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• Using Google's App Engine as CDN for static files

  - by Saif Bechan

  I am planning on moving my static files to Google's App Engine. I was wondering if this is a good idea to do. I have read that is it possible that Google will cache your files on multiple locations, which is a good thing in my opinion. The setup should also be quite easy in eclipse with the GAE plugins. But i still have my doubts on the performance of this. Is the setup of App Engine optimized for serving static content. Now I have Nginx server my static content, will App Engine perform the same way. Are there any other ups or downs using this method?

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• Virtual Hosting in RHEL5

  - by Kumar P

  We having RHEL5 linux server with few windows xp clients. We providing web development in php. Now my developers as for common local php server for keep their projects in same place. Currently proxy server and samba sharing are running in RHEL5 server. I installed httpd,php,MySQL in server. And i would like to configure virtual hosting too for LAN. What i want do for it ? In server we have 2 Ethernet ports, 1 for local connection and another one for Internet. Internet provided by ADSL provider. (192.168.0.0 series for ADSL modem connection and 10.1.1.0 for LAN connection. If i want to use virtual hosting , am i want to setup local DNS server ? My requirements are, setup php with mySQL server for Local clients with multiple hosting , without disturbing proxy and samba. Help me to solve it.

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• Mac OS X: pushing all traffic through a VMWare VM

  - by bj99

  I want to set up an Astaro (Sophos) UTM in a Virtual Machine. The Setup should be at the end the following: Cable Modem (one IP adress) | [Ethernet] Sophos UTM (running as VM [VMWare Fusion 5] on the MacMini) | [WIFI] Airport Express v2 (for sharing Local Network to wireless and wired clients) 1)| [WIFI] 2)| [Ethernet over Thunderbolt Ethernet Adapter]* Clients MacMini (Local File Server) *To have the Mini also protected behind the UTM So the setup process for the UTM works fine, but then the problems start: I just have one external IP (from my cable modem provider)== So if I put the VM in briged mode my Internet connection drops, because the MacMini also has its IP adress. If I put the VM to NAT mode the Mini itself is not protected by the UTM So: is there a way to hide the en0 interface(Ethernet) and the en1 interface (Wifi) from the MacMini, so that they not even appear in System Preferences Network section but are available to the VM? That way the Mini must connect to the en2 interface (Thunderbolt adapter) to make any Internet/LAN connection and I just use the given single IP from the Cable Modem. Thaks for any suggestions... Sebastian

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• Configure IIS 7 Reverse Proxy to connect to TeamCity Tomcat

  - by Cynicszm

  We have an IIS 7 webserver configured and would like to create a reverse proxy for a TeamCity installation using Tomcat on the same machine. The IIS server site is https://somesite and I would like the TeamCity to appear as https://somesite/teamcity redirecting to http://localhost:portnumber. I have installed the IIS URL Rewrite extension and the Application Request Routing to try and setup a reverse proxy but can't get it working. The closest answer I found is an old StackOverflow question: http://stackoverflow.com/questions/331755/how-do-i-setup-teamcity-for-public-access-over-https which unfortunately doesn't have any working example. I've searched a quite a bit but can't seem to find a relevant example. Any help is appreciated!

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• Pushing complete notifications to client

  - by ton.yeung

  So with cqrs, we accept that consistency is eventual. However, that doesn't mean that the user has to continually poll, or that eventual means an update has to take more then 500ms to sync. For the sake of UX, we want to at least give the illusion of consistency, or if not possible, be as transparent as possible. With that in mind, I have this setup: angularjs web client, consumes webapi restful services, sends commands to nservicebus command handlers, saves to neventstore, dispatches events to nservicebus event handlers, sends message to signalr hub, sends notifications to angularjs web client so with that setup, theoretically some initiates a request the server validates the request sends out the necessary commands In the mean time the client gets a 200 response updates the view: working on it gets message sometime later: done, here's the updated data Here's where things get interesting, each command could spawn multiple events. Not sure if this is a serious no, no, or not, but that's how it is currently. For example, a new customer spawns CustomerIDCreated, CustomerNameUpdated, CustomerAddressUpdated, etc... Which event handler needs to notify the client? Should all of them in a progress bar style update?

