.org. I am … Read more
I have upgraded my website with an SSL certificate. If there are any problems experienced, please let me know.
The Windows Problem Steps Recorder can have issues with missing screenshots when you are attempting to record steps to document a process on Windows. The Imago steps recorder, available here: http://www.softsea.com/download/Imago-Recorder.html is a good alternative. This only creates a folder full of screenshots, but the area of the window clicked is highlighted. This is a … Read more
A video of the installation and use of the new Ubuntu 14.10 MATE release. This Linux distribution is very promising and looks to be a good alternative to the Linux Mint MATE distribution. See the video here: http://www.youtube.com/watch?v=KjUJPU-Wp1M.
The netstat command may be used to show the routing tables for your network connection easily. Use the netstat -r command to achieve this. iMac05:~ admin$ netstat -r Routing tables Internet: Destination Gateway Flags Refs Use Netif Expire default 172.18.31.1 UGSc 31 0 en0 127 localhost UCS 0 0 lo0 localhost localhost UH 0 … Read more
The Ubuntu Linux distribution has turned 10. This distribution of the Linux kernel and various user-space tools is the one one thing that has really spurred interest in Linux on the desktop. I just wish that you could get the newer desktops to look just like the classic Ubuntu 5.10 Gnome 2 desktop. But Unity … Read more
The new 5K iMac looks very simplistic when you take the screen out. There is one hard disk drive and one cooling fan that takes hot air away from the CPU. The main selling point of the new iMac is the 5K screen, not the Darwin UNIX based OSX operating system or the ease of … Read more
The useradd command is used to add new users on your Linux system. But it can be used for other things too. You may display the defaults for new users. jason-H55-USB3% sudo useradd -D GROUP=100 HOME=/home INACTIVE=-1 EXPIRE= SHELL=/bin/sh SKEL=/etc/skel CREATE_MAIL_SPOOL=nojason-H55-USB3% sudo useradd -D GROUP=100 HOME=/home INACTIVE=-1 EXPIRE= SHELL=/bin/sh SKEL=/etc/skel CREATE_MAIL_SPOOL=no Use the -s parameter … Read more
To remove a package in Ubuntu, use the sudo apt-get remove command. This will uninstall the package. jason-H55-USB3 [mc] ~ 14-10-18 8:47PM jason-H55-USB3% sudo apt-get remove linphone Reading package lists… Done Building dependency tree Reading state information… Done The following packages were automatically installed and are no longer required: libexosip2-10 liblinphone5 libmediastreamer-base3 libortp9 libosip2-10 libupnp6 … Read more
The route command on Linux will show the kernel routing table, this is very useful as in my case, when you are using a VPN and you need to see the routing table. This is an example, I am viewing the routing table on my Ubuntu 14.04 machine running OpenVPN. jason-H55-USB3 [route -v] ~ 14-10-17 … Read more
Using the shellshock bash bug on an iMac. iMac04:~ admin$ env VAR1=’me() {echo "hello"}\ ‘ /bin/echo "hello" helloiMac04:~ admin$ env VAR1=’me() {echo "hello"}\ ‘ /bin/echo "hello" hello Getting free hard disk space easily. iMac04:~ admin$ df -Hla Filesystem Size Used Avail Capacity iused ifree %iused Mounted on /dev/disk0s2 89G 64G 25G 73% 15757422 6089307 72% … Read more
The iperf utility is used to transfer data from one machine to another over the Internet. This is a client-server utility and is the go-to utility to test a Wide Area Network connection. To use this, type sudo apt-get install iperf. Then open port 5001 in your router and/or firewall to allow the incoming connection … Read more
The Indian space probe, Mars Orbiter Mission has reached the red planet. This is a momentous day for the struggling nation, this shows that anyone can reach into space if they have the money and the determination to achieve greatness. Mars has always been a mystery ever since the first people to see the red … Read more
The new Windows 10 preview has just been released, since I have an MSDN account I have just downloaded this and installed it in VMware. My initial impressions are very positive, the CMD window now can be resized at will just like a Linux xterm window. This is the version of Windows you will see … Read more