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• Postfix / Dovecot email setup not storing email

  - by Nick Duffell

  I'm trying to setup postfix / dovecot on my debian server to use it for a mail server. I set everything up according to a tutorial on the net, and it all seemed OK. I can send emails from it, so SMTP is not a problem, however I cannot receive emails. Looking into the files in /home/nick/mail/ I can see that if I send an email to myself (from the server, to itself) the emails are there, but are put straight into the Deleted Messages folder. I don't know why this is. When I send an email from another mail account (not on this server), the emails are nowhere to be found. Also, looking at the log file /var/log/mail.log all seems to be OK, I get the following when I receive an email, which looks OK to me: Nov 7 22:47:22 nickduffell postfix/local[17825]: 05B1173581A6: to=, relay=local, delay=0.37, delays=0.31/0.02/0/0.03, dsn=2.0.0, status=sent (delivered to mailbox) Any ideas? Thanks EDIT: I should also add that although the emails I send myself are in the Deleted Messages folder, and in my mail client I can see that "Trash" has 3 items, I cannot download them in my mail client...

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• Run command remotely on Windows computer from C#

  - by Bilal Aslam

  I have a Windows Server 2008 instance on Amazon EC2 (Amazon's cloud compute platform, which provides VMs in the cloud). It has an external IP, and I have an admin account on the box. I would like to 'bootstrap' this instance remotely i.e. I want to run commands to download, install and configure apps on it, all without having to log on even once. Also, I cannot use psexec on the source computer. I have figured out how to do this to a remote, domain-joined computer using WMI. However, I have NOT been able to do for a remote computer on EC2. Here are some specific restrictions: 1) The remote computer is not part of my domain, hence no Kerberos 2) The remote computer does not have a cert I trust, or vice versa I am sure I am running into to some auth/trust restriction. Is there any way I can run a single command on the remote, given that I have admin privileges? I'm not tied down to using WMI, but I do need to run a command somehow. Feels like this should be a solved problem.

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• Stream video from a computer to a tablet

  - by NullOrEmpty

  I would like to watch presentations and college videos I have on my computer, from my tablet. There are almost a hundred of GB in videos, so I would like to watch them in streaming from my computer. My wife has also tons of videos so I have decided to do a kind of streaming local service to watch the videos from our tablets. I have found an article about how to do it with Internet Information Server, but the article is relaying in an application that is not free (Expression Encoder). Since this is for home fun, I am not willing to pay, so I would like to ask for some free encoder that can do the trick. I have no idea about streaming. Actually, I tried to hang the files directly on IIS, and the browser tried first to download some of them and some other (mp4?) got played badly, so I could not get a smooth video experience. What is missing? What is the deal with H.264 ? Can I roll with VC-1 and play videos in my Android tablet with streaming with an acceptable quality through my WLAN home network? Any better solution? Thanks.

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• Need to boot into chkdsk from USB on Windows netbook

  - by Gaz Davidson

  While attempting to install Ubuntu on a 32-bit Windows XP netbook, the partition resize operation failed due to inconsistencies in the NTFS filesystem (lesson learned: run chkdsk /f in Windows before trying to resize a partition in Linux). Now the installer only gives the option to replace Windows with Ubuntu, the partition can't be resized in gparted, which displays a red exclamation mark and an error log when you click it. To make matters worse, we're also unable to reboot into Windows to get at chkdsk. We get a BSoD when choosing any of the options (including the DOS recovery console thing). The netbook has no CD-ROM drive, contains no recovery image and our only connection to the Internet is via the hotspot on my mobile device. We don't have Windows recovery CDs, but we do have a USB flash drive. We have a 64-bit laptop running Ubuntu 12.04 and Windows 7 (both 64-bit). So, on to the question: Is anyone aware of a way to get into a DOS recovery console and run chkdsk from a USB disk drive, without having to pirate Windows XP or download hundreds and hundreds of megabytes of crap? If it was my device I'd just flatten it, but it isn't. Please help!