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• Desktop sharing options for Ubuntu 12.04 with Unity

  - by Stefan Buynov

  I would like to be able to access my office Ubuntu 12.04 machine from home, from a Mac Mini with Mac OSX. I have a VPN and I am able to access my office machine over SSH, so connectivity is not a problem. I browsed other questions, and it seems that there are several options: VNC XRDP FreeNX (haven't heard this one before) Are there any other? I have been using Remote Desktop on Windows before, and I actually like it. Not sure how well is XRDP implemented. I also used VNC several years back, and I didn't like its performance back then - not sure if things have changed since then. As I said above, the machine I want to access is running Ubuntu 12.04, with Unity. And I am using Unity by choice - I really like it and would like to continue using it :) The client computer is running Mac OSX (Snow Leopard). Based on your previous experience what is the best setup for this environment?

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• Squid - Selective reverse proxy and forward proxy

  - by Dean Smith

  I'd like to setup a squid instance to do selective reverse proxy for a configured list of URLs whilst acting as a normal forward proxy for everything else. We are building new infrastructure, parallel live as it where, and I want to have a proxy that people can use that will force selective traffic into the new platform whilst just acting as a forward proxy for anything else. This makes it very easy for people/systems to test the portions of the new platform we want without having to change too much, just use a proxy address. Is such a setup possible ?

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• Is it possible to backup an SQL Database hosted on an Azure VM, to our internal DPM2012?

  - by Florent Courtay

  I've got an SQL database on an azure VM (non domain) that i'd like to backup to our internal DPM 2012 server. I've installed the DPM agent on the Azure VM, setup DCOM to use only the ports 5000 to 5025 on both the VM and the DPM server, created the 135, 5000-5025, 5718 5719 endpoints on azure and on the VM's firewall. When trying to add this agent to the DPM server, I end up with an error, "Unable to contact the protection Agent on server .cloudapp.net" I know there is some sort of connection between them, as using a wrong password gives me an Invalid Credentials error. The error seems to be DCOM related : When trying to connect to the Azure VM from the DPM server using VBEMTest, i get an Error "0x800706ba The RPC server is unavailable", but access is deneid when using wrong credentials ) What am i missing ? Has someone been able to achieve this kind of setup ? Thanks for your help !

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• Unable to install Kaspersky anti virus 2011 on XP

  - by Guruprasad

  I recently tried installing Kaspersky antivirus 2011 on my XP (service pack 2) . Everytime I try to install through setup file, it initiates and then I get a pop up message saying Windows XP not compatible ( Sorry could no get the complete error message ) there is also options which come up saying "continue anyway" but it wont allow to click as the system gets hung . I also tried to skip from incompatible software by following the instructions on Kaspersky's website by creating a short cut to setup file and modifying the target field in it but still I get the same message. It also asks me to reboot before I install but it is still the same . Does this mean that I wont be able to install this antivirus software on my machine ? I also wrote to the Kaspersky support but seems they will take ages to reply.

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• How do I make zeitgeist work in Arch?

  - by wleoncio

  I've been trying to setup Zeitgeist on my Gnome-shell system for a couple of days, but I'm yet to get it to work. I've done everything I could think of, i.e. installing zeitgeist from [extra], as well as libqzeitgeist. I've also installed all Gnome extensions created by Seif (https://extensions.gnome.org/accounts/profile/seif), since they're the reason I'm installing the package in the first place. I've tried running "zeitgeist-daemon --replace" and then "gnome-shell --replace", but nothing seems to work. According to Der Harm's wiki (https://wiki.archlinux.org/index.php/User:Der_harm#Gnome_Zeitgeist), the Zeitgeist daemon doesn't need to be explicitly started, but even if it was, I don't know how to do it (since it's not in /etc/rc.d, I bet adding "zeitgeist" to my rc.conf wouldn't do any good either). I can't believe there isn't a very simple setup here, please help me see what I'm missing!

