Re: [CentOS] CentOS 7 - Firewall always allows outgoing packets?
Jonathan: Looking at the documentation closer, there does appear to be a way to add rules to the OUTPUT table, using the rich rules syntax. Do you see a way to set the default policy to DROP? Thanks, Neil -- Neil Aggarwal, (972) 834-1565 We lend money to investors to buy or refinance single family rent houses. No origination fees, quick approval, no credit check. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 7 - Firewall always allows outgoing packets?
Earl: I am looking at the documentation of the new firewalld service in CentOS 7. You can check out the following document https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/ht ml/Security_Guide/sec-Using_Firewalls.html That is the document I read when I referred to reading the documentation on the firewalld service. Neil -- Neil Aggarwal, (972) 834-1565 We lend money to investors to buy or refinance single family rent houses. No origination fees, quick approval, no credit check. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 7 - Firewall always allows outgoing packets?
Tom: I thought we were supposed to be moving forward That is my thought exactly. This is a step backwards. I guess I will disable firewalld and go back to iptables. Thanks, Neil -- Neil Aggarwal, (972) 834-1565 We lend money to investors to buy or refinance single family rent houses. No origination fees, quick approval, no credit check. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Centos 7 - iptables service failed to start
Hello all: I did a fresh install of CentOS 7 on a new machine. I wrote /usr/local/bin/firewall.stop to remove all the firewall rules. It contains this code: # Flush the rules /usr/sbin/iptables -F # Set the default policies to accept /usr/sbin/iptables -P INPUT ACCEPT /usr/sbin/iptables -P OUTPUT ACCEPT /usr/sbin/iptables -P FORWARD ACCEPT I wrote /usr/local/bin/firewall.start to set the firewall rules. It contains this code: # IP definitions ETH0_IP=a.b.c.d # Load the FTP conntrak module /usr/sbin/modprobe nf_conntrack_ftp # Set the default policies to drop all packets /usr/sbin/iptables -P INPUT DROP /usr/sbin/iptables -P OUTPUT DROP /usr/sbin/iptables -P FORWARD DROP # Flush any existing rules /usr/sbin/iptables -F # Allow loopback traffic /usr/sbin/iptables -A INPUT -i lo -j ACCEPT /usr/sbin/iptables -A OUTPUT -o lo -j ACCEPT # Allow icmp protocol packets /usr/sbin/iptables -A INPUT -i eth0 -d $ETH0_IP -p icmp -j ACCEPT /usr/sbin/iptables -A OUTPUT -o eth0 -s $ETH0_IP -p icmp -j ACCEPT [ Additional allow rules here ] If I run the firewall.start script manually, it sets the iptables rules correctly. If I run the firewall.stop script manually, it removes the iptables rules correctly. The problem comes in when I am trying to execute this from systemd. I wrote /etc/systemd/system/firewall.service with this content: [Unit] Description=Iptables firewall Before=network.target Wants=network.target [Service] Type=oneshot ExecStart=/usr/local/bin/firewall.start ExecStop=/usr/local/bin/firewall.stop RemainAfterExit=yes [Install] WantedBy=multi-user.target Now, when I run systemctl start firewall.service, I get this output: Job for firewall.service failed. See 'systemctl status firewall.service' and 'journalctl -xn' for details. If I do systemctl status firewall.status, it gives me: firewall.status.service Loaded: not-found (Reason: No such file or directory) Active: inactive (dead) journalctl -xn gives me this output: Aug 10 06:09:38 jamm23.jammconsulting.com systemd[1]: Starting Iptables firewall... -- Subject: Unit firewall.service has begun with start-up -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit firewall.service has begun starting up. Aug 10 06:09:38 jamm23.jammconsulting.com systemd[2268]: Failed at step EXEC spawning /usr/local/bin/firewall.start: Exec format error -- Subject: Process /usr/local/bin/firewall.start could not be executed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- The process /usr/local/bin/firewall.start could not be executed and failed. -- -- The error number returned while executing this process is 8. Aug 10 06:09:38 jamm23.jammconsulting.com systemd[1]: firewall.service: main process exited, code=exited, status=203/EXEC Aug 10 06:09:38 jamm23.jammconsulting.com systemd[1]: Failed to start Iptables firewall. -- Subject: Unit firewall.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit firewall.service has failed. -- -- The result is failed. Aug 10 06:09:38 jamm23.jammconsulting.com systemd[1]: Unit firewall.service entered failed state. Any ideas what is happening here? Thanks, Neil -- Neil Aggarwal, (972) 834-1565 We lend money to investors to buy or refinance single family rent houses. No origination fees, quick approval, no credit check. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Centos 7 - iptables service failed to start
Hey everyone: The process /usr/local/bin/firewall.start could not be executed and failed. I just realized I forgot to put #!/bin/sh at the top of my firewall scripts. I added that and it is working perfectly fine now. Sorry for any trouble. Thanks, Neil -- Neil Aggarwal, (972) 834-1565 We lend money to investors to buy or refinance single family rent houses. No origination fees, quick approval, no credit check. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS 7 - Firewall always allows outgoing packets?
Hello all: I am looking at the documentation of the new firewalld service in CentOS 7. It looks like no matter what I configure with it, outgoing connections are still going to be allowed. That does not seem very secure. I always set my servers to default policy of DROP for everything incoming and outgoing and then add rules to allow very specific traffic through. Is this possible using the new firewalld service or should I disable it and go back to using iptables? Thanks, Neil -- Neil Aggarwal, (972) 834-1565 We lend money to investors to buy or refinance single family rent houses. No origination fees, quick approval, no credit check. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] acrobat reader for x86_64?
