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• HP-UX (PA-RISC|Itanium) virtualisation on (x86-64|x86)

  - by Oleksandr Bolotov

  I'm looking for a way to run HP-UX (for educational purposes), but I don't have HP hardware right now. These options are not very suitable for me: HP TestDrive program - Looks like it was discontinued 2 years ago. Ski - looks like only CPU emulator. Is it worth trying? HPPAQEMU - Patch for old Qemu for HPPA-Linux guest-OS only. Is it worth trying? hp-ux Aires - I don't need to visualize HP-PA on HP-Itanium. That question is about using HP-UX without HP hardware.

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• Nginx case-insensitive reverse proxy rewrites

  - by BrianM

  I'm looking to setup an nginx reverse proxy to make some upcoming server moves and load balanced implementations much easier within our apps. Since our servers are all IIS case sensitivity hasn't been an issue, but now with nginx it's becoming one for me. I am simply looking to do a rewrite regardless of case. Infrastructure notes: All backend servers are IIS Most services are WCF services I am trying to simplify the URLs so I can move services around as we continue to build out I can't set my location to case insensitive due to the following error: nginx: [emerg] "proxy_pass" cannot have URI part in location given by regular expression, or inside named location, or inside "if" statement, or inside "limit_except" block in /etc/nginx/sites-enabled/test.conf:101 The main part of my conf file where I am trying to handle the rewrite is as follows location /svc_test { proxy_set_header x-real-ip $remote_addr; proxy_set_header x-forwarded-for $proxy_add_x_forwarded_for; proxy_set_header host $http_host; proxy_pass http://backend/serviceSite/WFCService.svc; } location ~* /test { rewrite ^/(.*)/$ /svc_test/$1 last; } It's the /test location that I can't get figured out. If I call http://nginxserver/svc_test/help I get the WCF help page to display correctly and I can make all available REST calls. This HAS to be a boneheaded regex issue on my part, but I have tried several variations and all I can get are 404 or 500 errors from nginx. This is NOT rocket science so can someone point me in the right direction so I can look like an idiot and just move on?

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• Mac OS X Server 10.6 - Apple's software mirrored RAID worth it?

  - by Arko

  Hi, I am installing an Intel Xserve (Quad core Xeon) with Snow Leopard Server (10.6) on two 80Gb 7200rpm SATA HDs. I created a mirrored RAID set using Disk Utility with those two drives, all went fine. I was then asking myself if this is really a good idea. I know that an hardware RAID system would be better, but what about this software RAID? Have you any feedback on this? Will it work fine if one HD breaks down? Does this affect performance? [UPDATE] In short: Hardware RAID is better than software RAID which is better than none. Thank you all for the answers, they were very helpful. Especially Gordon's script to monitor failures. As Apple's software RAID is pretty silent about a drive failure.

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• QoS basics on a Cisco ASA

  - by qbn

  Could someone briefly explain how to use QoS on Cisco ASA 5505? I have the basics of policing down, but what about shaping and priorities? Basically what I'm trying to do is carve out some bandwidth for my VPN subnets (in an object-group called priority-traffic). I've seen this Cisco QoS document, however configuring shaping and priority-queue don't seem to have any effects in my test. A full download of the linux kernel from kernel.org will boost a ping to a server via VPN sky high. Policing has been successful in passing this test, although it doesn't seem as efficient (I cap non-vpn traffic at 3 of my 4.5 megabits of bandwidth). Am I misunderstanding the results of the test? I think there is some simple concept I'm not grasping here. EDIT: Here is my config thus far (I have 4.5 megabits of bandwidth): access-list priority-traffic extended permit ip object-group priority-traffic any access-list priority-traffic extended permit ip any object-group priority-traffic access-list priority-traffic extended permit icmp object-group priority-traffic any access-list priority-traffic extended permit icmp any object-group priority-traffic access-list non-priority-traffic extended deny ip object-group priority-traffic any access-list non-priority-traffic extended deny ip any object-group priority-traffic access-list non-priority-traffic extended permit ip any any priority-queue outside queue-limit 440 class-map non-priority-traffic match access-list non-priority-traffic class-map priority-traffic match access-list priority-traffic class-map inspection_default match default-inspection-traffic policy-map type inspect dns preset_dns_map parameters message-length maximum 512 policy-map global_policy class inspection_default inspect dns preset_dns_map inspect ftp inspect h323 h225 inspect h323 ras inspect rsh inspect rtsp inspect sqlnet inspect skinny inspect sunrpc inspect xdmcp inspect sip inspect netbios inspect tftp policy-map outbound-qos-policy class non-priority-traffic police input 2500000 police output 2500000 class priority-traffic priority service-policy global_policy global service-policy outbound-qos-policy interface outside

