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• Does MS Forefront TMG cache authentication?

  - by SnOrfus

  I'm testing a client machine that makes requests to a biztalk server using a forefront machine as a web proxy. Upon first test I put in an invalid name/password into the receive port and received the correct error message (407). Then, I set the correct name/password and everything worked correctly. From there, I kept the correct information in the receive port but put an invalid name/password into the send adapter but the process completed successfully (should have failed with 407). I've ensured that both the recieve and send ports are not bypassing the proxy for local addresses. So the only thing that seems to make sense is if TMG is caching the authentication request coming from the machine I'm working on. Is this thinking correct, and if so, does anyone know how to disable it in TMG?

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• CentOS 5.4 NFS v4 client file permissions differ from original files & NFS Share file contents

  - by p4guru

  Having a strange problem with NFS share and file permissions on the 1 out of the 2 NFS clients, web1 has file permissions issues but web2 is fine. web1 and web2 are load balanced web servers. So questions are: how do I ensure NFS share file contents retain the same permissions for user/group as the original files on web1 server like they do on web2 server ? how do I reverse what I did on web1, i tried unmount command and said command not found ? Information: I'm using 3 dedicated server setup. All 3 servers CentOS 5.4 64bit based. servers are as follows: web1 - nfs client with file permissions issues web2 - nfs client file permissions are OKAY db1 - nfs share at /nfsroot web2 nfs client was setup by my web host, while web1 was setup by me. I did the following commands on web1 and it worked with updating db1 nfsroot share at /nfsroot/site_css with latest files on web1 but the file permissions don't stick even if i use tar with -p command to perserve file permissions ? cd /home/username/public_html/forums/script/ tar -zcp site_css/ > site_css.tar.gz mount -t nfs4 nfsshareipaddress:/site_css /home/username/public_html/forums/scripts/site_css/ -o rw,soft cd /home/username/public_html/forums/script/ tar -zxf site_css.tar.gz But checking on web1 file permissions no longer username user/group but owned by nobody ? but web2 file permissions correct ? This is only a problem for web1 while web2 is correct ? Looks like numeric ids aren't the same ? Not sure how to correct this ? web1 with incorrect user/group of nobody ls -alh /home/username/public_html/forums/scripts/site_css total 48K drwxrwxrwx 2 nobody nobody 4.0K Feb 22 02:37 ./ drwxr-xr-x 3 username username 4.0K Feb 22 02:43 ../ -rw-r--r-- 1 nobody nobody 1 Nov 30 2006 index.html -rw-r--r-- 1 nobody nobody 5.8K Feb 22 02:37 style-057c3df0-00011.css -rw-r--r-- 1 nobody nobody 5.8K Feb 22 02:37 style-95001864-00002.css -rw-r--r-- 1 nobody nobody 5.8K Feb 18 05:37 style-b1879ba7-00002.css -rw-r--r-- 1 nobody nobody 5.8K Feb 18 05:37 style-cc2f96c9-00011.css web1 numeric ids ls -n /home/username/public_html/forums/scripts/site_css total 48 drwxrwxrwx 2 99 99 4096 Feb 22 02:37 ./ drwxr-xr-x 3 503 500 4096 Feb 22 02:43 ../ -rw-r--r-- 1 99 99 1 Nov 30 2006 index.html -rw-r--r-- 1 99 99 5876 Feb 22 02:37 style-057c3df0-00011.css -rw-r--r-- 1 99 99 5877 Feb 22 02:37 style-95001864-00002.css -rw-r--r-- 1 99 99 5877 Feb 18 05:37 style-b1879ba7-00002.css -rw-r--r-- 1 99 99 5876 Feb 18 05:37 style-cc2f96c9-00011.css web2 correct username user/group permissions ls -alh /home/username/public_html/forums/scripts/site_css total 48K drwxrwxrwx 2 root root 4.0K Feb 22 02:37 ./ drwxr-xr-x 3 username username 4.0K Dec 2 14:51 ../ -rw-r--r-- 1 username username 1 Nov 30 2006 index.html -rw-r--r-- 1 username username 5.8K Feb 22 02:37 style-057c3df0-00011.css -rw-r--r-- 1 username username 5.8K Feb 22 02:37 style-95001864-00002.css -rw-r--r-- 1 username username 5.8K Feb 18 05:37 style-b1879ba7-00002.css -rw-r--r-- 1 username username 5.8K Feb 18 05:37 style-cc2f96c9-00011.css web2 numeric ids ls -n /home/username/public_html/forums/scripts/site_css total 48 drwxrwxrwx 2 503 500 4096 Feb 22 02:37 ./ drwxr-xr-x 3 503 500 4096 Dec 2 14:51 ../ -rw-r--r-- 1 503 500 1 Nov 30 2006 index.html -rw-r--r-- 1 503 500 5876 Feb 22 02:37 style-057c3df0-00011.css -rw-r--r-- 1 503 500 5877 Feb 22 02:37 style-95001864-00002.css -rw-r--r-- 1 503 500 5877 Feb 18 05:37 style-b1879ba7-00002.css -rw-r--r-- 1 503 500 5876 Feb 18 05:37 style-cc2f96c9-00011.css I checked db1 /nfsroot/site_css and user/group ownership was incorrect for newer files dated feb22 owned by root and not username ? on db1 originally incorrect root assigned user/group for new feb22 dated files ls -alh /nfsroot/site_css total 44K drwxrwxrwx 2 root root 4.0K Feb 22 02:37 . drwxr-xr-x 17 root root 4.0K Feb 17 12:06 .. -rw-r--r-- 1 root root 1 Nov 30 2006 index.html -rw-r--r-- 1 root root 5.8K Feb 22 02:37 style-057c3df0-00011.css -rw-r--r-- 1 root root 5.8K Feb 22 02:37 style-95001864-00002.css -rw------- 1 username nfs 5.8K Feb 18 05:37 style-b1879ba7-00002.css -rw------- 1 username nfs 5.8K Feb 18 05:37 style-cc2f96c9-00011.css Then I chmod them all on db1 and chown to set to right ownership on db1 so it looks like below on db1 once corrected the newer feb22 dated files ls -alh /nfsroot/site_css total 44K drwxrwxrwx 2 root root 4.0K Feb 22 02:37 . drwxr-xr-x 17 root root 4.0K Feb 17 12:06 .. -rw-r--r-- 1 username username 1 Nov 30 2006 index.html -rw-r--r-- 1 username username 5.8K Feb 22 02:37 style-057c3df0-00011.css -rw-r--r-- 1 username username 5.8K Feb 22 02:37 style-95001864-00002.css -rw-r--r-- 1 username username 5.8K Feb 18 05:37 style-b1879ba7-00002.css -rw-r--r-- 1 username username 5.8K Feb 18 05:37 style-cc2f96c9-00011.css but still web1 shows owned by nobody ? while web2 shows correct permissions ? web1 still with incorrect user/group of nobody not matching what web2 and db1 are set to ? ls -alh /home/username/public_html/forums/scripts/site_css total 48K drwxrwxrwx 2 nobody nobody 4.0K Feb 22 02:37 ./ drwxr-xr-x 3 username username 4.0K Feb 22 02:43 ../ -rw-r--r-- 1 nobody nobody 1 Nov 30 2006 index.html -rw-r--r-- 1 nobody nobody 5.8K Feb 22 02:37 style-057c3df0-00011.css -rw-r--r-- 1 nobody nobody 5.8K Feb 22 02:37 style-95001864-00002.css -rw-r--r-- 1 nobody nobody 5.8K Feb 18 05:37 style-b1879ba7-00002.css -rw-r--r-- 1 nobody nobody 5.8K Feb 18 05:37 style-cc2f96c9-00011.css Just so confusing so any help is very very much appreciated! thanks

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• email handling with inbox.py and nginx

  - by Matt Ball

  I have a Flask web application running behind gunicorn and Nginx. Nginx proxies any traffic to ivrhub.org to the correct flask app. I would very much like to use inbox.py to process some incoming email. Running inbox.py's example on my server and then sending an email to [email protected] does not work as I intended. The inbox.py server does not seem to receive anything but the email also does not bounce. I'm missing something conceptually -- is there a DNS setting I need to configure or something I need to adjust with Nginx?