Fred: Adobe doesn't seem to have acroread for x86_64 linux, or at least I don't see it anywhere. Anybody know otherwise? They produce a Linux RPM. It's not 64 bit, but it will work and that is all you can get from them at the moment. Xpdf works well enough for me that I don't need another tool. Neil -- Neil Aggarwal, (972)834-1565, http://UnmeteredVPS.net/centos Virtual private server with CentOS 6 preinstalled Unmetered bandwidth = no overage charges ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] VNC server not reponding to external requests
Will the VNC server allow remote logins as root? From root did you run vncpasswd to create the needed /root.vnc/ files? Yes, I did. I see a /root/.vnc directory with a log, pid, passwd, and xstartup files. Any suggestions? Thanks, Neil -- Neil Aggarwal, (972)834-1565, http://UnmeteredVPS.net/centos Virtual private server with CentOS 6 preinstalled Unmetered bandwidth = no overage charges ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] VNC server not reponding to external requests
Robert: And your /etc/sysconfig/vncserver has something like; VNCSERVERS=1:foo 2:root and you are attempting to connect to 5902 for the root user (compared to 5901 for user foo)? Yes. This is strange. I just ran vncpasswd as root again and I can connect now. Weird, but I guess the problem is solved. Thanks, Neil -- Neil Aggarwal, (972)834-1565, http://UnmeteredVPS.net/centos Virtual private server with CentOS 6 preinstalled Unmetered bandwidth = no overage charges ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] VNC server not reponding to external requests
Our's is not to reason why... I love that quote! I guess you truncated it to be nice. Thanks for your help! Neil -- Neil Aggarwal, (972)834-1565, http://UnmeteredVPS.net/centos Virtual private server with CentOS 6 preinstalled Unmetered bandwidth = no overage charges ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] VNC server not reponding to external requests
Hello everyone: I tried following the instructions on this page to set up a VNC server: http://wiki.centos.org/HowTos/VNC-Server I can telnet to port 5901 from the machine itself: # telnet 127.0.0.1 5901 Trying 127.0.0.1... Connected to 127.0.0.1. Escape character is '^]'. RFB 003.008 But, when I try to connect to it from the outside world, I get a connection timeout. My /etc/sysconfig/vncservers file does not have the -nolisten tcp nor the -localhost options so it should be configured to accept outside connections. Is there some default setting in the vncserver that I need to change to allow outside connections? Thanks, Neil -- Neil Aggarwal, (972)834-1565, http://UnmeteredVPS.net/centos Virtual private server with CentOS 6 preinstalled Unmetered bandwidth = no overage charges ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] VNC server not reponding to external requests
Is there some default setting in the vncserver that I need to change to allow outside connections? And what about iptables? I have iptables and selinux turned off currently. It still will not connect. Any other ideas? Thanks, Neil -- Neil Aggarwal, (972)834-1565, http://UnmeteredVPS.net/centos Virtual private server with CentOS 6 preinstalled Unmetered bandwidth = no overage charges ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] VNC server not reponding to external requests
Hey everyone: I got it working. I set it up under a user account. I was trying to set it up with the root account. It is working with the user account. Will the VNC server allow remote logins as root? Thanks, Neil -- Neil Aggarwal, (972) 834-1565 We lend money to investors to buy or refinance single family rent houses. No origination fees, quick approval, no credit check. -Original Message- From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of Neil Aggarwal Sent: Monday, February 25, 2013 10:33 AM To: centos@centos.org Subject: [CentOS] VNC server not reponding to external requests Hello everyone: I tried following the instructions on this page to set up a VNC server: http://wiki.centos.org/HowTos/VNC-Server I can telnet to port 5901 from the machine itself: # telnet 127.0.0.1 5901 Trying 127.0.0.1... Connected to 127.0.0.1. Escape character is '^]'. RFB 003.008 But, when I try to connect to it from the outside world, I get a connection timeout. My /etc/sysconfig/vncservers file does not have the -nolisten tcp nor the -localhost options so it should be configured to accept outside connections. Is there some default setting in the vncserver that I need to change to allow outside connections? Thanks, Neil -- Neil Aggarwal, (972)834-1565, http://UnmeteredVPS.net/centos Virtual private server with CentOS 6 preinstalled Unmetered bandwidth = no overage charges ___ 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] VNC server not reponding to external requests
Well, once you VNC to the system, you can simply change to the root use if you have the credentials to do so. I was hoping to connect to the remote session directly as root as opposed to doing su. Neil -- Neil Aggarwal, (972)834-1565, http://UnmeteredVPS.net/centos Virtual private server with CentOS 6 preinstalled Unmetered bandwidth = no overage charges ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] How to limit upload bandwidth for a KVM guest?
James: Is this c5 or c6? This is CentOS 6. Neil -- Neil Aggarwal, (972)834-1565, http://UnmeteredVPS.net/centos Virtual private server with CentOS 6 preinstalled Unmetered bandwidth = no overage charges ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Postfix not reading main.cf
Adrian: That is a great suggestion. Thanks for the tip! Neil -- Neil Aggarwal, (972)834-1565, http://UnmeteredVPS.net/centos Virtual private server with CentOS 6 preinstalled Unmetered bandwidth = no overage charges -Original Message- What you should do is run postconf without paramaters to a file and inspect that. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] [6.2] Postfix not reading main.cf
Hello: I just did a fresh install of CentOS 6.2 on a virtual server. I am trying to configure Postfix but it does not seem to be reading configuration directives from /etc/postfix/main.cf Here is what I did to test it: vi /etc/postfix/main.cf and set this directive: myorigin = hello.world.com postfix reload postconf -d | grep myorigin I get this output: append_at_myorigin = yes myorigin = $myhostname Any ideas why it is not picking up the configuration? Thanks, Neil -- Neil Aggarwal, (972)834-1565, http://UnmeteredVPS.net/centos Virtual private server with CentOS 6 preinstalled Unmetered bandwidth = no overage charges ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] [6.2] Postfix not reading main.cf
OK, nevermind. I was supposed to be using postconf -n instead of -d. Arrgh. Been reading till my eyes are getting crossed. Neil -- Neil Aggarwal, (972)834-1565, http://UnmeteredVPS.net/centos Virtual private server with CentOS 6 preinstalled Unmetered bandwidth = no overage charges -Original Message- From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of Neil Aggarwal Sent: Wednesday, June 06, 2012 9:13 PM To: centos@centos.org Subject: [CentOS] [6.2] Postfix not reading main.cf Hello: I just did a fresh install of CentOS 6.2 on a virtual server. I am trying to configure Postfix but it does not seem to be reading configuration directives from /etc/postfix/main.cf Here is what I did to test it: vi /etc/postfix/main.cf and set this directive: myorigin = hello.world.com postfix reload postconf -d | grep myorigin I get this output: append_at_myorigin = yes myorigin = $myhostname Any ideas why it is not picking up the configuration? Thanks, Neil -- Neil Aggarwal, (972)834-1565, http://UnmeteredVPS.net/centos Virtual private server with CentOS 6 preinstalled Unmetered bandwidth = no overage charges ___ 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] MySQL max clustering package?
John: master-master replication has all kinds of inherent issues if you're concerned with data and transactional integrity. We have evaluated the problems and think we have found adequate workarounds for them. The sites we deploy are e-commerce sites so: 1. There are a lot more reads than writes. 2. When we need to write to the database, it is saving info for an order. All orders are independent of each other so there is no conflict for those. 3. Product updates, fulfillments, etc. happen once daily at night when the traffic is almost nonexistant. The updates are sent to only one server so there is no conflict there. The only potential place a conflict may occur is in the qty available for a specific product. The inventory system updates the inventory regularly so even if the number is wrong, it gets refreshed shortly thereafter. We even built an application layer on top of master-master replication to handle cases where a transaction fails. We are using this system for several large clients and it is working well. Being able to have geographical redundancy at a reasonable cost (A true cluster would be very high cost) outweighs the limitations. Thanks, Neil -- Neil Aggarwal, (281)846-8957 MySQL pre-installed on a virtual private server for $25/mo Unmetered bandwidth = no overage charges, 7 day free trial ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] MySQL max clustering package?
Well what are your plans when it gets the AXE?? We will probably consider Maria DB. Hopefully, it will be mature enough by then. Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net/centos Virtual private server with CentOS 5.4 preinstalled for $25/month! Unmetered bandwidth = no overage charges, 7 day free trial ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] MySQL max clustering package?
