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Tag Archives: firewall

July, 2010

  • 26 July

    Server Security Tips

    1. Do not allow direct root/administrator login 2. Make sure passwords are secure and changed regularly (by force if necessary) 3. Use a network firewall, such as APF 4. Use an application firewall, such as ModSecurity 5. Chroot all non-root users to keep them out of system directories 6. Use …

  • 26 July

    Server Networking Tips

    Over the past year, we have covered many networking tips for servers. Here is a brief summary of the most important networking tips you should keep in mind for your dedicated server. 1. Use both a router firewall and a software firewall 2. Your name servers should be hosted on …

April, 2010

  • 22 April

    Is a router firewall enough to protect my server?

    Many web hosting providers and dedicated server data centers will provide router-level firewalls for their customers, mainly as a precaution to protect their infrastructure. A bot, virus, or other form of malware that gets into a single network can spread from server-to-server very quickly. On some home networks, a router …

November, 2009

  • 24 November

    How to open and close ports with iptables

    Question: How do I open and close ports with an iptables firewall setup? Answer: You can easily open ports on a dedicated server with these simply commands. Depending on whether you need to open a UDP or TCP port, use one or both of the following: iptables -A INUPT -p …

  • 12 November

    Advanced Policy Firewall (APF)

    Few issues with dedicated servers are more important than security, and no security software is overlooked more than firewalls. Most people expect firewalls to work the way they want them to without any effort. While that is impossible, there is a free software firewall solution available that makes installation, setup, …

June, 2009

  • 8 June

    China to Install "Green Dam" Content Filter on New Computers

    The Chinese government has issued an order requiring all computers sold in China to have a government-sanctioned content filter installed. Known as “Green Dam,” the software filters obscene images and words. Computer makes must preinstall it on all computers sold in the country starting July 1. China is notorious for …