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how to capture packets that was forwarded
by Jaze Lee 16 Apr '13

16 Apr '13

hello, the topology is like this: centos v0:eth1 <------> centos v0: eth2 fc00:2:3:4::1 fc00:2:3::4 i turned the packet forwarding ping6 -i eth2 fc00:2:3:4::1 the output is PING fc00:2:3:4::1(fc00:2:3:4::1) from fc00:2:3::5 eth2: 56 data bytes >From fc00:2:3::4 icmp_seq=1 Destination unreachable: Administratively prohibited >From fc00:2:3::4 icmp_seq=2 Destination unreachable: Administratively prohibited >From fc00:2:3::4 icmp_seq=3 Destination unreachable: Administratively prohibited >From fc00:2:3::4 icmp_seq=4 Destination unreachable: Administratively prohibited why the box do not forwarding icmp packets to eth2? and how to set forwarding rules on centos 6.3? Thanks

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CentOS-announce Digest, Vol 98, Issue 7
by centos-announce-request＠centos.org 16 Apr '13

16 Apr '13

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. CESA-2013:0742 Low CentOS 6 389-ds-base Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Tue, 16 Apr 2013 11:10:18 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CESA-2013:0742 Low CentOS 6 389-ds-base Update To: centos-announce(a)centos.org Message-ID: <20130416111018.GA17537(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2013:0742 Low Upstream details at : https://rhn.redhat.com/errata/RHSA-2013-0742.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: cae404b070941e328fde9461d531e37406ef1267a953fb9cea268bfd803378cd 389-ds-base-1.2.11.15-14.el6_4.i686.rpm 6b4d6f4edb3fb3cbad3e09937efed226088ee2f390f35b5e7f367a813460d051 389-ds-base-devel-1.2.11.15-14.el6_4.i686.rpm e2029fa2d0ae508da3d31625945be6d96943de7fa90071191354a4cc8a2086f2 389-ds-base-libs-1.2.11.15-14.el6_4.i686.rpm x86_64: 3a9b33d77a0502a2a321b99bfe0f426f878bedd77ecbbf3c5d40a2b8beb4279a 389-ds-base-1.2.11.15-14.el6_4.x86_64.rpm 6b4d6f4edb3fb3cbad3e09937efed226088ee2f390f35b5e7f367a813460d051 389-ds-base-devel-1.2.11.15-14.el6_4.i686.rpm 00419ac033d73e6982cf0b8cfcbf08eb8c7da9e009290c02401cdfa1b69ab370 389-ds-base-devel-1.2.11.15-14.el6_4.x86_64.rpm e2029fa2d0ae508da3d31625945be6d96943de7fa90071191354a4cc8a2086f2 389-ds-base-libs-1.2.11.15-14.el6_4.i686.rpm 605a41f9fb4db0e64844f0e5fb262d20de068043e1af055361ca9f18866e8556 389-ds-base-libs-1.2.11.15-14.el6_4.x86_64.rpm Source: 05c6b18c66cf415f0d4f382ac5648cb54a9fa463b554d210acdc11ee07234dd5 389-ds-base-1.2.11.15-14.el6_4.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org http://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 98, Issue 7 **********************************************

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Regarding : ATI video driver problems
by Mark LaPierre 16 Apr '13

16 Apr '13

I gather from the discussion on the reference thread that I'll be having quite a time with a MB having an Integrated ATI Radeon HD 3000 graphics chip set and a video card using a Radeon HD 6570 chip set when I try to run CentOS 6.4 on it. I was going to ask if CrossFire works with CentOS, but it appears that the integrated chip set isn't going to work at all. Well, ignoring all that, is CrossFire supported by any of the drivers available for CentOS 6.4? If no then what about SLI support? I don't want to paint myself into a corner by building a computer that I'll never get working to full potential. Anyway, here's my wish list as it stands at the moment. Brand Model_Num Mother Board GIGABYTE GA-78LMT-USB3 Processor AMD FX-8150 CPU Cooler Case Cooler Master HAF 912 RC-912-KKN1 Power Supply Cooler Master RS650-ACAAE3-US Memory CORSAIR CMX32GX3M4A1333C9 DVD Burner Lite-On IHAS324-98 Hard Drive Seagate ST1000DM003 Video Card GIGABYTE GV-R657OC-1GI Feel free to suggest changes that might make compatibility less of an issue. I chose the MB because it supports 32G of RAM and also has a parallel port that I need to support my laser printer. I suppose I could use a parallel port interface card with another MB instead. -- _ °v° /(_)\ ^ ^ Mark LaPierre Registered Linux user No #267004 https://linuxcounter.net/ ****