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• Map FTP folder to folder on different FTP server

  - by jolt

  In my team we work a lot with FTP. We upload and download files from several different servers daily. Currently every member of the team manages access credentials to each FTP server locally on their own machine. I am looking for a way to set up a central FTP server that we can connect to, and from there, navigate to folders that each represent one of the other FTP servers that we connect to daily. Something like this: In-house central FTP server: |- FolderA --> server A root folder |- FolderB --> server B root folder |- FolderC --> server C root folder A setup like this, would mean that we can manage access credentials on the central FTP server, and team members would only need to have the access credentials to the central FTP server, and from there they could navigate to the other servers through these "virtual" folders. We could potentially develop our own custom FTP server that just forward requests to the remote FTP servers, but i feel like something like this (or something similar) would already have been done. So I'm looking for pointers that could help us find software for Windows that could help us to simplify our current setup. Thank you! Similar (unanswered) question here: FTP management server

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• Why are Microsoft Windows Update taking so long to install?

  - by Mathieu Pagé

  Hi, I have a question that is not related to a problem I have. Just something I'd like to understand. Why are Windows update so long? First Windows Update need to find witch updates you needs and this take about 5 minutes. What is happening behind the scene during those 5 minutes? I would have tought that it would be enough to compare the updates you already have to the complete list of updates or to check the version numbers of a couples files. Then when it comes time to install the upgrades, they're also taking a long time. Some 1 Mb updates takes 2, 3 or 5 minutes to install. What is taking so long. I would have though that it was simply a mater of backup the old file, uncompress the new files, replace the old file. This should be really fast. Is Windows doing something else? For comparison, under Linux, you can find which updates you need in about 20 seconds and installing them is usually pretty fast (The time to uncompress the files). I can do a complete updgrade of my linux machine in about 25 minutes (download 600-800 Mb of updates, hundreds of them and install them) while under windows 25 minutes is the time it needs to find witch update are needed and install about 5-10 updates. I just updated a Windows XP home from SP1a to SP3 + all other updates. It took me more than 3 hours. Doing something like that in the Linux World takes about 30 minutes. I don't want to bash Microsoft here. I genuinly want to know what they do differently that makes it so long.

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• permanent NAS-mount in Ubuntu - wrong fs type, bad option, bad superblock

  - by Emil

  My network drive shows up in the file browser, just like my external usb-harddrive. Moving, running and editing files works. Hovering over it shows smb://lacie-2big/nasdisk . BUT, when I want to save a file, the drive doesn't come up as an option. All I can see is my other places, including my usb-harddrive. I am a complete newbie but I am GUESSING that it has something to do with the mount not being a "real" mount but just a shortcut to the smb location. So I ran the tutorial at https://wiki.ubuntu.com/MountWindowsSharesPermanently about how to "mount a network drive permanently". edited my fstab to //LaCie-2big/nasdisk /media/nasmount cifs guest,uid=1000,iocharset=utf8,codepage=unicode,unicode 0 0 and running sudo mount -a gave me the following error: mount: wrong fs type, bad option, bad superblock on //LaCie-2big/nasdisk, missing codepage or helper program, or other error (for several filesystems (e.g. nfs, cifs) you might need a /sbin/mount. helper program) In some cases useful info is found in syslog - try dmesg | tail or so Now thats a very helpful error message, BUT, before I go any further, I'd be really thankful if one of you could tell me if I'm even in the right ballpark, or if my actual need: to be able to download files (ie torrents) directly to the drive, can be possible as it is already. Question: How to fix "wrong fs type, bad option, bad superblock on //LaCie-2big/nasdisk, missing codepage or helper program" when running mount -a

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• Netbook thinks it is a desktop

  - by Narcolapser

  Question: Are, and if so what, there packages for download that I can get netbook to understand it is not a desktop and that it is a netbook. Info: I'm running an Acer Aspire One with ubuntu desktop 9.10. I tried Ubuntu Netbook Remix first but it has graphics issues with the aspire one. So I changed to Ubuntu Desktop. It was the only distro (after debian, centOS, Fedora, and Knoppix all failed me) that I managed to get working. The only thing is that it is having issues doing things that a netbook/laptop should be doing. most notably is that it will run it's battery dead if I close the screen and throw it into my back pack. It seems to just stay fully on and runs it's self to death. also it will lock up some times if I close the screen and come back to it 10 or 20 minutes later. It also won't retain volume settings when I reboot, as well as screen brightness. and just a couple of other things that I can't quite put my finger on, but just seem amiss. like I said, Essentially my netbook thinks it is a desktop, how can I fix this? ~N