Nate: I don't think MySQL replication has an issue with number of writes, That has been our experience as well. There are a couple of things to ensure: 1. The databases have to be sized such that they can handle all transactions occurring on the entire system, not just one side. 2. The network between them has to be high quality. We use premium bandwidth and keep our replicated servers in data centers. No back of the office connected via DSL/cable stuff. As long as that is the case, replication has no problem keeping up and the transactions are sent across the network very quickly. It is not real time but close enough for our needs. Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net/centos Virtual private server with CentOS 5.4 preinstalled for $25/month! Unmetered bandwidth = no overage charges, 7 day free trial ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] MySQL max clustering package?
John: Have you thought of separating the databases? One for the reads and one for the write on different raids? Despite what some may believe this can be done. Our goal is to create redundancy. We want either system to be able to work if the other is not available. Designating one database as a write db and the other as a read defeats that. Thanks, Neil -- Neil Aggarwal, (281)846-8957 FREE trial: cPanel VPS with unmetered bandwidth http://UnmeteredVPS.net/cpanel ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] MySQL max clustering package?
Alex: Do you mean that a separate job, iterates the orders, accumulates the real ordered quantity and subtracts it from some initial quantity in order to produce available quantity? There are a few things we do: 1. When we place an order, we commit the order to the database in a transaction. 2. In a separate transaction, we reduce the qty available of the product by the amounts ordered. This transaction may be a conflict with other transactions. That is OK. 3. The inventory management system keeps the master inventory of the products. We have a continuous job that pulls the latest updates to the inventory and feeds those updates back to the web database. So, even if an inventory number is wrong for a short time, it will be updated to an accurate number soon. What do you do in cases where you have oversold a product. I mean when the ordered quantity got bigger than the available quantity due to a conflict in available quantity field? I assume that the system sends an email to the warehouse to increase additionally the quantity of that product? If we oversell a product, we are going to either have to get more pronto or tell the customer we can't deliver it. The inventory numbers are updated often enough that we do not encounter it often. Could you describe a case where a transaction has failed , and how you deal with it? If a transaction fails on one endpoint, we try it against another endpoint. If it still fails, it depends on what the transaction was for. If it is not urgent (Like updating an inventory number) we send ourselves and alert and drop the transaction. If it is urgent, we notify the customer there was an error and send ourselves an alert. This happens very rarely. We also have monitoring on the state of the replication endpoints to make sure they are still active and are not having a problem communicating to the master. I hope this helps, Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net/centos Virtual private server with CentOS 5.4 preinstalled for $25/month! Unmetered bandwidth = no overage charges, 7 day free trial ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] MySQL max clustering package?
John: So, even if an inventory number is wrong for a short time, it will be updated to an accurate number soon. -- I am just curious is this a hack around some specific problem? It just does not merge in my head. Our customers sell products on marketplaces (Like Amazon) as well as their direct web site so the web database needs to get inventory updates from the inventory system in case a product sold somewhere else. Neil -- Neil Aggarwal, (281)846-8957 FREE trial: cPanel VPS with unmetered bandwidth http://UnmeteredVPS.net/cpanel ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] MySQL max clustering package?
that may be OK for an order processing system, but it could be a serious problem for something like a banking system where you are dispersing cash. I agree. I did preface my comments with that. Neil -- Neil Aggarwal, (281)846-8957 FREE trial: cPanel VPS with unmetered bandwidth http://UnmeteredVPS.net/cpanel ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] MySQL max clustering package?
Mysql by itself has built in clustering though there can be significant limitations in it depending on your requirements. I agree. The built in cluster has too many limitations to be useful, but MySQL master-master replication gives a very good alternative to a true cluster. We use it to deploy geographically redundant systems and it has worked very well for us. Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net/mysql MySQL pre-installed on a virtual private server for $25/mo Unmetered bandwidth = no overage charges, 7 day free trial ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Virtualization software to install Windows as guest on CentOS 5 as host ?
I need to install Windows as guest on my CentOS 5 as host. Can you please give me the link to download the requierd rpm package for this purpose ? The RedHat Virtualization Guide gives you all the info you will need: http://www.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5.4/html/Virtuali zation_Guide/index.html http://www.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5.4/html/Virtualiz ation_Guide/index.html -- Neil Aggarwal, (281)846-8957 FREE trial: cPanel VPS with unmetered bandwidth http://UnmeteredVPS.net/cpanel ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] RAR from Console
Hi fellows, how can I unrar (.rar of course) from my console? RPMForge has an unrar package. Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net/cpanel cPanel/WHM preinstalled on a virtual server for only $40/month! No overage charges, 7 day free trial, PayPal, Google Checkout ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS-virt] How to debug Ubuntu 8.04 LTS guest crashduring install?
Runs fine on my centos 5.4 kvm, although I used the virt-manager gui to install it. Are you using bridged networking? I think it has something to do with that as well as not having a DHCP server in my network. Interesting little distro - thanks for bringing it to my attention... I am glad you found it useful. I think it is a great project which adds tremendous value. Thanks, Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net/cpanel cPanel/WHM preinstalled on a virtual server for only $40/month! No overage charges, 7 day free trial, PayPal, Google Checkout ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS-virt] How to debug Ubuntu 8.04 LTS guest crash during install?
Hello: I am using kvm on a CentOS 5.4 server. I am trying to install the TunkeyLinux Core appliance found here: http://www.turnkeylinux.org/core I downloaded the ISO file from the web site. Then, I used this command to intall it: virt-install -n tkl-core -r 512 --vcpus=1 --check-cpu --os-type=linux --os-variant=ubuntuhardy -v --accelerate -c /tmp/turnkey-core-2009.10-hardy-x86.iso -f /var/lib/libvirt/images/tkl-core.img -s 15 -b br0 --vnc noautoconsole When I connect to the VNC console, I get the Turnkey linux options screen. I select Install to hard disk from there and it seems to start the install but crashes during the installer startup. This is repeatable so there has to be a way to debug it. I tried turning on the debug option for virt-install but that did not give me any useful info. Any ideas how to debug this? Thanks, Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net/cpanel cPanel/WHM preinstalled on a virtual server for only $40/month! No overage charges, 7 day free trial, PayPal, Google Checkout ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS] followup to request for centos C/W
i'm under the impression that RH is firmly in the KVM camp (at least for now), and that learning Xen on red hat/centos wouldn't be as useful as learning KVM. I agree. Since RH is moving to KVM, it is better to learn KVM if you have a choice. Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net/cpanel cPanel/WHM preinstalled on a virtual server for only $40/month! No overage charges, 7 day free trial, PayPal, Google Checkout ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] followup to request for centos C/W
I don't have the hardware requirements at home to support KVM I thought they run on the same hardware. What do you feel would not support KVM? Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net/cpanel cPanel/WHM preinstalled on a virtual server for only $40/month! No overage charges, 7 day free trial, PayPal, Google Checkout ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS-virt] Xen Database vms
Ben: What if it were the only real active vm? There is some overhead in virtualization, but you would essentially have all the machine's resources available to your db server. That should be close enough to bare metal performance. Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net/centos CentOS 5.4 VPS with unmetered bandwidth only $25/month! No overage charges, 7 day free trial, PayPal, Google Checkout ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS] Get Me Outta Here! Web site security issue
The user gets a warning saying that site identity could not be verified and the user can add an exception if they want. Those are SSL Cert warnings. You will get to get a signed cert to avoid them. SSL Certs are pretty cheap now. http://startssl.org will generate certs for free but you have to register and jump through a few hoops. Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net/centos CentOS 5.4 VPS with unmetered bandwidth only $25/month! No overage charges, 7 day free trial, PayPal, Google Checkout ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Apache/Cluster issue -- Single public IP address
Is this the end of the road, for installing apache as a service with ONE public IP address?? If I understand clustered services, you have only one public IP address for the cluster, but that IP address needs to be a virtual IP which can be point to one or more machines on private IP adresses. We have had good success creating HA services using mysql master-master replication. Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net Host Joomla!, Wordpress, phpBB, or vBulletin for $25/mo Unmetered bandwidth = no overage charges, 7 day free trial ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Software RAID1 Disk I/O
[r...@server ~]# uptime 17:20:54 up 7 days, 3:26, 2 users, load average: 3.41, 2.93, 2.89 I think you need to investigate what is causing the load to be high. In my experience, software RAID causes some CPU load, but it should not be sustained unless you have something doing continuous disk IO. Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net CentOS 5.4 VPS with unmetered bandwidth only $25/month! No overage charges, 7 day free trial, PayPal, Google Checkout ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] chroot problem.
