Re: [CentOS] updating pandoc and converting to UTF-8
Hi John, I got this figured out finally! The answer was to get the binaries for Haskell Platform, get the canal-install source and compile that, set a path variable to these directories. Works. Thank You. Jason On Fri, Nov 7, 2014 at 2:04 AM, John Doe jd...@yahoo.com wrote: From: Jason T. Slack-Moehrle slackmoeh...@gmail.com I need to run pandoc. (http://johnmacfarlane.net/pandoc/installing.html) How can I update to the latest? Yum doesn't have anything more that I can see. The page says: If the version in your repository is too old, use the instructions below under All platforms Or upgrade to CentOS 7 maybe... it seems to have 1.12.x Also, is there a tool like 'iconv' on OS X where I can convert between encodings? It seems when moving this from OS X to Linux I am getting a few encoding errors when building my project. iconv is/should already be installed... /usr/bin/iconv JD ___ 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] updating pandoc and converting to UTF-8
Hi guys, I need to run pandoc. (http://johnmacfarlane.net/pandoc/installing.html) I did this: rpm -ivh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm yum install -y pandoc This is version 1.9.4.1 They are up to 13.1.1. How can I update to the latest? Yum doesn't have anything more that I can see. Also, is there a tool like 'iconv' on OS X where I can convert between encodings? It seems when moving this from OS X to Linux I am getting a few encoding errors when building my project. Thoughts are appreciated. Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS 6.5 equivalents in CentOS 7
I tried to install CentOS 7 on a new system. It works. However, I'm noticing small things: 1. system-config-network-tui is not installed and yum cannot find it. I realized for this -- nmtui What about firewall? I can't seem to understand the replacement from system-config-firewall-tui Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Wow! Double wow!
in my enterprise world, production systems are fully redundant, and have staging servers running identical software configurations. all upgrades and upgrade procedures are tested on staging before being deployed in production.quite often, the staging systems double as the Disaster Recovery systems, but thats another story. virtually all production systems either have a schedulable downtime (2am sunday morning?), or support rolling upgrades with no downtime (such as our 24/7 factory operations where downtime == no product). personally, I'm very glad I work in development, where our informal SLA is more like 9-9 5 days/week (developers like to work late). Sounds like you have a dream job John! At the very least for a company that spends money on proper hardware! ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6.5 equivalents in CentOS 7
so I figured this out, I think: firewall-cmd --zone=public --add-port=2888/tcp --permanent but if is a known service, you can use: firewall-cmd --zone=public --add-service=http --permanent and then reload the firewall firewall-cmd --reload On Wed, Oct 29, 2014 at 5:50 PM, Jason T. Slack-Moehrle slackmoeh...@gmail.com wrote: I tried to install CentOS 7 on a new system. It works. However, I'm noticing small things: 1. system-config-network-tui is not installed and yum cannot find it. I realized for this -- nmtui What about firewall? I can't seem to understand the replacement from system-config-firewall-tui Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6.5 equivalents in CentOS 7
Thanks Marko for the reply. Soo I changed my ssh port in sshd_config and did: systemctl restart sshd.service. I then did: firewall-cmd --add-port=port/tcp firewall-cmd --permanent --add-port=port/tcp firewall-cmd --reload and for safety: systemctl restart firewalld and I get a connection:refused. so I decided to do systemctl stop firewalld and try again, still connection refused. Commented out the port line in sshd_config (so back to 22) and restart, works. so I am confused as to what is happening. I have done this 100 times in CentOS 6.x On Wed, Oct 29, 2014 at 7:13 PM, Marko Vojinovic vvma...@gmail.com wrote: On Wed, 29 Oct 2014 17:50:54 -0700 Jason T. Slack-Moehrle slackmoeh...@gmail.com wrote: I tried to install CentOS 7 on a new system. It works. However, I'm noticing small things: 1. system-config-network-tui is not installed and yum cannot find it. I realized for this -- nmtui What about firewall? I can't seem to understand the replacement from system-config-firewall-tui man firewall-cmd HTH, :-) Marko ___ 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 6.5 equivalents in CentOS 7
yes, so I just figured out. Thank you so much. Where does `semanage` come from? I tried policycoreutils-python but it cannot be found. On Wed, Oct 29, 2014 at 8:10 PM, Peter pe...@pajamian.dhs.org wrote: On 10/30/2014 03:41 PM, Jason T. Slack-Moehrle wrote: Soo I changed my ssh port in sshd_config and did: systemctl restart sshd.service. ... and I get a connection:refused. selinux is set to only allow sshd to listen on port 22, you need to do something like: semanage port -a -t ssh_port_t -p tcp Peter ___ 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] Booting using another kernel
Hi Guys, I am encountering this bug: https://bugs.centos.org/view.php?id=7656 I put in the CentOS 7 DVD and it starts to install and hangs with starting x. The suggestion was made in the bug report to boot using the 'kernel-ml' and to be honest I don't know how to do that. I build a machine that has 4 video cards in it. (2 x nVidia Geforce GT 970 and 2 x Sapphire Toxic R9 270x). Can anyone give me a hand? Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] OT: Would you purchase this hardware?
I have about $1200 to spend on 2 boxes and I'd like them to be identical. Very basic web serving, simple HTML5 video, light email serving. Looking around NewEgg, I come across: http://www.newegg.com/Product/Product.aspx?Item=9SIA65C1ZT3064 These use ECC unbuffered RAM which is expensive but I did find 8gb sticks for under $70 each: http://www.newegg.com/Product/Product.aspx?Item=N82E16820613386 I'd still have to add hard drives and more RAM and 2nd GB NICS. I also found out the power supply is non standard so if it goes in order to put in a standard power supply you need an adaptor: http://www.moddiy.com/products/IBM-Lenovo-PSU-Main-Power-24%252dPin-to-14%252dPin-Adapter-Cable-%2830cm%29.html I haven't purchased hardware in 2 years. I could even use a desktop system versus this server class. I feel like by time I add more to each box to make it run perhaps there is a better machine to buy? Anyway if anyone has any advice I'd appreciate it. These are personal funds, I don't want to make a poor decision. Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] file system replication
Hi Everyone, I need to keep 2 systems identical. Mostly e-mail directories, web directories, mysql, etc. The goal here is to have a 2nd system ready to go it the first one starts to exhibit hardware issues. What are options to have this happen? I'm going out on a limb and thinking rsync but I haven't used it past just simple use cases. Can anyone provide some insight for me? CentOS 6.5. Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] file system replication
Hi John, On Thu, Oct 9, 2014 at 10:44 AM, John R Pierce pie...@hogranch.com wrote: On 10/9/2014 10:39 AM, Jason T. Slack-Moehrle wrote: I need to keep 2 systems identical. Mostly e-mail directories, web directories, mysql, etc. The goal here is to have a 2nd system ready to go it the first one starts to exhibit hardware issues. What are options to have this happen? I'm going out on a limb and thinking rsync but I haven't used it past just simple use cases. Can anyone provide some insight for me? drbd is the live replication system, this does block level replication of logical volumes. rsync doesn't handle changing-on-the-fly stuff very well, especially stuff like a database file system which is undergoing constant random write activity. but note, the drbd slave copy can't be mounted until drbd is stopped, or all heck breaks loose. Just to clarify. What state is the slave in? If master goes down, how does the slave become active? Just reboot it and let it come up? The wording slave copy can't be mounted until drdb is stopped leads me to believe the slave is in some alternate state to be receiving the blocks of data. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] file system replication
Hi John, On Thu, Oct 9, 2014 at 12:53 PM, John R Pierce pie...@hogranch.com wrote: On 10/9/2014 11:57 AM, Jason T. Slack-Moehrle wrote: Just to clarify. What state is the slave in? If master goes down, how does the slave become active? Just reboot it and let it come up? The wording slave copy can't be mounted until drdb is stopped leads me to believe the slave is in some alternate state to be receiving the blocks of data. the slave is up and running, but the file systems you're replicating are unmounted, and its services are stopped, so you could consider this to be a 'standby' state. yes, to use drbd, its important that you put your email spools, databases, etc, on dedicated file system(s), NOT on the OS root file system. I generally use lvm for all this. a cluster management package, such as the ones suggested by another poster, would take care of all this for you (once you have things setup properly), if the master fails, it would 'activate' the slave, switch its IP[*] over to be the 'production' system, and mount its file systems, starting its services (mysqld, postfix, etc) per your configuration. [*] typically, you use THREE IP addresses for a HA cluster. a unique IP for each system, used only for management, and a 'service' IP used for the production accesses, which is held by the currently active system. when the master fails, the slave adopts this service IP. Thank you for this info. This clears up a lot and is very helpful. Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Fwd: CentOS list troubles
Karanbir, mark is currently moderated away from the list. Would you be able to help us understand what Mark did to have this happen? I ask since you recently sent the e-mail about list conduct. I think it would help us to understand what specifically you used for criteria to moderate in this case. Thanks for the clarification. Best, Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] NIC Throwing errors I dont understand