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• Very High Interrupt CPU usage in Win2k3 VM on vSphere

  - by Darragh

  Hi, I've been testing some software in a server virtual environment and I've noticed I get a huge amount of CPU usage on the Interrupts process. My question is, how does this relate to the virtual hardware platform as the rate is allot lower in a real system. Some how the hypervizor scheduler works hard to over come this problem but not as well as on real hardware does. Obvious things are high I/O and disk access but this application mostly just sits and works in memory allot. If anyone has experienced the same, please let me know. thanks in advance Screenshot: Process Explorer

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• Unconvert Text File from Binary Format

  - by Hammer Bro.

  I've got a rather large CSV file (~700MB) which I know to consist of lines of 27-character alpha-numeric hashes; no commas or anything fancy. Somehow, during its migration from Windows to Linux (via winSCP and then a few regular SCPs), it has converted into some kind of binary format I am unfamiliar with. If I open the file in vi, everything appears fine, and it says [converted] at the bottom, although I know it's not a line endings issue (and dos2unix doesn't help). If I 'head' the file, it looks proper except for a "ÿþ" at the beginning of the first line. If I open up the file in nano, however, I see the "ÿþ" at the start and then "^@" before every character (even newlines and EoF). If I try to re-save or copy the file (say via: head file.csv short.txt), this special encoding is preserved. I copied the first ten lines out of vi (which displays it properly) into my Windows clipboard via my SSH client, then pasted it into a new text file, test.txt. This file is visually identical when opened in vi (and similar through 'head', minus the "ÿþ"), although it's roughly half of the filesize. Additionally, file test.txt test.txt: ASCII text file short.txt short.txt: I have no idea what format this once-text file got converted to (it's notoriously hard to search the internet for symbols), but surely there must be some way to convert it back. Any ideas?

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• Why can't “knife data bag from file” find existing json file on chef server?

  - by ellisera

  Summary: I'm running into a problem with "knife data bag from file", where knife doesn't recognize the .json data bag file pulled down from a remote git repo. Background: I'm currently trying to transition from chef-solo use to chef server while using the cookbooks, data bags and other chef info from our remote git repo. I've currently pulled down a copy of our git repo and set the cookbook path and data bag path in knife.rb. I also loaded the cookbooks, made adjustments, etc. Details: When trying to load our .json data bags by doing "knife data bag add from file FOLDER FILE" it looks like it worked until I do "knife data bag list" and it comes up blank. So I decided to try adding the edit option at the end to see what's being loaded, if it is. This is the error I get: knife data bag from file local_settings test.json -e nano ERROR: Could not find or open file 'test.json' in current directory or in 'data_bags/local_settings/test.json' The data bag file does exist, in the proper location, in a tested, working json file. I've also sometimes gotten an error saying "could not open data bag "local_settings". I would obviously like to keep the data bag path within the appropriate git repo folder to be able to keep track of changes in a more centralized location (our git repo, as opposed to the chef server). Any solutions, advice or pointers in the right direction are appreciated.