Frank: chroot: cannot run command `/bin/bash': No such file or directory Do you have selinux disabled or enabled? Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net CentOS 5.4 VPS with unmetered bandwidth only $25/month! No overage charges, 7 day free trial, PayPal, Google Checkout ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] OT: What are the 2 openssl commands I need to use?
Lanny: discovered that openssl is not available to me You should be able to do a yum install openssl. Do you have root access to the server? Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net CentOS 5.4 VPS with unmetered bandwidth only $25/month! No overage charges, 7 day free trial, PayPal, Google Checkout ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Sparc?
Jason: Are there any CentOS versions that support Sparc? Check out http://sparc.centos.org Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net CentOS 5.4 VPS with unmetered bandwidth only $25/month! No overage charges, 7 day free trial, PayPal, Google Checkout ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Future of MySQL
Personally I'd like to see it go down so more people will start supporting PostgreSQL - which is a far better database anyway Does PostgreSQL have non-transactional tables like MySQL? I am not trying to start a holy war, just asking since I do not know. Thanks, Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net CentOS 5.4 VPS with unmetered bandwidth only $25/month! No overage charges, 7 day free trial, Google Checkout accepted ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Virtualization Howto
Matt: It goes into how to make your own cloud. Is there a similiar howto anywhere for CentOS 5.4 or anything? Does the RHEL Virtualization Guide help? http://www.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5.4/html/Virtualiz ation_Guide/index.html Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net CentOS 5.4 VPS with unmetered bandwidth only $25/month! No overage charges, 7 day free trial, Google Checkout accepted ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Anyone using fedora as guest/vm on Centos
I just want to know if someone have any experience with fedora installed as guest/VM on Centos. Take a look at this page: http://www.linux-kvm.org/page/Guest_Support_Status for KVM support for specific guests. I hope this helps, Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net CentOS 5.4 VPS with unmetered bandwidth only $25/month! No overage charges, 7 day free trial, Google Checkout accepted ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] OT: How can I tell if a web site is now blocking IPs frommy country?
Lenny: days, Mozilla Firefox just hangs connecting to How can I tell if they have started blocking IP addresses from Colombia? Try using a few traceroute servers to see if other IP addresses from Colombia other countries are able to get to them. Other than that, I don't think you can tell from the outside. Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net CentOS 5.4 VPS with unmetered bandwidth only $25/month! No overage charges, 7 day free trial, Google Checkout accepted ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS-virt] Slightly OT: FakeRaid or Software Raid
I have had great luck with nvidia fakeraid on RAID1, but I see there are preferences for software raid. I have always heard that fakeraid and software RAID perform the same. Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net CentOS 5.4 VPS with unmetered bandwidth only $25/month! No overage charges, 7 day free trial, Google Checkout accepted ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS-virt] KVM Support for Windows Server 2003 32 bit ready for production?
Hello: I am wondering if KVM is ready for production for running a Windows Server 2003 32 bit guest. According to the RHEL 5.4 virtualization guide, there is supposed to be a virtio-win yum package, but that was not released. Instead, it looks like that is only available for RHN subscribers. Also, I saw this posting on the CentOS list: --- Quoted from CL Martinez There are freely redistributable, but still they aren't published by upstream. You can use these instead: http://www.linux-kvm.com/content/windows-binary-virtio-drivers-finally-relea sed, but there are a lot of problems with any windows 64 bits. And another problem, a big really, is that you can¡t install a windows kvm guest directly to a virtio disk. First you need to install to an ide disk, after generate a virtio disk and attach to win guest, install the virtio driver and last remove ide drive ... very very ugly. End Quote That seems to imply things are still not ready for production use. Any opinions? Thanks, Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net CentOS 5.4 VPS with unmetered bandwidth only $25/month! No overage charges, 7 day free trial, Google Checkout accepted ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS] Small proxy appliance hardware
I need to configure a small proxy appliance which doesn't require a lot of CPU power I need something with UL/CSA/CE approvals I recommend you look at the Supermicro 5015A-H: http://www.supermicro.com/products/system/1U/5015/SYS-5015A-H.cfm?typ=H The server is RoHS compliant and the power supply has these approvals: USA - UL listed, FCC Canada - CUL listed EN 60950/IEC 60950-Compliant Europe/CE Mark Germany - TUV Certified This would be more flexible than anything else. It already has ethernets and there would not be any compatability issues. I hope it helps, Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net CentOS 5.4 VPS with unmetered bandwidth only $25/month! No overage charges, 7 day free trial, Google Checkout accepted ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Small proxy appliance hardware
The Realtek 8111C gigabit controller is supported by RH/Centos? Even at install time? I have used many different Supermicro servers and never had any problems installing CentOS and everything works out of the box. Looking at the wiki page: http://wiki.centos.org/AdditionalResources/HardwareList/RealTekRTL8111b It looks like sometimes it works and other times it requires a custom driver. I did not realize there was a potential issue with that server. I wish I had one to test to say for sure. Thanks for the heads up! Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net CentOS 5.4 VPS with unmetered bandwidth only $25/month! No overage charges, 7 day free trial, Google Checkout accepted ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] rndc start fails with rndc: connect failed: connectionrefused
rndc: connect failed: connection refused
Here is what works for me:
cd /var/named/chroot/etc
rndc-confgen rndc.key
chown root.named rndc.key
vi rndc.key and remove everything except the key section.
vi /var/named/chroot/etc/named.conf and
copy the rndckey from /var/named/chroot/etc/rndc.key
into this section
key rndckey {
algorithm hmac-md5;
secret [RNDC key];
};
I hope this helps,
Neil
--
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Re: [CentOS] RAIDs and JBOD?