Hi Mark, I am having an issue where eth1 is throwing some messages and stops responding. Restarting networking doesn't work and also just bringing down eth1 with 'ifdown' doesn't fix it. I have never seen anything like these messages: eth1: no IPv6 routers present r8169 :03:00.0: eth1: rtl_counters_cond == 1 (loop: 1000, delay: 10). r8169 :03:00.0: eth1: rtl_chipcmd_cond == 1 (loop: 100, delay: 100). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). ... r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phy_reset_cond == 1 (loop: 100, delay: 1). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). snip r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: link up [root@mail jtsm]# lspci | grep -i net 02:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 01) Googling on rtl_counters_cond finds a lot of folks talking about laptop mode error, and somebody mentions zero configuration, which I assume they mean zeroconf. Is this a laptop? Is this wired or not? If it's wired, and not a laptop, I'd shut down avahi-daemon and chkconfig it off (and the same with NetworkMangler, er, Manager), and see what happens. I found those same resources. This is NOT a laptop and it is wired. Has been for a few years. I tried 'service avahi-daemon stop' and 'service NetworkManager stop' and both are unrecognized. Another possibility, if wired, check your patch cord, and make sure it's plugged in securely at both ends. I replaced the cable completely just in case and nada. Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] NIC Throwing errors I dont understand
I am having an issue where eth1 is throwing some messages and stops responding. Restarting networking doesn't work and also just bringing down eth1 with 'ifdown' doesn't fix it. I have never seen anything like these messages: eth1: no IPv6 routers present r8169 :03:00.0: eth1: rtl_counters_cond == 1 (loop: 1000, delay: 10). r8169 :03:00.0: eth1: rtl_chipcmd_cond == 1 (loop: 100, delay: 100). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phy_reset_cond == 1 (loop: 100, delay: 1). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: link up [root@mail jtsm]# lspci | grep -i net 02:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 01) DEVICE=eth1 HWADDR=00:0A:CD:17:07:7E TYPE=Ethernet UUID=800623a1-adc6-401a-a3fa-c6d1348056c8 ONBOOT=yes NM_CONTROLLED=yes BOOTPROTO=none IPADDR=10.0.254.11 PREFIX=24 #GATEWAY=10.0.254.1 DNS1=8.8.8.8 DNS2=8.8.4.4 Does anyone have any ideas or have experienced this before. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Network card throwing messages I dont understand
I am having an issue where eth1 is throwing some messages and stops responding. Restarting networking doesn't work and also just bringing down eth1 with 'ifdown' doesn't fix it. I have never seen anything like these messages: eth1: no IPv6 routers present r8169 :03:00.0: eth1: rtl_counters_cond == 1 (loop: 1000, delay: 10). r8169 :03:00.0: eth1: rtl_chipcmd_cond == 1 (loop: 100, delay: 100). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phy_reset_cond == 1 (loop: 100, delay: 1). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: rtl_phyar_cond == 1 (loop: 20, delay: 25). r8169 :03:00.0: eth1: link up [root@mail jtsm]# lspci | grep -i net 02:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 01) DEVICE=eth1 HWADDR=00:0A:CD:17:07:7E TYPE=Ethernet UUID=800623a1-adc6-401a-a3fa-c6d1348056c8 ONBOOT=yes NM_CONTROLLED=yes BOOTPROTO=none IPADDR=10.0.254.11 PREFIX=24 #GATEWAY=10.0.254.1 DNS1=8.8.8.8 DNS2=8.8.4.4 Does anyone have any ideas or have experienced this before. Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] default /etc/ssh/sshd_config?
Hello All, I was setting up a new server and I accidentally overwrote the default /etc/ssh/sshd_config. Can anyone bail me out with a vanilla copy? Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] default /etc/ssh/sshd_config?
That is way better. Thanks for the reminder that it is really that easy. On Wed, Dec 11, 2013 at 5:28 PM, John R Pierce pie...@hogranch.com wrote: On 12/11/2013 4:53 PM, Jason T. Slack-Moehrle wrote: ll, I was setting up a new server and I accidentally overwrote the default /etc/ssh/sshd_config. Can anyone bail me out with a vanilla copy? yum reinstall openssh-server -done- -- john r pierce 37N 122W somewhere on the middle of the left coast ___ 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] Do I need a dedicated firewall?
Hi All, So my electricity bill is through the roof and I need to pair down some equipment. I have a CentOS 6.5 Server (a few TB, 32gb RAM) running some simple web stuff and Zimbra. I have 5 static IP's from Comcast. I am considering giving this server a public IP and plugging it directly into my cable modem. This box can handle everything with room for me to do more. Doing this would allow me to power down my pfSense box and additional servers by consolidating onto this single box. I have the firewall on on the server and only allowing the few ports I need. I dont run ssh on 22 What do you guys think? Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Firewire 800 PCI-E card?
Hello All, I need to add a few Firewire 800 ports to the box I have running CentOS 6.4. I have an available PCI-E slot. Does anyone know of a Firewire 800 PCI-E card that is compatible with CentOS 6.4 out of the box? Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] 2nd NIC troubles
Hi All, I have 2 NICS in this system. CentOS 6.4 eth0 is the virtual IP from PFSense mapping connected to the router, works fine. eth1 is a second NIC that I have assigned a private IP to and connected it to a switch on the private network. I have many other private devices, so I know this setup works. When I connect the cable to the switch and bring up eth1 the system basically stops taking requests. I can no longer SSH in, Websites stop responding, etc. If I walk over to the server and take down eth1, everything works fine. Here is eth0: DEVICE=eth0 HWADDR=00:1b:21:cd:80:bf TYPE=Ethernet UUID=68a95912-3915-4b1a-9080-eb2017330153 ONBOOT=yes NM_CONTROLLED=yes BOOTPROTO=none IPADDR=192.168.1.27 NETMASK=255.255.255.0 DNS2=8.8.4.4 GATEWAY=192.168.1.1 DNS1=8.8.8.8 IPV6INIT=no USERCTL=no Here is eth1: DEVICE=eth1 HWADDR=00:0a:cd:17:07:7e TYPE=Ethernet UUID=b3851363-ae9e-4066-8993-caed07b9945b ONBOOT=no NM_CONTROLLED=yes BOOTPROTO=none IPADDR=10.0.254.11 NETMASK=255.255.255.0 GATEWAY=10.0.254.1 DNS1=8.8.8.8 DNS2=8.8.4.4 IPV6INIT=no USERCTL=no I have never experienced this before. Also, when I check system-config-network-tui, some .bak, which I made, but deleted the files from the file system when I was trying a few things. But how do I get rid of them? I attached a screenshot Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 2nd NIC troubles
I do have another gateway at 10.0.254.1, it is a Linksys router that all the provate stuff plugs into, and that Linksys plugs directly into our modem. On Tue, Apr 16, 2013 at 10:42 AM, Michael Mol mike...@gmail.com wrote: On 04/16/2013 01:37 PM, Jason T. Slack-Moehrle wrote: Hi All, I have 2 NICS in this system. CentOS 6.4 eth0 is the virtual IP from PFSense mapping connected to the router, works fine. eth1 is a second NIC that I have assigned a private IP to and connected it to a switch on the private network. I have many other private devices, so I know this setup works. When I connect the cable to the switch and bring up eth1 the system basically stops taking requests. I can no longer SSH in, Websites stop responding, etc. If I walk over to the server and take down eth1, everything works fine. Here is eth0: DEVICE=eth0 HWADDR=00:1b:21:cd:80:bf TYPE=Ethernet UUID=68a95912-3915-4b1a-9080-eb2017330153 ONBOOT=yes NM_CONTROLLED=yes BOOTPROTO=none IPADDR=192.168.1.27 NETMASK=255.255.255.0 DNS2=8.8.4.4 GATEWAY=192.168.1.1 DNS1=8.8.8.8 IPV6INIT=no USERCTL=no Here is eth1: DEVICE=eth1 HWADDR=00:0a:cd:17:07:7e TYPE=Ethernet UUID=b3851363-ae9e-4066-8993-caed07b9945b ONBOOT=no NM_CONTROLLED=yes BOOTPROTO=none IPADDR=10.0.254.11 NETMASK=255.255.255.0 GATEWAY=10.0.254.1 DNS1=8.8.8.8 DNS2=8.8.4.4 IPV6INIT=no USERCTL=no I have never experienced this before. Remove the GATEWAY line from eth1, unless you have another router (with its own access to the Internet) at 10.0.254.1. If eth0 points at your upstream, then this is unlikely. ___ 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] 2nd NIC troubles
Hi John, I do have another gateway at 10.0.254.1, it is a Linksys router that all the provate stuff plugs into, and that Linksys plugs directly into our modem. multiple gateways is problematic. there should be only one default route to 0.0.0.0/0 so you have a pfSense firewall AND a linksys soho router both connected to the internet? sounds messy. Yes, indeed. We have a pfsense box with servers behind it connected to our modem as well as a router connected with private stuff behind it. We do need to move the private stuff behind the pfsense box as well. It is on the list. Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 2nd NIC troubles
Hi Les, I do have another gateway at 10.0.254.1, it is a Linksys router that all the provate stuff plugs into, and that Linksys plugs directly into our modem. You can only have one 'default' gateway. Keep the one pointed to the internet router. Make a file named /etc/sysconfig/network-scripts/route-eth1 to hold the route(s) handled by the other interface. Something like: 10.0.0.0/8 via 10.0.254.1 should work if you want the whole private class A space to go that way. The ifup/ifdown scripts will add/remove the routes matching the interfaces. So this is a static route. I trued what you suggested and the eth1 interface stalls to come up. It just wont. All ssh sessions get disconnected and everything stops working I did: [root@meowbox network-scripts]# cat route-eth1 10.0.0.0/8 via 10.0.254.1 I found: http://www.centos.org/docs/5/html/5.1/Deployment_Guide/s1-networkscripts-static-routes.html So I changed it to: [root@meowbox network-scripts]# cat route-eth1 10.0.0.0/8 via 10.0.254.1 dev eth1 and commented out the GATEWAY= line in ifcfg-eht1 and the interface comes up. Testing ssh and the websites, they seem to be fine. Thank you for this lesson. Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] web collaboration packages.