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• nginx server over https using up all available file handles

  - by mmr

  Hi all, So I have an nginx server that's working over https with Sinatra. When I try to download a jnlp file in a configuration that works fine over Mongrel and http (no s), the nginx server fails to serve the file with a 504 error. Subsequent checking of the logs states that this error is due to overflowing the available number of file handles, ie, "24: too many open files". Running sudo lsof -p <nginx worker pid> gets me a huge list of files, all looking like: nginx 1771 nobody 11u IPv4 10867997 0t0 TCP localhost:44704->localhost:https (ESTABLISHED) nginx 1771 nobody 12u IPv4 10868113 0t0 TCP localhost:https->localhost:44704 (ESTABLISHED) nginx 1771 nobody 13u IPv4 10868114 0t0 TCP localhost:44705->localhost:https (ESTABLISHED) nginx 1771 nobody 14u IPv4 10868191 0t0 TCP localhost:https->localhost:44705 (ESTABLISHED) nginx 1771 nobody 15u IPv4 10868192 0t0 TCP localhost:44706->localhost:https (ESTABLISHED) nginx 1771 nobody 16u IPv4 10868255 0t0 TCP localhost:https->localhost:44706 (ESTABLISHED) nginx 1771 nobody 17u IPv4 10868256 0t0 TCP localhost:44707->localhost:https (ESTABLISHED) nginx 1771 nobody 18u IPv4 10868330 0t0 TCP localhost:https->localhost:44707 (ESTABLISHED) nginx 1771 nobody 19u IPv4 10868331 0t0 TCP localhost:44708->localhost:https (ESTABLISHED) nginx 1771 nobody 20u IPv4 10868434 0t0 TCP localhost:https->localhost:44708 (ESTABLISHED) Increasing the number of files that can be opened is no help, because then nginx just blows right past that limit. And no wonder, it looks like it's in some kind of loop to pull all available files. Any idea what's going on, and how to fix it?

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• What is the fastest and best way to convert an rmvb video to mp4/mkv without losing any quality?

  - by Eric Leung

  the file will be played in a popbox3d. my old method was to convert the video using vidcoder (an offshoot of handbrake) using normal settings, but i've recently confirmed that this significantly reduces video and audio quality. i bumped up the conversion quality to 'high profile' and this produced a higher quality video but raised the conversion time to about twice the video length (95 minutes to convert a 45 minute video) on a core2duo laptop. this is less than ideal when a large number of videos need to be converted. i have tried a direct remuxing using mkv toolnix but this produced a video that refused to display video on the popbox3d, which is consistent with the reported: [quote=other old thread] it is possible to put RealMedia A/V in MKV container (used MKVtoolnix) - however, it is awkward to play later. RV40 is only suspected to be based on H.264 - simplify, is not consistent with MPEG-4 AVC specification. [/quote] i have read that ... [quote=from old thread] Under normal circumstances, [ffmpeg] should convert the video to .video.mp4 and the audio to (.wav then to) .audio.mp4, then mux the video and audio into a new .mp4 file and delete the temporary video-only and audio-only files.[/quote] and i am currently attempting to discover how this is done. help? PS: i download a lot of series from asia and for some strange reason, rmvb is a really popular format over there. sometimes, it's the only format that's available. unfortunately, it's a format that is incompatible with the popbox3d, so i have to convert the files before i can watch them on my tv.

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• Regular Windows 7 BSOD with Shrew VPN client

