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• Do I need to update some of my Debian Squeeze software?

  - by stan31337

  I have installed Debian 6, and LAMP stack from squeeze repository (default). After upgrading Apache 2.2.16 from unstable repository to 2.2.22, thanks to this post - how to upgrade already installed apache2 on debian (lenny) I'm thinking to upgrade all other software packages that I've previously installd from squeeze repository. Should I upgrade them to the ones from unstable repository? Should I upgrade all of them or just selected ones? Here's the list: * arno-iptables-firewall 1.9.2.k-4 >> 2.0.1.c-1 * bind9 1:9.7.3.dfsg-1~squeeze6 >> 1:9.8.1.dfsg.P1-4.2 * php-apc 3.1.3p1-2 >> 3.1.13-1 * fail2ban 0.8.4-3+squeeze1 >> 0.8.6-3 * exim4 4.72-6+squeeze2 >> 4.80-4 * altermime 0.3.10-4 >> 0.3.10-7 * rrdtool 1.4.3-1 >> 1.4.7-2 * vsftpd 2.3.2-3+squeeze2 >> 3.0.0-4 Also I would like to ask how to upgrade 5.3.3 5.3.16, unstable repository has 5.4.x versions only, I don't think I'm ready to move from 5.3 to 5.4 yet. Actually I'm a newbie in Linux, and after Windows experience I have a paranoidal idea to update software to the latest release. I'd be glad for any suggestions and recommendations! Thank you very much!

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• Any ideas why Ettercap filters aren't seeing packet data?

  - by Bryan

  I'm using an Ettercap filter to detect a query response coming back from a particular service on a remote machine. When I see a response from the service, I'm searching through the data in the packet to see if an offset is a specific value, and if so I'm changing the value at another offset. Trouble is, when I try this on a new virtual machine I built my Ettercap filter's no longer getting any data in the DATA.data variable available to it. if(ip.proto == TCP && tcp.src == 17867) { msg("Response seen!\n"); if(DATA.data + 2 == "\0x01") { msg("Flag detected!\n"); DATA.data + 5 = 0x09; } } The filter's getting applied to the traffic because "Response seen!" messages get printed out by Ettercap. However, "Flag detected!" messages do not. I think DATA.data is indeed empty because if I change my second "if" statement to check for DATA.data == "" then the "Flag detected!" message gets printed. Any ideas why this may be happening?! Also, if this is the wrong site to be asking questions like this, please let me know. I wasn't sure if it fit better here or somewhere like superuser or serverfault. By the way, this is a cross-post from StackOverflow... I should have posted on this forum instead I think. :)

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• What to do with old laptop screens?

  - by Lord Torgamus

  This question is inspired by another SU question I came across earlier today: What to do with old hard drives? It made me think about two long-dead laptops I have with perfectly good screens still inside. One is a Dell Inspiron 5100 and the other is an Averatec E1200, but responses need not be geared towards those particular models' screens. Rules, based heavily on the original question's: Objectives and suggestions to keep in mind when you post an answer : Should showcase your geekiness, be plain ol' fun, serve a social purpose or benefit the community. Your answer need not be limited to only one screen. For a really good answer, I'll go out and buy additional leftover screens. Your answer need not be limited to one project per screen. If additional accessories need be purchased, make sure they are common. Don't tell me to get a moon rock or something. The projects you suggested should serve a useful purpose; art is nice, but functional art is way better. Thanks in advance, folks. EDIT: Found another related question. Fun projects to do with an old 17" LCD monitor EDIT 2: I, for one, am enjoying the new outpouring of creativity here. Best fifty bucks... I mean, rep points... I ever spent. EDIT 3: That does it. At the end of the week, there was a tie for most votes between the accepted answer and the game platform answer. The game platform answer was cooler, but less reasonable as a project to actually do; in other words, it was more moon rocky. Unfortunately, I think fencepost had the best comment on the topic, which is that displays on their own have no good interface. Thanks for playing, everyone!

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• OS X Application icons missing after filesystem tampering

  - by dylan

  A while back I installed some Google software, I forget what it was, but it was something that attached itself to Google Chrome and was un-uninstallable short of uninstalling all of Chrome. It was a total pain in the a$$. Anyways, I was trying to put up a fight before going nuclear and just wiping Chrome, and during that fight, something went wrong (i.e., I didn't know what I was doing). I remember messing around with the Applications folder somehow. I don't remember what exactly I did, but it perhaps involved some interchanging between the /Applications and /User/Username/Applications folders? Definitely some tampering in those areas, I'm sure at least about that. Anyways, I've since updated and restarted my computer. Now, while all my apps work fine, many of them have blank icons - not on the Dock, those icons are fine, but in Spotlight search results, etc. Currently, my /Applications folder contains only OS X-cooked-in applications. My ~/Applications folder contains cooked in apps AND post-OS/third-party apps. There hasn't been any functionality deficit so far, but I don't like working on a machine where something isn't how it should be. I know my information was vague, but does anyone know what went wrong / how to fix it? OS X Mavericks 10.9.3

