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• Windows 7 Black Screen On Boot, Seperate Bootable VHD Works Fine

  - by David Osborn

  I have a Window 7 x64 install with a bootable VHD (also Windows 7 x64). I was having problems getting my homeserver to do backups (VSS erred) so I ran check disk and used a tool from MS (cleanc2r.exe) to remove an empty Q drive from the VHD that I believe was a result of installing Office 2010 Beta. (All of this was done on the bootable VHD, not the main install.) Now I can't boot into the main install. It gets past the Starting Windows screen and then goes black. I can still boot into the bootable VHD and everything works fine from there. I have tried to boot the main install in Safe Mode/Safe Mode with Networking/and Safe Mode command prompt and it has the same issue. I ran chkdsk /r on the main install and after doing all the work there was a message about correcting some free space that was marked as allocated and also that it was unable to make an entry into the event log. I tried the startup repair utility and it found no problems. I don't see the setting for restore to last know good configuration so I couldn't do that. I don't recall installing anything new to the main install nor having hooked up any new hardware recently.

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• Setting up Squid -> VPN connection

  - by Nedlinin

  I recently purchased a VPS and am wanting to use it as a VPN server. However, it has bandwidth limitations. So, I figured since I already have a local Squid proxy caching things for me, I could have users connect to the proxy and the proxy connect to the VPN. Then when someone hits the web, Squid will serve it from cache if available and, if not, it will use the VPN to download it. My issue is, I have no idea how to set this up :p - Essentially I want Machine - Squid - VPN. My VPN is running on Ubuntu Server with pptpd. Squid is running on a local Arch Linux box. Squid and the VPN are both working perfectly independently. Any help on how to have Squid push traffic through the VPN would be greatly appreciated! Also: I don't actually want to use the VPN for all traffic. Otherwise, I'd just connect my router to the VPN and be happy. I only want to use it for web traffic from specific machines on the network.

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• Does Hyper-V support SCSI Pass-through discs in a Server 2003 R2 VM?

  - by Peter Bernier

  I'm running into some difficulties getting pass-through disks to be accessible to a Hyper-v server 2003 r2 virtual machine. Host OS : Server 2008 R2 full w/Hyper-V role Guest OS : Server 2003 R2 (Windows Home Server) The guest's OS disk is a pass-through disk on the IDE controller (not the best solution, but I can live with it). My storage disks will be pass-through disks on the SCSI controller. I'm able to see all of the disks that I'll be using for the VM on the host without issue. The problem that I'm having is that I can't seem to get the guest OS to be able to 'see' the storage drives (as pass-through disks on the SCSI controller). Here's what I'm doing : On the host, the storage drive is set to 'Offline' just like the OS disk (this is required for pass-through to work). In the VM, the storage drive is on the SCSI controller. Hyper-V Integration Tools are installed in guest. That's as far as I'm able to get. I don't see the drive in Computer Management, or in Windows Explorer (I've tried with an unformatted disk, as well as after formatting a partition). I am able to see a removable device that lists the disk's model number in the Guest, but I can't seem to access the storage. (I get an entry in Device Manager that needs drivers, but nothing on the Integration Tools disc works..) Trouble-shooting steps I've tried : If put the pass-through drive on the IDE controller, I can see it in the Guest. If put the storage drive 'Online' in the host and create a VHD on it on the SCSI controller, I can see it in the Guest. I suppose I could create a fixed-size VHD that consumes the entire disk, but I'd rather not have that overhead. I've also extracted the contents of the Integration Tools drivers (x86 and amd64) and tried pointing the disk controller to each of those, with no luck. Can anyone offer suggestions as to how I can get this to work properly?