  - by Junto

  The Shrew VPN client appears to be a good alternative to the Cisco VPN Client on x64 Windows 7. However, since installing it I've seen fairly regular BSODs. Minidump attached: Microsoft (R) Windows Debugger Version 6.11.0001.404 AMD64 Copyright (c) Microsoft Corporation. All rights reserved. Loading Dump File [D:\Temp\020810-23431-01.dmp] Mini Kernel Dump File: Only registers and stack trace are available Symbol search path is: SRV*d:\symbols*http://msdl.microsoft.com/download/symbols Executable search path is: Windows 7 Kernel Version 7600 MP (8 procs) Free x64 Product: WinNt, suite: TerminalServer SingleUserTS Built by: 7600.16385.amd64fre.win7_rtm.090713-1255 Machine Name: Kernel base = 0xfffff800`0285f000 PsLoadedModuleList = 0xfffff800`02a9ce50 Debug session time: Mon Feb 8 18:08:12.887 2010 (GMT+1) System Uptime: 0 days 7:52:06.120 Loading Kernel Symbols ............................................................... ................................................................ .............. Loading User Symbols Loading unloaded module list .... ******************************************************************************* * * * Bugcheck Analysis * * * ******************************************************************************* Use !analyze -v to get detailed debugging information. BugCheck A, {0, 2, 0, fffff800028d50b6} Unable to load image \SystemRoot\system32\DRIVERS\vfilter.sys, Win32 error 0n2 *** WARNING: Unable to verify timestamp for vfilter.sys *** ERROR: Module load completed but symbols could not be loaded for vfilter.sys Probably caused by : vfilter.sys ( vfilter+29a6 ) Followup: MachineOwner Machine is a brand spanking new Dell Precision T5500. Superuser appears to have several recommendations for the Shrew VPN Client as an alternative to the Cisco VPN client on 64 bit machines, so I wondered if anyone here has seen this problem and possibly found a solution to the problem? I've decided to run the VPN client under Windows 7 compatibility mode for the moment (Vista SP2) with administrator privileges to see if it makes a difference. Oddly, the VPN doesn't necessarily need to be connected. I've noticed it when browsing using Google Chrome and Internet Explorer, usually when I open up a new tab. If it carries on I think I'll be forced to shell out the 120 EUR for the NCP Client instead.

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• Can't connect to research.microsoft.com on home Qwest DSL connection

  - by rakingleaves

  I have a puzzling issue regarding accessing research.microsoft.com from my home Qwest DSL connection. By default, I frequently get timeouts when accessing research.microsoft.com from Firefox, Safari, or Chrome on my Mac. I also cannot access the site from Internet Explorer in a Windows VM. However, I am able to access the site through proxify.com, so I know the site is not down. Furthermore, I haven't noticed problems accessing other sites (in particular, www.microsoft.com works fine). Also, I can access research.microsoft.com when I'm connected to networks other than my home Qwest DSL connection. Together, the above make me suspect a problem with either my router (Airport Express) or, more likely, my ISP. Anyone have any thoughts on how I can narrow down the problem further? I could call my ISP and tell them the above, but my feeling is that probably won't get me very far. I can get by browsing research.microsoft.com through a proxy, but it would be nice to figure out what's going on here and fix the problem. Oh, the only relevant discussion I found via Google was here: http://forums.whirlpool.net.au/forum-replies-archive.cfm/1311734.html Update: Thanks to those who have tried to help! I found one other thing while Googling that may be vaguely relevant: http://thedaneshproject.com/posts/supportmicrosoftcom-not-working-behind-squid/ Disabling the Accept-Encoding headers in Firefox actually didn't make a difference for me. I just thought the above might spark some other ideas about how mishandling of HTTP headers somewhere might be causing this problem. Thanks again! Another update: In case anyone is still thinking about this; I've found that I can't surf research.microsoft.com using the links text-based browser, but I can reliably download individual files with wget. Maybe that helps?

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• How do I compile DarWINE in PowerPC Mac OS X 10.4.11...?