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• Localhost stop resolving/serving local site after a few clicks IIS 7.5

  - by Jo-Pierre

  previously I have searched tried to find the answer from a previous question, however Im not sure it was resolved. I could comment on the question to find more, so decided to post a new question. Previous question found (http://serverfault.com/questions/314333/localhost-stop-resolving-after-a-few-minutes-iis-7-5) So I set up a new website on Windows 7 IIS 7.5 ... I give it a host header and in the hosts file I add the entry for 127.0.0.1 and browse the site. After about the second or third time of trying to click around on the local site, it starts hanging ... just seems to be looking like its trying to load, but just eventually comes back in Firefox with "The connection was reset" (takes about 30-50 secs before this happens). I then used a program like CurrPorts, to view the ports that are listening, and for the initial request it all seems good. Now after the site is hanging, I dont see the hit coming through anymore. Its as if the browser loses touch with IIS or something. If I open a different browser, works fine for about 2 clicks or so, then same problem. Anyone know what could be causing this? Or how to resolve?

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• What are the possible problems, when wget returns code 500 but same request works in normal browsers?

  - by markus

  What should I be looking for, when wget returns 500 but the same URL works fine in my web browser? I don't see any access_log entries that seem to be related to the error. DEBUG output created by Wget 1.14 on linux-gnu. <SSL negotiation info stripped out> ---request begin--- GET /survey/de/tools/clear-caches/password/<some-token> HTTP/1.1 User-Agent: Wget/1.14 (linux-gnu) Accept: */* Host: testing.thesurveylab.net Connection: Keep-Alive ---request end--- HTTP request sent, awaiting response... ---response begin--- HTTP/1.0 500 Internal Server Error Date: Wed, 12 Dec 2012 14:53:07 GMT Server: Apache/2.2.3 (CentOS) Set-Cookie: blueprint2-staging=8jnbmkqapl30hjkgo0u6956pd1; path=/ Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Pragma: no-cache Strict-Transport-Security: max-age=8640000;includeSubdomains X-UA-Compatible: IE=Edge,chrome=1 Content-Length: 5 Connection: close Content-Type: text/html; charset=UTF-8 ---response end--- 500 Internal Server Error Stored cookie testing.thesurveylab.net -1 (ANY) / <session> <insecure> [expiry none] blueprint2-staging 8jnbmkqapl30hjkgo0u6956pd1 Closed 3/SSL 0x0000000001f33430 2012-12-12 15:53:07 ERROR 500: Internal Server Error.

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• How to show what will be updated next pull?

  - by ???

  In SVN, doing svn update will show a list of full paths with a status prefix: $ svn update M foo/bar U another/bar Revision 123 I need to get this update list to do some post-process work. After I have transferred the SVN repository to Git, I can't find a way to get the update list: $ git pull Updating 9607ca4..61584c3 Fast-forward .gitignore | 1 + uni/.gitignore | 1 + uni/package/cooldeb/.gitignore | 1 + uni/package/cooldeb/Makefile.am | 2 +- uni/package/cooldeb/VERSION.av | 10 +- uni/package/cooldeb/cideb | 10 +- uni/package/cooldeb/cooldeb.sh | 2 +- uni/package/cooldeb/newdeb | 53 +++- ...update-and-deb-redist => update-and-deb-redist} | 5 +- uni/utils/2tree/{list2tree => 2tree} | 12 +- uni/utils/2tree/ChangeLog | 4 +- uni/utils/2tree/Makefile.am | 2 +- I can translate the Git pull status list to SVN's format: M .gitignore M uni/.gitignore M uni/package/cooldeb/.gitignore M uni/package/cooldeb/Makefile.am M uni/package/cooldeb/VERSION.av M uni/package/cooldeb/cideb M uni/package/cooldeb/cooldeb.sh M uni/package/cooldeb/newdeb M ...update-and-deb-redist => update-and-deb-redist} M uni/utils/2tree/{list2tree => 2tree} M uni/utils/2tree/ChangeLog M uni/utils/2tree/Makefile.am However, some entries having long path names are abbreviated, such as uni/package/cooldeb/update-and-deb-redist is abbreviated to ...update-and-deb-redist. I deem I can do with Git directly, maybe I can configure git pull's output in special format. Any idea?

