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can I use CentOS as a antivirus / spam filter / HTTP AV gateway?
by Rudi Ahlers 10 Jul '08

10 Jul '08

Hi all I've been thinking about using CentOS on a Dell R200 server and turn it into a firewall / network monitor / traffic shaper in our datacentre, instead of using a dedicated firewall device. One of the devices that I have been looking at, with my limited budget, is the D-Link DFL 860 - http://www.netdefend.eu/Product.aspx?m=15&ref=DFL-860 It provides AV, SPI, VPN, DOS, P2P, etc protection. Most of this can be done with Linux as well, but I'm not 100% sure about the AV part. How will I use / setup CentOS to check all traffic coming in & out (HTTP, SMTP, POP3, IMAP, etc) for virusses and clean them? We host both Windows & Linux servers, and I'm not too worried about the Linux servers, but Windows needs a lot of extra protection. -- Kind Regards Rudi Ahlers CEO, SoftDux Web: http://www.SoftDux.com Check out my technical blog, http://blog.softdux.com for Linux or other technical stuff, or visit http://www.WebHostingTalk.co.za for Web Hosting stuff

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1st static IPv6 address
by Robert Moskowitz 10 Jul '08

10 Jul '08

My ISP assigned prefix is: 2607:F4B8:3::/48 So I am building my internal IPv6 firewall/router/ etc. I want to have a static IPv6 address on its eth0 so that I can create static v6 routes to it from the gateway. I add the following lines to ifcfg-eth0: HWADDR=00:40:F4:05:A8:F1 IPV6INIT=yes IPV6_AUTOCONF=no IPV6ADDR="2607:F4B8:3:1" if-up eth0 gets the error: Error: an inet prefix is expected rather than "2607:F4B8:3:1/64". ERROR : [ipv6_add_addr_on_device] Cannot add IPv6 address '2607:F4B8:3:1/64' on dev 'eth0' What is missing? Why is it not building an address of 2607:F4B8:3:1:0:40:F405:A8F1 ? I am reading: file:///usr/share/doc/initscripts-8.45.19.EL/sysconfig.txt for my 'inspiration'. Other sources are welcome... OH, /etc/sysconfig/network does have the line: NETWORKING_IPV6=yes

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what does "not found" mean in a DHCPRELEASE context?
by David Mackintosh 10 Jul '08

10 Jul '08

I have a CentOS 4.6 server running dhcpd. One of my client devices (a Panasonic KX-HCM280A camera) is trying to get a lease from that server. I can see the device accept a lease (it is a reservation), however it always releases the reservation after about 25 seconds: Jul 10 10:30:49 stargate dhcpd: DHCPDISCOVER from 00:80:f0:56:46:30 via eth0 Jul 10 10:30:49 stargate dhcpd: DHCPOFFER on 172.31.14.13 to 00:80:f0:56:46:30 via eth0 Jul 10 10:30:49 stargate dhcpd: DHCPREQUEST for 172.31.14.13 (172.31.0.1) from 00:80:f0:56:46:30 via eth0 Jul 10 10:30:49 stargate dhcpd: DHCPACK on 172.31.14.13 to 00:80:f0:56:46:30 via eth0 Jul 10 10:31:16 stargate dhcpd: DHCPRELEASE of 172.31.14.13 from 00:80:f0:56:46:30 via eth0 (not found) If I remove the reservation and reset the camera, it does the same thing with a dynamic lease; however in that case the message is Jul 3 09:48:05 stargate dhcpd: DHCPDISCOVER from 00:80:f0:56:46:30 via eth0 Jul 3 09:48:06 stargate dhcpd: DHCPOFFER on 172.31.9.91 to 00:80:f0:56:46:30 via eth0 Jul 3 09:48:06 stargate dhcpd: DHCPREQUEST for 172.31.9.91 (172.31.0.1) from 00:80:f0:56:46:30 via eth0 Jul 3 09:48:06 stargate dhcpd: DHCPACK on 172.31.9.91 to 00:80:f0:56:46:30 via eth0 Jul 3 09:48:19 stargate dhcpd: DHCPRELEASE of 172.31.9.91 from 00:80:f0:56:46:30 via eth0 (found) ...ie "(found)" instead of "(not found)". I should mention that I have several other cameras of the same type which are working, so this is most assuredly a problem with the camera itself, but I was still wondering: Does anyone know what dhcpd (or the device) is trying to tell me with this message? -- /\oo/\ / /()\ \ David Mackintosh | dave(a)xdroop.com | http://www.xdroop.com