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• IIS7.5 Windows Authentication missing providers menu item (ntlm)

  - by Alex

  Hello, I'm trying to enable NTLM authentication on a Windows Server 2008 R2 machine with IIS 7.5 for a specific file in my web root. I've been following these instructions http://docs.moodle.org/en/NTLM_authentication#IIS_Configuration In the IIS Manager I open the Authentication module, disable anonymous authentication and enable Windows Authentication however according to every post I can find on the matter I should have a 'providers' option appear but I don't. I've double checked in Server Manager that the 'Windows Authentication' security feature is enabled for IIS. Any help anyone can offer would be great, Thank you!

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• Trouble with setting up Mac SSH with TP-LINK router

  - by arxanas

  I have a Mac running OS X 10.7.2, and a TP-Link TL-WR740N (whose control panel looks like this). Remote Login is on in the Mac's System Preferences, and port 22 is set to forward on the router. I can access my Mac as a web server using the external IP on port 80, which I have set up through the same port-forwarding mechanism provided by the router, but when I try to ssh server@external-ip, it just times out after a long while. (The same thing happens when I try vnc.) I can, however, ssh and vnc successfully into that computer while I'm on the same network when using its internal IP. Since ssh appears to work and port forwarding appears to work, I can't figure out what's causing the problem. Does anyone have any idea what might cause this?

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• Why aren't connections released by the tomcat AJP connector

  - by Chris

  I have here a jboss with a web application. The tomcat is configured to use the ajp connector. Incoming connections are tunneled via an apache reverse proxy to the connector. Now I recognized that under heavy load the connector keeps a bunch of connections in "keep alive" mode for eternity and doesn't release them any more. With the normal HTTP connector the app did well, but now with the ajp connector we have regular app stallments. Can someone give me some advice where to start to look to resolve this issue? Why does the connector not release the connection again after idling for 300 secs? thanks, chris

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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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• Running multiple services on Port 443, Tunnel SSH over HTTPS

  - by lajuette

  Situation: I want to tunnel SSH sessions through HTTPS. I have a very restrictive firewall/proxy which only allows HTTP, FTP and HTTPS traffic. What works: Setting up a tunnel through the proxy to a remote linux box that has a sshd listening at port 443 The problem: I have to have a web server (lighty) running at port 443. HTTPS traffic to other ports is forbidden by the proxy. Ideas so far: Set up a virtual host and proxy all incoming requests to localhost: (e.g. 22) $HTTP["host"] == "tunnel.mylinux.box" { proxy.server = ( "" => (("host" => "127.0.0.1", "port" => 22)) ) } Unfortunately this won't work. Am i doing something wrong, or is there a reason, that this won't work?

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• WSUS 3.0 SP2 installation fails at "configuring database" step.