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• Intel Motherboard Lightning Victim Dies Hard

  - by Stetson RDT

  Today, I have a more hardware-related question. I have an Intel board, and I really do not know which board it is, I built the machine for a relative, but he forgot to keep the documentation. Long story short, the computer was disconnected during a lightning storm, but a lightning strike travelled in via the ethernet cable (It was directly connected to a power brick commonly seen on those long distance ISP Wireless transmitters), and the motherboard was shocked. I am attempting to get this PC going. The problem is as follows: The computer will randomly reboot, just in the middle of anything as it pleases. May load to EFI (or whatever BIOS is nowadays), may load to bootloader, may even get to the OS. But before 5 minutes is up, the system will always die. Out of curiosity, I plugged my voltmeter in to a molex connector. On the 5V side, it gets a good, consistant +5.13V. On the 12V side, it fluctuates, as follows: Upon immediate startup, it soars to 12.11-12.13V. It will now do one of two things: it will immediately jump down to 12.04-12.05V, or hover for about a minute at 12.11-12.13, then jump down. It seems the longer the voltage stays at 12.11-12.13, the shorter the machine will stay running. Also, post codes, whenever the machine locks up, but does not die hard, seem to be between "AA" and "AC". Does this make any sense to anybody? Do you all think this motherboard is salvageable? It was an expensive bugger, and I'd prefer to not replace it.

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• Hibernation fails; The system cannot find the file specified

  - by GMMan

  Recently I installed Ubuntu 12.04.1 LTS on my Lenovo Y480. Hibernation was working properly after the Ubuntu install, but I was making sure all of the operating systems on my system worked, including OneKey Recovery (recovery partition). It is of note that I installed Windows 7 from scratch with a disk image I downloaded off of my university's DreamSpark program, and further to that I had to image the partition with Paragon Backup & Recovery, repartition to convert the Windows partition to extended, install Ubuntu, and then restore the image. During that process I also used the Windows disc to edit the BCD as to reuse the existing entry for the restored partition. I also used the automated "repair your computer" option. With verification, I noticed that the "repair your computer" option actually wrote to the wrong BCD (the recovery partition), and I mounted the partition and restored the original BCD (from a copy I made earlier), and rebooted. At this point my GRUB broke, and I was able to restore it. At this point hibernation broke. I tried powercfg /h off and powercfg /h on, rebooted, and nothing. Also tried increasing the hibernation file size as directed on this post, but it still doesn't work. Executing shutdown /h yields The system cannot find the file specified.(2). What file? It seems that mounting the system partition sometimes works, but I don't want to keep it mounted in case it gets written to accidentally. How do I permanently fix this?

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• Nginx not working properly on subdomains

  - by javipas

  I've been trying to setup a Sugar CRM instance. I've got a domain that has its main site on a server (www.domain.com) and I've created a subdomain (sugar.domain.com), but I wnat this subdomain to be hosted on another server. This second server has nginx installed, and there's a working WordPress blog there on a virtualhost, so I would need to setup a second site. To do this I've created the directory structure, and I've created a /etc/nginx/sites-enabled/sugar.domain.com configuration file that has the following: * server { listen 80; server_name sugar.domain.com *.domain.com; access_log /var/www/sugar/log/access.log; error_log /var/www/sugar/log/error.log info; location / { root /var/www/sugar; index index.php; } location ~ .php$ { fastcgi_split_path_info ^(.+\.php)(.*)$; fastcgi_pass backend; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME /var/www/sugar/$fastcgi_script_name; include fastcgi_params; fastcgi_param QUERY_STRING $query_string; fastcgi_param REQUEST_METHOD $request_method; fastcgi_param CONTENT_TYPE $content_type; fastcgi_param CONTENT_LENGTH $content_length; fastcgi_intercept_errors on; fastcgi_ignore_client_abort on; fastcgi_read_timeout 180; } ## Disable viewing .htaccess & .htpassword location ~ /\.ht { deny all; } } upstream backend { server 127.0.0.1:9000; } As far as I know, I need the *.domain.com parameter on the "server_name" flag, but something is crashing here: I get either a 403 Forbidden error, or I get PHP code (I can read the PHP file code in the browser, like normal text) that somehow is not executed. I've tried setting permissions to 755 inside the /var/www/sugar/ directory, and I've also set up the owner:group with a chown -R www-data:www-data /var/www/sugar/ The thing is, I don't now if my mistake is in the nginx site configuration, in my folder permissions, or in other place :( Could it be because of the main domain (www.domain.com) is hosted on other server? Do they have to be together necessarily?