On Mon, 2009-11-16 at 21:49 +, James Bensley wrote: So I have found this card and wondered if anyone has a second opinion on it (http://www.supermicro.com/products/accessories/addon/AOC-SAT2-MV8.cfm). Seeing as it states on the website that the CD that comes with the card has RedHat drivers on it, and I will be using CentOS 5.4 i386 on my little home server everything should work just dandy shouldn't it? Supermicro has a good pre-sales team. I would call them and ask. They should be able to give you a definitive answer. -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net CentOS 5.4 VPS with unmetered bandwidth only $25/month! 7 day no risk trial, Google Checkout accepted ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Virtualization option at firstinstall CentOS-5.4 x86_64
Dave: In the Red Hat 5 Virtualization documentation it seems to strongly recommends having at least one physical cpu per VM. Since I have a quad core and I want to run the host plus 2-3 VMs, I decided give each VM one virtual cpu. Maybe I was too cautious. In section 28.4 of the RHEL 5.4 Virtualization Guide, they state: Virtualized CPUs are overcommitted best when each virtualized guest only has a single VCPU. The Linux scheduler is very efficient with this type of load. KVM should safely support guests with loads under 100% at a ratio of 5 VCPUs Overcommitting single VCPU virtualized guests is not an issue. So, if you are going to overcommit CPUs, make sure each one of the guests has a single VCPU. If you want to allocate multiple VCPUs to the guests, do not overcommit the CPUs. I hope this helps, Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net CentOS 5.4 VPS with unmetered bandwidth only $25/month! 7 day no risk trial, Google Checkout accepted ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS-virt] Virsh shutdown all command?
Kai: Is there a command in virsh to shutdown all domains? Not sure, but might xend or xendomains stop do this? I am using KVM so I don't think that will work for me. Do you know of something similar for KVM? Thanks, Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net CentOS 5.4 VPS with unmetered bandwidth only $25/month! 7 day no risk trial, Google Checkout accepted ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Virsh shutdown all command?
Ed: Is there a command in virsh to shutdown all domains? I use a script to shutdown my domains. Thank you for the script. I will play with it to see if I can get it to work. Thanks, Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net CentOS 5.4 VPS with unmetered bandwidth only $25/month! 7 day no risk trial, Google Checkout accepted ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS] 32bit development on x86-64
You can always run VMware server or virtualbox and install a complete 32 bit system on the same host for a real build/test environment. Don't forget about KVM. It just a yum install. Neil -- Neil Aggarwal, (281)846-8957, http://JAMMConsulting.com CentOS 5.4 VPS with unmetered bandwidth only $25/month! 7 day no risk trial! http://UnmeteredVPS.net for details. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] software installation - good practice
Carlos: I tend to try out many open source apps/packages I make a separate directory for each application in /usr/local so they are isolated from each other. You can also use KVM to set up virtual machines to be able to test and then drop the entire VM if you don't like it. That will keep your main system completely clean. Neil -- Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net CentOS 5.4 VPS with unmetered bandwidth only $25/month! 7 day no risk trial, Google Checkout accepted ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] KVM + KSM?
Lucian: Hmm.. It seems KSM is already included, dumb me! modinfo ksm filename: /lib/modules/2.6.18-172.el5/weak-updates/kmod-kvm/ksm.ko That is good to know. I did not realize it was installed on my system either! Thanks, Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Cluster server options?
Scott: Some code is designed for a single, powerful workstation. I'd like this cluster to act as one powerful workstation. I think your application has to be designed to run in a cluster environment. Splitting up a job into multiple streams of execution requires some the application to coordinate the different pieces that are running. Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Free or low cost online backup?
Hello: Does anyone know a free or low cost online backup system for CentOS? Thanks, Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Free or low cost online backup?
John: tar(1) I can use that on the server, but what is the other side to store the files? I want the storage to be remote. Thanks, Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] RAID 10 on Install?
How can I RAID 10 on install? Does anyone know if this approach: http://www.howtoforge.com/install-ubuntu-with-software-raid-10 Will work for CentOS? Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] vnc for non-root
Ken: Is it possible to make the ssh connection connecting to a linux box from a windows machine. I use cygwin ssh to connect CentOS servers from my windows laptop. Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Infrastructure HELP!
If you want speed, use RAID 10. Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime -Original Message- From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of ML Sent: Thursday, October 29, 2009 12:57 PM To: CentOS mailing list Subject: [CentOS] Infrastructure HELP! Hi Everyone, I started a social networking site and I am getting ready to go live next week. I have limited fund as I am not funded yet (although hopefully soon). I have an extra Mac Pro (I know, how can I possibly call a Mac Pro dual 2.8 quad core with 16gb RAM extra). So Mac Pro quad Core, 16gb RAM, 4 x 1tb RAID level Seagate drives. I was going to load CentOS 5.4 on it, web, mysql etc, etc. This is really the only box I have that would handle the site it it takes off and then I would need to add more hardware and most hosting to RackSpace or something. My question is about initial setup. The 4 x 1TB drives. How to set this up for I have some protection? RAID 0+1? (striped + mirrored) I would end up with 2TB useable space. RAID 5? so what one is a hot spare? 3TB useable space? What about striping the 4 1TB and mirroring that to a 4 x 1tb External drive enclosure? I want to be sure the data is protected, but machine resources and money are limited. Thoughts are appreciated! ___ 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] Infrastructure HELP!
RAID 10 is striping across mirrored drives. So, if you have 4 x 1TB drives, think of it as two separate 1 TB volumes. The system will write half your data to volume A and the other half to volume B. The data in volume A and B do not overlap. Now, each volume is composed of a mirrored set of drives. Anything written to volume A is actually stored on two drives. Anything written to volume B is actually stores on the other two drives. Does this make sense? Let me know if you need any more explanation. Also, when you move to a hosted solution, I would appreciate your considering my company for it. Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime -Original Message- From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of ML Sent: Thursday, October 29, 2009 1:03 PM To: CentOS mailing list Subject: Re: [CentOS] Infrastructure HELP! Neil, Can you explain how RAID 10 would work with 4 x 1tb drives? Should I just get 2 x 2tb drives and mirror? I probably dont need 4 x 1tb drives to start, maybe even 2 x 2tb. I can't image this growing faster than I can get money to add more equipment, move to Co-Lo, etc. On Oct 29, 2009, at 10:59 AM, Neil Aggarwal wrote: If you want speed, use RAID 10. Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime -Original Message- From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of ML Sent: Thursday, October 29, 2009 12:57 PM To: CentOS mailing list Subject: [CentOS] Infrastructure HELP! Hi Everyone, I started a social networking site and I am getting ready to go live next week. I have limited fund as I am not funded yet (although hopefully soon). I have an extra Mac Pro (I know, how can I possibly call a Mac Pro dual 2.8 quad core with 16gb RAM extra). So Mac Pro quad Core, 16gb RAM, 4 x 1tb RAID level Seagate drives. I was going to load CentOS 5.4 on it, web, mysql etc, etc. This is really the only box I have that would handle the site it it takes off and then I would need to add more hardware and most hosting to RackSpace or something. My question is about initial setup. The 4 x 1TB drives. How to set this up for I have some protection? RAID 0+1? (striped + mirrored) I would end up with 2TB useable space. RAID 5? so what one is a hot spare? 3TB useable space? What about striping the 4 1TB and mirroring that to a 4 x 1tb External drive enclosure? I want to be sure the data is protected, but machine resources and money are limited. Thoughts are appreciated! ___ 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 ___ 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] Infrastructure HELP!