Thanks for the notes John, let me go through this process again. On Thu, Apr 11, 2013 at 3:37 AM, John Doe jd...@yahoo.com wrote: From: Jason T. Slack-Moehrle slackmoeh...@gmail.com I can get through the install but Zimbra wont start. It says it started, but didn't I get LDAP errors, Sasl errors, AV and antispam. I worked though them a lot yesterday but I still can not get the mta started and nothing starts listening on 443 either. I have Apache not listening to 443, only 80. I turned off the firewall, postfix, sendmail, all just to be sure. Both stopping the service and chkconfig so it wont start up again on startup. I was really close yesterday but I gave up again. I even tried 7.2.3 instead of 8.0.3 and that seemed worse. I uninstalled everything and removed all the pieces and figured that I would give it a shot again today. Nothing in the zimbra logs? I started with a 6.x.x on CentOS 5, and I upgraded it up to 7.2.0. So it is not the same setup as yours... From my notes, I did: yum install nc libidn-devel gmp-devel perl-Net-Ident perl-Razor-Agent \ perl-Encode-Detect ./install.sh --platform-override Change domain name? [Yes] Create domain: [OLD] NEW 3) zimbra-store: Server mode: mixed cd /usr/sbin mv sendmail sendmail.old; ln -s /opt/zimbra/postfix/sbin/sendmail sendmail Copy ssl keys to /opt/zimbra/ssl/zimbra/commercial/ commercial.key commercial.crt commercial_ca.crt /opt/zimbra/bin/zmcertmgr verifycrt comm commercial.key commercial.crt /opt/zimbra/bin/zmcertmgr deploycrt comm commercial.crt commercial_ca.crt Change ports: zmprov -l gs FQDN | grep Port: zmprov -l ms FQDN zimbraMailPort 80 zimbraMailProxyPort 0 \ zimbraMailSSLPort 443 zimbraMailSSLProxyPort 0 zmprov -l gs FQDN | grep Port: zmcontrol restart JD ___ 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] How to change 'fstab' when you cannot boot the machine?
Hello All, So My Drobo finished formatting and I added an entry to fstab for it and now I cannot boot the machine. I get an error about fsck.ext3: is a directory while trying to open /drobo and then a mention of a valid super block I had mounted the Drobo as /drobo and in 'fstab' I copied the line for '/' changing to ext3 where it was ext4. I have made a mistake I cannot fix it because trying to edit fstab results in a read only file system message Can anyone help me learn how to recover? Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] How to change 'fstab' when you cannot boot the machine?
why not try it out? as said: ANY linux with a terminal is enough to mount the rootfs and edit /ect/fstab with vi or whatever P.S: use the mailing-list instead off-list replies Am 12.04.2013 01:42, schrieb Jason T. Slack-Moehrle: If I have a CentOS 6.4 DVD is that the 'Rescue installed system' menu option? Sorry for the personal reply. An oversight. My hesitation with the 'Rescue installed system' sort of reminds me of Windows where this option will go and blindly copy new versions of files to a system to get it to boot. I wasn't sure what would happen if I selected this option from the DVD. I will try it now. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] web collaboration packages.
Hi John, I can get through the install but Zimbra wont start. It says it started, but didn't I get LDAP errors, Sasl errors, AV and antispam. I worked though them a lot yesterday but I still can not get the mta started and nothing starts listening on 443 either. I have Apache not listening to 443, only 80. I turned off the firewall, postfix, sendmail, all just to be sure. Both stopping the service and chkconfig so it wont start up again on startup. I was really close yesterday but I gave up again. I even tried 7.2.3 instead of 8.0.3 and that seemed worse. I uninstalled everything and removed all the pieces and figured that I would give it a shot again today. Jason On Wed, Apr 10, 2013 at 7:30 AM, John Doe jd...@yahoo.com wrote: From: Jason T. Slack-Moehrle slackmoeh...@gmail.com Try as I might, I cannot get Zimbra 8.0.3 to install on CentOS 6.4, even with --platform override. I followed some tutorials even that show the result working and nada. What do you mean by cannot get to install...? Up to where does the install process go? Any specific error message? JD ___ 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] Formatting a USB Drive
Hi All, I have a Drobo, connected to a CentOS 6.4 box. The box sees it as /dev/sdg. I want to format it ext3 (as they dont support ext4) but when I try I get: # fdisk -u /dev/sdg WARNING: GPT (GUID Partition Table) detected on '/dev/sdg'! The util fdisk doesn't support GPT. Use GNU Parted. WARNING: The size of this disk is 17.6 TB (17592186044416 bytes). DOS partition table format can not be used on drives for volumes larger than (2199023255040 bytes) for 512-byte sectors. Use parted(1) and GUID partition table format (GPT). WARNING: DOS-compatible mode is deprecated. It's strongly recommended to switch off the mode (command 'c'). So I run: # parted GNU Parted 2.1 Using /dev/sda Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) select /dev/sdg Using /dev/sdg (parted) print Model: DROBO DroboPro (scsi) Disk /dev/sdg: 17.6TB Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End Size File system Name Flags (parted) and looking at an example of creating a partition: (parted) mkpart primary 106 16179 I dont know what to do next since I dont see any partitions listed. I dont know what do to for the start and end point, although the man page says size in MB. Do I just say 0 to (and convert 16.0TB to MB? Yes, I know it says 17.6 TB but this model drobo can only support partitions up to 16tb without making a second partition. Can anyone provide some advice on that I am missing conceptually? Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Formatting a USB Drive
I dont have a graphical desktop installed. On Wed, Apr 10, 2013 at 11:09 AM, Les Mikesell lesmikes...@gmail.comwrote: On Wed, Apr 10, 2013 at 11:54 AM, Jason T. Slack-Moehrle slackmoeh...@gmail.com wrote: I have a Drobo, connected to a CentOS 6.4 box. The box sees it as /dev/sdg. # parted GNU Parted 2.1 Using /dev/sda Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) select /dev/sdg Using /dev/sdg (parted) print Model: DROBO DroboPro (scsi) Disk /dev/sdg: 17.6TB Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End Size File system Name Flags (parted) and looking at an example of creating a partition: (parted) mkpart primary 106 16179 I dont know what to do next since I dont see any partitions listed. I dont know what do to for the start and end point, although the man page says size in MB. Do I just say 0 to (and convert 16.0TB to MB? Yes, I know it says 17.6 TB but this model drobo can only support partitions up to 16tb without making a second partition. Can anyone provide some advice on that I am missing conceptually? If you have a GUI desktop installed you can install the gparted package from EPEL. It is easier to use than raw parted and mkfs. -- Les Mikesell lesmikes...@gmail.com ___ 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] Formatting a USB Drive
Hi Mark, Can anyone provide some advice on that I am missing conceptually? Several issues. First, if you use 4k blocks, the max filesystem size for ext3 is 16TB (see wikipedia on ext3). Second, I can't remember where, but on some filesystem tool's manpage, I read that the tools have problems going over 16TB. Third, fsck on a 16TB filesystem will take *days*, literally. I'm setting up, right now, a humongous RAID box, and I'll probably be divvying up the 42TB (mirrored!) as 3 14TB filesystems, and they're going to be ext4. 16tb is the max I would have for this device. Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Formatting a USB Drive
I found an article that led me to do: (parted) mkpart primary 0GB 16TB (parted) print Model: DROBO DroboPro (scsi) Disk /dev/sdg: 17.6TB Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End SizeFile system Name Flags 1 1049kB 16.0TB 16.0TB primary On Wed, Apr 10, 2013 at 11:50 AM, Jason T. Slack-Moehrle slackmoeh...@gmail.com wrote: Hi Mark, Can anyone provide some advice on that I am missing conceptually? Several issues. First, if you use 4k blocks, the max filesystem size for ext3 is 16TB (see wikipedia on ext3). Second, I can't remember where, but on some filesystem tool's manpage, I read that the tools have problems going over 16TB. Third, fsck on a 16TB filesystem will take *days*, literally. I'm setting up, right now, a humongous RAID box, and I'll probably be divvying up the 42TB (mirrored!) as 3 14TB filesystems, and they're going to be ext4. 16tb is the max I would have for this device. Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Formatting a USB Drive
