Vodaphone USB Broadband on Linux

What you will need: usb-modeswitch-2.0.1.tar.bz2 usb_modeswitch-data libusb-1.x Right after you install those files on your linux box, append these three lines in a terminal: usb_modeswitch -WD -v 12d1 -p 1526 -n -M 555342437f0000000002000080000a11062000000000000100000000000000 -I -w 500 modprobe option echo "12d1 14cf" > /sys/bus/usb-serial/drivers/option1/new_id Open your network manager window, select Mobile Broadband, create a new connection and for connection settings leave them as default, just set the password to 1234. Plug-in your Vodafone...

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Disable ICMP ping responces on your linux box

Depends on the distribution you use you may be able to disable the ping responce in your box to add some complexity for the attackers or the 'bad guys'. In the video below i am going to show you how to append such configuration in your linux distro. Disable ping reply echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_all Enable ping reply echo 0 > /proc/sys/net/ipv4/icmp_echo_ignore_all To make this permanent set the following into /etc/sysctl.conf net.ipv4.icmp_echo_ignore_all = 1 ICMP Message Types You can find more about ICMP here...

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Tips on hardening an enterprise server system

Hardening a system is the process of making it more secure from the default configuration; it is a very important for servers. Before some time, security wasn't a primary concern, but with all the viruses and attacks on servers today, administrators need to consider about everything. Keep the system updated The risk of not being up to date is huge in the world we live on. Hundreds of vulnerabilities are being discovered day by day by security experts you should be aware of. It doesn't matter if your anti-virus is special or your firewall is wicked sick,...

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Enable TCP SYN cookie protection on your linux server

Normally when a client attempts to start a TCP connection to a server, the client and server exchange a series of messages which normally runs like this: The client requests a connection by sending a SYN (synchronize) message to the server. The server acknowledges this request by sending SYN-ACK back to the client. The client responds with an ACK, and the connection is established. This is called the TCP three-way handshake, and is the foundation for every connection established using...

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