Tag: Networking

  • Pingability Facelift

    While I was kicking back camping in Yosemite Justin here has been ‘messing about’ with CSS on our Pingability web check and alert service.  Bringing it from my 2003 design to something a little more contemporary.  Thanks, Justin. — Pingability lets you monitor your websites pages, check that things are running OK, and alert you…

  • Failover – What happens when your VPS goes down?

    A lot of customers are realizing that having 1 single VPS is great, but if for some reason it goes down and crashes, customers are left wondering what happened. Whilst rimuhosting monitor long term excessive CPU useage, it might be an hour before we realize a VPS has had an OOM error (out of memory)…

  • Easy Peasy Linux Firewalling – iptables

    A lot of our customers have asked for firewalls, and since this is a common theme, i decided that I would help them out. Of course it can be a mission to learn how to make your own and what to do or not do, and some of the pre-made ones can be confusing. So…

  • Quick and easy iptables blocking and firewalling basics

    A customer emailed in today had noticed somebody trying to hack or crash his VPS. He tracked it down to one particular IP address but didnt know how to block him. There are several things you can do to block him, the long term solution and better option is probably using a firewall like iptables.…

  • Dallas networking improvements

    This is a heads up about some networking improvements (at Dallas) we will be making over the weekend. In Dallas we take a network feed from our upstream providers.  That feeds into our ‘core’ networking gear.  And we distribute it from that core gear to the cabinets we operate in Dallas.  The core gear is…

  • Evading Webapp Vulnerability Scans

    Most attackers aren’t after your digital property or information stored on your server.  They’re mostly after your server for its resources to send spam, host phishing sites or launch attacks against other servers.  So unless you’re running a high profile site or have managed to anger a malcontent, your server likely isn’t going to be…

  • Is your VPS slow to login at all? Applications not running so fast?

    Often we will get customers emailing in saying that things are just running ‘slow’. Often when we login the first thing we notice is after the password has gone through it just hangs for a fair while before login. This is usually a sign that its trying to do a reverse DNS lookup and failing.…

  • We’re a Team

    We see lots of different problems every day as Liz noted the other day.  It’s really quite varied work that we do and you can go from resetting a password one minute to setting up load balanced proxy servers the next.  There’s always a fun and challenging problem right around the corner. The most important…

  • Domain Name Confusion

    This is something we see time and time again.  It is fair to say, unless you have had a bit of experience with it, can be a bit confusing. So here is a breakdown of the domain name components.. Registrar This is the business you pay a yearly fee to register your domain name.  i.e.…

  • Themed days in support

    I notice that we seem to have waves of support in various ways. One day we will start our shift and be totally overloaded the entire day, so busy that we end up doing a little extra after hours (posting this blog whilst cooking dinner today!). Other days its pretty dull so we play table…