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“Sad SACK” network protection
Netflix has identified several vulnerabilities in the TCP networking stack that affects all Linux users with un-patched kernels. The vulnerabilities have been assigned CVE-2019-11477, CVE-2019-11478 and CVE-2019-11479. All three issues have already been mitigated for all our VPS customers. The original advisory says… The vulnerabilities specifically relate to the minimum segment size (MSS) and TCP…
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NTP servers and DoS Attacks
NTP servers have been in the news over the New Year, as security sites and social media talk about potential attacks. This is important because many linux servers run ntpd to help keep their clock time correct. One of the first reports and some solutions are clearly described on litnet … In LITNET we recently…
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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)…
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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…