Would 2 x 1TB enterprise drives be enough mirrored? Are you going to to software RAID1 or hardware? I find software RAID1 bogs down for intensive database applications. NOTE: Host based RAID is the same as software RAID. You will need an actual external RAID card like one from Areca. Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Infrastructure HELP!
If I can find a cheap enough RAID Card that wil fit the Mac Pro, I would do hardware RAID, but Apple wants $699 for theirs... $699 is pretty steep, but RAID cards are not cheap. They are worth it for performance though. If you don't need absolute performance, software RAID will work. Give with multiple smaller drives instead of two larger ones. Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Infrastructure HELP!
Is software RAID 10 decent performance? Given that you are just starting out, go with SW raid10. When your usage grows, plan to move to hardware raid or a hosted solution. Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Infrastructure HELP!
Matt: Everyone I know recommends Areca cards. Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime -Original Message- From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of Matt Sent: Thursday, October 29, 2009 3:44 PM To: CentOS mailing list Subject: Re: [CentOS] Infrastructure HELP! $700, eesh. You can get some nice Areca cards for much less than that. What is the cheapest SATA hardware raid card I can get at newegg.com? Seems like most turn out not to be true hardware raid that I have found and will not run on CentOS 4.8 without a great deal of grief. Matt ___ 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] Infrastructure HELP!
Not a direct answer to your question, but be careful of SATA drives. Seagate does make enterprise SATA drives. -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] vnc for non-root
Ken: You can set the machine up to use VNC for the console. Then, give the person a normal login which they will use to login to the machine from the console interface. Basically, it will be just like they are sitting at the machine a logging in with a user account. I would also require the VNC to be tunneled through SSH for encryption since VNC does not do that internally. Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime -Original Message- From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of ken Sent: Wednesday, October 28, 2009 3:57 AM To: CentOS Mailing List Subject: [CentOS] vnc for non-root At work I've been asked to set up vnc for a remote user (a vendor sysadmin to install 3d party software we've purchased). Of course I'm a bit skittish about allowing root access to this. Is there a way to configure vnc so that root cannot log in through it...? Or do I have to use some other utility to deny root access (e.g., securetty). Thanks, folks. -- War is a failure of the imagination. --William Blake ___ 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] /etc/aliases file wildcard
machine*: myaccount would take any name matching machine* and forward onto the myaccount mailbox. Would putting a wildcard in /etc/mail/virtusertable solve the problem? Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Scripting help please....
I wonder if you can do this in two steps: 1. Parse out the unique values from the thrid column into a file. 2. Run the processor on the script to print where the third column matches one of the values identified. I dont know how to do this in a script. I would write a simple Java program to do it. Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com http://www.jammconsulting.com/ CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime _ From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of Truejack Sent: Wednesday, October 28, 2009 12:10 PM To: centos@centos.org Subject: [CentOS] Scripting help please Need a scripting help to sort out a list and list all the duplicate lines. My data looks somethings like this host6:dev406mum.dd.mum.test.com:22:11:11:no host7:dev258mum.dd.mum.test.com:36:17:19:no host7:dev258mum.dd.mum.test.com:36:17:19:no host17:dev258mum.dd.mum.test.com:31:17:19:no host12:dev258mum.dd.mum.test.com:41:17:19:no host2:dev258mum.dd.mum.test.com:36:17:19:no host4:dev258mum.dd.mum.test.com:41:17:19:no host4:dev258mum.dd.mum.test.com:45:17:19:no host4:dev258mum.dd.mum.test.com:36:17:19:no I need to sort this list and print all the lines where column 3 has a duplicate entry. I need to print the whole line, if a duplicate entry exists in column 3. I tried using a combination of sort and uniq but was not successful. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Change from Root
Did you remove the # in front of the line? You still have it in your example. -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com http://www.jammconsulting.com/ CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime _ From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of Victor Subervi Sent: Tuesday, October 27, 2009 9:52 AM To: CentOS mailing list Subject: Re: [CentOS] Change from Root What I was interested in doing was to make it impossible for root to login directly, but rather enable other users to login and then su to root. So I edited /etc/ssh/sshd_config to read: #PermitRootLogin no (It was the dir I didn't know.) It initially said yes, but it was and is commented. How is it that I then and still can login directly as root? Is reboot necessary? TIA, V On Mon, Oct 26, 2009 at 4:17 PM, Neil Aggarwal n...@jammconsulting.com wrote: I am not sure what a VPS is VPS stands for virtual private server. Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU, 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW ___ 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] Change from Root
Victor: Also, check out section 4.4.2 of the security guide: http://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/security-guide/s 1-wstation-privileges.html It addresses your question precisely. Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com http://www.jammconsulting.com/ CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime _ From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of Victor Subervi Sent: Tuesday, October 27, 2009 9:52 AM To: CentOS mailing list Subject: Re: [CentOS] Change from Root What I was interested in doing was to make it impossible for root to login directly, but rather enable other users to login and then su to root. So I edited /etc/ssh/sshd_config to read: #PermitRootLogin no (It was the dir I didn't know.) It initially said yes, but it was and is commented. How is it that I then and still can login directly as root? Is reboot necessary? TIA, V On Mon, Oct 26, 2009 at 4:17 PM, Neil Aggarwal n...@jammconsulting.com wrote: I am not sure what a VPS is VPS stands for virtual private server. Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU, 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW ___ 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] EMC CX4 Clariion
We had received a new EMC storage (Clariion CX4) and the EMC analist has told us that CentOS aren't on their support list, but RHEL are :) I have always taken the stance that if something works with RHEL, it will work with CentOS. Have not had a problem yet. Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] EMC CX4 Clariion
'The vendors' that supply 'enterprise-grade hardware and software' (as EMC, Oracle etc do, e.g.) will never give you *support* for your machine, running CentOS, connected to their stuff. That is a good point. I am ready to deploy a RHEL test machine if the support people insist on that, but they will usually listen to a problem with their stuff as long as we focus on their side of things. Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Change from Root
I am not sure what a VPS is VPS stands for virtual private server. Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU, 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Switch to measure traffic at IP level?
I think I have a solution: In the guests' XML files, I set a target device name so they will always use a known device (Instead of getting an aribtrary vnet* device). Next, using snmp on the host, I can get the interface stats for that device and use cacti to graph it. Thanks to everyone for the help, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS-virt] Need info on vnet mapping to guests
Hello: I have a host running two KVM guests. The guests use br0 and each has a static IP address. I am trying to figure out if there is a way to use snmpd on the host to measure the traffic usage of the guests. I do not want to require anything running on the guests since I do not control them. Looking at netstat -in on the host, I see this info: Kernel Interface table Iface MTU MetRX-OK RX-ERR RX-DRP RX-OVRTX-OK TX-ERR TX-DRP TX-OVR Flg br01500 0 237609 0 0 013615 0 0 0 BMRU eth0 1500 0 967594 0 0 0 354576 0 0 0 BMRU lo16436 0 63 0 0 0 63 0 0 0 LRU virbr0 1500 00 0 0 0 32 0 0 0 BMRU vnet0 1500 029802 0 0 0 306940 0 0 0 BMRU vnet1 1500 0 311556 0 0 0 789331 0 0 0 BMRU Looking at the firewall logs for packets that hit the firewall, I see that vnet1 is connected to guestA and vnet0 is connected to guestB. Is there a better way to determine which vnet is connected to which guest? Also, does the mapping change when I stop and start guests or reboot the host? Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS] Switch to measure traffic at IP level?