  - by flashkube

  Attempting to install WSUS 3.0 SP2 on a Windows Server 2003 Enterprise system. I'm asking the setup to create a new database on one of our existing SQL Server 2005 systems. When the setup gets to the "configuring database" step it stops and throws "There is a problem with this Windows Installer package. A program run as part of the setup did not finish as expected. Contact your support personnel or package vendor." The two logs it suggests I look at are below. I'm not seeing any errors that mean anything to me. Any direction you can give will be greatly appreciated. WSUSSetup.log: 2009-12-04 15:26:21 Success MWUSSetup Validating pre-requisites... 2009-12-04 15:26:22 Error MWUSSetup Failed to determine if an higher version of WSUS is installed. Assuming it is not... (Error 0x80070002: The system cannot find the file specified.) 2009-12-04 15:26:28 Success MWUSSetup No SQL instances found 2009-12-04 15:26:42 Success MWUSSetup Initializing installation details 2009-12-04 15:26:42 Success MWUSSetup Installing ASP.Net 2009-12-04 15:27:24 Success MWUSSetup ASP.Net is installed successfully 2009-12-04 15:27:24 Success MWUSSetup Installing WSUS... 2009-12-04 15:27:28 Success CustomActions.Dll Unable to get INSTALL_LANGUAGE property, calculating it... 2009-12-04 15:27:28 Success CustomActions.Dll Successfully set propery of WSUS admin groups' full names 2009-12-04 15:27:29 Success CustomActions.Dll .Net framework path: C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727 2009-12-04 15:27:33 Success CustomActions.Dll Creating user group: WSUS Reporters with Description: WSUS Administrators who can only run reports on the Windows Server Update Services server. 2009-12-04 15:27:33 Success CustomActions.Dll Creating WSUS Reporters user group 2009-12-04 15:27:33 Success CustomActions.Dll WSUS Reporters user group already exists 2009-12-04 15:27:33 Success CustomActions.Dll Successfully created WSUS Reporters user group 2009-12-04 15:27:33 Success CustomActions.Dll Creating user group: WSUS Administrators with Description: WSUS Administrators can administer the Windows Server Update Services server. 2009-12-04 15:27:33 Success CustomActions.Dll Creating WSUS Administrators user group 2009-12-04 15:27:33 Success CustomActions.Dll WSUS Administrators user group already exists 2009-12-04 15:27:33 Success CustomActions.Dll Successfully created WSUS Administrators user group 2009-12-04 15:27:33 Success CustomActions.Dll Successfully created WSUS user groups 2009-12-04 15:27:33 Success CustomActions.Dll Succesfully set binary SID property 2009-12-04 15:27:33 Success CustomActions.Dll Succesfully set binary SID property 2009-12-04 15:27:33 Success CustomActions.Dll Successfully set binary SID properties 2009-12-04 15:28:50 Error MWUSSetup InstallWsus: MWUS Installation Failed (Error 0x80070643: Fatal error during installation.) 2009-12-04 15:28:50 Error MWUSSetup CInstallDriver::PerformSetup: WSUS installation failed (Error 0x80070643: Fatal error during installation.) 2009-12-04 15:28:50 Error MWUSSetup CSetupDriver::LaunchSetup: Setup failed (Error 0x80070643: Fatal error during installation.) From the end of WSUSSetupmsi_091204_1527.log MSI (s) (58:7C) [15:28:49:860]: Note: 1: 1708 MSI (s) (58:7C) [15:28:49:860]: Product: Windows Server Update Services 3.0 SP2 -- Installation failed. MSI (s) (58:7C) [15:28:49:875]: Cleaning up uninstalled install packages, if any exist MSI (s) (58:7C) [15:28:49:875]: MainEngineThread is returning 1603 MSI (s) (58:78) [15:28:49:985]: Destroying RemoteAPI object. MSI (s) (58:90) [15:28:49:985]: Custom Action Manager thread ending. === Logging stopped: 12/4/2009 15:28:49 === MSI (c) (30:54) [15:28:50:016]: Decrementing counter to disable shutdown. If counter = 0, shutdown will be denied. Counter after decrement: -1 MSI (c) (30:54) [15:28:50:016]: MainEngineThread is returning 1603 === Verbose logging stopped: 12/4/2009 15:28:50 ===

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• User Permissions: Daemon and User

  - by Eddie Parker

  Hello: I often run into this issue on Linux, and I'd love to know the proper way of solving it. Say I have a daemon running. In my example, I'll use LigHTTPD, a webserver. Some software, like Wordpress, enjoys having read/write access to files for updating applications via a web interface, which I think is quite handy. At the same time, I enjoy being able to hack on my files using vim, using my local user account, 'eddie'. Herein lies the rub. Either I chown everything to lighttpd or eddie and a shared group between them both, and chmod it 660, or perpetually sudo to edit the damned things. The former isn't a bad solution, until I create a new file in which case I have to remember to chmod it appropriately, or create some hack like a cron job that chmods for me. Is there an easier way of doing this? Have I overlooked something? Cheers, -e-

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• Getting started with a new iMac...