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Re: [CentOS] Apache Issue on CentOS 6
by Banyan He 16 Apr '13

16 Apr '13

I did a quick test on el5 and el6 with these package, httpd-2.2.3-43.el5.centos httpd-2.2.15-15.el6.centos.1.i686 I kept the configuration as what it is in default. The index page is about 7k, 100 connections per second. I barely find the connection is marked as R. Mostly C and _. This is done by ab from httpd. I also did a quick test with slow attack. It's basically slowing the client itself to collect the data from the server. I did 200 connections per second. My server is ok seems. A little bit slow, but not too much. el5 RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRCWS..................................................... el6 RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRCRRRRCCCCCCCRWCCCCCWCCCCCCWWCCCCCCCCCCCCCCCCCCCCCCCCCCC...... I also did the capture on the network traffic that I can find out the connections are doing something bad. You may follow the lead here as I mentioned. ------------ Banyan He Blog: http://www.rootong.com Email: banyan(a)rootong.com On 4/7/2013 12:23 AM, linuxsupport wrote: > There is no problem with the hardware, If I installed CentOS 5 then it > works well, at a time out of total 44 concurrent requests 34 were in > reading state > > > On Sat, Apr 6, 2013 at 2:03 PM, Banyan He <banyan(a)rootong.com > <mailto:banyan@rootong.com>> wrote: > > I went to the source code to check this. Seems like it's used for > against the slow request attack from the rate. There is a timeout > and rate set for header and body. > > I'd keep that thought, capture one connection from tcpdump seeing > if they are doing something bad. If not, you seem need a new > server balancing the traffic. > > ------------ > Banyan He > Blog:http://www.rootong.com > Email:banyan@rootong.com <mailto:banyan@rootong.com> > > On 4/6/2013 3:06 PM, linuxsupport wrote: >> I have already checked but all requests are from different IP's >> and even different subnet >> When there are less requests it works ok even if there are more >> than 60% reading requests but during peak time when concurrent >> requests goes beyond 150, due to reading requests it becomes 300+ >> requests processing at the same time and that then Apache stop >> responding as maxclient is set to 300. CPU load also goes up and >> thing become very slow. >> >> >> On Sat, Apr 6, 2013 at 10:33 AM, Banyan He <banyan(a)rootong.com >> <mailto:banyan@rootong.com>> wrote: >> >> I'd recommend you to sort out the connections. Find out if >> they are coming from the same client or the same subnet of >> the clients. Doing a simple tcpdump capture to analyze the >> data seeing if it's a good R or a bad R. >> >> Don't really think it's because of the version. >> >> ------------ >> Banyan He >> Blog: http://www.rootong.com >> Email: banyan(a)rootong.com <mailto:banyan@rootong.com> >> >> >> On 4/6/2013 12:24 PM, linuxsupport wrote: >> >> I am facing a problem with Apache on CentOS 6 >> >> Apache 2.2.19 is complied from source. >> >> I see so many reading requests in Apache status page, as >> per my previous >> experience this "reading request" issue mainly comes when >> any of the >> internet route having any problem and it request takes >> time to completely >> reach to Apache, but this time there is no network issue. >> >> I have ran same setup on CentOS 5 it works well, but on >> CentOS 6 it show >> 60%+ reading requests, web site has 20-25 requests per >> second that becomes >> 80+ >> >> I also tried to upgrade Apache to 2.2.24 but it is same >> on new version as >> well. >> >> Anyone else has experienced this issue? >> _______________________________________________ >> CentOS mailing list >> CentOS(a)centos.org <mailto:CentOS@centos.org> >> http://lists.centos.org/mailman/listinfo/centos >> >> >> > >

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CentOS 6.3 gpgv: Libgcrypt warning: missing initialization - please fix the application
by P J 15 Apr '13

15 Apr '13

Howdy, Seemingly randomly every day the following appears in /var/log/messages gpgv: Libgcrypt warning: missing initialization - please fix the application gpgv: Libgcrypt warning: missing initialization - please fix the application

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ATI video driver problems
by m.roth＠5-cent.us 15 Apr '13

