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NetHostSpace.com Newsroom
NetHostSpace News archive - 2006

Kernel Upgrades

Posted Wednesday, April 28, 2006 by Admin

A new kernel vunlerability was discovered in kernels below 2.4.25 and 2.6.3. All virtual hosting servers are being upgraded to 2.4.26-grsec-tfadmin currently. For more information please see
http://isec.pl/vulnerabilities/isec-0015-msfilter.txt


Dedicated/colo machines please contact support to be upgraded.

Maintenance Window - 4/29/06 ~12 AM

Posted Wednesday, April 21, 2006 by Admin

A router configuration change and Gig E card replacement has been scheduled for tonight. Expect a window of 5 - 10 minutes.

Server Upgrade: Vision (vs117 NFS)

Posted Wednesday, April 7, 2005 by Admin

The Vision (vs117 NFS) server has been upgraded from a Dual AMD MP 1700 to a Dual Xeon 2.4 with hyperthreading. The operating system has also been upgraded from RedHat Linux 7.3 to Enterprise Linux 3.0. These upgrades will improve the stability on this server.

Outage - 3/27/2004

Posted Saturday, March 27, 2004 by Admin

On 3/27/2004 at approximately 10:30am we have notice sever packet loss and found out that we were a target of quite large Distributed Denial of Service Attack. We have been able pin-point the destination of the attack within minutes, however the amount of traffic sent towards our network caused sever outages throughout Allegiance Internet backbone.

After finally reaching high level engineers at Allegiance at approximately 12:20pm the attack has been block and our and Allegiance network are fully operational now.

We apologize for the inconvenience and are working with Allegiance to prevent and/or minimize effects of such attacks in the future.

kernel vulnerability

Posted Wednesday, February 18, 2004 by Admin

Another critical kernel vulnerability in mremap(3) system call was announced today.

http://isec.pl/vulnerabilities/isec-0014-mremap-unmap.txt

Kernel 2.4.25 and 2.6.3 has been released and fixes this issue.


Please contact support@nethostspace.com to upgrade your server kernel if you are unable to do so.

Please be aware all virtual hosting servers will be upgraded today 2/18/2004 which will require a server reboot for each.

New Email Virus Slowing Mail Servers

Posted Tuesday, January 27, 2004 by Admin

A new email virus (news24.com) is backing up some of our email servers. We are working on blocking the emails in order to prevent any further slowdowns. There may be between 5 and 30 minute delays for email delivery today.

Updated Slocate Packages

Posted Friday, January 23, 2004 by Admin

Updated slocate packages are now available that fix a heap overflow vulnerability.

Updated RPMS are available for the following RedHat Versions through our autoupdate service:
6.2
7.2
7.3

Please contact support for any questions regarding autoupdate.

Linux kernel local privilege escalation vulnerability

Posted Monday, January 5, 2004 by Admin

A local exploit has been discovered in the Linux Kernel.

http://isec.pl/vulnerabilities/isec-0013-mremap.txt

Kernel 2.4.24 has been released to correct this problem.

GRSecurity 2.4.23 Patch
http://mirror.nethostspace.com/kernel/v2.4/linux-2.4.24-grsec-tfadmin-unoff.tgz

Unpatched
http://mirror.nethostspace.com/kernel/v2.4/linux-2.4.24-tfadmin.tgz

Official GRSecurity Patch
http://mirror.nethostspace.com/kernel/v2.4/linux-2.4.24-grsec-tfadmin.tgz


All virtual hosting servers are currently being upgraded to the latest versions. Please contact support if you are a server owner and are unable to upgrade your server's kernel.

The admin script /admin/latestkernel has been updated for the new kernels.

Apache Upgrades On Virtual Hosting Servers

Posted Monday, November 10, 2003 by Admin

Between 5PM and Midnight today virtual hosting servers will be upgraded to Apache 1.3.29. This will be the only upgrade except on the following servers:

Dropkick, Vertex, NJC1, Polygon, Twiggy

The above servers will also be upgraded to PHP 4.3.3

Please contact support with any questions regarding these upgrades.

Apache 1.3.29 Released

Posted Monday, November 10, 2003 by Admin

Fixes security issue CAN-2003-0542

Please contact support if you are unsure how to upgrade your Apache software.


OpenSSH Exploit

Posted Tuesday, September 16, 2003 by Admin

http://www.securityfocus.com/archive/1/337662/2003-09-13/2003-09-19/0 [securityfocus.com]

An OpenSSH exploit has been found where a remote user can potentially gain root access. Fixes for RedHat servers are available and have already been applied if we have access to your server. To find out for sure run rpm -q openssh. If the version is not openssh-3.6.1p2-tf1 run /admin/upscripts; /admin/latestssh

Fixes are available for 6.2, 7.2, 7.3, and 9. If your RH version is not supported contact support or run up2date. Patched SRPMS are available at http://mirror.nethostspace.com/openssh-3.6.1p2-tf1.src.rpm. Other distros can get the latest source (3.7) from http://openssh.org/portable.html

[ DDOS Attack ]

Posted Tuesday, August 19, 2003 by Admin

At 9:50 PM EST a large Distributed Denial of Service attack began on a server in our network. Our head network engineer immediately came in and began working on blocking this attack. Incoming traffic was severely slowed during the attack. Working with our Upstream Providers we were able to block the attack by null routing the ip address which was being attacked. The network was back to normal at 10:45 PM EST. We are currently still investigating this situation.

Important Network Move Information

Posted Thursday, June 19, 2003 by Admin

On Friday June 13th there was an outage on the Verizon circuit. Verizon claims the fail over circuit did not take over when the main
circuit failed. A week later we have learned the situation has still not been resolved and there are still lingering network issues.


As an owner and person that is responsible for all the businesses located on this premises, I can not take a risk to allow
another major downtime while we wait for the issue to be fixed. I have spoken to several people and found out Verizon employees are
planning on going on strike soon due to lack of contract.

I have made arrangements to move the entire operation to a near by
carrier hotel, this will eliminate the loop and any point to point failure. The location is 15 minutes from our current location. This
move will improve our network by eliminating the Verizon loop as a point of failure, improve our network by increasing the amount of
available bandwidth, and create a stable foundation for future growth and stability.

This move will take place on Friday June
20th between 12 and 1am EST and are taking all the steps necessary to insure a smooth transition.

RedHat EOL

Posted Monday, November 10, 2003 by Admin

Many clients have inquired about what will be done when RedHat stops supporting 7.X and 8.X at the end of the year, and 9.0 in April 2004. As with RedHat 6.2 we will build RPM upgrades/security fixes for clients through our /admin/upgraderpms update service. In the future we will support Fedora Linux, the community sponsored RedHat linux, in addition to RedHat Enterprise, Debian and eventually Gentoo and FreeBSD.

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