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• mysql is not connecting after data directory change

  - by user123827

  I've changed data directory in /etc/my.cnf. datadir=/data/mysql socket=/data/mysql/mysql.sock I also moved mysql folder from /var/lib/mysql/ to /data/mysql Now when i connect to mysql i get following error: [root@youradstats-copy mysql]# mysql ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) also when i see /var/logs/msqld.log i get following messages in that: InnoDB: Setting log file /data/mysql/ib_logfile0 size to 512 MB InnoDB: Database physically writes the file full: wait... InnoDB: Progress in MB: 100 200 300 400 500 120704 7:43:31 InnoDB: Log file /data/mysql/ib_logfile1 did not exist: new to be created InnoDB: Setting log file /data/mysql/ib_logfile1 size to 512 MB InnoDB: Database physically writes the file full: wait... InnoDB: Progress in MB: 100 200 300 400 500 InnoDB: Cannot initialize created log files because InnoDB: data files are corrupt, or new data files were InnoDB: created when the database was started previous InnoDB: time but the database was not shut down InnoDB: normally after that. 120704 7:43:36 [ERROR] Plugin 'InnoDB' init function returned error. 120704 7:43:36 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed. I shut down mysql properly before doing these changes and then started it properly but dont know why getting these messages. please help to solve issue as i have changed socket path in my.cnf but still its pointing to old path...

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• SQL Server Express backup/restore error: The Media Family on Device is Incorrectly Formed.

  - by Chris

  Basically, I'm having this issue: http://www.sqlcoffee.com/Troubleshooting047.htm What I'm doing is running a script I found online (http://pastebin.com/3n0ZfybL) to do a full backup, then rar'ing up the file and moving it to my computer. The CRC of the backup file inside the rar is correct on both computers, so there is no problem with data being corrupted when I transfer it. But then I go and try to restore the database on my dev computer here and I get the errors "sql server cannot process this media family" ... "msg 3013". Why is this happening? I'd test out the backup on the server I'm getting it from, but it's a production server. Edit: I was about to say how I wasn't doing anything stupid like trying to restore the database to an earlier version of SQL Server, but apparently I am: From: Microsoft SQL Server 2008 (SP1) - 10.0.2531.0 (Intel X86) Mar 29 2009 10:27:29 Copyright (c) 1988-2008 Microsoft Corporation Express Edition on Windows NT 6.0 (Build 6002: Service Pack 2) To: Microsoft SQL Server 2005 - 9.00.3042.00 (Intel X86) Feb 9 2007 22:47:07 Copyright (c) 1988-2005 Microsoft Corporation Express Edition on Windows NT 6.0 (Build 6001: Service Pack 1) Let me get back to this post after I reinstall this.

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• Issues with sustained traffic with PFSense

  - by Farseeker

  Last week we had to replace our PFSense firewall because it had a catastrophic hardware failure. All but one of the NICs were taken out of the old server and put into the new one. The one NIC that was not moved was the LAN NIC as this is on-board. The other NICs are all WAN connections and the must all be present (i.e. I can't disable one just for the sake of testing) After re-installing PFSense and restoring our backup of the configuration, everything came back online just fine, however on the new hardware any download that takes longer than about 10 seconds just times out in the middle. Example 1: Downloading from Microsoft.com goes at about 900k/sec and times out after about 10 seconds (thus, just under 10Mb of content) Example 2: Downloading from cnet.com goes at about 300k/sec and times out after about 10 seconds (thus, about 3Mb of content). By times out, I mean that the download just stops, and you have to pause/resume to get the next part done, repeat and rinse until the download is complete. However it's not consistant, sometimes it's 10 seconds, sometimes it's 4 seconds, and it sometimes you can't even load a heavy HTML page because the page never finishes. I assume this is most likely because PFSense does not like the onboard NIC, as this is the primary difference between the two servers. It's recognised as NFE0, and there's no room in the server for any more NICs and I don't have any dual-port NICs handy to experiment with a different LAN connection. I've never had to troubleshoot this sort of issue before. Can anyone give me some pointers about where to start? Linux is not my forte so please be kind!