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• a load balancing scenario using HAProxy and keepalived shows no performance advantage

  - by chakoshi

  Hi, I am trying to setup a load balanced web server scenario, using two HAproxy load balancers and two debian web servers following this guide http://www.howtoforge.com/setting-up-a-high-availability-load-balancer-with-haproxy-keepalived-on-debian-lenny. the setup is working but the results of simple performance benchmarking is not what I expected. I tried apache benchmark tool to send lots of requests to servers (one time directly testing one of the web servers and the other time testing through the load balancer) using the command "ab -n 1000000 -c 500 http://IP/index.html", but the test results shows better performance for the single server without load balancer. can any one tell me if I'm going wrong on some thing?

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• VMWare Hypervisor vSphere 5 - VM static ip from VLAN NAT

  - by Ian Livingstone

  I have a VMWare vSphere 5 Hypervisor server that has a static ip address assigned to it by VLAN that is configured to perform NAT. The static IP is assigned to the bare metal server via the NIC's mac address. I want to setup a guest machine to also have a static ip address, how can I go about having this setup? I have assigned a IP for the guest's MAC Address but it doesn't seem to be working as when I ping the ip address it does not respond. The guest is running ubuntu 10.04 server edition. I am trying to assign it a static public ip address. Any help would be greatly appreciated.

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• Can't Move Windows to 2nd Monitor without Left Mouse and Cntl Key

  - by John C

  I have 2 very frustrating problems that maybe someone can help me with: I have 2 monitors (different sizes and resolutions) setup with the "Extended" monitor Win7 setup. My problem is this = I can not "move" a window from my Primary Monitor (larger and higher resolution on right side in front of me) to my Secondary 2nd monitor (smaller and lower resolution) with just selecting the title bar with the left mouse button and dragging it to the left. Windows 7 "snaps" it back to the left Primary Monitor when the window is physically in the 2nd window area as I'm holding the left mouse button. I can prevent this problem - by holding down the Cntl Key with the Left Mouse button, but this is extremely annoying to me. Also I typically "lose" focus if I try typing input on the 2nd monitor. Typing is erratic with regard to keystroke accuracy from my keyboard translated into input on the 2nd screen. No problem with typing input on the primary left monitor. I find this extremely annoying in Windows 7 and turning off the "snap" feature via the Control panel does NOT work for me. Win7 stubbornly refuses to move my selected window to my 2nd monitor without me "forcing" Win7 to do this with the Cntrl Key. Please tell me this is not a Win7 feature. Also on my system - Windows Key + Shift, Left arrow Key (pressed together) or the same combo with The Right arrow Key - don't do anything whatsoever. Widows Key with "+" however does maximize current window across both monitors, and I can "restore" it with Windows Key and "-" back to original monitor and size. I have tried various solutions including changing the resolutions of one or both of my monitors and sometimes "temporarily helps" but reverts back to the problem. Also if I swap the logical (not physical) layout so that I tell Win7 the monitors are setup in a reserved situation (Large monitor on the left, and small on the right) - this also sometimes helps for awhile - and is very strange and awkward to work with "backwards". But all of these solutions stop working. The only solution that consistently works for "moving" the screens is to hold the Cntrl Key down as I'm moving window with the left mouse selected on the title bar. Even that however, doesn't prevent the loss of typing focus for me on the 2nd monitor - while at the same time the typing on the 1st monitor is fine. Any help on moving my window screens from one monitor on my 2nd monitor without having to press the Cntrl key while holding down my left mouse button with be appreciated. Also any help on gaining typing "focus" into my 2nd screen with be helpful too. Thanks - John

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• UDF Partition reported full when it is not

  - by Capt.Nemo

  I was using these instructions to setup an external hard disk with udf. I have been able to setup a multi-partition system using those instructions, but I seem to have hit a wall, where the partition is reported as full while writing to the disk. Every other tool available to me reports it as free. Relevant lshw output Here's a screenshot showing the disk: Both the output of df and the file manager (caja) report the disk as free. Filesystem Size Used Avail Use% Mounted on /dev/sda9 9.0G 7.6G 910M 90% / udev 974M 12K 974M 1% /dev /dev/sda1 50G 47G 295M 100% /media/Data /dev/sda6 49G 41G 5.9G 88% /home /dev/sda2 155G 127G 29G 82% /media/Entertainment /dev/sda8 14G 13G 516M 96% /media/Stuff /dev/sdb2 120G 1.9G 112G 2% /media/3c887659-5676-4946-875b-b797be508ce7 /dev/sdb3 11G 2.6G 7.7G 25% /media/108b0a1d-fd1a-4f38-b1c6-4ad1a20e34a3 /dev/sdb1 802G 34G 768G 5% /media/disk I seem to have hit a wall near the 35GB mark. Despite being shown as 35gb/860gb used everywhere, the following happens on a write attempt: [2017][/media/Dory]$ echo D>>echo bash: echo: write error: No space left on device Writing byte by byte, the maximum I can take it to is 34719248K. The most weird part is that on mounting it Windows, Windows can write to the disk easily, and the writes are being read fine back in Ubuntu. However, the used-bytes remains at 34719248K in Ubuntu (It goes higher on Windows, however).