Hi Mark, Do you override the automatic fsck check with tune2fs? It would be a huge bummer to do through a check frequently, I forget the defaults but I think 180 days or a certain number of mounts, iirc. Jason On Wed, Apr 10, 2013 at 11:39 AM, m.r...@5-cent.us wrote: Jason T. Slack-Moehrle wrote: I have a Drobo, connected to a CentOS 6.4 box. The box sees it as /dev/sdg. I want to format it ext3 (as they dont support ext4) but when I try I get: snip So I run: # parted GNU Parted 2.1 Using /dev/sda Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) select /dev/sdg Using /dev/sdg (parted) print Model: DROBO DroboPro (scsi) Disk /dev/sdg: 17.6TB Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End Size File system Name Flags (parted) and looking at an example of creating a partition: (parted) mkpart primary 106 16179 I dont know what to do next since I dont see any partitions listed. I dont know what do to for the start and end point, although the man page says size in MB. Do I just say 0 to (and convert 16.0TB to MB? Yes, I know it says 17.6 TB but this model drobo can only support partitions up to 16tb without making a second partition. Can anyone provide some advice on that I am missing conceptually? Several issues. First, if you use 4k blocks, the max filesystem size for ext3 is 16TB (see wikipedia on ext3). Second, I can't remember where, but on some filesystem tool's manpage, I read that the tools have problems going over 16TB. Third, fsck on a 16TB filesystem will take *days*, literally. I'm setting up, right now, a humongous RAID box, and I'll probably be divvying up the 42TB (mirrored!) as 3 14TB filesystems, and they're going to be ext4. mark ___ 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] Formatting a USB Drive
Thanks for the advice. What are you storing on your large RAIDS that you mention? On Wed, Apr 10, 2013 at 12:35 PM, m.r...@5-cent.us wrote: Jason T. Slack-Moehrle wrote: Hi Mark, Do you override the automatic fsck check with tune2fs? It would be a huge bummer to do through a check frequently, I forget the defaults but I think 180 days or a certain number of mounts, iirc. We do it manually, when we get to it, and when the users are going to be off long enough Btw, I saw that you said you'd started on 1M - good move. I always start parted with -a optimal. I've read that non-optimal alignment can result in serious slowdowns in throughput - half as fast, or even slower. mark Jason On Wed, Apr 10, 2013 at 11:39 AM, m.r...@5-cent.us wrote: Jason T. Slack-Moehrle wrote: I have a Drobo, connected to a CentOS 6.4 box. The box sees it as /dev/sdg. I want to format it ext3 (as they dont support ext4) but when I try I get: snip So I run: # parted GNU Parted 2.1 Using /dev/sda Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) select /dev/sdg Using /dev/sdg (parted) print Model: DROBO DroboPro (scsi) Disk /dev/sdg: 17.6TB Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End Size File system Name Flags (parted) and looking at an example of creating a partition: (parted) mkpart primary 106 16179 I dont know what to do next since I dont see any partitions listed. I dont know what do to for the start and end point, although the man page says size in MB. Do I just say 0 to (and convert 16.0TB to MB? Yes, I know it says 17.6 TB but this model drobo can only support partitions up to 16tb without making a second partition. Can anyone provide some advice on that I am missing conceptually? Several issues. First, if you use 4k blocks, the max filesystem size for ext3 is 16TB (see wikipedia on ext3). Second, I can't remember where, but on some filesystem tool's manpage, I read that the tools have problems going over 16TB. Third, fsck on a 16TB filesystem will take *days*, literally. I'm setting up, right now, a humongous RAID box, and I'll probably be divvying up the 42TB (mirrored!) as 3 14TB filesystems, and they're going to be ext4. mark ___ 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] Formatting a USB Drive
Hi John, Thanks for this info. Drobo says no ext4: http://support.drobo.com/app/answers/detail/a_id/165/~/how-do-i-use-my-drobo-with-a-linux-machine%3F I will look up XFS. Jason On Wed, Apr 10, 2013 at 1:50 PM, John R Pierce pie...@hogranch.com wrote: On 4/10/2013 9:54 AM, Jason T. Slack-Moehrle wrote: # parted GNU Parted 2.1 here's my parted recipe for making very large volumes... this will fill the disk, reserving 512K up front to be on a reasonable stripe boundary |parted /dev/sdb ||mklabel gpt| |parted -a none /dev/sdb ||mkpart primary 1024s -1s| I would under NO conditions make a EXT3 volume anywheres NEAR as big as you're talking about. my preference for large volumes is XFS. VG=vg_$(hostname -s)_data vgcreate $VG /dev/sdb1 lvcreate --size 8T --name lv_data $VG mkfs.xfs /dev/$VG/lv_data mount /dev/$VG/lv_data /data if your storage device presents the storage as a block device, then there's no 'support' issues I'm aware of for file systems, its just sectors as far as the storage device is concerned, the file system is strictly up to your OS. -- john r pierce 37N 122W somewhere on the middle of the left coast ___ 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] web collaboration packages.
Hello All, Try as I might, I cannot get Zimbra 8.0.3 to install on CentOS 6.4, even with --platform override. I followed some tutorials even that show the result working and nada. Can anyone suggest a good setup for e-mails erving, calendaring, web mail? Web mail is particularly important for my wife so she can check e-mail when she is at work. Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] web collaboration packages.
Wow, a better search yields a fair amount of packages. On Tue, Apr 9, 2013 at 10:46 AM, Jason T. Slack-Moehrle slackmoeh...@gmail.com wrote: Hello All, Try as I might, I cannot get Zimbra 8.0.3 to install on CentOS 6.4, even with --platform override. I followed some tutorials even that show the result working and nada. Can anyone suggest a good setup for e-mails erving, calendaring, web mail? Web mail is particularly important for my wife so she can check e-mail when she is at work. Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Hostname question
CentOS 6.4, clean install. Zimbra 8.0.3 I am behind a PfSense box using a virtual IP. So the IP of the box is 192.168.1.27 I entered this in /etc/hosts: 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 192.168.1.27 mail mail.meowbox.me meowbox.me but `hostname -f` says: $ hostname -f hostname: Unknown host Do I need to put the public IP for where this record resolves? Since PFSense is forwarding traffic from it to the virtual IP? Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Hostname question
Hi Mark, I did a reboot and not `hostname -f` says: mail. But I think that will still be wrong in terms of what Zimbra is looking for. When I did the install I set the hostname to `webserver.localdomain`, so I see in /var/log/messages: `Apr 7 12:35:48 webserver kernel: SRAT: PXM 0 - APIC 0 - Node 0` I think I might need to trick Zimbra bu changing: 192.168.1.27 mail mail.meowbox.me meowbox.me to 192.168.1.27 mail.meowbox.me mail.meowbox.me meowbox.me Jason On Mon, Apr 8, 2013 at 11:26 AM, m.r...@5-cent.us wrote: Jason T. Slack-Moehrle wrote: CentOS 6.4, clean install. Zimbra 8.0.3 I am behind a PfSense box using a virtual IP. So the IP of the box is 192.168.1.27 I entered this in /etc/hosts: 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 192.168.1.27 mail mail.meowbox.me meowbox.me but `hostname -f` says: $ hostname -f hostname: Unknown host Do I need to put the public IP for where this record resolves? Since PFSense is forwarding traffic from it to the virtual IP? Quick check: is the hostname showing in /var/log/messages? If not, did you either reboot the box, or set the hostname manually, or restart the network? It won't take effect until you do one of those. mark ___ 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] Hostname question