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• Use icacls to make a directory read-only on Windows 7

  - by Dave G

  I'm attempting to test some filesystem exceptions in a Java based application. I need to find a way to create a directory that is located under %TMP% that is set to read-only. Essentially on UNIX/POSIX platforms, I can do a chmod -w and get this effect. Under Windows 7/NTFS this is of course a different story. I'm running into multiple issues on this. My user has "administrative" right (although this may not always be the case) and as such the directory is created with an ACL including: NT AUTHORITY\SYSTEM BUILTIN\Administrators <my current user> Is there a way using icacls to essentially get this directory into a state where it is read-only PERIOD, do my test, then restore the ACL for removal? EDIT With the information provided by @Ansgar Wiechers I was able to come up with a solution. I used the following: icacls dirname /deny %username%:(WD) In the page located here I found this in the remarks section: icacls preserves the canonical order of ACE entries as: * Explicit denials * Explicit grants * Inherited denials * Inherited grants By performing the above icalcs command, I was able to set the current user's ability to write or append files (WD) to the directory to deny. Then it was a question of returning it to a state post test: icacls dirname /reset /t /c Done

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• MySQL remote access not working - Port Close?

  - by dave.zap

  I am not able to get a remote connection established to MySQL. From my pc I am able to telnet to 3306 on the existing server, but when I try the same with the new server it hangs for few minutes then returns # mysql -utest3 -h [server ip] -p Enter password: ERROR 2003 (HY000): Can't connect to MySQL server on '[server ip]' (110) Here is some output from the server. # nmap -sT -O localhost -p 3306 ... PORT STATE SERVICE 3306/tcp closed mysql ... # netstat -anp | grep mysql tcp 0 0 [server ip]:3306 0.0.0.0:* LISTEN 6349/mysqld unix 2 [ ACC ] STREAM LISTENING 12286 6349/mysqld /DATA/mysql/mysql.sock # netstat -anp | grep 3306 tcp 0 0 [server ip]:3306 0.0.0.0:* LISTEN 6349/mysqld unix 3 [ ] STREAM CONNECTED 3306 1411/audispd # lsof -i TCP:3306 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME mysqld 6349 mysql 10u IPv4 12285 0t0 TCP [domain]:mysql (LISTEN) I am running... OS CentOS release 5.8 (Final) mysql 5.5.28 (Remi) Note: Internal connections to mysql work fine. I have disabled IPtables, the box has no other firewall, it runs Apache on port 80 and ssh no problem. Had followed this tutorial - http://www.cyberciti.biz/tips/how-do-i-enable-remote-access-to-mysql-database-server.html I have bound the IP address in my.cnf user=mysql bind-address = [sever ip] port=3306 I even started over by deleting the mysql folder in my datastore and running mysql_install_db --datadir=/DATA/mysql --force Then recreated all the users as per the manual... http://dev.mysql.com/doc/refman/5.5/en/adding-users.html I have created one test user CREATE USER 'test'@'%' IDENTIFIED BY '[password]'; GRANT ALL PRIVILEGES ON *.* TO 'test'@'%' WITH GRANT OPTION; FLUSH PRIVILEGES; So all I can see is that the port is not really open. Where else might I look? thanks

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• Suggestions for SOHO networking gear

  - by jakemcgraw

  I'm a software developer in my day to day job but have landed a contract position to spec out and install the computer equipment for a small office. Ease of use (easy installation, low maintenance and good support) is priority number one, it supersedes price by a wide margin. The installation we had in mind would support up to ten workstations. I was originally going to go with Netgear hardware for firewall, switch duties: Firewall: NETGEAR UTM25-100NAS Switch:NETGEAR GS724T but have been told Sonicwall firewalls are easier to configure. So, sysadmins, if ease of use was priority number one, what hardware would you purchase for firewall, switch duties?

