Re: [CentOS] Machine becoming irresponsive

2012-01-24 Thread Alain Péan
Hi Dotan, Le 23/01/2012 17:49, Dotan Cohen a écrit : Thanks, all. I suppose that you all are right, considering that 5.2 is no longer supported. I was under the impression that this is an older but up-to-date install. This server sits in a datacenter hundreds or thousands of kilometers from

[CentOS] Machine becoming irresponsive

2012-01-23 Thread Dotan Cohen
There is a CentOS 5.2 machine that is sometimes found to be offline. It runs a few websites but nothing very high traffic. I happened to notice a few days ago that before it went down, one of the sites written in PHP was throwing errors that it could not connect to the MySQL backend. Two hours

Re: [CentOS] Machine becoming irresponsive

2012-01-23 Thread Phil Schaffner
Dotan Cohen wrote on 01/23/2012 08:39 AM: There is a CentOS 5.2 machine ... I'd have a look at why an apparently Internet-facing server is 5 point releases, plus a lot of subsequent errata, behind the current 5.7 release level; and what resultant vulnerabilities might have been exploited.

Re: [CentOS] Machine becoming irresponsive

2012-01-23 Thread Dotan Cohen
On Mon, Jan 23, 2012 at 16:23, Phil Schaffner philip.r.schaff...@nasa.gov wrote: I'd have a look at why an apparently Internet-facing server is 5 point releases, plus a lot of subsequent errata, behind the current 5.7 release level; and what resultant vulnerabilities might have been exploited.

Re: [CentOS] Machine becoming irresponsive

2012-01-23 Thread Giles Coochey
On 2012-01-23 15:13, Dotan Cohen wrote: On Mon, Jan 23, 2012 at 16:23, Phil Schaffner philip.r.schaff...@nasa.gov wrote: I'd have a look at why an apparently Internet-facing server is 5 point releases, plus a lot of subsequent errata, behind the current 5.7 release level; and what resultant

Re: [CentOS] Machine becoming irresponsive

2012-01-23 Thread Nicolas Thierry-Mieg
Dotan Cohen wrote: On Mon, Jan 23, 2012 at 16:23, Phil Schaffner philip.r.schaff...@nasa.gov wrote: I'd have a look at why an apparently Internet-facing server is 5 point releases, plus a lot of subsequent errata, behind the current 5.7 release level; and what resultant vulnerabilities might

Re: [CentOS] Machine becoming irresponsive

2012-01-23 Thread Chris Geldenhuis
Dotan Cohen wrote: On Mon, Jan 23, 2012 at 16:23, Phil Schaffner philip.r.schaff...@nasa.gov wrote: I'd have a look at why an apparently Internet-facing server is 5 point releases, plus a lot of subsequent errata, behind the current 5.7 release level; and what resultant vulnerabilities

Re: [CentOS] Machine becoming irresponsive

2012-01-23 Thread Patrick Lists
On 23-01-12 16:13, Dotan Cohen wrote: Thanks. There are a lot of very specific software on that server that precludes it from being updated. I believe that 5.2 still is seeing security updates, no? 5.2 does not get security updates. My guess is your box has been compromised. Boot the box with

Re: [CentOS] Machine becoming irresponsive

2012-01-23 Thread Les Mikesell
On Mon, Jan 23, 2012 at 9:13 AM, Dotan Cohen dotanco...@gmail.com wrote: On Mon, Jan 23, 2012 at 16:23, Phil Schaffner philip.r.schaff...@nasa.gov wrote: I'd have a look at why an apparently Internet-facing server is 5 point releases, plus a lot of subsequent errata, behind the current 5.7

Re: [CentOS] Machine becoming irresponsive

2012-01-23 Thread Denniston, Todd A CIV NAVSURFWARCENDIV Crane
-Original Message- From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of Dotan Cohen Sent: Monday, January 23, 2012 10:14 To: CentOS mailing list Subject: Re: [CentOS] Machine becoming irresponsive On Mon, Jan 23, 2012 at 16:23, Phil Schaffner

Re: [CentOS] Machine becoming irresponsive

2012-01-23 Thread Les Mikesell
On Mon, Jan 23, 2012 at 7:39 AM, Dotan Cohen dotanco...@gmail.com wrote: It's not my box, but I may have opportunity to look at it. After going through dmesg and messages, if I don't find anything obvious, what should I start looking for? Forwarding on behalf of Mark whose emails are being

Re: [CentOS] Machine becoming irresponsive

2012-01-23 Thread Dotan Cohen
Thanks, all. I suppose that you all are right, considering that 5.2 is no longer supported. I was under the impression that this is an older but up-to-date install. This server sits in a datacenter hundreds or thousands of kilometers from anyone related to it, so I will back it all up via rsync.

Re: [CentOS] Machine becoming irresponsive

2012-01-23 Thread Dotan Cohen
On Mon, Jan 23, 2012 at 18:57, m.r...@5-cent.us wrote: a) You should NOT, under any circumstances, be backing it up to your home systems. You should be backing it up to a work server - there are very serious legal implications involved here. Thanks, but there are no customer data or other

Re: [CentOS] Machine becoming irresponsive

2012-01-23 Thread John R Pierce
On 01/23/12 7:13 AM, Dotan Cohen wrote: I believe that 5.2 still is seeing security updates, no? 5.7 (plus anything released since 5.7) *is* the current security update to 5.2 -- john r pierceN 37, W 122 santa cruz ca mid-left coast