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• esx 4 - c7000 - cisco 3020

  - by gdavid

  I have 4 blades with esx 4 installed in a HP c7000 enclosure. They have 6 cisco 3020 for hp switches in the backend. The plan was to use 2 switches for iSCSI traffic and the other 4 for data traffic. I am having a problem trunking the switches to our existing environment. The documentation i keep finding online has commands/features that are not available on the 3020 switch. Does anyone have this setup anywhere? I am looking to do Virtual Switch Tagging (VST) so i can control the machines vlan via the port groups. The only time any configuration worked for us was when our network team placed the command switchport native vlan x this setup only allowed vlan x to pass traffic and only when the port group was in vlan 0. Ideas? thanks for any help. -GD

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• Server 2003 Functional Domain DFS Replication Problem (Files being moved to conflicted folder for no reason)

  - by Az

  We have 2 Windows 2003 servers configured with a DFS namespace and we are running into problems with the redirected profiles we have setup. Basically, one server is the FSMO master for all roles, and we have another DC that is the DFS namespace primary server. We have profile redirection setup using the \dfsnamespace\userprofile formula. The FSMO master DC locks up occasionally (don't ask :), and when it does, and we bring it back up... All of the user profiles hosted on the DFS namespace get overwritten when a user logs in. The current profile gets moved to the conflicting and deleted items folder. This strikes me as really odd considering the whole point of using DFS was to provide some redundancy in case one server went down. Can anyone help? Thanks in advance! -Nate

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• Easy way to update apache on a server cluster with shared NFS conf?

  - by Simon

  we have a server setup where a server cluster connected with a db/files/conf server shared by nfs serve our sites, behind an Elastic Load Balancer at Amazon EC2. The setup works correctly, but keeping it up to date is becoming like hell, because the apache/php conf that webservers use is shared through NFS. So, if we try to run an apt-get upgrade on a server on the cluster, it will abort it due to the webserver is not able to write back the configuration to the nfs server. Every time we want to update the machines, or install a package like php-curl, we need to create a new ami, so the changes will reflect on the new launched amis. Could it be another way of doing the things simpler? Thanks in advance!

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• Postfix, saslauthd, mysql, smtp authentication problems

  - by italiansoda

  Trying to get authentication on my mail server (ubuntu 10.04) running but am having trouble. I have a server with postfix for smtp setup, imap server with courier setup. My postfix authentication is using cyrus (I haven't tried dovecot really) saslauth. The user name and password is stored in a MySql database. Logging in with imap-ssl works on a remote client (thunderbird), and I can read my mail. I can't get the SMTP side working, and have focused the issue down to saslauth. Testing with testsaslauthd -u 'username' -p 'passowrd' -s smtp returns connect() : Permission denied the password in the database is encrypted and I guess this testsaslauthd will take a plain text password and encrypt it. Looking for someone to walk me through getting this working. Im new to the mail server, and have never got one fully working. Thanks. Ask me which log files I should look at/post, which tests to run, permissions to check.

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• Installing Wordpress - constant PHP/MySQL extension appears missing

  - by Driss Zouak

  I've got Win2003 w/IIS6, PHP 5 and MySQL installed. I can confirm PHP is installed correctly because I have a testMe.php that runs properly. When I run the Wordpress setup, I get informed that Your PHP installation appears to be missing the MySQL extension which is required by WordPress. But in my PHP.ini in the DYNAMIC EXTENSIONS section I have extension=php_mysql.dll extension=php_mysqli.dll I verified that mysql.dll and libmysql.dll are both in my PHP directory. I copied my libmysql.dll to the C:\Windows\System32 directory. When I try to run the initial setup for WordPress, I get this answer. I've Googled setting this up, and everything comes down to the above. I'm missing something, but none of the instructions that I've found online seem to cover whatever that is.