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• Terminal server performance over high latency links

  - by holz

  Our datacenter and head office is currently in Brisbane, Australia, and we have a branch office in the UK. We have a private WAN with a 768k link to our UK office and the latency is at about 350ms. The terminal server performance is reeeeealy bad. Applications that don't have too much animation or any images seem to be okay. But as soon as they do, the session is almost unusable. Powerpoint and internet explorer are good examples of apps that make it run slow. And if there is an image in your email signature, outlook will hang for about 10 seconds each time a new line is inserted, while the image gets moved down a few pixels. We are currently running server 2003. I have tried Server 2008 R2 RDS, and also a third party solution called Blaze by a company called Ericom, but it is still not too much better. We currently have a 5 levels dynamic class of service with the priority in the following order. VoIP Video Terminal Services Printing Everything else When testing the terminal server performance, the link monitored using net-flows, and have plenty we of bandwidth available, so I believe that it is a latency issue rather than bandwidth. Is there anything that can be done to improve performance. Would citrix help at all?

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• hdparm - how to secure erase SATA SSD over USB

  - by cc0

  I have been following this guide on how to secure erase an SSD (trying to improve the performance of mine, which currently only writes at about 30mb/s seq). However, I'm using an USB--Sata docking device to avoid having the harddrive frozen. Apparently using this solution the SATA device is recognized as a SCSI drive, which is giving me trouble. I use the "hdparm -I /dev/sda" command with those parameters, and I get the error; HDIO_DRIVE_CMD (identify) failed: Invalid Exchange After a lot of googling on the issue I can't seem to find anyone who has actually solved this problem. However, I have not tried to just go ahead and use the secure erase. So I'm not sure if this would actually still work. I would love any and all input I can get on this, especially on whether it will still work to do a secure erase with the drive being recognized as a SCSI drive. The drive itself is a Samsung 256gb SSD (pm800), I'm sure you can understand my reluctance to go through this procedure without feeling reasonably safe that I won't mess it up beyond repair.

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• How do I troubleshoot a segfault in Ubuntu that occurs when typing a bogus command?

  - by Alan

  We've got a production server running Ubuntu 11.10. We're encountering segfaults that appear under various conditions. The simplest reproducible case is when we login to an ssh session as our administrative user and enter a bogus command. You'd expect the standard "command not found" error message. Instead, we get a segfault in python. The user's default shell is /bin/bash. For example: $ asdf Segmentation fault Info from /var/log/syslog: Jul 6 15:39:20 PROD001 kernel: [2155960.605695] python[7873]: segfault at 0 ip (null) sp 00007fffd030b808 error 14 in python2.7[400000+233000] Some details about the server: $ uname -a Linux PROD001 3.0.0-16-server #29-Ubuntu SMP Tue Feb 14 13:08:12 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux $ cat /etc/issue Ubuntu 11.10 \n \l Before we ask the IT department to reinstall the O.S., I'd like to understand what got us here. The system and/or this particular user's environment is suspect. Many people have touched this server over the past year, so I'm wondering if it is missing libraries, incorrectly installed packages, etc. I'm hoping that if we can understand what's going wrong in this case, it will help explain why we're getting segfaults in a couple of other scenarios. Any tips on troubleshooting this segfault will be appreciated!

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• How to do custom sorting using unix sort?

  - by jewelia

  I'm using unix sort to sort a comma delimited file with multiple columns. Thus far, this has worked perfectly for sorting the data either numerically or in alphabetical order: Example file before any sorting: C,United States,WA,Tacoma,f,1 A,United States,MA,Boston,f,0 B,United States,NY,New York,f,5 A,Canada,QC,Montreal,f,2 A,Bahamas,Bahamas,Nassau,f,2 A,United States,NY,New York,f,1 Sort the file: $ sort -t ',' -k 2,2 -k 3,3 -k 4,4 -k 5,5r -k 6,6nr tmp.csv Sorted result: A,Bahamas,Bahamas,Nassau,f,2 A,Canada,QC,Montreal,f,2 A,United States,MA,Boston,f,0 B,United States,NY,New York,f,5 A,United States,NY,New York,f,1 C,United States,WA,Tacoma,f,1 Here is the issue: I want to sort column 2 based on a custom sort, meaning I want United States first, then Canada, then Bahamas: Desired sort: A,United States,MA,Boston,f,0 B,United States,NY,New York,f,5 A,United States,NY,New York,f,1 C,United States,WA,Tacoma,f,1 A,Canada,QC,Montreal,f,2 A,Bahamas,Bahamas,Nassau,f,2 Is there some way to pass unix sort a custom sort order that it can then apply? Something like: $ sort -t ',' -k 2,2:'United States, Canada, Bahamas' -k 3,3 -k 4,4 -k 5,5r -k 6,6nr tmp.csv Thanks!