Hi Johnny: # cat /etc/sysconfig/network NETWORKING=yes HOSTNAME=mail.meowbox.me Jason On Mon, Apr 8, 2013 at 11:45 AM, Johnny Hughes joh...@centos.org wrote: On 04/08/2013 01:35 PM, Jason T. Slack-Moehrle wrote: Hi Mark, I did a reboot and not `hostname -f` says: mail. But I think that will still be wrong in terms of what Zimbra is looking for. When I did the install I set the hostname to `webserver.localdomain`, so I see in /var/log/messages: `Apr 7 12:35:48 webserver kernel: SRAT: PXM 0 - APIC 0 - Node 0` I think I might need to trick Zimbra bu changing: 192.168.1.27 mail mail.meowbox.me meowbox.me to 192.168.1.27 mail.meowbox.me mail.meowbox.me meowbox.me Jason On Mon, Apr 8, 2013 at 11:26 AM, m.r...@5-cent.us wrote: Jason T. Slack-Moehrle wrote: CentOS 6.4, clean install. Zimbra 8.0.3 I am behind a PfSense box using a virtual IP. So the IP of the box is 192.168.1.27 I entered this in /etc/hosts: 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 192.168.1.27 mail mail.meowbox.me meowbox.me but `hostname -f` says: $ hostname -f hostname: Unknown host Do I need to put the public IP for where this record resolves? Since PFSense is forwarding traffic from it to the virtual IP? Quick check: is the hostname showing in /var/log/messages? If not, did you either reboot the box, or set the hostname manually, or restart the network? It won't take effect until you do one of those. What is the hostname listed in /etc/sysconfig/network ? ___ 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] Hostname question
John, Weird question, but if web and e-mail are going to be on the same box. Do I need to do mail.hostname.tld or can I just to hostname.tld? For the MeowBox.me domain. for DNS A-record: @ is the public IP A-record mail is the public IP. Mx record is 0 mail mail.meowbox.me On Mon, Apr 8, 2013 at 11:46 AM, John R Pierce pie...@hogranch.com wrote: On 4/8/2013 11:17 AM, Jason T. Slack-Moehrle wrote: but `hostname -f` says: $ hostname -f hostname: Unknown host put the hostname in /etc/sysconfig/network, as .. HOSTNAME=full.domain.name.com example... $ more /etc/sysconfig/network NETWORKING=yes NETWORKING_IPV6=no HOSTNAME=hostname.mydomain.com GATEWAY=x.y.w.x -- john r pierce 37N 122W somewhere on the middle of the left coast ___ 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] Hostname question
Thanks everyone for all of the help, I appreciate it. On Mon, Apr 8, 2013 at 12:09 PM, John R Pierce pie...@hogranch.com wrote: On 4/8/2013 11:52 AM, Jason T. Slack-Moehrle wrote: Weird question, but if web and e-mail are going to be on the same box. Do I need to do mail.hostname.tld or can I just to hostname.tld? For the MeowBox.me domain. for DNS A-record: @ is the public IP A-record mail is the public IP. Mx record is 0 mail mail.meowbox.me the FQDN hostname can be whatever. -- john r pierce 37N 122W somewhere on the middle of the left coast ___ 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] SpamAssassin reporting help
Hello All, CentOS release 6.3 (Final) I am getting e-mails now where they are: Subject: Cron root@www /usr/share/spamassassin/sa-update.cron 21 | tee -a /var/log/sa-update.log Body: http: GET http://daryl.dostech.ca/sa-update/asf/1387055.tar.gz request failed: 404 Not Found: !DOCTYPE HTML PUBLIC -//IETF//DTD HTML 2.0//EN htmlhead title404 Not Found/title /headbody h1Not Found/h1 pThe requested URL /sa-update/asf/1387055.tar.gz was not found on this server./p hr addressApache/2.2.6 (Fedora) Server at daryl.dostech.ca Port 80/address /body/html Can anyone help me understand what is happening here? Are they trying to inject an http request, looking for a specific file? Or checking to see if I am running a piece of software that has vulnerabilities to exploit? -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] an assortment of mail serving issues - PARTIALLY SOLVED
OK, I solved this, partially. It turns out that this is 'nearly always caused by a host that is configured on private IP Space (or using NAT) and that does not have an interface for the public IP address the server resides on. This can be easily fixed by simply using native IP address lookups for lmtp rather than DNS' so a few Zimbra commands and everything works Zimbra wise. Special thanks to John Stanley for e-mailing me privately about a few things. The remaining issue is that e-mail from our websites isn't working still PHP mail functions dont seem to be getting to us. Items like: $headers = 'MIME-Version: 1.0' . \r\n; $headers .= 'Content-type: text/html; charset=iso-8859-1' . \r\n; $mail_to = ja...@thedigiologygroup.org; $mail_subject = [6Colors] Contact Requested!; $mail_body = htmlbodybr /; $mail_body = $mail_body.[6Colors - CONTACT]br /br /; $mail_body = $mail_body.Name: .$vName.br /; $mail_body = $mail_body.E-Mail Address: .$vEmail.br /br /; $mail_body = $mail_body.Comments: .$vComment.br /; $mail_body = $mail_body. END br /; $mail_body = $mail_body.br //body/html; mail($mail_to, $mail_subject, $mail_body, $headers); I tried a test message from the website and then looked at `/var/log/maillog' and I dont see anything. Any thoughts? -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] an assortment of mail serving issues
Hi All, I moved to a new CentOS6 install after an old CentOS5 server started exhibiting problems. I am having mail serving issues and they are confusing. I am seeing both Sendmail and Zimbra issues. We front e-end out operation with a pfSense box and it has the following mail ports open: 25, 465, 587, 110, 143, 993, 995. We have Zimbra and that also requires 7025 and 7071 be open. This sent OS Server has these same ports open and verified by 'system-config-network-tui' 1. We have a few php based sites that utilize code like: $headers = 'MIME-Version: 1.0' . \r\n; $headers .= 'Content-type: text/html; charset=iso-8859-1' . \r\n; $mail_to = slackmoeh...@gmail.com; $mail_subject = [6Colors] Footage!; $mail_body = htmlbodybr /; $mail_body = $mail_body.[6Colors - FOOTAGE]br /br /; $mail_body = $mail_body.Name: .$vName.br /; $mail_body = $mail_body.E-Mail Address: .$vEmail.br /br /; $mail_body = $mail_body.Comments: .$vComment.br /; $mail_body = $mail_body. END br /; $mail_body = $mail_body.br //body/html; mail($mail_to, $mail_subject, $mail_body, $headers); This mail is failing to be delivered. 2. We have a database backup script that e-mails a few very small databases every night. #Enter the email address you would like to receive the backup EMAIL=slackmoeh...@gmail.com; MAIL=/usr/bin/mail; /usr/bin/uuencode $DUMP$EXT2$EXT4 $DUMP$EXT2$EXT4 |$MAIL -s Mysql Backup For $DATABASE $EMAIL ; This mail is failing to be delivered. 3. We have a CMS running that we have tried using SendMail and SMTP by authenticating using Google credentials, following Google instructions and the CMS cannot send outgoing mail as well. 4. Zimbra users can send mail, but replying back doesn't work. They cannot receive e-mails. I thought to check '/var/log/maillog' so I did 'tail maillog' # tail maillog Apr 12 20:43:56 www postfix/lmtp[21788]: connect to thedigiologygroup.org[75.149.56.27]:7025: Connection timed out Apr 12 20:43:56 www postfix/lmtp[21788]: 6AD69198102B: to=ja...@thedigiologygroup.org, relay=none, delay=21, delays=0.07/0.01/21/0, dsn=4.4.1, status=deferred (connect to thedigiologygroup.org[75.149.56.27]:7025: Connection timed out) Apr 12 20:44:04 www postfix/smtpd[21765]: disconnect from mail-pz0-f51.google.com[209.85.210.51] Here clearly is a connection timeout on port 7025, but I do see that it is open on our pfSense box and the CentOS server experiencing this. So I started checking things like DNS, etc # host thedigiologygroup.org thedigiologygroup.org has address 75.149.56.27 thedigiologygroup.org mail is handled by 0 mail.thedigiologygroup.org. # dig +short thedigiologygroup.org mx 0 mail.thedigiologygroup.org. I had Comcast create Reverse PTR records yesterday for the IP 75.149.56.27 for mail.thedigiologygroup.org and mail.ouremail.us. I use DNSQueries to test this and I found they have a type for the mail.ouremail.us entry, they used .com, so I will call and have them correct it I tried doing an SMTP test on DNSqueries.com and it fails saying: I was NOT able to connect on port 25 to mail.thedigiologygroup.org I dont know if this is trying open relay stuff, so that should fail? I rebooted the server finally and looked at maillog after a reboot and I see: # tail /var/log/maillog Apr 12 21:14:05 www zmmailboxdmgr[5836]: status OK Apr 12 21:14:05 www zmmailboxdmgr[6021]: status requested Apr 12 21:14:05 www zmmailboxdmgr[6021]: status OK Apr 12 21:14:30 www postfix/postqueue[6243]: fatal: Queue report unavailable - mail system is down Apr 12 21:15:00 www postfix/postqueue[6251]: fatal: Queue report unavailable - mail system is down Apr 12 21:15:07 www zmmailboxdmgr[6351]: status requested Apr 12 21:15:07 www zmmailboxdmgr[6351]: status OK Apr 12 21:15:07 www zmmailboxdmgr[6360]: status requested Apr 12 21:15:07 www zmmailboxdmgr[6360]: status OK Apr 12 21:15:30 www postfix/postqueue[6559]: fatal: Queue report unavailable - mail system is down So I am really confused and I was hoping for some advice on sorting this out. -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] MySQL on CentOS 6 broken? No 'mysql' database?