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• Howto boot directly into a VirtualBox image?

  - by mawimawi

  I have a running setup as following: Native OS: Windows 7 64bit, 3 Partitions: c: (System) d: (FAT32, here is my vdi file) e: (unformatted) VirtualBox: Fedora 14 running off the vdi file on drive d. Usually this setup is great for me, but sometimes I'd like to run Linux natively, and not inside VirtualBox. Is there a way to boot directly into the vdi file without the Windows overhead? E.g. using a USB stick with some modified Linux Kernel / GRUB that can mount the vdi file directly as "/"? Or copy the contents of my vdi file to the empty partition and somehow use this from VirtualBox (when booting into Windows) AND directly booting into Linux? Hope to get some hints or even howtos. EDIT: yes, sorry. not programming related. I posted the question to serverfault.com (hopefully that's the better site for my question.)

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• Howto boot directly into a VirtualBox image?

  - by mawimawi

  I have a running setup as following: Native OS: Windows 7 64bit, 3 Partitions: c: (System) d: (FAT32, here is my vdi file) e: (unformatted) VirtualBox: Fedora 14 running off the vdi file on drive d. Usually this setup is great for me, but sometimes I'd like to run Linux natively, and not inside VirtualBox. Is there a way to boot directly into the vdi file without the Windows overhead? E.g. using a USB stick with some modified Linux Kernel / GRUB that can mount the vdi file directly as "/"? Or copy the contents of my vdi file to the empty partition and somehow use this from VirtualBox (when booting into Windows) AND directly booting into Linux? Hope to get some hints or even howtos.

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• Unreasonably slow stunnel

  - by Kit Sunde

  I setup stunnel on OSX to tunnel traffic to my Django dev server because Facebook needs HTTPS these days but I noticed it's being absurdly slow. It seems like it can only handle a single connection at a time and even the connection is slow when I'm connecting to localhost. I've tried using some performance tips found online and so my config is setup as: pid= # foreground=yes cert=./cacert.pem key=./privkey.pem libwrap=no debug=0 socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 [https] accept=8443 connect=8000 Is there a way to get more performance or more suitable way of setting up HTTPS for my dev server?

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• What port should I use for my reverse proxy to Apache 2 from nginx?

  - by meder

  I have nginx setup as the defacto port 80. I want to setup django+mod_wsgi on Apache2. I'm worried if I leave Apache2 as 80 it will cause a conflict. Is it better to avoid the headache and change Apache to a different port? server { listen 80; server_name work.domain.org; access_log /www/work.domain.org/log/access.log; error_log /www/work.domain.org/log/error.log; location / { proxy_pass http://127.0.0.1:8080/; proxy_redirect off; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Magic-Header "secret"; client_max_body_size 10m; } }

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• Cheap machine with Xen to have more than one personal dev servers with RAID option?

  - by AJ

  I do not have a lot of money so when I need a personal dev servers I decided I will use Xen on one machine to run various OS's. Although, I really like Dell Zino (http://www.dell.com/us/en/home/desktops/inspiron-zino-hd/pd.aspx?refid=inspiron-zino-hd&cs=19&s=dhs) as a very economical and compact PC which can be scaled to 8GB of RAM, I do not know how to have a RAID setup, for the backup. Is there an economical way to add a RAID setup to Dell Zino or I would have to invest in a proper box for that? Thanks for your help in advance. **Also, please let me know if this question is not meant for this forum.

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• Password recovery of a Windows 2003 DNS server.

  - by KronoS

  I'm not going to lie, I feel like an idiot and would probably downvote this myself if I could, but here's my problem. I've just setup a Windows 2003 server as the DNS/AD for a replace of an old server. However, it appears that I don't know the password for the Administrator account. I entered the password and I setup the role, but apparently what I remember/wrote down and what I typed in are different. How do I recover a password? I can't log-on locally as it will only allow to log-on to the newly created domain.

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