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UTF-8 support in PCRE
by Amitava Shee 10 Jul '08

10 Jul '08

How do I get utf-8 support with PCRE? I am having problems building lucene index using Zend_Lucene. I get the following error PHP Notice: iconv(): Detected an illegal character in input string in /var/www/ZendFramework-1.5.2/library/Zend/Search/Lucene/Analysis/Analyzer/Common/Text.php on line 56 Thanks in advance. Regards, Amitava Shee

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Slow HVM IO performance with newer kernels
by henry ritzlmayr 10 Jul '08

10 Jul '08

Hi list. I am testing CentOS 5.2 now. I experience much slower IO under HVM Guests with the newer kernels, so I started some measurements. DOM-0 is a fully upgraded CentOS 5.2. DOM-U is CentOS 5.0 not upgraded at all for testing purposes. DOM-U sits on an LVM Volume. No other services are running. Hardware was freshly rebooted every time. within DOM-0 dd if=/dev/vgpentanol/lvol2 of=/dev/null bs=1M count=1000 gives 134 MB/s so thats the bare metal value. within DOM-U dd if=/dev/hda of=dev/null bs=1M count 1000 gives 50 MB/s with DOM-0 kernel 2.6.18-53.1.19.el5xen 10 MB/s with DOM-0 kernel 2.6.18-92.1.1.el5xen 10 MB/s with DOM-0 kernel 2.6.18-92.1.6.el5xen so there has been a drop to 20% of the performance within 2.6.18-53. Any Ideas? The machine is a test system - so I am open to any changes in configuration you might suggest. As a side note: A PV Guest gets 85 MB/s no matter which kernel. Henry

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CentOS-announce Digest, Vol 41, Issue 5
by centos-announce-request＠centos.org 10 Jul '08

10 Jul '08

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. Re: Bind Patch (Karanbir Singh) 2. CESA-2008:0533 Important CentOS 3 ia64 bind - security update (Pasi Pirhonen) 3. CESA-2008:0533 Important CentOS 3 s390(x) bind - security update (Pasi Pirhonen) 4. CESA-2008:0533 Important CentOS 4 ia64 bind - security update (Pasi Pirhonen) 5. CESA-2008:0533 Important CentOS 4 s390(x) bind - security update (Pasi Pirhonen) 6. CESA-2008:0584 Important CentOS 3 ia64 pidgin - security update (Pasi Pirhonen) 7. CESA-2008:0584 Important CentOS 4 ia64 pidgin - security update (Pasi Pirhonen) 8. CESA-2008:0583 Important CentOS 4 ia64 openldap - security update (Pasi Pirhonen) 9. CESA-2008:0584 Important CentOS 3 s390(x) pidgin - security update (Pasi Pirhonen) 10. CESA-2008:0584 Important CentOS 4 s390(x) pidgin - security update (Pasi Pirhonen) 11. CESA-2008:0583 Important CentOS 4 s390(x) openldap - security update (Pasi Pirhonen) 12. CESA-2008:0584 Important CentOS 5 i386 pidgin Update (Karanbir Singh) 13. CESA-2008:0584 Important CentOS 5 x86_64 pidgin Update (Karanbir Singh) 14. CESA-2008:0583 Important CentOS 5 i386 openldap Update (Karanbir Singh) 15. CESA-2008:0583 Important CentOS 5 x86_64 openldap Update (Karanbir Singh) ---------------------------------------------------------------------- Message: 1 Date: Wed, 09 Jul 2008 13:06:16 +0100 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] Re: Bind Patch To: Edward Casteloes <Edward.Casteloes(a)esendex.com> Cc: centos-announce(a)centos.org Message-ID: <4874A9B8.7020805(a)centos.org> Content-Type: text/plain; charset=UTF-8; format=flowed read the announcement posted and the check the url in there. Edward Casteloes wrote: > > > Hi, > > I have seen that the 9.3.4 bind patch is available for Centos 5, does > this patch rectify the big DNS issue that was just announced yesterday? > The reason I ask is according to ISC they recommend updating to 9.3.5-P1 > http://www.isc.org/index.pl?/sw/bind/forgery-resilience.php . I am sure > you are getting a lot of mail about this, but if you could advise it > would be appreciated. > > Many Thanks, > > Ed > > > *Edward Casteloes* > Operations Manager > Esendex Ltd > > T: +44 (0)115 852 5774 > F: +44 (0)115 852 5757 > Email: Edward.Casteloes(a)esendex.com <mailto:Edward.Casteloes@esendex.com> > Web: www.esendex.com <http://www.esendex.com/> > > Esendex: Every Message Matters > > *Confidentiality*: This e-mail (and any associated files) is intended > only for the use of kbsingh(a)centos.org, centos-announce(a)centos.org and > may contain information that is confidential, subject to copyright or > constitutes a trade secret. If you are not kbsingh(a)centos.org, > centos-announce(a)centos.org you are hereby notified that any disclosure, > copying or distribution of this message, or files associated with this > message, is strictly prohibited. If you have received this message in > error, please notify us immediately by replying to the message and then > delete it from your computer. Messages sent to and from us may be > monitored. The views expressed in this message are those of the author > Edward Casteloes and do not necessarily represent the views of Esendex Ltd. > ** > *Security*: This e-mail and any attachments are believed to be free from > any virus but it is the responsibility of the recipient to ensure this > is so. E-mail is not a 100% secure communications medium. We recommend > you observe this when e-mailing us. > *Esendex Ltd* is a limited company registered in the UK, with company > number 04217280 and having its registered office at 32a Stoney Street • > Nottingham • NG1 1LL • United Kingdom. > [v1.1 EN] ------------------------------ Message: 2 Date: Wed, 9 Jul 2008 18:32:38 +0300 From: Pasi Pirhonen <upi(a)centos.fi> Subject: [CentOS-announce] CESA-2008:0533 Important CentOS 3 ia64 bind - security update To: centos-announce(a)centos.org Message-ID: <20080709153238.GC31936(a)centos.fi> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory 2008:0533 https://rhn.redhat.com/errata/RHSA-2008-0533.html The following updated files have been uploaded and are currently syncing to the mirrors: ia64: updates/ia64/RPMS/bind-9.2.4-22.el3.ia64.rpm updates/ia64/RPMS/bind-chroot-9.2.4-22.el3.ia64.rpm updates/ia64/RPMS/bind-devel-9.2.4-22.el3.ia64.rpm updates/ia64/RPMS/bind-libs-9.2.4-22.el3.ia64.rpm updates/ia64/RPMS/bind-utils-9.2.4-22.el3.ia64.rpm -- Pasi Pirhonen - upi(a)iki.fi - http://pasi.pirhonen.eu/ Top-postings silently ignored