  - by Craig W. Davis

  So far I've tried using MacPorts which gives me this error: /Error: Cannot install wine for the arch(s) 'powerpc' because Error: its dependency pkgconfig is only installed for the archs 'i386 ppc'. Error: Unable to execute port: architecture mismatch To report a bug, etc... (I'm not allowed to post two links due to being a new poster...)./ I've also tried using the build script I found in the DarWINE 0.9.12 SDK download that I found on the DarWINE SourceForge.net Project Page... I've also tried the build script that I found at http://code.google.com/p/osxwinebuilder/#Building_Wine_via_the_script... None of these attempts to build DarWINE have actually worked. Whenever I build using the DarWINE build script I run it as follows: /1. I decompress the WINE tarball into ~/Downloads/WINE 2. I cd into ~/Downloads/DarWINE. 3. I run ./winemaker ~/Downloads/WINE/wine-1.2.2 or ./winemaker ~/Downloads/WINE/wine-1.2-rc2 (the reason for trying WINE 1.2-rc2 is that some people managed to get it to build on PowerPC Macs running 10.5.8...)./ I made sure to install Xcode Tools 2.5 & all the SDKs too... The net result is either a syntax type error resulting from trying to run the checked out Google Code DarWINE build script or a bunch of make errors when trying to run the official DarWINE build script that I forcefully extracted from the DarWINE 0.9.12 SDK .dmg file by using Pacifist. I trying to build DarWINE on mid-April 2006 1.42 GHz eMac with DL SuperDrive with Bluetooth 2.0+EDR with 2 GBs of RAM running 10.4.11 as I mentioned earlier... (it came with 10.4.4 on the Mac's Restore DVD-ROM that I ordered from 1-800-SOS-APPL & coconutIdentityCard told me it was made on April 12th 2006 & I know that's right because when I reinstalled Mac OS X 10.4.4 it displayed that it was registered/previously owned by a Hawaiian school...): /make[1]: winegcc: Command not found make[1]: * [main.o] Error 127 make: * [dlls/acledit] Error 2./

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• Cisco ASA with CSC module bypassing

  - by Shial

  We recently upgraded from a Watchguard X5500e Peak firewall appliance to a Cisco 5500 ASA with the CSC module. The ASA is running the 8.2 software and the CSC is on the 6.3.1172 software. We've finally gotten everything stabilized after a few weeks of pulling hairs and gnashing of teeth and now its down to trying to setup a few items that were lower on the priority list. With the watchguard we were able to go with the browser to an internal webpage and authenticate against the firewall to allow us to bypass the filters. Useful when a classroom here needs access to streaming media or an executive needs us to download a video. I'm trying to setup something similar but I'm fairly inexperienced with the Cisco devices like this ASA so I'm not sure if its treated as a VPN connection or some kind of ACL. Ideally we would want to setup more than one to limit exposure rather than one thats wide open when used. I did a search and couldn't find anything related to thing in the other questions asked here and I have had no luck googgling it either.

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• Which Linux distributions work on IBM's JS20 PowerPC blade?

  - by Matthew Rankin

  Which Linux distributions have people successfully gotten working on an IBM JS20 Blade, which has the PowerPC 970 processor? Specifically, I'm interested in distributions other than RHEL and SLES. What gotchas need to be watched out for when installing a particular distribution of Linux on the JS20? Non-Specific Distribution Information IBM's Linux on BladeCenter JS20 IBM's eServer BladeCenter JS20 Whitepaper — "The JS20 blade supports all popular Linux distributions including Red Hat®, Inc., and SUSE LINUX." PenguinPPC Distributions List PPCLinux — "This project is a repository of information on how to run GNU/Linux on PowerPC architectures." Ubuntu Specific Information Ubuntu PowerPC FAQ — "Ubuntu 6.10 was the last officially supported PowerPC version of Ubuntu." Ubuntu PowerPC Download Ubuntu 8.04 PowerPC Supported Hardware Ubuntu 9.10 Ports — Mac (PowerPC) and IBM-PPC (POWER5) server install CD. For Apple Macintosh G3, G4, and G5 computers, including iBooks and PowerBooks as well as IBM OpenPower machines. Debian Specific Information Debian on PowerPC —"We may have a 64bit port in the future." Looks like there is only a 32-bit version available currently. Debian on JS20 blades Installing Debian Etch on IBM JS20s Gentoo Specific Information Gentoo Linux Crux PPC Specific Information Crux PPC

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• Somewhat powerful server needed for computationally expensive stuff

  - by Dane Larsen

  So here's my problem. My Dad runs a company that does some rather computationally expensive stuff. This is not supercomputer level stuff, but it does take several hours to run the average job on his Core i7 desktop. He asked me to look into a way to have his customers use the code on an hourly basis, namely via a server. Ideally he'd be able to buy a box for about $1000, and hook it right up to our home connection. Unfortunately, the data that needs to be both sent and received is on the order of several hundred megs. We live in a rural area, and the fastest connection offered is 1.5Mbit/s. Download. It's like .3Mbit/s upload. Not workable. What are the options for this kind of thing? Ideally, we'd have about 2GB of ram, 300-500GB of storage, and a nice dual core, and it has to run some flavor of Linux. Any suggestions? Thanks in advance EDIT: Also, ideally the monthly price would be < $100 per month.