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• Apache doesn't immediately notice a change in the document root

  - by Tom

  We use capistrano for website deployments and our Apache document root is a symlink to a particular code release. The deployment procedure switches the symlink from the old release to the new release as the final step of the deployment. We are migrating our webservers from real servers running RHEL 5.6 to Amazon EC2 virtual machines running Ubuntu 11.10 and the new servers are suffering from a problem where Apache doesn't immediately notice the change to it's document root when the symlink is switched. It can take a second or so (and I think I've even seen it take a couple of minutes). It's kind of like Apache has cached the physical path of the symlink for some time. Does anyone know some Apache settings I could look at to get it to "scan" for changes to it's served files quicker. Thoughts: I read that the disks on virtual machines are much slower (since they are network attached storage). Perhaps the filesystem cache somehow works differently too? If so, is there anything that can be done? The website runs PHP code. Perhaps there is some PHP config differences between RHEL and Ubuntu? I checked realpath_cache_ttl but both servers have it commented out: e.g. ; Duration of time, in seconds for which to cache realpath information for a given ; file or directory. For systems with rarely changing files, consider increasing this ; value. ; http://www.php.net/manual/en/ini.core.php#ini.realpath-cache-ttl ;realpath_cache_ttl = 120 We do use the APC opcode cache but don't think it's the issue due to experimentation. The PHP code is in different file paths for each deployment and we ensure stat=1. Here is a similar question that is very interesting: 294107 - but doesn't provide an answer for me. One solution would be to reload Apache everytime we modify the document root symlink. I'll do this if we can't find another solution.

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• How to connect to local instance of SQL Server 2008 Express

  - by Billy Logan

  I just installed SQL Server 2008 Express on my windows 7 machine. I previously had 2005 on here and used it just fine with the old SQL Server Management Studio Express. I was able to connect with no problems to my PC-NAME\SQLEXPRESS instance. I uninstalled 2005 and SQL Server Management Studio Express. I then installed SQL Server 2008 Express on my machine and elected to have it install SQL Server Management Studio. Now, when I try to connect to PC-NAME\SQLEXPRESS (with Windows Authentication, like I always did), I get the following message: Cannot connect to PC-NAME\SQLEXPRESS. A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server, Error: -1) For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=-1&LinkId=20476 When I went to the help link it mentions, the help page suggests the following: * Make sure that the SQL Server Browser service is started on the server. * Use the SQL Server Surface Area Configuration tool to enable SQL Server to accept remote connections. For more information about the SQL Server Surface Area Configuration Tool, see Surface Area Configuration for Services and Connections. I did try starting the SQL Server Browser, but don't see that the Surface Area Configuration is installed with this express version. I had seen another user with an almost exact same issue that was missing the database engine on install. If that were the case how could i test for that and where would i go to download that install. Thanks in advance, Billy

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• Rails/Mongo across multiple different geo-regions

  - by wmarbut

  I have a system that by necessity requires physical presence in three or more different locations and I need advice on structuring in such a way that my database stays replicated in a timely manner without horrible latency. I've seen mysql access and replication be incredibly slow when the application server was trying to talk to a node that wasn't physically collocated. In this case I am using mongodb. The stack is linux/passenger/ruby/rails/mongodb. The database is write heavy and read light. The infrastructure is Amazon EC2 The application layer must be physically located in 3 or more different locations. I can't justify this requirement further than it is a requirement. The database, however needn't be located in more than one location if it can be written to quickly from other locations. From reading mongo's documentation, mongo replication seems like more of a candidate than sharding b/c my datastore is not huge. However I don't see anything that addresses the issue of speed for servers communicating across large distances with potentially high latency.