  - by Moshe

  I'm on my first Apple computer, a shiny new 21.5" iMac. I am not unfamiliar with OS X as I have been using a borrowed MacBook for a few months. Considering that this is my machine, I am more comfortable "settling in". I would like to get recommendations for software to install on it, other possible uses and whatnot. I bought it primarily for iPhone development, but I make videos on my beast of a PC using Adobe Premiere CS3. What software is recommended for me to download for the aforementioned as well as photo editing, graphic design and web design? Bear in mind that this machine will NOT have steady internet access and that I'm looking for freeware only. THANKS!

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• MacBook can't use internet, but nslookup and ping both work

  - by Joel Coehoorn

  I have a user with a new high-end MacBook Pro that can't use the internet. He can connect to either our wired or wireless network and do things like browse file shares, but can get no further. When I brought the machine in for testing, I found that I could do an nslookup just fine, and I'm able to ping addresses returned by nslookup just fine. I'm even able to bring up web pages by entering the IP address into the address bar directly. However, when I try to ping the domain name rather than the IP address, it just sits there. So apparently I can either do name resolution or communicate with an address, but not both at the same time. Again, these symptoms occur on both the wired and wireless network. Other machines on our network, including a few other Macs, don't have this issue. Any ideas?

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• RSync over SSH - permission denied even though the user is in the root group

  - by Bastien974

  I have a need to copy files between servers through the web. I'm using RSYNC over ssh to do so. The problem is, I need to be able to transfer files, no matter where the files is. I created a user rsync and : usermod -G root -a rsync to give him the right to read/write anywhere on both servers. During the transfer, I see this error: rsync: mkstemp "/root/.myFile.RDr2HY" failed: Permission denied (13) I don't understand what's happening. edit: I just found out that the destination folder didn't have the write access for the root group. How would I give 100% access to this rsync user ? If I change its uid to 0, rsync stop working.

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• SSH tunnel over http proxy with blocked 443 (SSL)

  - by Evgeny Zhulenev

  Is it possible to create an SSH tunnel over http-proxy when https access is denied? I had such configuration in .ssh\config Host home User root Hostname *my-home-pc-with-ssh-access-allowed* Port 8090 ProxyCommand corkscrew db-isa-01 8080 %h %p ~/.ssh/.corkscrew-db-isa-auth IdentityFile ~/.ssh/id_rsa Where db-isa-01 is my corporate proxy server. Today the admins blocked all https access and allowed it only for few servers on the white list. I used this command to create a tunnel: ssh -D 7070 -o 'GatewayPorts yes' -A -q -g -t root@home and now it doesn't work. As I can understand, that's because our proxy denies all https connections Proxy could not open connnection to ***: Proxy Error ( The specified Secure Sockets Layer (SSL) port is not allowed. Forefront TMG is not configured to allow SSL requests from this port. Most Web browsers use port 443 for SSL requests. ) P.S. I use Windows 7, and corscskrew with cygwin, so Linux solutions not suitable for me.