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• Installing mod_pagespeed (Apache module) on CentOS

  - by Sid B

  I have a CentOS (5.7 Final) system on which I already have Apache (2.2.3) installed. I have installed mod_pagespeed by following the instructions on: http://code.google.com/speed/page-speed/download.html and got the following while installing: # rpm -U mod-pagespeed-*.rpm warning: mod-pagespeed-beta_current_x86_64.rpm: Header V4 DSA signature: NOKEY, key ID 7fac5991 [ OK ] atd: [ OK ] It does appear to be installed properly: # apachectl -t -D DUMP_MODULES Loaded Modules: ... pagespeed_module (shared) And I've made the following changes in /etc/httpd/conf.d/pagespeed.conf Added: ModPagespeedEnableFilters collapse_whitespace,elide_attributes ModPagespeedEnableFilters combine_css,rewrite_css,move_css_to_head,inline_css ModPagespeedEnableFilters rewrite_javascript,inline_javascript ModPagespeedEnableFilters rewrite_images,insert_img_dimensions ModPagespeedEnableFilters extend_cache ModPagespeedEnableFilters remove_quotes,remove_comments ModPagespeedEnableFilters add_instrumentation Commented out the following lines in mod_pagespeed_statistics <Location /mod_pagespeed_statistics> **# Order allow,deny** # You may insert other "Allow from" lines to add hosts you want to # allow to look at generated statistics. Another possibility is # to comment out the "Order" and "Allow" options from the config # file, to allow any client that can reach your server to examine # statistics. This might be appropriate in an experimental setup or # if the Apache server is protected by a reverse proxy that will # filter URLs in some fashion. **# Allow from localhost** **# Allow from 127.0.0.1** SetHandler mod_pagespeed_statistics </Location> As a separate note, I'm trying to run the prescribed system tests as specified on google's site, but it gives the following error. I'm averse to updating wget on my server, as I'm sure there's no need for it for the actual module to function correctly. ./system_test.sh www.domain.com You have the wrong version of wget. 1.12 is required.

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• ADSL to T1, Is it worth it for us?

  - by Jack Hickerson

  The company I work for has roughly 45-55 simultaneous users (local and remote/VPN) logged in at a given time. We currently subscribe to an ADSL connection but we have been experiencing slower upload/download speeds as our number of users increase. So, I have a few questions with regards to upgrading our connection to a t1 line. I am aware that the number of channels on a t1 line are much greater then that of our current ADSL connection, but I have heard that the number of active users on a t1 line should be no greater than ~30 for optimal performance. I would think this statement is dependent on what each user was using the connection for and could change depending on this variable. That being said, I have tried to break down how the line would be used in our organization based on our major departments: Sales (~60% of total users) - Everyday surfing, email, research, occasional streaming media Marketing (~15% of total users) - Heavy reliance on uploading/downloading, streaming media, file sharing Other (~25% of total users) - email, rare use of any connection intensive activities. I have considered keeping the ADSL for our local users and dedicating the t1 to our remote users (or vice versa) but the cost is significantly higher then what we had hoped for. All factors being equal (# of users, frequency of downloads/uploads from our current activities) Would you suspect a significant performance increase in making the transition to a t1 line from our current ADSL line? What are your thoughts or recommendations?

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• pdo_mysql installation

  - by Arsenal

  Hello, On my server I'm trying to instal PHP Projekt (6). This requires pdo_mysql however. I thought this installation of pdo_mysql would be rather straightforward... I tried using pecl (pecl install pdo_mysql) after installing devel etc, but this came up with a permission denied error. I solved this by using directories that were accessible. It then came up with a cant run C compiled programs however. It also says to check config.log for more details but ironically config.log is automatically removed if the installation process fails... When I try to compile and output a "hello world".c however, it works perfectly. I then tried to download the pdo_mysql stuff and install in myself (using configure and make install). This seemed to do the job, but when I restarted my apache ... no sign of pdo_mysql anywhere even though I adjusted my php.ini file I have read somewhere that you need to recompile PHP with the option pdo_mysql enabled. But how does one do that (I'm using CentOS4). And isn't there any other way than that??? Thanks!