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• TeamCity sends inadequate responses after Selenium tests

  - by Dmitriy Sukharev

  I have a TeamCity 7.0.2 at CentOS 6.2 server without X Server. I've installed x11-fonts*, xvfb, firefox, xauth, extracted env. variable DISPLAY=localhost:1, and started xvfb. After that I could start Selenium tests using maven. Tests are executed, but there's an issue with TeamCity. Usually TeamCity starts hehaves absolutely inadequate (it confuses images at the page, sends xml or strange text ampersants and numbers in responses and is a bit slower), also tests are executed 4 times slower (1h 15m) at server than at tester Windows 7-based machine (25m). It worth to notice that tests launch two Jetty servers for tested application (one for REST-services application and another for client). In TeamCity I set JVM command line parameters: -Xms256m -Xmx1224m -XX:MaxPermSize=320m, and Additional Maven command line parameters ends with "-DMAVEN_OPTS=-Xmx1024m" (without quotes). Also both web-services and TeamCity uses the same Oracle server (but different Oracle users). Finally TeamCity and its build agent is at the same server. Server has only 4GB of RAM, but during testing there're 400MB of RAM and 1.2GB of swap. TeamCity and Firefox uses about 65% of CPU during testing. There's no firefox process after end of testing. My knowledge about Selenium is weak. I only know that we use 2.20.0 version of selenium-java maven dependency. Please help me to determine why TeamCity sends wrong responces after Selenium tests. I've tried to give you all information I have, but feel free to ask me for more information.

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• Does WebDAV even work on IIS 7? I say nay

  - by FlavorScape

  I've tried every configuration from the top 10 stack overflow and server fault results for WebDAV 405 on IIS (for verb PROPFIND and PUT). I'm running server 2008 SP2. Followed all the instructions here. I'm no stranger to configuring servers. This has gotten nowhere after 8 hours. Confirmed system.webserver in applicationhost.config: <add name="WebDAV" path="*" verb="PROPFIND,PROPPATCH,MKCOL,PUT,COPY,DELETE,MOVE,LOCK,UNLOCK" modules="WebDAVModule" resourceType="Unspecified" requireAccess="None" /> Port 443 with basic auth, same issue. Tried port 80 with windows auth. Broken. (405) Windows authentication. Check. Added authoring rules for default site and application. Check. Not the firewall. Check. added "Desktop Experience" role feature Tried HTTPS with Basic Authentication on port 443. Does not work. No other services are running like Sharepoint. Check. confirmed user has read/write NT level permissions for the folder/virtual dir tried net use * http://localhost /user:MYDOMAIN\me myPass get error 1920, if I don't authenticate I get error 67 confirmed I'm not applying filtering to WebDAV: <requestFiltering> <fileExtensions applyToWebDAV="false" /> <verbs applyToWebDAV="false" /> <hiddenSegments applyToWebDAV="false" /> 405 - HTTP verb used to access this page is not allowed. The page you are looking for cannot be displayed because an invalid method (HTTP verb) was used to attempt access. SHOULD I JUST GIVE UP? Other questions that helped none: 405 - ‘Method not Allowed’ adding service hosted in IIS7 webdav on iis7.5 - simply cannot make it work http://studentguru.gr/b/kingherc/archive/2009/11/21/webdav-for-iis-7-on-windows-server-2008-r2.aspx

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• Why are snapshots considered as temporary backups not real backups?

  - by Samselvaprabu

  I am using VMware ESXi. In our team we use to provide snapshots for long term backup. Then we faced issues like memory spillover and the server got hang up. I started reading in VMware knowledgebase articles and everywhere. Everywhere it was recommended not to have snapshots for a long time. Even VMware advised to keep snapshots for maximum of three days. But our team kept asking us to have at least two permanent snapshots (till deleting the VM). Sometimes we may use the VM for a year). one snapshot is for fresh machine state. (So when we complete testing an application, we will revert back to fresh state and install another application) (If I did not allow that, I may often need to host the VM.) Next snapshot for keeping the VM in some state (maybe they would have found an issue and keep that state for some time. Or they may install prerequisites for the application and keep the machine ready for testing.) Logically, their needs seems to be fair. But if I allow that, I am to permit them to hold the snapshots for long time. We are not using our VM as a mail server or database server. Why is keeping snapshots for long time having an adverse effect? Why are snapshots considered as temporary backups, not real backups?