Hello all: Is there a network switch that will give me traffic stats at an IP address level? Right now, I only get statstics at a port level, but that does not help since each of my servers run several virtual machines and I need to measure traffic per virtual machine. Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Switch to measure traffic at IP level?
Nate: Thanks for the suggestion. I am looking into it now. Currently, I use Cacti to graph the data coming from my switches. Do you know if that will that work with any of these switches? Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. -Original Message- From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of nate Sent: Friday, October 23, 2009 8:50 AM To: centos@centos.org Subject: Re: [CentOS] Switch to measure traffic at IP level? Neil Aggarwal wrote: Hello all: Is there a network switch that will give me traffic stats at an IP address level? any of these can: http://www.sflow.org/products/network.php Myself I'm biased towards Extreme networks having used them for almost 10 years now, very easy to use. nate ___ 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] Switch to measure traffic at IP level?
http://www.sflow.org/products/collectors.php ntop would probably be the main free flow based monitor, though there are some really really nice commercial products. I just need something that gives me a usage graph at daily, weekly, and monthly intervals with a 95% line. It looks like ntop works with RRD so that seems like a good solution. Thanks for your help! Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Switch to measure traffic at IP level?
Can one setup a Linux server to offer sflow? If the Linux host can run sflow, then it's easy to capture the bandwidth usage on the host? That is a good idea. Since we have to have the host OS running, it might be able to do the collection activities for us. If anyone has a soution for this, I am interested in more info. I'm sitting with the same problem, and rely on snmpd on each VPS, but this isn't ideal - especially if clients disable snmpd I agree. I do not want a solution that depends on software installed on the guest since the client has control of that. Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Switch to measure traffic at IP level?
Alternately you could use something like Munin to monitor on the box itself. I took a look and I think it requires software running on each guest to report the data back to the centralized system. Is that correct? If so, I am looking for a solution that does not require any software on the guest machines. Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Switch to measure traffic at IP level?
Matt: why not just use your current cacti setup and enable snmp on each of the hosts? That seems like the simplest and cheapest approach. As I understand it, I would actually have to enable snmp on each of the guests, not the hosts. Am I wrong? Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Switch to measure traffic at IP level?
Matt: depending on what your using for virtualization, you might be able to pull all of those stats with snmp on the host. I am using KVM on CentOS 5.4 Let me know if you think it is possible to gather everything I need at the host without requirining anything from the guests. Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] What about port mirroring? (Was: Switch to measure traffic at IP level)
Hello everyone: I was just reading an ntop guide and it mentioned many switches have port mirroring. According to what I am reading, the Cisco I am using will copy all traffic to the mirror port. Then, I can monitor what is going on from there. That seems like a good way to do this. Are there any pitfalls with this approach? Would ntop be a good tool for it? I would like to graph total bytes in and out as well as 95% usage on an IP address level. I would like daily, weekly, and monthly graphs. Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] What about port mirroring? (Was: Switch to measure traffic at IP level)
yeah, a 1gig port can't handle all the traffic from N 1gig ports. heck, ti can't even handle all the traffic from a single full duplex connection That is a good point. My traffic is light right now so I might be able to use it until the traffic grows. Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Recommendation for PCI-e SATA RAID 5 card?
Hello: I am looking for a recommendation for a PCI-e RAID card for my server. The server has a PCI-e x16 low profile slot so the card has to be at most 6.6 inches long x 2.536 inches high. I would like to use RAID 5 with 3 drives so I have to have those capabilities. It has to be CentOS 5.4 compatible (Of course!). I took a look at the offerings from 3Ware, but their cards are too long. If you have a card you are happy with, I would appreciate a recommendation. Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS-virt] Error setting up bridge with static IP address
Hello: I am trying to follow the RHEL virtualization guide to set up a bridge on a system running CentOS 5.4. I copied my ifcfg-eth0 to ifcfg-eth0:1 and set its content to this: DEVICE=eth0:1 HWADDR=[The MAC address from eth0] ONBOOT=yes BRIDGE=br1 I then created ifcfg-br1 with this content: DEVICE=br1 TYPE=Bridge BOOTPROTO=static BROADCAST=192.168.2.255 IPADDR=192.168.2.202 NETMASK=255.255.255.0 NETWORK=192.168.2.0 ONBOOT=yes DELAY=0 When I do service network restart, I get this error: error in ifcfg-eth0:1: didn't specify device or ipaddr I specified the device so it looks like it wants an IP address but that is contrary to what I am reading on the Internet. Any ideas what went wrong? Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Error setting up bridge with static IP address
I downloaded the DVD iso using the torrent file from one of the mirrors showing it. -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. -Original Message- From: centos-virt-boun...@centos.org [mailto:centos-virt-boun...@centos.org] On Behalf Of Ben M. Sent: Tuesday, October 20, 2009 1:26 PM To: Discussion about the virtualization on CentOS Subject: Re: [CentOS-virt] Error setting up bridge with static IP address Are you using the leaked copy of 5.4 or is it showing on some of the mirrors now? Neil Aggarwal wrote: Actually, this worked. I am able to SSH to the box on the 192.168.2.200 IP address. I had a typo in my ssh command. Sorry for any confusion. Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. -Original Message- From: centos-virt-boun...@centos.org [mailto:centos-virt-boun...@centos.org] On Behalf Of Neil Aggarwal Sent: Tuesday, October 20, 2009 1:11 PM To: 'Discussion about the virtualization on CentOS' Subject: Re: [CentOS-virt] Error setting up bridge with static IP address I did some more reading on the Internet and it looks like I am supposed to set up the bridge on eth0 and configure the bridge with the IP address of the host. So, I removed ifcfg-eth0:1 and changed ifcfg-eth0 to this: DEVICE=eth0 HWADDR=[The MAC address] ONBOOT=yes BRIDGE=br0 I removed ifcfg-br1 and created ifcfg-br0 with this content: DEVICE=br0 TYPE=Bridge BOOTPROTO=static BROADCAST=192.168.2.255 IPADDR=192.168.2.200 NETMASK=255.255.255.0 NETWORK=192.168.2.0 ONBOOT=yes DELAY=0 I don't get any errors when I do service network restart but now I can't ssh to the host using the 192.168.2.200 IP address. I also tried setting these values in /etc/sysctl.conf: net.bridge.bridge-nf-call-ip6tables = 0 net.bridge.bridge-nf-call-iptables = 0 net.bridge.bridge-nf-call-arptables = 0 net.ipv4.ip_forward = 1 and rebooting the machine. That did not help. Any ideas? Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS] Don't have scaling_available_frequencies files
Hello all: I am trying to follow the RHEL virtualization guide. According to Chapter 17, I have a processor without a constant Time Stamp Counter (Its an Opteron). According to that guide, I need to set the MIN_SPEED and MAX_SPEED variables in /etc/sysconfig/cpuspeed to the highest frequency show in /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_frequencies I took a look at my system (CentOS 5.4) and there are no cpufreq directories in the cpu folders. Is that a problem? Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Don't have scaling_available_frequencies files
I took a look at my system (CentOS 5.4) and there are no cpufreq directories in the cpu folders. I think that's probably because the associated driver is not loaded. I did some reading on the cpufreq and actually think it is better that it is not enabled. Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Is AMD rev F the same thing as socket F?