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• Server 2008 Hard Faults

  - by claw

  Hey all, plase bear with me as I haven't looked at a server in a very long time. The problem I am having is with a Windows 2008 Standard FE Service Pack 2 Intel Xeon X3430 @ 2.40 2.39 GHZ 4 GB Memory 64 Bit There seems to be no problems other than the physical memory peaking at 91%, always with over 100 Hard Faults Per Second. To my understanding hard faults should be fairly rare on a machine with. Are there any logs I can show you? Or investigate myself. The general performance of the machine is ok, i can access SBS2008 and change settings fairly smoothly without hangs etc. However, we connect to the server and do quite a bit of SQL via an application. For a record to retrieve say 20 rows, it can take 20+ seconds. Thanks in advance, Jamie EDIT: What the server is used for: IIS ASP Web Service SQL 2008 List item Exchange unable to upload screenshots due to low reputation - why doesnt my SO work here :)

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• How do I change the URL handler for Apple Mail?

  - by Alex Reynolds

  When I highlight and right-click on text in an email message in Apple Mail 4.4 (1082), I can select "Search in Google". Despite having either Google Chrome or Mozilla Firefox set as my default web browser within Apple Safari 5.0.3 (6533.19.4) preferences, Apple Mail will open Safari, then open a new window in Safari with the search results. How do I change the default URL handler in Apple Mail, so that searches are opened in my default browser? Or is this a known bug? Thanks for your advice!

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• How can I make Amazon SES the default method of sending mail from my server?

  - by Jake

  I'd like to start using Amazon SES for all emails from our server. We have a few freelance designers with PHP hosting, some Django/Python web apps and also some system utilities which send emails. So I'd like to have PHP's mail function, the command line mail command and our python apps all be able to use it, preferably without having to set them all up in their own way. I think what I need is to have something like Postfix running on localhost and using SES for it's delivery but I don't know how to do that. Amazon's docs state I need to setup my mail transfer agent (MTA) so that it invokes the ses-send-email.pl script. I have the script but I'm not sure how to achieve this. Am I on the right track? If so, how can I configure Postfix to use that script?

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• How to change MySQL data directory?

  - by Jonathan Frank

  I want to place my databases in another directory, so I can store them in an ESB (elastic block storage, just a fancy name for a virtualized harddisk) together with my web-apps and other persistent data. I have tried to walk through a tutorial at http://crashmag.net/change-the-default-mysql-data-directory-with-selinux-enabled. Everything seems fine until I type this command: # semanage fcontext -a -t mysqld_db_t "/srv/mysql(/.*)?" Then the command fails and tells me that mysqld_db_t is an invalid SELinux context even if the default MySQL data directory is labelled with this context. I am running Fedora 15 on Virtualbox (behaves like an ordinary x86-compatible box) and Amazon EC2 (based on Xen) so the tutorial should be compatible. It is also worth to mention that turning off SELinux globally or just for the MySQL process is not an option, because such a solution will decrease the security of the system if a hacker gains access to the system via the MySQL server. I have never seen this problem before I changed to the Redhat/Fedora architecture, so it could be a distribution specific issue. Any help is highly appreciated

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• how do I tether my computer and blackberry?

  - by el chief

  I have Windows 7 Home Premium Blackberry Curve 9300 6.0 bundle 1478 (v6.0.0.380, platform 6.6.0.86) desktop software 6.0.0.380 I was able to connect with desktop software version 5 but 6 does not work. I am able to connect to the internet just fine with the device itself (ie can browse the web). How can I debug this? update: here's the error message: when i try to connect i get the message "failed to start mobile internet. the specified port is not open. please check your profile settings and make sure your radio is turned on. this service might also have been turned off by your wireless service provider or your administrator"

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• Software for monitoring internal software?

  - by Tyler Eaves

  Is there any good software for monitoring the health of a collection of related software? Requirements are as follows: Web-based, deployable on standard Linux/BSD software. Configurable to support a variety of processes, scheduled at various intervals. Some sort of dashboard interface, for monitoring status, viewing errors, etc. As an example, suppose we have a daily export that's scheduled to run at 6AM each morning. After the export completes, it would POST a status message, saying it had completed, passing in some sort of application key to identify the export. If that status message hadn't come in, by, say, 6:30AM, an e-mail might be sent, that application should go red on the dashboard, etc. Applications should also be able to post error/warning messages. Basically the goal is to be able to monitor all of our internal projects from one system, rather than a multitude of e-mails, log files, etc. I suspect that I'll probably have to end up writing this from scratch, but I just thought I'd ask.