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• Different network response for indentical co-located machines

  - by Santosh

  We have a situation as follows: We have a two different virtual machines (VMs) on some remote server farm. The machines are identical in terms of hardware/software(OS) configurations. We have a J2EE application running on JBoss on each of those two machines. These two applications are of different version sav V1 on VM1 and V2 on VM2. We observed some degraded response time for application V2 when accessed via public URL. When we accessed the application through a secured VPN, there is hardly any difference. The bandwidth test (upload/download speed, ping etc) shows that VM1 is responding better when accessed via secured VPN. We concluded that the application does not seem to have performance issue. Because, it that's the case the performance degradation should also be there when access via VPN. So we concluded its the network problem. But since those two identical VMs are on same network we are looking for the reasons for different responses. My question is, given the above situation, what could be reasons for such a behavior ?

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• Can I configure Thunderbird 3 to refresh the folder list for an Exchange IMAP account?

  - by Howiecamp

  Background: When used as an IMAP client against Gmail, Thunderbird 3 (may be the case in v2 also, not sure) will refresh it's list of folders (the folders correspond to Gmail labels) when you do "Download/Sync Now..." or restart the Thunderbird client. Any new folders (labels) created in Gmail will sync to the client and any folders moved/changed/deleted folders in Gmail will move/change/delete on the client as well. (Note: Thunderbird has the concept of "subscribing" to IMAP folders (assumingly allowing you to determine which folders you want, rather than bringing all of them down and dragging loads of data across the wire). When used against Gmail, Thunderbird appears to automatically subscribe to all folders (including when folders are newly created in Gmail), so this might be why the refresh is happening properly.) This behavior is what I want with Exchange. When using Thunderbird with Exchange (2007), the folder list doesn't refresh when folders are added/changed/deleted on the server and/or from a different mail client. When I look at the subscription options, some are checked and some are not (not sure why Thunderbird picked some and not others). And when I add new folders on the server and/or from another client, they never even appear in Thunderbird's list of folders, preventing me from subscribing to them.

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• Directory directive: AuthType None but still need an AuthProvider?

  - by Steffen Winkler

  For now I just need the server to let me download files from one specific folder (in my case I chose /opt/myFolder for that task) Distribution is Debian 6.0 *edit_start* Apache version is 2.4, according to their official documentation, the Order/Allow clauses are deprecated and should not be used anymore I'm an idiot: Apache version is 2.2. *edit_end* My directory directives in apache2.conf look like this: <IfModule dir_module> DirectoryIndex index.html index.htm index.php </IfModule> ServerRoot "/etc/apache2" DocumentRoot "/opt/myFolder" <Directory /> Options FollowSymLinks AuthType None AllowOverride None Require all denie </Directory> <Directory "/opt/myFolder/*"> Options FollowSymLinks MultiViews AllowOverride None AuthType None Require all allow </Directory> When I try to access a file inside that folder (http://myserver.de/aTestFile.zip) I get an Internal Server Error. Also Apache writes the following error into it's log: configuration error: couldn't check user. Check your authn provider!: /aTestFile.zip Why would I need an authn provider if I don't want any authentication? Also I hope someone can explain to me what kind of AuthenticationProvider I'd need for that. Everytime I search for those things I get pointed at people asking how to protect files/directories with passwords or restrict access to some IP addresses, which doesn't really help me. ok, since I've Apache version 2.2, here is the error I get when using the Order/Deny/Allow commands instead of AuthType/Require: Invalid command 'Order', perhaps misspelled or defined by a module not included in the server configuration.