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• Getting USB boot to work in SmartOS on HP ProLiant N40L

  - by user126579

  I recently downloaded SmartOS and tried running it on my HP ProLiant N40L, but it always fails on boot. After dd'ing the image to the USB stick, I plug it into the internal USB header and turn the machine on. After selecting from GRUB, it displays the following: , bss=0x0 It sits there for 2-4 minutes, then finally boots the OS and displays the following: WARNING: Couldn't read ACPI SRAT table from BIOS. lgrp support will be limited to one group. SunOS Release 5.11 Version joyent_20120614T184600Z 64-bit Copyright (c) 2010-2012, Joyent Inc. All rights reserved. WARNING: kvm: no hardware support After that, it hangs. I've tried this with two different USB sticks. I've seen some mentions on the SmartOS website about people running it on an N40L, booting from USB, so maybe it's just broken hardware? Has anyone gotten this working?

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• What is causing a vm to exhibit packet loss?

  - by d03boy

  We have a pretty nice piece of hardware set up to run multiple virtual machines in vmware and one of the vm's is an instance of Windows Server 2003 running SQL Server 2005. For some reason we occasionally see 10-20 seconds of straight packet loss to this machine from remote machines (my workstation) as well as other vm's on the same physical hardware. I am using PingPlotter to keep a close eye on the packet loss. So far we've turned off flow control on the NIC but we are already running out of other things to try. What might be causing this and how can I identify the problem? Note: We also have another server with a very similar configuration with the same type of problem to a lesser extent (because its not used as heavily?)

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• How can you know what is w3wp.exe doing? (or how to diagnose a performance problem)

  - by Daniel Magliola

  I'm having a performance problem in a site we've made, and I'm not exactly sure how to start diagnosing it. The short description is: We have a very small site (http://hearablog.com) with very little traffic, in a crappy dedicated server, CPU is always very high, sometimes it stays at 100% for minutes, and w3wp.exe is taking most of it. A typical scenario is w3wp.exe takes 60%, and SQL Server takes about 30%. Our DB is pretty small too. Long description and more details: The site is hosted in a very crappy server by Cari.Net. From the beginning we had the feeling that the server didn't quite behave correctly, like some things would take just too long, so this could be a configuration problem from the get go. It may also be that we are getting a virtual server while we're supposed to have a dedicated one, although we have no evidence that'd indicate this, except for the fact that the server tends to be quite slow. The server is Windows 2008 Standard 64-bit, with SQL 2008 Express Hardware is a Celeron 2.80 GHz, 1Gb RAM The website is developed in ASP.Net MVC, using Entity Framework for data access. Now, this is pretty crappy hardware, but i've had other servers with these guys, with equivalent (or worse) HW, and performance is much better than this one. That said, the other servers have W2003 and SQL2005, and I'm using ASP.Net "WebForms" 2.0, no MVC, no LINQ, no EF; so I'm not sure whether going to 2008 / the other stuff means a big performance penalty is expected. I'm serving MP3 files (5-20 Mb) regularly, which is a slightly unusual load, maybe that is causing some kind of problems? Would that cause w3wp to use a lot of CPU? Disk usage seems very low. Memory is usually around 90%, but disk usage seems to indicate it's not paging much. I get tons of e-mails every day about SQL timeouts, for queries taking over 30 seconds, although all our queries are pretty straightforward (or should be, but EF may be screwing it up). This is what resource monitor looks like in one of these "sprints" of 100% CPU, in case there's anything useful there. And a snapshot of some performance counters: Now, what confuses me very much is that CPU usage of w3wp is just so high. It shouldn't be doing much really... So my questions are... Is there any way of finding out "what" it is doing? Maybe even profile it? Any performance counters I should be looking at? Is this to be expected given this hardware/software configuration? Is this could be cause by some kind of configuration failure, where would you start looking? Thank you VERY much. Daniel Magliola

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• Laptop LCD Screen Flickering

  - by BSchlinker

  I recognize this is most likely not a software error and likely lies in one of the hardware components. However, about 3 months ago I replaced the LCD screen on this laptop. The company which I bought it through provided a 12 month warranty. Before I contact them, I would like to verify that the problem is most likely the LCD screen and not the inverter. Any comments? I recognize its impossible to diagnose hardware remotely, but it would be nice to know if there is a high probability it could be a component other then the LCD screen.

