Re: [CentOS] ssh - alternate ports, and host verification
Are these on the same ip, but different ports? I suggest setting up two different hostnames. Russ --Original Message-- From: dnk Sender: centos-boun...@centos.org To: CentOS Mailing list ReplyTo: CentOS Mailing list Sent: Mar 19, 2009 6:53 PM Subject: [CentOS] ssh - alternate ports, and host verification I have a centos box that will need to ssh into 2 other centos boxes (with keys). Now one of these boxes is a firewall, and another is a system behind the firewall. I have rules in my firewall to punch into the system behind the FW. Now if i connect to the IP (sine the public one is shared), anytime i connect to the other system, I get the host verification failed error and have to remove the IP from the known_hosts file. What is the best (secure) way to get around this? I know i can disable the check, but that is not my preferred way. Thanks. d ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos Sent from my Verizon Wireless BlackBerry ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] libpng and Kernel updates
I noticed that CentOS 5.2 does not have the following updates listed in the repository. https://rhn.redhat.com/errata/RHSA-2009-0264.html https://rhn.redhat.com/errata/RHSA-2009-0333.html Is this something that is coming soon? Thanks! ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Email/GroupWare Suite
Cc$ Sent from my Verizon Wireless BlackBerry -Original Message- From: Bo Lynch bly...@ameliaschools.com Date: Wed, 7 Jan 2009 18:45:22 To: CentOS mailing listcentos@centos.org Subject: Re: [CentOS] Email/GroupWare Suite On Wed, January 7, 2009 6:06 pm, Andrew Cotter wrote: -Original Message- From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of Rainer Duffner Sent: Wednesday, January 07, 2009 5:32 PM To: CentOS mailing list Subject: Re: [CentOS] Email/GroupWare Suite Am 07.01.2009 um 22:24 schrieb Adam Tauno Williams: You'll definitely want to look at a multi-server setup for that. Put your mail/web services on one box and database/LDAP on another. Also, for such a large installation you may even want to look at their commercially supported editions. Last time I checked (admittedly quite a while ago) the pricing wasn't too horrendous and I've heard good things about their support staff. We've always opted to go with the pure open source aka self- supported version but then again we're running installations with fewer than 300 users. I believe our largest installation to date is ~100 users or so. I would have thought that this was a small install:) Agree. If you need multi-servers for 300 hundred users something is just designed wrong. Unless you've got 300 intense power users. Even then... 300 users should fit on a desktop-class machine (provided you've got enough RAM). Zimbra uses Java / Jetty and thus likes to have enough RAM. On a single server, I'd go with at least 8 GB of RAM. Go with 64bit Linux (AMD64). CentOS is not supported, but it seems to work nicely or now... Rainer ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos My problem would be that a single machine is a single point of failure. We are looking at zimbra and using at least two machines utilizing GFS and our SAN so we can withstand a failure. We have around 75 users but I am not willing to have email down due to a single machine failing. (Btw, these would be virtual machines running on xenserver) Seeing as you are in education, if you are looking to actually pay for licensing a product and are actually interested in Zimbra, take a look at their hosted model. It is only for educational institutions right now (not that I know if they will make the offering more widely available) and may fit the bill even more by not having to manage the hardware. My biggest concern is the long term viability of zimbra with the possibility of MicroHoo or someone else picking up Yahoo in the future. I don't want to start something with that one, but for a business this is definitely a concern. I believe some of this has been addressed in their licensing language and there is always the the GPL version which would probably survive for at least a short while. Andrew We would definitely be looking at a app for free in other words zimbra's open source release. We are planning on using existing hardware that we have. Currently we are running CentOS 5.2 with Pentium D 3.2 with 2gb ram and 2 500GB SATA drives in a RAID. The motherboard that we have will support a quadcore xeon if needed. Are setup now has no probs but we are only doing basic email and calendar within squirrelmail itself. Bo Lynch ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Help me
Top posting is when you put your reply on top of the original message, the way I'm doing. Apparently some people prefer that for some reason which dates back to the days of newsgroups. Some people also don't understand that not all clients support bottom posting. Interestingly enough, we use top posting 99% of the time at work, even though it takes extra effort to do so in thunderbird. We had a new employee that started with us, and used bottom posting on some of her replies, and most people thought that her replies were empty. Food for thought, I guess. Russ Sent from my Verizon Wireless BlackBerry -Original Message- From: Sadaruwan Samaraweera [EMAIL PROTECTED] Date: Mon, 1 Sep 2008 08:47:21 To: CentOS mailing listcentos@centos.org Subject: Re: [CentOS] Help me ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Centos 5.2 and Xen
If you only have 512mb of ram, there's almost no reason to virtualize. Windows needs a minimum of 128-512MB to run stable. I highly suggest that you get more RAM - its very cheap these days. If you want to dedicate a box to virtualization, and won't be using more then 4GB of ram for your virtual machines - I highly recommend xenserver express. Its free, but has much better performance then vmware. Looking at it more closely, it seems to be rhel5, or more likely centos5 under the hood, so you can probably use the host for other things too. I wonder if it can be combined with other techologies - KVM, openVZ, etc to give more then 4GB of ram for virtualization? I tried installing vmware, but it wouldn't run under.a xen kernel. RuSs Sent from my Verizon Wireless BlackBerry -Original Message- From: Lanny Marcus [EMAIL PROTECTED] Date: Wed, 11 Jun 2008 17:22:12 To:CentOS mailing list centos@centos.org Subject: Re: [CentOS] Centos 5.2 and Xen On 6/11/08, Ned Slider [EMAIL PROTECTED] wrote: snip I've run VMware Server (free, as in cost, not as in open source) on CentOS to host WinXP VMs since it was in beta and have no complaints. There is an RPM package available on VMware's site: $ rpm -q VMware-server VMware-server-1.0.6-91891.i386 It's only available in i386 package but installs fine on x86_64 and supports 64-bit VMs provided the underlying hardware supports it. I believe VMs are limited to a max of 2 processors each. I've used VMware Server on systems varying from old AthlonXP, 512MB RAM through to Intel Quad Core Q6600 with 4GB RAM. Note VMware will run on older processors without hardware virtualization. In my experience there's little noticeable difference between software and hardware virtualization (on VMware), and each run at about the perceived speed you would expect if it was on native hardware (I've not conducted any benchmark tests). The main consideration is that you have enough RAM to support the host OS (CentOS) and any VM(s) running on it. I've not used Xen so can't offer a comparison. Ned: I was very interested to read that you've run VMWare Server on systems with only 512 MB of RAM. I haven't tried it, because the box I can use only has 512 MB of RAM. My impression is that Xen is much more demanding about HW. Lanny ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] mod_rewrite issue
Gary, While this is a CentOS list and you would probably get better help on the apache httpd list, I think you're looking for the P flag. Your web server will proxy the request for you. Keep in mind that the source ip of such requests will be your server, although I believe certain headers get set with the original ip of the client. Russ Sent from my Verizon Wireless BlackBerry -Original Message- From: Gary [EMAIL PROTECTED] Date: Wed, 4 Jun 2008 08:33:38 To:centos@centos.org Subject: [CentOS] mod_rewrite issue I'm installing Drupal 6.2 in the document root of a CentOS 5 install using httpd-2.2.3-11.el5_1. I'm using a virtual host entry with the following rewrite rule to enable clean URLs: RewriteRule ^(.*)$ index.php?q=$1 [R,L,QSA] This works fine expect the user still sees the ugly URL in the address bar. However, if I remove the R, it breaks completely. Any clues? I can send more of my httpd.conf if you think it'll help. much thanks, Gary ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