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• Diagnosing a BSOD involving USB

  - by David Ebbo

  [Running Win7 Ultimate 64 bit] My new HP Pavilion Elite HPE-450t has been plagued by BSDO crashes since I got it about 5 weeks ago. The crashes are somewhat rare, sometimes not occurring for 3 or 4 days. I have spent a lot of time trying to isolate the device that could be at fault, but I have seen crashes with only the keyboard and mouse plugged in (as USB devices), and I tried two sets of keyboard/mouse, so I'm running out of ideas. :( The WhoCrashed tool gave this info about my latest BSOD: crash dump file: C:\Windows\Minidump\121310-11887-01.dmp This was probably caused by the following module: usbport.sys (USBPORT+0x2DE4E) Bugcheck code: 0xFE (0x5, 0xFFFFFA8008F571A0, 0x80863B34, 0xFFFFFA80092F2510) Error: BUGCODE_USB_DRIVER file path: C:\Windows\system32\drivers\usbport.sys product: Microsoft® Windows® Operating System company: Microsoft Corporation description: USB 1.1 & 2.0 Port Driver Bug check description: This indicates that an error has occurred in a Universal Serial Bus (USB) driver. The crash took place in a standard Microsoft module. Your system configuration may be incorrect. Possibly this problem is caused by another driver on your system which cannot be identified at this time. I looked at http://msdn.microsoft.com/en-us/library/ff560407(VS.85).aspx, and for Parameter1 = 0x5, it says "A hardware failure has occurred due to a bad physical address found in a hardware data structure. This is not due to a driver bug". Should I conclude that it's a hardware issue in the machine itself, rather than a bad USB driver or USB device? Here is the MiniDump, in case someone can get more info out of it: http://ewt52q.blu.livefilestore.com/y1peS4Ce8nSK1SXghzMDoxDWXlaEu-EKCJsv25y8y5DXXIUzZ9U0_tYgFJXd939fykwa0zRmx98IW0PYG18GioqKAuARYjtspSA/121310-11887-01.dmp?download&psid=2

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• IPSec Tunnel to Amazon EC2 - Netkey, NAT, and routing problem

  - by Ernest Mueller

  Hey all, I'm working on getting an IPSec VPN working between Amazon EC2 and my on-premise. The goal is to be able to safely administer stuff, up/download data, etc. over that tunnel. I have gotten the tunnel up in openswan between a Fedora 12 instance with an elastic IP and a Cisco router that's also NATted. I think the ipsec part is OK, but I'm having trouble figuring out how to route traffic that way; there's no "ipsec0" virutal interface because on Amazon you have to use netkey and not KLIPS for the vpn. I hear iptables may be required and I'm an iptables noob. On the left (Amazon), I have a 10. network. Box 1 is privately 10.254.110.A, publically IP 184.73.168.B. Netkey tunnel is up. Box 2 is publically 130.164.26.C, privately 130.164.0.D And my .conf is: conn ni type= tunnel authby= secret left= 10.254.110.A leftid= 184.73.168.B leftnexthop= %defaultroute leftsubnet= 10.254.0.0/32 right= 130.164.26.C rightid= 130.164.0.D rightnexthop= %defaultroute rightsubnet= 130.164.0.0/18 keyexchange= ike pfs= no auto= start keyingtries= 3 disablearrivalcheck=no ikelifetime= 240m auth= esp compress= no keylife= 60m forceencaps= yes esp= 3des-md5 I added a route to box 1 (130.164.0.0/18 via 10.254.110.A dev eth0) but that doesn't do it for predictable reasons, when I traceroute the traffic's still going "around" and not through the vpn. Routing table: 10.254.110.0/23 dev eth0 proto kernel scope link src 10.254.110.A 130.164.0.0/18 via 10.254.110.178 dev eth0 src 10.254.110.A 169.254.0.0/16 dev eth0 scope link metric 1002 Anyone know how to do the routing with a netkey ipsec tunnel where both sides are NATted? Thanks...

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• What should I be doing while I wait for a progress bar?

  - by Malnizzle

  So I am sitting here waiting for a progress bar to run (20 mins or so), and was wondering how best to use my time as a SysAdmin. I debated not posting this question briefly, as this could get flagged as subjective, but I think it's an important question, and a question that can be legitimately answered (per the FAQ) I know this something a lot of sys admins deal with, especially if they are client-based I would venture to guess. There is a lot of material out there about how to multi task, but SysAdmin work is unique in this area as well. I could switch over to another project, but I could get wrapped up in that, and forget about the original project I was working on, and that's hard if you are billing a client for your time, both for tracking your time, as well as being fair to that client. I could check ServerFault, but that isn't directly work related, I could sort my email, so on and so forth. What do you do, or what should I do when I have time waiting for a progress bar? Thanks! (download done, back to work!)

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