Hello: I am looking at the RHEL 5.4 virtualization guide. According to Chapter 17, if I want to use KVM on my machine, I need to check if it has the constant Time Stamp Counter by running this: cat /proc/cpuinfo | grep constant_tsc When I do that on the server (Currently running CentOS 5.3), I do not get any output. According to the output, that means my system does not have the counter. It then gives me instructions for AMD revision F CPUs. I did a search and did not find anything that seems relevant to revision F. The only stuff I am finding is talking about socket F. Is that the same things as a Socket F CPU or something different? Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Is AMD rev F the same thing as socket F?
Akemi: http://www.chiplist.com/AMD_Athlon_64_processor/tree3f-section--2103-/ I have an Opteron. I don't see a similar listing for those. Do you? Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Is AMD rev F the same thing as socket F?
Akemi: http://www.chiplist.com/new/processor_specifications/ Well, according to CPU info, I have: vendor_id : AuthenticAMD cpu family : 15 model : 65 model name : Dual-Core AMD Opteron(tm) Processor 2210 stepping: 2 cpu MHz : 1809.490 cache size : 1024 KB physical id : 0 siblings: 2 core id : 0 cpu cores : 2 apicid : 0 fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdts cp lm 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy bogomips: 3622.54 TLB size: 1024 4K pages clflush size: 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: ts fid vid ttp tm stc The closest match in that list is: AMD Opteron DP 2000 series Dual-Core processor (Santa Rosa, Rev. F) So, I guess my processor is a Rev F processor. I will follow the instructions in the virtualization guide. Thank you, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. -Original Message- From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of Akemi Yagi Sent: Sunday, October 18, 2009 11:16 AM To: CentOS mailing list Subject: Re: [CentOS] Is AMD rev F the same thing as socket F? On Sun, Oct 18, 2009 at 8:53 AM, Neil Aggarwal n...@jammconsulting.com wrote: Akemi: http://www.chiplist.com/AMD_Athlon_64_processor/tree3f-section--2103-/ I have an Opteron. I don't see a similar listing for those. Do you? Thanks, Neil I see some here: Akemi ___ 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] the ongoing wait for centos 5.4
I am burning the DVD ISO image to disk right now. It is available from some mirrors. which are mostly incomplete... maybe some isos are ok but even the centos.org machines are not yet in sync... I would strongly suggest that you wait for the actual announcements, but ymmv. This leads me to a question: If I use BitTorrent to download the DVD image from tracker.centos.org, I assume the file has to be complete or could it still be missing something? Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 5.4? anyone?
Soon means soon ... we have to get the tree stable on many servers before we can make it available. This stuff takes time. I think this is the major source of this latest flurry about the release date. The twitter posting from KB said soon and then things went quiet for 2 days without any additional information posted. As a matter of fact, there is still nothing posted to the blog. I think most people assume soon is sometime that day or the next. By saying that, KB unfortunately set people's expectations to a shorter timeframe than what reality needed. We all understand things take time. We can all accept that, but its hard to gauge how long things take when we are not involved in the process. We are looking to the developers to help us set our expectations correctly. Johnny's post on the centos mirror announce list was a much better posting: The CentOS 5.4 tree will begin syncing out on the CentOS and CentOS-incdvd targets in the next 24-48 hours That sets people's expectations to a timeframe without any misinterpretation. Please do not take this posting as negative or complaining. I am trying to offer constructive criticism to help avoid some of these misunderstandings in the future. Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Cant map Apache DAV network place to network drive
Hello: I have set up a DAV file system on my apache server using these directives in ssl.conf: Alias /files /var/www/files Directory /var/www/files Dav On AuthType Basic AuthName Filesystem access AuthUserFile /var/www/files.passwd require valid-user Options Indexes /Directory On my client machine (Windows XP SP3), I am able to add the https location as a network place. But, when I go to map the network place as a network drive, I can browse to the network place and see the folders, but the OK button is always greyed out. Is there something wrong in my Apache config or is Windows being obtuse? Does anyone know how to fix this? Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Can't get forwarding to work
Hello all: I am having trouble getting port forwarding with iptables to work. I have this configuration: Internet --- Linux machine --- Windows machine The windows machine is set up to listen on IP address 10.0.0.31 I am able to use lynx to connect to http://10.0.0.31 on the linux machine so there is no problem going from the linux machine to the windows machine. I have tied a public IP address a.b.c.d to the linux machine and entered these rules in its firewall: /sbin/ifconfig eth0:1 $WIN_EXTERNAL_IP netmask $ETH0_NETMASK broadcast $ETH0_BCAST /sbin/iptables -t nat -A PREROUTING -p tcp -i eth0 -d $WIN_EXTERNAL_IP --dport 80 -j DNAT --to $WIN_INTERNAL_IP:80 /sbin/iptables -A FORWARD -p tcp -i eth0 -d $WIN_INTERNAL_IP --dport 80 -j ACCEPT I have this log entry at the bottom of the firewall rules: /sbin/iptables -A FORWARD -j LOG --log-prefix FORWARD When I try to go to the external IP address http://a.b.c.d from another network, I get an error. Any ideas? Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Can't get forwarding to work
Hello: I changed my rules to these: /sbin/iptables -t nat -A PREROUTING -d $WIN_EXTERNAL_IP -j DNAT --to $WIN_INTERNAL_IP /sbin/iptables -t nat -A POSTROUTING -s $WIN_INTERNAL_IP -j SNAT --to $WIN_EXTERNAL_IP And I am still not seeing anything log on the firewall log and the connection is not working. Any ideas? Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Can't get forwarding to work
This is interesting: When I go to lynx http://a.b.c.d on the linux machine, I get the CentOS test page. This looks like the connection is not forwarding, it is just going to the local machine. Any ideas? Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. -Original Message- From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of Neil Aggarwal Sent: Sunday, October 04, 2009 8:15 PM To: 'CentOS mailing list' Subject: Re: [CentOS] Can't get forwarding to work Hello: I changed my rules to these: /sbin/iptables -t nat -A PREROUTING -d $WIN_EXTERNAL_IP -j DNAT --to $WIN_INTERNAL_IP /sbin/iptables -t nat -A POSTROUTING -s $WIN_INTERNAL_IP -j SNAT --to $WIN_EXTERNAL_IP And I am still not seeing anything log on the firewall log and the connection is not working. Any ideas? Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. ___ 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
