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WUBI like process for CentOS ?
by Karanbir Singh 15 Aug '08

15 Aug '08

Hi, Over the last few days a couple of people have asked about WUBI liks process for CentOS. I've had to look up what WUBI is ( to save you time : http://en.wikipedia.org/wiki/Wubi_(Ubuntu) ) . Now the question: is there anyway to get something similar for CentOS ? or is there a process that someone might follow to achieve the same or similar result ? - KB

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CentOS-announce Digest, Vol 42, Issue 4
by centos-announce-request＠centos.org 15 Aug '08

15 Aug '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. CESA-2008:0839 Moderate CentOS 3 i386 postfix - security update (Tru Huynh) 2. CESA-2008:0839 Moderate CentOS 3 x86_64 postfix - security update (Tru Huynh) 3. CESA-2008:0839 Moderate CentOS 5 i386 postfix Update (Karanbir Singh) 4. CESA-2008:0839 Moderate CentOS 5 x86_64 postfix Update (Karanbir Singh) 5. CESA-2008:0818 Moderate CentOS 5 i386 hplip Update (Karanbir Singh) 6. CESA-2008:0818 Moderate CentOS 5 x86_64 hplip Update (Karanbir Singh) ---------------------------------------------------------------------- Message: 1 Date: Fri, 15 Aug 2008 11:43:49 +0200 From: Tru Huynh <tru(a)centos.org> Subject: [CentOS-announce] CESA-2008:0839 Moderate CentOS 3 i386 postfix - security update To: centos-announce(a)centos.org Message-ID: <20080815094349.GA28145(a)sillage.bis.pasteur.fr> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory CESA-2008:0839 postfix security update for CentOS 3 i386: https://rhn.redhat.com/errata/RHSA-2008-0839.html The following updated file has been uploaded and is currently syncing to the mirrors: i386: updates/i386/RPMS/postfix-2.0.16-14.1.RHEL3.i386.rpm source: updates/SRPMS/postfix-2.0.16-14.1.RHEL3.src.rpm You may update your CentOS-3 i386 installations by running the command: yum update postfix Tru -- Tru Huynh (mirrors, CentOS-3 i386/x86_64 Package Maintenance) http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xBEFA581B

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question between centos 4.6 i586 and denian edge
by Jerry Geis 15 Aug '08

15 Aug '08

I have a strange situation. I am using centos 4.6 i586 with alsa 1.0.17 and asterisk 1.4.21.1 (only the console/dsp or soudn port). running centos 4.6 asterisk will seg fault after awhile. running debian edge with the same installed packages it does not seg fault. running x86_64 centos 4.6 and 5.2 asterisk does not seg fault. What might be going on with centos i586 that it is causing asterisk to seg fault? Any ideas? Another thing I tried is put 2.6.24.4 on centos 4.6 (debian edge runs 2.6.18) I then re-installed my packages. Still the asterisk on centos seg faults. Asterisk is heavy in threads is this some problem? Any solution to that? Thanks for any ideas. Jerry

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df to get total disk usage on all filesystems?
by Sean Carolan 14 Aug '08

14 Aug '08

Is there a flag for the df command to get the total disk space used on all filesystems as one number? I have a server with a lot of mounted shares. I'm looking for a simple way to measure rate of data growth across all shares as one total value.

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Re: [CentOS] Checking last shutdown state
by Brent L. Bates 14 Aug '08

14 Aug '08

Does your UPS software have any logging capabilities? I know APC's PowerChute+ software logs everything it does. There would be an entry in it's logs saying it was doing a clean shutdown. The system logs may also have something about the time the system shutdown too. -- Brent L. Bates (UNIX Sys. Admin.) M.S. 912 Phone:(757) 865-1400, x204 NASA Langley Research Center FAX:(757) 865-8177 Hampton, Virginia 23681-0001 Email: B.L.BATES(a)larc.nasa.gov http://www.vigyan.com/~blbates/

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Checking last shutdown state
by Joseph L. Casale 14 Aug '08

14 Aug '08

How do I check the last shutdown, or any if possible for the status related to whether or not it was clean? I need to know if a UPS had successfully shut a few boxes down. Thanks! jlc

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RE: [CentOS] What is vibr0 Network interface and what is it used for
by Trevor Benson 14 Aug '08

14 Aug '08

Sorry missed the answer you provided the first time. T

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RE: [CentOS] What is vibr0 Network interface and what is it used for
by Trevor Benson 14 Aug '08