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• The difference between desktop-series HDD drives and server-series

  - by FractalizeR

  Hello. What are the main differences between desktop-series hard disks and server-series? The obvious things I can see are: durability (server hardware mostly more qualitative and have more warranty) and power consumption (server hardware more focused on performance, than on power economy). Also server disks are usually a little faster, but it seems, that it is not always the case. May be there are some other reasons, that make you choose server-oriented series (Seagate ES drives, for example) over desktop-oriented ones (Seagate Barracuda series)? What are they?

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• How to Creat custom content for nginx error 502 page, keep origin url on browser

  - by user123862

  i'm trying to get custom language and message for nginx error page but keep url on browser.. not success for eg: i go to url : xaluan.com/aaa/bbb.html on the time server down.. nginx will show error 502. with the same url but custom message as my language. test 1. I created a custom page at /usr/local/nginx/html/205.html as following config but it show on web site when error is default nginx error at domain.com/50.html ( the content of webpage not same as i created) error_page 502 /502.html; location = /502.html { root /usr/local/nginx/html; } test 2. Then i create same page at my www domain folder /home/xaluano/public_html/502.html but this keep redirect me to root domain.com/502.html the content now same as i created. but.. the url still not as i need error_page 502 /502.html; location = /502.html { root /home/xaluano/public_html; internal; } EDIT UPDATE for more detail 10/06/2012 please download my nginx config http://pastebin.com/7iLD6WQq and vhost config following: http://pastebin.com/ZZ91KiY6 == the case test.. if apache httpd service stop: #service httpd stop then open browser go to: xaluan.com/modules.php?name=News&file=article&sid=123456 I will see the 502 error with the same url on browser address == Custome error page I need the config which help when apache fail .. will show the custom message tell user wail for 1 minute for service back then refress current page with same url ( refresh I can do easy by javascript ), Nginx dosent change url so java-script can work out. any help will be great.. thank in advance

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• Audio doesn't work on Windows XP guest (WS 7.0)

  - by Mads

  I can't get audio to work with on a Windows XP guest running on VMware Workstation 7.0 and Ubuntu 9.10 host. Windows fails to produce any audio output and the Windows device manager says the Multimedia Audio Controller is not working properly. Audio is working fine in the host OS. When I open Multimedia Audio Controller properties it says: Device status: The drivers for this device are not installed (Code 28) If I try to reinstall the driver I get the following error message: Cannot Install this Hardware There was a problem installing this hardware: Multimedia Audio Controller An Error occurred during the installation of the device Driver is not intended for this platform Has anyone else experienced this problem?

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• Issues with Server 2012 using DFSR running on Hyper-V 2012

  - by Bryan

  We have a number of Server 2012 systems, all of which run virtualised on Hyper-V 2012 server. We are having problems with two such virtual instances, both of which are used as file servers, whereby they occasionally stop responding to requests to serve files to clients. After logging on to the server, attempts to shut it down gracefully fail (no error, it just fails to acknowledge a shutdown request). Recovery is a case of power cycling the server(s) from the Hyper-V console. These two servers don't server a large number of users (one serves no more than 6 users, and the other serves around 20 users), they are in the same domain, but on different physical hardware (and at different sites). They don't lock up at the same time. They both use DFSR to replicate a fairly large amount of data between themselves (200GB) over ADSL connections, this is working fine, and we have been using DFSR to do this on the previous two generations of server OS we have used (Server 2008 R2 and Server 2003 - both of which were physical installs however). Today, when one of the servers crashed, I noticed an entry in the event log, which looked similar to the following: Log Name: Application Source: ESENT Date: 27/11/2012 10:25:55 Event ID: 533 Task Category: General Level: Warning Keywords: Classic User: N/A Computer: HAL-FS-01.example.com Description: DFSRs (1500) \\.\E:\System Volume Information\DFSR\database_C8CC_101_CC00_EC0E\ dfsr.db: A request to write to the file "\\.\E:\System Volume Information\ DFSR\database_C8CC_101_CC00_EC0E\fsr.log" at offset 4423680 (0x0000000000438000) for 4096 (0x00001000) bytes has not completed for 36 second(s). This problem is likely due to faulty hardware. Please contact your hardware vendor for further assistance diagnosing the problem. When the server started up again, I went to find the event log entry to investigate further and found that the event log entry was no longer there (I assume it was in memory but failed to write to disk before the server was powered off, for the reason mentioned in the message). I found the above message by searching back further in the event log. Both of these virtual servers have their E: volumes fully allocated as opposed to dynamically expanding, and there are no other issues on any of the other virtual servers (which include server 2012, server 2008 R2 and Ubuntu 12.04 x64). There are no signs of IO, memory or CPU starvation on the host systems. I've used performance counters on the affected virtual servers to monitor memory usage (including non paged pool usage), as well as CPU and network utilisation, and none of these show any signs of trouble when the issue arises. I would have thought our configuration isn't that uncommon, so I'm wondering if anyone else has seen this, and managed to resolve the problem?