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• unable to ping hostname, but \\hostname\\c$ works!?

  - by ciscokid

  I'm having a strange issue on my initial lab setup. Situation: Host with OS Server 2008 R2 64bit, on this host a Virtual Machine in Hyper-V with OS Server 2008 SP1 32bit. The virtual machine has a fixed ip, and is referring to itself for the preferred DNS Server (dns server role has been installed). The host has tcp/ip set to automatic (so automatic ip from router, and dns/gateway = router). Both are able to ping each other on IP address (same ip range). Both are NOT able to ping each other on hostname (sounds logic because virtual machine dns server does not yet have a dns record for the hostmachine). But here's the strange thing: I am able to set up a working network mapping on the Virtual Machine to the host: \hostname\c$. The first thing I thougt was 'something' is blocking the ping request, so I completely disabled Windows Firewall on both Virtual Machine and host. Still pinging on hostname in both ways didn't work, yet I am able to access the network mapping on hostname. There is no extra software installed on both systems (clean windows server 2008).Can someone tell me what is causing this? I always thought: ping on IP address works = network mapping on IP address works. Pinging on hostname doesn't work = network mapping on hostname doesn't work neither. Where am I wrong? Looking forward to your advice!

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• Troubleshooting wireless connection problem / site survey?

  - by johnnyb10

  I just started in the IT department of a small company (200 users) and it's clear that one of the main problems that is driving everyone crazy is the spotty nature of the wireless connectivity throughout the office, particularly in certain conference rooms. This is a huge problem because the connection often drops during important presentations to clients. I was hired to help ease the load on the existing IT admin, who has done a great job, but is overloaded with many other tasks to deal with. So I would like to try to help out with this wireless issue. I am looking for advice on the best way to solve this problem--a realistic troubleshooting methodology that does not require me to spend any money. So far, I've experimented with Ekahau Heat Mapper, which is free and helps create a site survey. But I'm not exactly sure what I'm looking for or if there are other programs/tools/methods I should try as well. Any advice would be greatly appreciated. [Some background: The wireless setup consists of an HP ProCurve Mobility MSM (710?) controller that controls 10 access points throughout the building. There are three virtual wireless networks configured on the controller: one seems to be a default that cannot be changed, one is for internal employees and authenticates via Active Directory, and the third is a guest network for visitors. When I use HeatMapper, these show up as three different SSIDs, with different MAC addresses, all on the same channel. At first I thought maybe this would cause interference, but this seems to be the way the controller works;apparently, it automatically configures the channels to avoid interference from the other APs on the network.]

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• Error during configuring kerberos5 using macports

  - by ario

  While trying to install libmemcached via MacPorts, I hit the following issue: libmemcached @0.40 +universal ---> Computing dependencies for libmemcached ---> Dependencies to be installed: cyrus-sasl2 kerberos5 ---> Configuring kerberos5 Error: org.macports.configure for port kerberos5 returned: configure failure: command execution failed Error: Failed to install kerberos5 It tells me to look in the log for details. Here's the last bit of the log file: :info:configure checking for setupterm in -lcurses... no :info:configure checking for setupterm in -lncurses... no :info:configure checking for tgetent... no :info:configure configure: error: Could not find tgetent; are you missing a curses/ncurses library? :info:configure configure: error: /bin/sh './configure' failed for appl/telnet :info:configure Command failed: cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_net_kerberos5/kerberos5/work/krb5-1.7.2/src" && ./configure --prefix=/opt/local --disable-dependency-tracking --mandir=/opt/local/share/man :info:configure Exit code: 1 :error:configure org.macports.configure for port kerberos5 returned: configure failure: command execution failed :debug:configure Error code: NONE :debug:configure Backtrace: configure failure: command execution failed while executing "$procedure $targetname" :info:configure Warning: targets not executed for kerberos5: org.macports.activate org.macports.configure org.macports.build org.macports.destroot org.macports.install :error:configure Failed to install kerberos5 :debug:configure Registry error: kerberos5 not registered as installed & active. invoked from within "registry_active ${subport}" invoked from within "$workername eval registry_active \${subport}" :notice:configure Please see the log file for port kerberos5 for details: /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_ports_net_kerberos5/kerberos5/main.log It seems to say it's missing ncurses. Looks like it's there though, since if I run port installed I see these: ncurses @5.7_0 ncurses @5.9_1 (active) ncursesw @5.7_0 Any ideas on how to get around this error?