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yum dependency problem
by fred smith 10 Jul '08

10 Jul '08

Hi: Today when I do yum update I get this: Resolving Dependencies --> Running transaction check --> Processing Dependency: libdirectfb-0.9.so.25 for package: mplayer ---> Package directfb.i386 0:1.0.1-1.el5.rf set to be updated ---> Package amrnb.i386 0:7.0.0.2-1.el5.rf set to be updated ---> Package gsm.i386 0:1.0.12-1.el5.rf set to be updated --> Finished Dependency Resolution Error: Missing Dependency: libdirectfb-0.9.so.25 is needed by package mplayer and I have to admit I don't understand that.... it says it's going to update directfb.i386 then it says directfb is required by mplayer. Huh? perhaps it means it's trying to replace my existing directfb with a DIFFERENT verson and can't because mplayer needs the existing one? the existing directfb I have is: directfb-0.9.25.1-1.el5.rf which came from the same repo as my mplayer: mplayer-1.0-0.38.rc1try2.el5.rf so am I to assume that some other repo (with a greater priority, since I'm using the priority plugin) is trying to overwrite the one I got from the rf repo? the base repos (base, updates, addons and extras) are all priority 1, centosplus and contrib are 2. rpmforge is 10. that's all there are. What's wrong here? Thanks! -- ---- Fred Smith -- fredex(a)fcshome.stoneham.ma.us ----------------------------- I can do all things through Christ who strengthens me. ------------------------------ Philippians 4:13 -------------------------------

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Mysql replication stopped after 5.2 update.
by Alessandro Ren 10 Jul '08

10 Jul '08

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Re: [CentOS] Shell Script Question
by Les Bell 10 Jul '08

10 Jul '08

"Joseph L. Casale" <JCasale(a)activenetwerx.com> wrote: >> What's the simplest way to increment the number 0000 up by one until some other 4 digit number while preserving leading zero's until the 1000's has a digit other than 0? << Easy: $ seq -f %04g 0000 9999 Best, --- Les Bell, RHCE, CISSP [http://www.lesbell.com.au] Tel: +61 2 9451 1144 FreeWorldDialup: 800909

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Shell Script Question
by Joseph L. Casale 10 Jul '08

10 Jul '08

What's the simplest way to increment the number 0000 up by one until some other 4 digit number while preserving leading zero's until the 1000's has a digit other than 0? Thanks! jlc

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