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Tag Archives: dns

July, 2010

  • 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 …

June, 2010

  • 16 June

    How to Restart Services on a Windows Server

    Services are memory resident programs that normally run constantly, as long as your server is on. Programs like your web server, database server, DNS system, and others are all services that start at boot time and continuing running at all times. Whenever you change configuration for a service or need …

  • 7 June

    5 Indispensable DNS Tools

    1. Traceroute – With this quick tool, you can trace the network path from your server to any destination, including your house. If you ever have connection problems with your website or server, this tool may give you clues. 2. IP Whois – Find out what a website’s true IP …

May, 2010

  • 17 May

    When You Are Accused of Spamming…

    Question: My web host has accused me of being a spammer and has suspended my account. How do I prove I am not a spammer? Answer: Usually, you will only be accused of spamming in one of three situations: (1) you actually are a spammer, (2) your account is hosted …

April, 2010

  • 21 April

    Setting Time to Live for your DNS records

    Time to Live or TTL refers to when the nameserver checks with the authoritative nameserver to get the latest record. I caches that record for however long the TTL specifies before checking again. The lower the number, the sooner records will be updated. Many nameservers are set to a default …

March, 2010

  • 31 March

    How to handle known spammers

    When you are faced with relentless spamming, it is a good idea to use tools that go beyond simple filtering. One way to stop SPAM is to develop some type of proxy that stops known spammers before the messages reach the mail server. Another is to rely on DNS black …

  • 29 March

    Speed up web browsing with OpenDNS

    Looking to speed up your web browsing? Working from a huge cache of web requests made by other users, OpenDNS is a free DNS service that is considerably faster than the name servers provided by your ISP. OpenDNS provides a lot more than just speed, however. Benefits include phishing and …

  • 26 March

    Nameserver subnet warnings

    Question: What does the following error mean: WARNING: Not all of your nameservers are in different subnets Answer: If you are receiving this error, it means that the nameservers for your domain are both originating from the same server (or two servers within the same subnet). Generally speaking, this is …

  • 12 March

    Rod Beckstrom draws criticism over DNS security comment

    While speaking at an ICANN international meeting in Nairobi this week, Rod Beckstrom criticized the security of DNS, saying it “can stop any time.” Furthermore, he went on to state: The domain name system is under attack today as it has never been before. I have personally consulted with over …

  • 11 March

    The nsupdate for dynamic DNS

    Computer users with dynamic IP addresses often have to contend with the reality that their internet identity can literally change without warning. For average Internet use, this is not a problem, but if you ever need to host something from home (even a private server that only gives you password …