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• How to prevent nginx from locking files on mounted samba partition in Centos 6

  - by Bruce Kirkpatrick

  I'm using nginx 1.3.8 inside a centos 6.3 virtualbox 4.2.4 virtual machine. The system is running the latest software available via yum update. The host OS is windows 7. The site files nginx is serving are on mounted samba partition, which is a folder on the host Windows system. I.e., inside linux, nginx paths are referring to /home/vhosts and this is mounted from D:\vhosts\ on windows. The samba partition is mounted as root with 777 privileges. /etc/fstab looks like this, but with real ip, username, password: //hostip/vhosts /home/vhosts cifs username=username,password=SECRETPASSWORD,uid=root,gid=root,file_mode=0777,dir_mode=0777,rw,_netdev 0 0 I.e. linux/nginx reads from the windows share, and not the opposite. in /etc/samba/smb.conf, I have tried to disable all samba locking features, but it seems to have no effect even after rebooting the virtual machine. locking=no share modes=no oplocks = no level2 oplocks = no kernel oplocks =no I'm receiving "Access is denied" errors in Windows or linux when attempting to overwrite the javascript file in windows that has been accessed at least once with nginx. If I run "service nginx reload", the lock is removed and I'm able to save the file. That's why I think it is nginx causing the lock. The same problem occurs with directories. However, that may be a different issue not related to the use of samba. I'm using samba so that I can manage the source code outside of the virtual machine. Also note that after I run "service nginx reload", the file I'm editing is actually automatically deleted from the windows host. SOLVED: I just reviewed my nginx.conf file. It appears the "open_file_cache" feature is what is causing the lock and deleted files. When I set this option to open_file_cache off;, My problem is resolved. I will repost as the answer when it allows me to do so.

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• haproxy: Is there a way to group acls for greater efficiency?

  - by user41356

  I have some logic in a frontend that routes to different backends based on both the host and the url. Logically it looks like this: if hdr(host) ends with 'a.domain.com': if url starts with '/dir1/': use backend domain.com/dir1/ elif url starts with '/dir2/': use backend domain.com/dir2/ # ... else if ladder repeats on different dirs elif hdr(host) ends with 'b.domain.com': # another else if ladder exactly the same as above # ... # ... else if ladder repeats like this on different domains Is there a way to group acls to avoid having to repeatedly check the domain acl? Obviously there needs to be a use backend statement for each possibility, but I don't want to have to check the domain over and over because it's very inefficient. In other words, I want to avoid this: use backend domain.com/url1/ if acl-domain.com and acl-url1 use backend domain.com/url2/ if acl-domain.com and acl-url2 use backend domain.com/url3/ if acl-domain.com and acl-url3 # tons more possibilities below because it has to keep checking acl-domain.com. This is particularly an issue because I have specific rules for subdomains such as a.domain.com and b.domain.com, but I want to fall back on the most common case of *.domain.com. That means every single rule that uses a specific subdomain must be checked prior to *.domain.com which makes it even more inefficient for the common case.