15 Apr '13

User got upgraded to 6.4. Graphical mode video fails. It's an AMD (nee ATI) RV620 (FirePro 2260). So I finished upgrading everything, including kmod-fglrx. Based on the xorg.conf's on there, it's been using the fglrx. Now, in Xorg.0.log, it tells me "no supported AMD display adapters were found". I've been on-and-off googling for hours, and can't figure out if the "legacy" kmod-nvidia from elrepo will work: their info *ONLY* lists Radeon cards, and I can't figure out what this damn thing is. Oh, lspci -v tells me it's "ATI device 2343". Anyone know what this card is like (AMD shows three different models of the same name, and I have no idea which it is, and none uses a Radeon name), and what driver I might use, or do I have to downgrade X.... mark, extremely tired of his user's machine

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Asterisk, IAXModem and Hylafax
by James B. Byrne 15 Apr '13

15 Apr '13

Arch = x86_64 OS = CentOS-6.3 (FreePBX) Asterisk = 11.3.0 (FreePBX) Hylafax+ = 5.5.3 (epel) I am installing an Asterisk server with the intent of having it act as our fax server. The Asterisk system was installed using the current FreePBX distro which is reputedly based on CentOS-6.3. I have installed Hylafax+ from epel and I have built and packaged IAXModem-1.2.0 for CentOS-6 using mock and installed that on the Asterisk host. I am past the point of setting up Asterisk and configuring extensions and users. I am able to place and receive internal calls to and from SIP devices and place and receive external calls over a PSTN analogue trunk. The echo generated by the SIP clients is terrible but that problem can wait until I get to dealing with voice service implementation. At the moment I am trying to get Hylafax configured. I have done this in the past albeit for systems using external serial modems. I am at the point of running the faxstup utility which builds the necessary hylafax configuration files. I am getting these errors from the utility: Setting Ghostscript font path in /etc/hylafax/hyla.conf. Warning: /usr/local/lib/ghostscript/fonts does not exist or is not a directory! The directory /usr/local/lib/ghostscript/fonts does not exist or this file is not a directory. This is the directory where the HylaFAX client applications expect to locate font metric information to use in formatting ASCII text for submission as facsimile. Without this information HylaFAX may generate illegible facsimile from ASCII text. Warning: /usr/share/ghostscript/8.70/Resource/Font does not exist or is not a directory! The directory /usr/share/ghostscript/8.70/Resource/Font does not exist or this file is not a directory. This is the directory where the HylaFAX client applications expect to locate font metric information to use in formatting ASCII text for submission as facsimile. Without this information HylaFAX may generate illegible facsimile from ASCII text. Warning: /usr/share/ghostscript/fonts does not exist or is not a directory! The directory /usr/share/ghostscript/fonts does not exist or this file is not a directory. This is the directory where the HylaFAX client applications expect to locate font metric information to use in formatting ASCII text for submission as facsimile. Without this information HylaFAX may generate illegible facsimile from ASCII text. These packages are installed: Installed Packages ghostscript.x86_64 8.70-14.el6_3.1 @anaconda-CentOS-201207061011.x86_64/6.3 ghostscript-fonts.noarch 5.50-23.1.el6 @anaconda-CentOS-201207061011.x86_64/6.3 Can anyone tell me what package I am missing or what else might be causing the problem? I realize that this is only tangentially a CentOS question so I crave the list's forbearance. -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

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upload a file to new github repository
by ken 15 Apr '13

15 Apr '13

Though I've used version control systems before and even set up a couple over the years, and though it was simple to setup a github repository (which I did just a couple minutes ago), I can't figure out how to upload the first file to it. I'm logged in, on the repository's home page, but can't see an option for that. I also read instructions for set up on the web and the git manpage, but no help there. Anybody here know to put a code file into the repository? Thanks.

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gnumeric spreadsheets for US taxes
by ken 15 Apr '13

15 Apr '13

For years I've been doing my (US) taxes, along with the state and local taxes, using gnumeric. I decided I should share what I've done with others. So grab the package if you want... from: <https://github.com/gebser/US-taxes-gnumeric.git>

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Dovecot rpms: requesting a minor enhancement
by Max Pyziur 15 Apr '13

15 Apr '13

Greetings, What's the process for requesting minor enhancements to packages? Currently, CentOS dovecot rpms ship w/o having tcp_wrappers enabled; to have dovecot compiled with tcp_wrappers requires adding one directive to the to the dovecot.spec file in the srpm. If the directive isn't there, then any dovecot upgrades via YUM/RPM require first to have the RPMs recompiled before doing the upgrade. Am I the only barking for this change, or could there be others? Thanks, Max Pyziur pyz(a)brama.com

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