Hi Guys, I installed CentOS 6 and installed 'yum install mysql mysql-devel mysql-server' When I try and start MySQL I get: 120206 16:42:07 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql /usr/libexec/mysqld: Table 'mysql.plugin' doesn't exist 120206 16:42:07 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it. 120206 16:42:07 InnoDB: Started; log sequence number 0 44233 120206 16:42:07 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.host' doesn't exist 120206 16:42:07 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended if I go look in /var/lib/mysql I see: -rw-rw. 1 mysql mysql 10485760 Feb 5 16:53 ibdata1 -rw-rw. 1 mysql mysql 5242880 Feb 6 16:42 ib_logfile0 -rw-rw. 1 mysql mysql 5242880 Feb 5 16:33 ib_logfile1 drwx--. 2 mysql mysql 4096 Feb 5 16:55 mysql drwx--. 2 mysql mysql 4096 Feb 5 16:55 test and the 'mysql' is empty. I dont understand, I have never had this issue. I assume that the 'mysql' directory should contain something? So with this, I cannot do anything to get MySQL going! I tried a 'yum upgrade' to make sure everything was up to date. [root@www mysql]# cat /etc/*release* CentOS release 6.2 (Final) cat: /etc/lsb-release.d: Is a directory CentOS release 6.2 (Final) CentOS release 6.2 (Final) cpe:/o:centos:linux:6:GA Any thoughts? -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] One of my servers wont boot today
Hi All, One of my servers upon a restart today comes up with an error checking filesystems: fsck.ext3: no such file or directory while trying to open /dev/VolGroup-1/Logvol00. /dev/VolGroup-1/LogVol00. The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 device I dropped into the shell and tried mounting: mount -t ext3 /dev/VolGroup-1/LogVol00 I tried booting to media and do 'linux rescue' but it could not mount file filesystems either and nothing at all ends up in /mnt/sysimage. I think this was caused by installing quotas and changing /etc/fstab to add ,usrquota,grpquota. There are 2 x 1tb drives, software raid, mirrored. Can anyone provide advice on how to solve? I would think if I could get /etc/fstab edited back to normal I would be all set. -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] One of my servers wont boot today
It says File based locking initialization failed -- Jason T. Slack-Moehrle On Monday, January 30, 2012 at 9:59 AM, Dennis Jacobfeuerborn wrote: The no such file or directory sound more like the LV cannot be found. What does lvdisplay say? Regards, Dennis On 01/30/2012 06:56 PM, Jason T. Slack-Moehrle wrote: Hi All, One of my servers upon a restart today comes up with an error checking filesystems: fsck.ext3: no such file or directory while trying to open /dev/VolGroup-1/Logvol00. /dev/VolGroup-1/LogVol00. The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193device I dropped into the shell and tried mounting: mount -t ext3 /dev/VolGroup-1/LogVol00 I tried booting to media and do 'linux rescue' but it could not mount file filesystems either and nothing at all ends up in /mnt/sysimage. I think this was caused by installing quotas and changing /etc/fstab to add ,usrquota,grpquota. There are 2 x 1tb drives, software raid, mirrored. Can anyone provide advice on how to solve? I would think if I could get /etc/fstab edited back to normal I would be all set. -Jason ___ CentOS mailing list CentOS@centos.org (mailto:CentOS@centos.org) http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org (mailto: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] One of my servers wont boot today
It says File based locking initialization failed Try the --ignorelockingfailure argument. I am not familiar with that and 'man lvdisplay' does not show it as an option. Google for that turns up more results. Is it used with e2fsck, I dont see it there either. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] One of my servers wont boot today
It says File based locking initialization failed Try the --ignorelockingfailure argument. I am not familiar with that and 'man lvdisplay' does not show it as an option. Google for that turns up more results. Is it used with e2fsck, I dont see it there either. It's an option for most LVM commands. Do a man lvdisplay and look in the SYNOPSIS section. Apparently most options lvdisplay understands aren't actually listed in the OPTIONS section. Thanks. It does list out the volume information, what else should it do? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] One of my servers wont boot today
Hi, Try the --ignorelockingfailure argument. I am not familiar with that and 'man lvdisplay' does not show it as an option. Google for that turns up more results. Is it used with e2fsck, I dont see it there either. It's an option for most LVM commands. Do a man lvdisplay and look in the SYNOPSIS section. Apparently most options lvdisplay understands aren't actually listed in the OPTIONS section. Thanks. It does list out the volume information, what else should it do? what does lvm lvscan says, are they active? if not, run vgchange -a y VolGroup-1 to activate them (temporary only, while using that DVD/LiveDVD). it should activate that Volume Group and all Logical Volumes in it. Now you can scan it wit fsck Then you may need to mount it in some created folder (mkdir -p /sysimage/LogVol00; mount /dev/VolGroup-1/LogVol00 /sysimage/LogVol00). Check if your system had any updates (kernel in particular) between reboots. Maybe something gone bad. I did vgchange -a y VolGroup00 and it activated 3 volumes So I am trying to fsck and it comes up with the same super block error I had but I dont see how to fix it. It says: /dev/VolGroup00/. The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 device So I tried e2fsck -b 8193 /dev/VolGroup00 and it seems I get the same error coming up over and over I tried: fsck -y b=8193 /dev/VolGroup00 as well Any thoughts? -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] One of my servers wont boot today
It says: /dev/VolGroup00/. The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 device So I tried e2fsck -b 8193 /dev/VolGroup00 and it seems I get the same error coming up over and over I tried: fsck -y b=8193 /dev/VolGroup00 as well Any thoughts? You need to fsck each logical volume, not the whole volume group, e.g. e2fsck -b 8193 /dev/VolGroup00/LogVol01 sure, I thought of that too. under /dev/VolGroup00 is LogVol00, LogVol01, LogVol02. I do e2fsck -b 8193 /dev/VolGroup00/LogVol00 and I get the same super block error above. Same with LogVol01 and 02. -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] One of my servers wont boot today
It says: /dev/VolGroup00/. The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 device So I tried e2fsck -b 8193 /dev/VolGroup00 and it seems I get the same error coming up over and over I tried: fsck -y b=8193 /dev/VolGroup00 as well Any thoughts? You need to fsck each logical volume, not the whole volume group, e.g. e2fsck -b 8193 /dev/VolGroup00/LogVol01 sure, I thought of that too. under /dev/VolGroup00 is LogVol00, LogVol01, LogVol02. I do e2fsck -b 8193 /dev/VolGroup00/LogVol00 and I get the same super block error above. Same with LogVol01 and 02. Forgot: e2fsck: Bad magic number in super-block while trying to open LogVol00 The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 device ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] A Hardware Observation (and Thank You To John Pierce)
A few days ago, John Pierce made a comment about Intel network cards and that they are more reliable and a better overall card than most. (This is not exactly what he said, but rather I am paraphrasing) My small cluster of servers all had generic PCI nics in them (I was not using any onboard NICS). Today, I replaced the NICS with Intel Pro 1000 PCI-E NICS and replaces our small 5 port TP-Link GB switch with a nice 8 port Cisco GB switch and what a world of difference. The network is zippier for sure. Copying large files between machines using 'scp' is faster, our websites come up better (testing from my wife's work) too. I know some have joked about the PB conversation in terms of not realizing the amount of electricity and space it will take, but I really do read and pay attention and try not to ask totally stupid questions. John Pierce, thank you! -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Can anyone talk infrastructure with me?
Hi John, Are you using Comcast in Santa Cruz? absolutely not.the local cable system blows. my home is on a sonic.net (http://sonic.net) ADSL circuit resold by another ISP. television is on satellite. I am looking at Sonic.net and I am awaiting a call from a sales rep (had been 2 days) They are offering a Business T for $308 per month and I also see they have the bonded They advertise the starting Business T at 1.5Mbps per second They advertise the ADSL2+ 2 lines at up to 40Mbps per second. Am I mis-understanding that the cost for a T seems high, but a better option for me than getting their ADSL2+ service? I mean, is the T faster over all given it is all my traffic and I am not sharing? Can you explain a bit so I can develop a better understanding of how they advertise speeds, etc? -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Can anyone talk infrastructure with me?
Hi Karanbir, Can you explain a bit so I can develop a better understanding of how they advertise speeds, etc? have you considered taking your questions to the lopsa lists ? That would be far more topical ( or even to a local LUG list ) than the CentOS lists. I have no idea what lopsa is, so let me look it up. I know my questions are surely off topic here. -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Can anyone talk infrastructure with me?
Hi Gordon. They advertise the starting Business T at 1.5Mbps per second They advertise the ADSL2+ 2 lines at up to 40Mbps per second. Am I mis-understanding that the cost for a T seems high, but a better option for me than getting their ADSL2+ service? I mean, is the T faster over all given it is all my traffic and I am not sharing? Can you explain a bit so I can develop a better understanding of how they advertise speeds, etc? Yes, the cost for a T1 will seem very high. It is antiquated telco tech. T1s are generally very reliable, but very very slow. 1.5Mbps is not faster than 40Mbps. There's nothing hidden in the way they advertise speeds. DSL and DOCSIS technologies have advanced and matured over the last couple of decades. T1 has not. A T1 connection is the same now as it has always been. Your timing is perfect with this reply. I was just on the phone with Sonic.net and the rep told me that the T1 was better due to it being all my traffic and much more reliable. They told me that most companies buying internet for hosting their infrastructure internally are not happy with 40Mbps. With Comcast we currently have a 20 x 5 and they are offering us a 50 x 10 circuit for $123/month. -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] HP ProLiant N40L
Hi All, A friend gave me his HP ProLiant N40L and I am wondering if anyone has installed CentOS 6 on it? Raided the drives, etc? -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] HP ProLiant N40L
Did you have any trouble using a USB DVD drive or did you put an internal in it? Do you know if I buy an internal blu-ray if CentOS has a way to write to the media for backup? -- Jason T. Slack-Moehrle On Wednesday, January 25, 2012 at 12:14 PM, Ade wrote: I have an N40L and its running RHEL6 totally fine On 25 January 2012 19:39, Jason T. Slack-Moehrle slackmoeh...@gmail.com (mailto:slackmoeh...@gmail.com)wrote: Hi All, A friend gave me his HP ProLiant N40L and I am wondering if anyone has installed CentOS 6 on it? Raided the drives, etc? -Jason ___ CentOS mailing list CentOS@centos.org (mailto:CentOS@centos.org) http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org (mailto: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] HP ProLiant N40L
Have you tried to use 2 x 8gb DDR3 to get it to 16gb instead of the 8gb they say is max? -- Jason T. Slack-Moehrle On Wednesday, January 25, 2012 at 12:57 PM, Jason T. Slack-Moehrle wrote: Did you have any trouble using a USB DVD drive or did you put an internal in it? Do you know if I buy an internal blu-ray if CentOS has a way to write to the media for backup? -- Jason T. Slack-Moehrle On Wednesday, January 25, 2012 at 12:14 PM, Ade wrote: I have an N40L and its running RHEL6 totally fine On 25 January 2012 19:39, Jason T. Slack-Moehrle slackmoeh...@gmail.com (mailto:slackmoeh...@gmail.com)wrote: Hi All, A friend gave me his HP ProLiant N40L and I am wondering if anyone has installed CentOS 6 on it? Raided the drives, etc? -Jason ___ CentOS mailing list CentOS@centos.org (mailto:CentOS@centos.org) http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org (mailto:CentOS@centos.org) http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Can anyone talk infrastructure with me?