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• How to auto-cc a system email account any time a user creates an appointment

  - by Ferdy

  I will not bother explaining my full architecture or reasons for wanting this in order to keep this question short: Is it possible to auto-cc a certain email account any time a Exchange user creates an appointment or meeting in his own calendar? Is it possible using rules? Our Exchange 2007 server is outsourced, I cannot change the configuration or install plugins server-side Preferably, it still should work server-side, because users may use the Outlook client but also Outlook Web Access Is there any other way, perhaps using group policies? My conclusion so far is that the only viable way to accomplish this is to build an Outlook add-on. The problem there is that it will need to be managed for thousands of desktop users and that the add-on will not work when using another client (OWA, mobile). An alternative architecture could be to pull the information from the user's calendar on a scheduled basis. Given that we are talking about a lot of users, scalability is a major issue, this has also been confirmed by Microsoft. Can you confirm that my thinking is correct or do you have any other solutions?

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• SQL Server 2008 Remote Access

  - by Timothy Strimple

  I'm having problems connecting to my SQL Server 2008 database from my computer. I have enabled remote connections as described in this answer (http://serverfault.com/questions/7798/how-to-enable-remote-connections-for-sql-server-2008). And I have added the ports listed on the microsoft support page to our Cisco Asa firewall and I'm still unable to connect. The error I'm getting from the SQL Management Studio is: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: TCP Provider, error: 0 - A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.) (Microsoft SQL Server, Error: 10060) Once again, I have double and triple checked that remote connections are enabled under the database properties and that TCP is enabled on the configuration page. I've added tcp ports 135, 1433, 1434, 2382, 2383, and 4022 as well as udp 1434 to the firewall. I've also checked to make sure that 1433 is the static port that is set in the tcp section of the database server configuration. The ports should be configured correctly in the firewall since http/https and rdp are all working and the sql server ports are setup the same way. What am I missing here? Any help you could offer would be greatly appreciated. Edit: I can connect to the server via TCP on the internal network. The servers are colocated in a datacenter and I can connect from my production box to my development box and vice versa. To me that indicates a firewall issue, but I've no idea what else to open. I've even tried allowing all tcp ports to that server without success.

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• Server reporting incorrect mime type for css files

  - by Becky

  We have a VPS server that we host our websites on. I have written a CMS using CodeIgniter. On one of the interfaces, I am attempting to upload a css file to the system. This worked correctly when we had it hosted on shared hosting. Since we've moved it to the VPS, I am getting an "incorrect filetype" error. It all comes down to the fact that the server is reporting a mime type of text/x-c for the css file rather than text/css. I logged in via shell and ran the following command on an existing valid css file (to make sure it wasn't an issue with either CodeIgniter or with php). file --brief --mime 'filename.css' 2>&1 The server gave me the following in response to my command: text/x-c; charset=us-ascii My question ... is there some sort of server setting that I need to tweak to get the server to correctly identify the css file as text/css? Do I just have to add a mime type for the css files to the server? I found the mime types file (etc/mime.types), and it just hase video types and a couple other that I have no idea what they are. There is nothing in there for css or images or html files. Unless I'm looking in the wrong spot. I'm not a server person, so I'm hoping someone can help me out. Some server specs: Apache/2.2.22 (Unix) php 5.3.13 Server API = CGI/FastCGI the fileinfo php extension appears to be disabled

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• Synergy on macbook with osx mavericks wifi connection

  - by user332956

  I'm trying to set up Synergy with my macbook pro running OS X 10.9.3 as a client and my Windows 7 desktop as a server. I'm having some pretty bad connection problems though when I try to use my mac. Every couple seconds the mouse or the keyboard will stop working entirely then come back. I ran some tests and found that the ping from my desktop to my mac would be very high every third ping or so(1000+ ms) or sometimes even time out. If I ping my desktop from my mac the pings are all reasonably low. I believe that this is a power saving feature of Mavericks and I have found a way to get around it by continually pinging my router on my mac, keeping my wifi card from going to sleep. I'm using this right now to type this up with synergy and have had zero issues. Has anyone else ran into this issue and found a better solution? So far, I think my best bet would be to buy an ethernet adapter but I'd rather not have yet another cable running across my desk.

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