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• Adeos's role w.r.t Linux

  - by Anisha Kaul

  The event pipeline The fundamental Adeos structure one must keep in mind is the chain of client domains asking for event control. A domain is a kernelbased software component which can ask the Adeos layer to be notified of: · Every incoming external interrupt, or autogenerated virtual interrupt; · Every system call issued by Linux applications, · Other system events triggered by the kernel code (e.g. Linux task switching, signal notification, Linux task exits etc.). From: Life with Adeos: http://www.xenomai.org/documentation/xenomai-2.4/pdf/Life-with-Adeos-rev-B.pdf Question: Adeos is supposed to be between the hardware and the Linux kernel, I can understand about Adeos telling the Linux about hardware interrupts but Why should Adeos know about the "system call" issued by Linux?

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• OSX Dual Boot Snow Leopard and Windows

  - by Abhishek

  Am I able to install Mac OSX Snow Leopard on an x86 certified Apple hardware computer and then dual boot with Windows 7?

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• PHP/Linux File Permissions

  - by user1733435

  May I ask a question about file permission. I set up Ubuntu server where Apache got running. I have simple php upload form and able to upload file to /var/www/site/uploads as follows. sandbox@sandbox-virtual-machine:/var/www/site/uploads$ ll total 1736 drwxrwxrwx 2 www-data www-data 4096 Oct 18 02:53 ./ drwxrwxrwx 3 sandbox sandbox 4096 Oct 18 00:42 ../ -rw-r--r-- 1 www-data www-data 145998 Oct 18 02:53 3d wallpaper pic.jpg -rw-r--r-- 1 www-data www-data 166947 Oct 18 02:53 3D Wallpapers 9.jpg -rw-r--r-- 1 www-data www-data 1451489 Oct 18 02:53 6453_3d_landscape_hd_wallpapers_green.jpg Is there anyway to upload files and they show up as -rw-r--r-- 1 sandbox sandbox 145998 Oct 18 02:53 3d wallpaper pic.jpg -rw-r--r-- 1 sandbox sandbox 166947 Oct 18 02:53 3D Wallpapers 9.jpg -rw-r--r-- 1 sandbox sandbox 1451489 Oct 18 02:53 6453_3d_landscape_hd_wallpapers_green.jpg so that I could straight away feed them to waiting/running shell script. Right now waiting script(move,checksums,rename,resize,etc) unable to do anything to uploaded files with attributes of www-data. If I just do as local account, such as sandbox@sandbox-virtual-machine:/var/www/site/uploads$touch testfile then the script is able to run as I would like to. Any suggestion would be grateful,thanks in advance as well. Thanks for everyone giving help to me,that I was able to progress. Now I am close to getting solved and append the output sandbox@sandbox-virtual-machine:/var/www/site/uploads$ ll total 388 drwxrwxrwx 2 www-data www-data 4096 Oct 18 04:22 ./ drwxrwxrwx 3 sandbox sandbox 4096 Oct 18 04:17 ../ -rw-r--r-- 1 sandbox sandbox 166947 Oct 18 04:21 3D Wallpapers 9.jpg -rw-r--r-- 1 sandbox sandbox 219808 Oct 18 04:20 adafruit_pi.png -rw-rw-r-- 1 sandbox sandbox 0 Oct 18 04:22 test How may I set permission to uploaded files like 'test' only w difference in middle group. Such as adafruit_pi.png Vs test. Which statement shall I insert to php code,please?