14 Aug '08

My first guess would be a Virtual Bridge 0 interface. Did you decide to install Xen during the 5.2 installation? If so then it would automatically start up its network bridge to connect your Xen Guests to your local network (if you mapped the Xen Guest interface to work on this bridge). Trevor > -----Original Message----- > From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On > Behalf Of Ivan Varbanov > Sent: Thursday, August 14, 2008 12:06 AM > To: CentOS mailing list > Subject: Re: [CentOS] What is vibr0 Network interface and what is it > used for > > It comes from virtual bridge (if you use vm,xen ...). > > On Wed, Aug 13, 2008 at 7:54 AM, Lunix1618 <lunix1618(a)gmail.com>wrote: > Hello, > > I have see that my machine have an interface that named virbr0. I have > no idea what is it and what it using for ? I am not configured any IP > address for it but I see it had an IP address and see it listed in > firewall config. > Can anyone give me an explanation about this or point me to a document > that describe it ? > > My machine running CentOS 5.2 and do not have internet connection from > the installation time. > > Thanks, > > > virbr0 Link encap:Ethernet HWaddr 00:00:00:00:00:00 inet > addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0 > inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:0 errors:0 dropped:0 overruns:0 frame:0 > TX packets:35 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:0 (0.0 b) TX bytes:9143 (8.9 KiB) > > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org > http://lists.centos.org/mailman/listinfo/centos > > > > > > > __________ Information from ESET NOD32 Antivirus, version of virus > signature database 2806 (20080118) __________ > > The message was checked by ESET NOD32 Antivirus. > > http://www.eset.com >

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RE: [CentOS] [OT] VPN/DMZ best practices
by Trevor Benson 14 Aug '08

14 Aug '08

> There is such a wealth of knowledge and personal experience on this > list > that I'd like to get your opinions on our current situation. > > Currently, we have a simple tri-homed firewall with the internal > network <snip> > 1. What are your recommendations for where the vpn (openvpn on linux) > appliance should reside? In the dmz? Internally and configure the > firewall to allow (and nat) vpn connections? On the unused interface > in > a different dmz than our hosting software? Somewhere else? For basics regarding your environment if Linux is your firewall gateway appliance and you have multiple internal networks behind it, then openvpn on the gateway is the simplest most effective way to connect the networks. Ssl vpn's can be behind network gateway devices, but then depending on the type of connection between sites (site to site or road warrior) you may need to configure additional routes on the gateway or each machine to return traffic. If its on the gateway for your networks then that box decides how to route it out properly. > 2. Should I abandon the single firewall approach and instead use two > firewalls in a more traditional setup (gateway firewall -> dmz -> > internal firewall)? If so, where should the vpn appliance go? We do VPN's, Firewalls, and security for quite a few collocations and companies. Rarely is a company so security conscious that they want multiple layers of firewalls, and the complexity that can bring to the environment. Usually those that do have the staff on hand to troubleshoot complex networks as they need to adjust things. Not to say that this isn't done, many people do, but does your environment necessitate this level of security? If not lets stick to the single device approach. > I'll probably have more questions based on your answers and I look > forward to the responses. Thanks. > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org > http://lists.centos.org/mailman/listinfo/centos

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[OT] VPN/DMZ best practices
by Scott McClanahan 14 Aug '08

14 Aug '08

There is such a wealth of knowledge and personal experience on this list that I'd like to get your opinions on our current situation. Currently, we have a simple tri-homed firewall with the internal network on one interface, the dmz on another, and the dirty internet on the last. Also, there is a spare interface on the box which is unused. We use CentOS and manually maintain our rule sets and routes since it's not really that complex. I'd like to setup a vpn connection between our office and a remote office, as well as, allow remote users to vpn into there desktops and map samba shares. I would prefer to tie in the openvpn software with our internal openldap server. Our dmz is currently not in use at all but will be soon, hosting our software. Having said all of this, what insights do you have for the following: 1. What are your recommendations for where the vpn (openvpn on linux) appliance should reside? In the dmz? Internally and configure the firewall to allow (and nat) vpn connections? On the unused interface in a different dmz than our hosting software? Somewhere else? 2. Should I abandon the single firewall approach and instead use two firewalls in a more traditional setup (gateway firewall -> dmz -> internal firewall)? If so, where should the vpn appliance go? I'll probably have more questions based on your answers and I look forward to the responses. Thanks.

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