Hi All, I started a 501c3 (not-for-profit) organization back in February 2011 to deal with information archival. A long vision here, I wont bore you with the details (if you really want to know, e-mail me privately) but the gist is I need to build an infrastructure to accommodate about 2PB of data that is database stuff, stored video, crawl data, static data sets, etc. Right now in my testing of the software I can easily bang down 300+gb a month of data. I have a Comcast business circuit and so far so good with them. I am investigating Sonic.net for a Business T solution as they call it. As part of their deal, they want to lease me a Managed Cisco Router. I know, i know which one? Well none of the Sales people know and they have to find out for me! They also told me that with this router, there is no reason to run my own dedicated firewall. Which I have been investigating recently as well. I do have cisco PIX experience and I am not sure how much of that translates to real world use now-a-days. I have not touched a PIX in 5 years. So I am confused and I would appreciate some advice. So this Cisco device they want to put in front of everything. I then wanted to run my own dedicated firewall (a custom build box probably thanks to John Pierce's advice about pfSense recently). Coming off that dedicated Firewall, I need a DMZ for web-serving, a private VLAN for database servers, etc and a private VLAN for my computers here that I use to do all the work behind the NPO. Here is where I draw some confusion. Where do items such as Varnish Cache, HAProxy go in relationship to firewall, DMZ, etc? HAProxy is a load-balancer, so It should do in front of web-servers so it can decide which web-server to send the traffic to? Varnish Cache is all about caching commonly used resources so it seems that this has to go in front too? Can this be the same box realistically? How does one spec this box out? Database servers and storage servers would go on the private VLAN? I am building a box to store all the data (mysql, video, crawl data, static datasets) and I strongly think it might be a backBlaze POD running CentOS. I know this is not the best list to ask these types of questions on, so if there is a better place besides ServerFault or SuperUser.com, I would appreciate knowing. I just find the folks here have so much knowledge besides CentOS. I look at some of these organizations that talk about their infrastructure like WikiMedia Foundation, StackOverflow and I sort of really become quickly amazed that I could full the garage in my house with equipment easily and my wife wont like that! -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Can anyone talk infrastructure with me?
Hi, I started a 501c3 (not-for-profit) organization back in February 2011 to deal with information archival. A long vision here, I wont bore you with the details (if you really want to know, e-mail me privately) but the gist is I need to build an infrastructure to accommodate about 2PB of data 2PB? At home? http://www.youtube.com/watch?v=Eu430bqbK5w Rent a rack somewhere, or three. Unless nobody is retrieving the data and you are just archiving it. Well, people will be retrieving the data, analyzing it, etc. Plus we allow them to conduct crawls for potential relevant data as well. At home, sort of, my garage. We really have no need for office space with everything that can be done remote now-a-days. I really dont want to rent a rack someplace as the cost is way up there and if I do it myself I always know the status of the equipment, quality of hardware, etc. I also get the burden of every problem too, I realize. Yes, I am thinking about dedicated power, backup generators, cooling, etc. Thanks for the YouTube link, looks helpful. -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Can anyone talk infrastructure with me?
can you explain to the calculation to determine that 300gb is 2mbps? What it is 300gb a day? Comcast has told me in the last two days I went through 127gb -- Jason T. Slack-Moehrle On Wednesday, January 25, 2012 at 4:21 PM, Karanbir Singh wrote: Hi, On 01/25/2012 11:53 PM, Jason T. Slack-Moehrle wrote: Hi All, I started a 501c3 (not-for-profit) organization back in February 2011 to deal with information archival. A long vision here, I wont bore you with the details (if you really want to know, e-mail me privately) but the gist is I need to build an infrastructure to accommodate about 2PB of data that is database stuff, stored video, crawl data, static data sets, etc. Right now in my testing of the software I can easily bang down 300+gb a month of data. 300gb a month is barely 2mbps... 2PiB is a whole different ballgame. Most of what how you setup, network, maintain and then grow/manage into the future will depend on what you want to do with the data, how you want to expose it to the user and how much money you want to throw at the issues. Even using the most commodity of hardware, with 95 percentile psu's - your garage is unlikely to have enough electricity to power a 2PiB store. Or cool it. -- Karanbir Singh +44-207-0999389 | http://www.karan.org/ | twitter.com/kbsingh (http://twitter.com/kbsingh) ICQ: 2522219 | Yahoo IM: z00dax | Gtalk: z00dax GnuPG Key : http://www.karan.org/publickey.asc ___ CentOS mailing list CentOS@centos.org (mailto: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] Can anyone talk infrastructure with me?
Hi Aurf, I am seeing a lot of solutions that are not all perfect and just insanely expensive. BackBlaze seems like a pretty decent solution, I have control of all hardware and software to do with as I please. If you have ideas, please talk to me about them! -Jason -- Jason T. Slack-Moehrle On Wednesday, January 25, 2012 at 4:29 PM, aurfalien wrote: On Jan 25, 2012, at 3:53 PM, Jason T. Slack-Moehrle wrote: Hi All, I started a 501c3 (not-for-profit) organization back in February 2011 to deal with information archival. Database servers and storage servers would go on the private VLAN? I am building a box to store all the data (mysql, video, crawl data, static datasets) and I strongly think it might be a backBlaze POD running CentOS. Hi Jason, Not to be one of those guys who answers a question with a question, but... why backBlaze for archival? Are you building in some safe guards/redundancy not found in the current backBlaze implenetation? Just curious, not a challenge or anything. - aurf ___ CentOS mailing list CentOS@centos.org (mailto: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] Can anyone talk infrastructure with me?
racking 2 PiB (or 2048TiB) of nearline grade storage will require about 1000 3.5 3TB drives, allowing for a reasonable raid level and suitable number of hotspares. If its frequently updated transactional database storage, I'd want to use raid10. Using somethign like the Supermicro 847 chassis, you can get 36 drives plus a server in 4U, and draw about 700 watts actual in use I estimate you'll want about 28 of these servers, which will take two full racks and draw about 20KW, or 180 amps off 120V household circuits (realistically, you'll need 208V for this many servers). You'll also need about 10-15KW worth of air conditioning equipment to deal with the generated 68000 BTUs of heat. HVAC will push your power usage up to the 30-40kW range, or 2500 KWH/month, at $0.20/KWH typical residential power usage, you're looking at a $5000/month power bill, give or take. those 28 SuperMicro servers will cost about $200,000 for the 1000 3TB enterprise nearline disks, plus another $200,000 or so for reasonably well configured servers. 20KVA of redundant UPS and 7 BTU worth of computer room A/C will add a good chunk more to this. Hi John, Yes, our (meaning yours and mine) calculations are different and I am probably wrong. I think I am drawn to the BackBlaze POD for reasons like this. 135TiB in a single enclosure and that is not even using 4TB drives. 2PiB is an estimate for the next 2 years, currently there is a little bit over 480TiB according to adding up various math calculations (databases, du, app data, static files, etc) I see your calculations about power and yes, currently power for just the UPS, Computers, fans and stuff runs me about $400 a month and I only have a few boxes handling the demo of the product. This will be my first summer in my new location in Cupertino and I know I will need to act on cooling really soon. Are you using Comcast in Santa Cruz? -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Can anyone talk infrastructure with me?
I will read this tonight. I have a meeting with Drobo tomorrow and I think this is the same article on of their guys sent me. -- Jason T. Slack-Moehrle On Wednesday, January 25, 2012 at 5:37 PM, aurfalien wrote: On Jan 25, 2012, at 4:50 PM, John R Pierce wrote: On 01/25/12 4:27 PM, Jason T. Slack-Moehrle wrote: can you explain to the calculation to determine that 300gb is 2mbps? 300GB (big B for byte) / 30 days / 24 hours/day / 3600 seconds/hour, and I get 0.12MB/second, so multiplying by 10 to get bits allowing for basic protocol overhead, I come up with 1.2Mbit/sec sustained average. racking 2 PiB (or 2048TiB) of nearline grade storage will require about 1000 3.5 3TB drives, allowing for a reasonable raid level and suitable number of hotspares. If its frequently updated transactional database storage, I'd want to use raid10. Using somethign like the Supermicro 847 chassis, you can get 36 drives plus a server in 4U, and draw about 700 watts actual in use I estimate you'll want about 28 of these servers, which will take two full racks and draw about 20KW, or 180 amps off 120V household circuits (realistically, you'll need 208V for this many servers). You'll also need about 10-15KW worth of air conditioning equipment to deal with the generated 68000 BTUs of heat. HVAC will push your power usage up to the 30-40kW range, or 2500 KWH/month, at $0.20/KWH typical residential power usage, you're looking at a $5000/month power bill, give or take. those 28 SuperMicro servers will cost about $200,000 for the 1000 3TB enterprise nearline disks, plus another $200,000 or so for reasonably well configured servers. 20KVA of redundant UPS and 7 BTU worth of computer room A/C will add a good chunk more to this. are you serious? Nice analysis. Yea the heat footprint alone will require some good AC. I'm open minded and am intrigued on who this will be pulled off but still, sounds crazy and not too well thought out. I do like the not for profit spin which helps the cause out. A quick search found this; http://bioteam.net/2011/08/why-you-should-never-build-a-backblaze-pod/ Basically its a sort of why not to use a backBlaze but we sort did ... - aurf ___ CentOS mailing list CentOS@centos.org (mailto:CentOS@centos.org) http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Theoretical Firewall Specs?