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• How to set up a software VPN when moving a server to the cloud

  - by Neal L

  I work in a small company with one office in Dallas and another in Los Angeles. We run a Fedora server at our Dallas location and use a Linksys RV042 at each location to create a VPN connection between the sites. Every time the power or internet goes out in Dallas, our server is inaccessible so the entire company goes down. Because of this, we would like to use a shared server in the cloud (something like Linode) to avoid this problem. As a relative novice to VPN configurations, I would like to know if it is possible to set up a software VPN on the cloud server and connect our local networks in Dallas and LA to that VPN. I've read about openvpn and ssh vpns, but I don't know it is the best option. Could anyone with some experience point me in the right direction on the right combination of software VPN and hardware for this? We're open to new hardware to make this happen. Thanks!

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• Finding wireless interference, on Mac

  - by Cawas

  Based on another similar question, what are good software and hardware options for "finding wireless interference" for the apple?

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• HT Link Sync Error after Ubuntu 10.04 LTS Installation

  - by marklab

  Update 1 I just assembled an exact replica of this server, and successfully installed Ubuntu 10.04 LTS in a RAID10 configuration. The success was confirmed by a login to the initial account. There must be a hardware component that is faulty. Since the error mentions HT, which I believe to be Hyper Threading, I will start with the CPUs. Please indicate if this error is more strongly associated with any other piece of hardware. Or make a recommendation of another approach that would be good for this issue. Issue I was attempting to install Ubuntu 10.04 LTS on this system with the board RAID10 configured. However, the installation failed at the partitioning stage by rebooting the system. Upon reboot, there is an error report after POST listing the following: Node0: NB WatchDog Timer Error Node1: HT Link Sync Error Node2: HT Link Sync Error ... Node7: HT Link Sync Error Press F1 to continue/resume. After pressing F1 the system will boot from the Ubuntu 10.04 LTS installation disc. However, it will fail at the same stage, and go through the same process from there. Hardware CPU: AMD OPTERON X12 6172 G34 2.1G 18MB Motherboard: Supermicro H8QG6-F HDD: WD Caviar Green 2TB 5.4K RPM Troubleshooting I disabled RAID10 on the system, and installed the Ubuntu on a single drive. It installed successfully. I then went back to a RAID10 setup and attempted to install on the system again, and was able to make it through the partitioning stage. However, upon reboot, the system reported: Error: file not found, and then booted me into the Grub Rescue console. I feel I have aggravated the problem at this point because when I attempted to install from the boot disc again, the system reboots upon hitting enter to even start the installation process. It does the same thing when trying to boot from an Ubuntu 11 disc. I have not been able to find any information on this HT Link Sync Error, which I feel may have started the problems I am experiencing now with the installation of the OS. I am also aware that Ubuntu is said not to be supported by the motherboard according to Supermicro's site. However, since I was able to install it successfully on a single drive, I do not believe it is incompatible. I would like to know a reason for why it's failing to install on/off.

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• Barracuda spam filter alternative - virtualization/appliance friendly?

  - by ewwhite

  I've sold and deployed Barracuda spam and web filters for years. I've always thought that the functionality was good (Barracuda Central, easy interface, effective filtering), but the hardware on the entry to midrange units is a weak point. They have single power supplies, no RAID and limited monitoring support. Personally, I think Barracuda would make a killing selling their software as a VMWare appliance, but I'm looking for something similar that I can deploy as a consultant, but will be easy for customers to manage. It should have support for server-grade hardware or the ability to be deployed as a virtual machine. Is there anything out there that's close?

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