Network issue on UK hosted VPS

UPDATE –  GMT +2 20:35 — : Network should be up and running as usual now. If you still facing any problems please raise a support ticket at https://guru-host.eu/client/

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Our network is currently experiencing a huge DDoS attack. Engineers are identifying the traffic to nul route the IP’s concerned.

February 8, 2011 · admin · No Comments
Tags: , ,  Â· Posted in: Network issues

Nameserver issue

Problem fixed, everything should be up and running again.

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We are currently experiencing a nameserver issue which affect our main web site and one more server hosting Directadmin accounts. As soon as we solve the issue we will update this post.

January 19, 2011 · admin · Comments Closed
Posted in: Network issues

Security issue on Cpanel server Dionysos

UPDATE: A vulnerability has been found in the Linux kernel, which unfortunately is just about every system running 64-bit Linux.

This vulnerability was introduced into the linux kernel in April 2008, and so essentially every distribution is affected, including RHEL (CentOS).

CentOS  have a new kernel release that patches the vulnerability in the standard and Xen kernels (2.6.18-194.11.4.el5), which is available via yum (two days ago) and this has been applied on all servers at Guru-host running CentOS or Redhat ES.
Due to have many servers in place this took a while and unfortunately one of them been compromised.

We’ve test with a kernel diagnostic tool the new release after applying the patch and everything is safe now (see output below).

[~]# ./diagnose-2010-3081
Diagnostic tool for public CVE-2010-3081 exploit.

$$$ Kernel release: 2.6.18-194.11.4.el5
$$$ Backdoor in LSM (1/3): checking…not present.
$$$ Backdoor in timer_list_fops (2/3): not available.
$$$ Backdoor in IDT (3/3): checking…not present.

Your system is free from the backdoors that would be left in memory
by the published exploit for CVE-2010-3081.

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Dear all,

We’ve received yesterday many complains for sites been hacked on a particular Cpanel server (dionysos).
We are investigating this and will update this post as soon as we have more details.

Thanks

September 24, 2010 · admin · Comments Closed
Posted in: Network issues