So, the more I look at various ways to lay out my infrastructure, the more I am thinking about specs for hardware. Starting with firewalling. How does one determine the specs for a firewall? What I mean is: 1. motherboard/CPU - p4? Dual-Core? Intel i3, i5, i7? 2. RAM? 4gb? 8gb? More? 32gb? 3. Obviously GB Nics! I am bring about 300gb of traffic a month right now and I expect that to increase significantly with my next offerings. Obviously one answer is to but a beefy motherboard that supports lots of RAM and add more as needed, but where does one start out? How do I know if my firewall would need more RAM? How do I know if the CPU is good enough? I still go back to my Cisco PIX days where these devices were amazing on just 256MB of RAM. We piloted a large chunk of Cornell University's Lab Of Ornithology on 2 of these, but now-a-days it seems that a PIX would not be good enough. Is it because the nature of the internet and data and attacks has changed over time? more aggressive? -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Dedicated Firewall/Router
Hi All, I want to build a dedicated firewall/router as I am launching a NPO and I can host this in my garage. (Comcast offered me a 100 x 20 circuit for $99/mo with 5 statics) I used to run Untangle, but as of version 9, you are forced to use their build in protocol policies versus the firewalling I am used to (Deny All and then opening holes for specific IP's, etc). There are so many firewall distros to choose from. FireStarter, IPCOP, etc. The box I was going to use is a P4, 3GB RAM, 3 GB NICS. I could always use a beefier box also if there was really a need to for such a task. I am used to some Cisco PIX boxes and they just seem fast on hardly any specs. I had a PIX 525 that only had 256mb of RAM about 8 years ago and it was a rockstar. Thoughts, opinions, suggestions are welcome as to what to do! -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Changing Root E-Mail address
Hi All, I installed a new CentOS 5.5 box and I am getting a daily e-mail (I am not sure how this was triggered) with XNTPD logs, HTTP Error and Disk Space). It is being sent to r...@www.6colors.co which bounces, but I have a catch all so it does get to me. How do I change where this e-mail is sent? I have tried in /etc/postfix/main.cd, master.cf, bounce.cf.default, etc and I don't see where this is set. Can anyone help out? Best, -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Changing Root E-Mail address
I installed a new CentOS 5.5 box and I am getting a daily e-mail (I am not sure how this was triggered) with XNTPD logs, HTTP Error and Disk Space). Its LOGWATCH what is doing it. It will be scheduled in / ETC / CRONTAB Thanks Paul, I found it! -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Changing Root E-Mail address
On Wed, 2010-12-22 at 10:25 -0600, Les Mikesell wrote:
If you are running the default sendmail, put an alias for root in
/etc/aliases and restart sendmail or run 'newaliases'.
Or you can edit
/etc/share/logwatch/scripts/logwatch.pl
and change line 64
$Config{'mailto'} = root;
Exactly what I did earlier.
-Jason
___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] httpd log weirdness
Kai, There is nothing deployed on this server as of yet. It simply serves the default apache page when you hit it at this point. So it does seem weird to me to have that show up. I will examine the log manually and see what that yields. -Jason On Dec 20, 2010, at 2:31 AM, Kai Schaetzl wrote: The logs do not contain hostnames like this. This was a request for http://your.example.com/http://www.cablecarmuseum.org/Car42.jpg or something similar. In addition to Eero's explanation it could be a wrong link in one of your pages. Scan your logs manually. Kai -- Get your web at Conactive Internet Services: http://www.conactive.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos Jason T. Slack-Moehrle slackmoeh...@me.com http://gallery.me.com/slackmoehrle FaceTime: slackmoeh...@me.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6
I'm sitting here with my manager and the other admin, as they argue as to when CentOS 6 will be out. Anyone have a clue as to when? Are we getting close? this happens every release. there's no set date. it'll be done when it is completed. Is there a roadmap or expected feature set that we can look at? -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] httpd log weirdness
Hi All, I setup a new Centos 5.5 bod and it will be running a site for me. Apache is running and daily I get e-mailed a log from the box. The log today said: - httpd Begin Requests with error response codes 404 Not Found http://www.cablecarmuseum.org/Car42.jpg: 1 Time(s) -- httpd End - But that is not my domain at all. How would this entry show up in my log? I ping'd the domain above and it does not resolve to the IP of the box or any of my IP's. Can anyone shed some light on this? Best, -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] RAID help
Hi All, I have a new system with 2 Seagate 1TB SATA Enterprise level drives in it. I want to RAID1 (mirror) these drives. This machine will be a web-server in my apartment hosting an HTML video fan site I am creating. Apache, MySQL, PHP etc. This site will easily be 300+ gigs with all the versions of each video, the MySQL won't be huge, but will grow as data for each video is added (i.e location on the server, keyframe name, etc) I am a bit confused by: http://www.centos.org/docs/5/html/Deployment_Guide-en-US/s1-raid-config.html So if I simplify, I must: 1. Create a software raid partition on each drive 2. Create a RAID 1 out of that partition and use a mount point of /boot 3. Create other mount points I might want i.e swap, /home, etc 4. Create RAID1 out of these partitions 5. rinse and repeat this for each mount point I want A few questions: 1. This system support 16gb of RAM. I have 9gb in it, but I will max it out over the next few months as I find great deals on RAM, what should my SWAP space be? I recall a long while ago that SWAP should match physical RAM. 2. Any reason I can't just create a single mount point taking up the entire drive and RAID1 the entire thing? Can anyone recommend some ideal mount points and sizes? 3. What should I account for if my /var/www/html will be very large? Best, -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] RAID help
Hi Mark, Thanks for the reply. 2. Create a RAID 1 out of that partition and use a mount point of /boot Only if you want to mirror the boot partition. Doesn't one want to mirror that partition? 3. Create other mount points I might want i.e swap, /home, etc 4. Create RAID1 out of these partitions Only if you want each directory RAIDed. DO NOT mirror swap. Bad idea. snip Right, I get that, but what is fuzzy is it you, say have a drive with a few partitions that you don't mirror and a few that you do, doesn't the drive you are mirroring to have unused space equal to the amount of the partitions you are not mirroring? A few questions: 1. This system support 16gb of RAM. I have 9gb in it, but I will max it out over the next few months as I find great deals on RAM, what should my SWAP space be? I recall a long while ago that SWAP should match physical RAM. Nope. Received Wisdom said 2-2.5 times RAM. However, in these days of in insanely huge amounts of RAM, it's not really important. At work, I just make swap 2G for everything (and trust me, we've got servers that make your memory look piddly). Thanks. My manager here doesn't like LVM; but if it were me, I'd make that /var/www an LVM virtual partition. That way, you can always add another drive and thow more space into it. I am not as familiar with LVM as I should be, do you have a link to info/tutorial? -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] RAID help
My manager here doesn't like LVM; but if it were me, I'd make that /var/www an LVM virtual partition. That way, you can always add another drive and thow more space into it. Ah I found this: http://www.centos.org/docs/5/html/Cluster_Logical_Volume_Manager/ -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] RAID help
Hi, If you dont know in advance how your storage is allocated the best way, use lvm. The space you dont need today is in the pool and be it /var/www/html or swap or whatever assign it as needed in the future. Note that its maybe better to not put /boot into lvm. I would suggest /dev/md0 - /boot /dev/md1 - lvm with all other partitions including swap OK, I have done this, I need to create mount points and I am not sure how to initially size. How does everyone size /? Since I know my /var/www/html will be large, say 300GB, I can create a mount point for at least that, but with LVM you are saying I can change the size later to increase it? What other mount points should one have (besides swap)? No users will be storing sata on this box. -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] RAID help
Hi Markus, My idea was to assign minimum at now. It could go like this: snip / If you need more space in one of the partitions, just grow it, out of the pool of 947GB. Logical Volumes can be resized online and many filesystems can be grown online (mounted) too. If the initial 1GB for some partition proves to be to low, e.g. it has to be increased on every server you have than adjust it to initial 2GB or whatever size is adequat for you. I am not after numbers at all. My point is: If you dont know how to partition, assign at minimum, allowing for future flexibility. Perfect, makes sense now what should be done. I appreciate the explanation. -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS 5.5 on a new Mac Mini? no CD Driver?
Hi All, I am attempting to install CentOS 5.5 64 bit on my new Mac Mini. I boot to the CD and when I get to selecting where I am installing from (local cd, hard disk, ftp, etc) I select Local CD and it cannot find a driver and wants me to manually specify or use a driver disk. I ave no idea what drive is in this system. Can anyone point me in the right direction? -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 5.5 on a new Mac Mini? no CD Driver?
OK, my problems get worse. I connected an external USB DVD Drive and that worked. Now, however, no hard disks are recognized I was really hoping to run CentOS on this machine, but I guess back to Snow Leopard Server I go On Dec 6, 2010, at 12:54 PM, Jason T. Slack-Moehrle wrote: Hi All, I am attempting to install CentOS 5.5 64 bit on my new Mac Mini. I boot to the CD and when I get to selecting where I am installing from (local cd, hard disk, ftp, etc) I select Local CD and it cannot find a driver and wants me to manually specify or use a driver disk. I ave no idea what drive is in this system. Can anyone point me in the right direction? -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos Jason T. Slack-Moehrle slackmoeh...@me.com http://gallery.me.com/slackmoehrle FaceTime: slackmoeh...@me.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 5.5 on a new Mac Mini? no CD Driver?
Hi Keith, As a test, you might consider getting a Fedora 14 live CD and see if it can find the drives. If so, it may be the same issue. It's possible that the release version of RHEL 6 supports it, if you can get hold of it to test it, or you may just want to put Fedora 14 on it if the difference doesn't bother you too much. I just know CentOS really. Can I adapt easily? I assume things like yum and apache conf, etc are the same? -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