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• Apache hanging with MaxClients is reached

  - by Ash White

  My Apache 2.2 (preform MPM) is hanging when MaxClients is reached, rather than queueing up requests and serving them when child processes become free. When this happens, the web server is totally unresponsive until it is manually restarted. The server stack is Ubuntu 8, MySQL 5, PHP 5. Hardware is Dual Xeons (2.8) with 2GB of RAM. It serves 30,000 - 50,000 pageviews per day. Static images, CSS, and JS are offloaded to a separate server and PHP is cached using eAccelerator. The HTML output of many pages is cached to the filesystem. Relevant Apache directives: KeepAlive On MaxKeepAliveRequests 50 KeepAliveTimeout 2 StartServers 2 MaxClients 150 MinSpareThreads 25 MaxSpareThreads 75 ThreadsPerChild 25 MaxRequestsPerChild 2000

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• PPTP network for server backend LAN?

  - by Sebastian Hoitz

  Here is our problem: We have several webservers, which should be reached from public. The database servers that store the data for the web apps on those webservers though shall not have a public IP. So, since I want to be able to connect to the SQL servers using ssh for example, and those servers need to talk with each other, I had this idea: Internet | ------------------ | | Webserver 1 Webserver 2 Database Server | | | -------------- vLAN -------------- | PPTP | Workstation (my PC) My idea was that I can connect to the vLAN using PPTP so that I have access to all servers in that LAN, but the database server remains unvisible to the public. Is this infrastructure a good idea?

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• NAT for Sprint Nexus S "Portable Wi-Fi hotspot"

  - by Jon Rodriguez

  I am on a 2010 Macbook Air connected to the web over wifi tethering on my Sprint Nexus S. I want to be able to host a few files using MAMP, but it seems that Sprint is running a NAT. When I query checkip.dyndns.org right now, it returns 68.27.228.75. However, trying to navigate to that IP fails (even though I do have MAMP's Apache running on port 80, as verified via loopback). When I whois 68.27.228.75, it appears to be a Sprint address, with NetName "SPRINTPCS" and OrgName "Sprint Nextel Corporation". So, is there some way I can circumvent Sprint's NAT to allow people to connect to my server that is running on a Nexus S Portable Wi-Fi hotspot?

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• Present a form to user on Windows login

  - by Keyslinger

  I have a public computer lab where users must give a few short details about themselves such as their age and objective before they use the computers. Currently this information is gathered by a lab attendant on paper. I would like for the user to be given a form in Windows at the beginning of his or her session on a computer in the lab. It should be impossible to use the computer without filling out and submitting this form. I am confident in my abilities as a web application developer and I would prefer to collect the data in some sort of browser-based form. How do I present it to the user and lock them out of Windows until it has been submitted?

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• Slow NFS transfer performance of small files

  - by Arie K

  I'm using Openfiler 2.3 on an HP ML370 G5, Smart Array P400, SAS disks combined using RAID 1+0. I set up an NFS share from ext3 partition using Openfiler's web based configuration, and I succeeded to mount the share from another host. Both host are connected using dedicated gigabit link. Simple benchmark using dd: $ dd if=/dev/zero of=outfile bs=1000 count=2000000 2000000+0 records in 2000000+0 records out 2000000000 bytes (2.0 GB) copied, 34.4737 s, 58.0 MB/s I see it can achieve moderate transfer speed (58.0 MB/s). But if I copy a directory containing many small files (.php and .jpg, around 1-4 kB per file) of total size ~300 MB, the cp process ends in about 10 minutes. Is NFS not suitable for small file transfer like above case? Or is there some parameters that must be adjusted?

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