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• Linux on MacBook Air

  - by enduser

  I'm thinking of getting a MacBook Air. The answers to this post will help me make my decision. My questions and my understanding of current solutions are: How difficult is it to install a Linux-based OS (like Fedora or Ubuntu)? I've heard a little about rEFIt, but am not sure what to make of it. Is it completely necessary? Do I still need it if I don't plan to dual boot with Mac OS X? Also a dual-boot isn't necessary, I'd just like to run Fedora/Ubuntu by itself, but I'm curious to know if a dual boot is simple. Does everything 'just work'? In my current laptop I need to add a wireless driver (Broadcom card). I've heard Macs use Broadcom wireless cards. Will this be an issue? How about graphics/touchpad (& multitouch)/sound? I'm aware there are tutorials out there on how to install some older version of some os on your Mac, but my questions are a bit more general: Will it be easy to use (install and configure drivers for) recent Linux distributions with a new MacBook Air? Note: I don't mind extra configuration, but would like to know where it'll be necessary, because if it's too much of a hassle I'll look at other hardware.

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• Recommendation for a simple no-frills Windows PDF printer driver?

  - by Scott Bussinger

  I'm looking for an extremely simple Windows PDF printer driver that I can recommend to clients. Ideally it would have these characteristics: When you print something, it should just create it as a temporary file and then display it in their default PDF viewer with no prompting. If they want to save it, they can save it manually from inside the viewer. This workflow should be with no special post-install configuration. Installation should be very simple. A double click the installation program and click "Finish" sort of thing. No complicated multi-step installation, no asking questions your grandmother wouldn't know the answer to (preferably no questions at all), no extra crap being installed. An option for a completely silent installation would be nice, but not necessary. Ideally it would be free to simplify their installing on a small network, but low cost is an option. I've tried a quite a few but none really fit the bill. Some can achieve the first goal but only after careful configuration, some try to install extra toolbars, some have other installation complexities that would make it hard for extremely novice users to succeed. Any suggestions? Thanks!

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• Terminal Server CPU usage at 100%

  - by Light1c3

  I'm running a terminal server with around 50-60 users,and every so often the server will go from 40% usage to 100%. I took a closer look an it seems every time this happens, a different user or two seem to be caught in a loop and end up using < 30% where the rest of the users only use a maximum of 5%. The company behind the software we use clame it's due to the servers inadequate hardware (It's a VM system running on a dual - quad core setup) which to me sounds like BS! I'm fairly new to this level of IT so if I misspoke I apologize. I have no way to prove it but I believe adding more raw hardware power wont do me any good as this to me seems like a bug in their software, and it will suck up as much ( or little) CPU as it's given. The VM in question has 4 vCPU cores and 12 GB RAM available, and is running Windows Server 2008, 64-bit Thanks in advance for your help! Note: I have the same question posted on SO, but was pointed in this direction so just in case, here is a link to the post http://stackoverflow.com/questions/17276602/termserver-cpu-at-100

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• Strange boot problems on 6 month old setup

  - by Balefire

  I've already exhausted my knowledge on this one, so forgive me if this post is a bit long. I built a computer 6 months ago for my wife and it worked fine until last week. Then it randomly shut down and would lock up while trying to boot on the boot screen. I cleared cmos and it allowed me to do startup recovery, but it "failed to fix the issue" so I reinstalled windows on the HD (moving the old install to windows_old). It worked, so I started installing drivers again, but then when I restarted to finalize installations it locked up again. This time, I took the hard drive and hooked it up to my computer, backed up all her files, and then formatted the hard drive before reinstalling it. (again had to clear cmos to let me boot from disk) It installed windows, I installed drivers, and it worked for a few hours but then died during startup again. So, then I got a new HD, cleared cmos, and installed clean again, with the same result as the time before, it worked for a few hours, installed windows updates, then crashed on the 3rd or 4th time turning it on. I decided next to try reinstalling and then going online to see if there were any updates for the BIOS or drivers on the Motherboard, but now I can't get it to even bring up the boot menu, so now I'm just left wondering was it the motherboard, or is it the CPU, or the RAM? The problem was strangely intermittent so I thought it had to be a software issue, since a hardware issue would ALWAYS fail to boot, right? But now it seems to be a hardware issue, because it's not bringing up anything. Any suggestions? System: Windows 7 64-bit 970A-DS3 Gigabyte Motherboard AMD Phenom II X4 955 Deneb 3.2GHz Quad core Proc GeForce GT 430 (Fermi) 1GB Video Card 500W PSU 2 x G.SKILL Ripjaws X Series 4GB 240-Pin DDR3 1600 RAM

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• 2012 R2 services will not start after promotion to Domain Controller

  - by Cybersylum

  Having a peculiar issue promoting a Windows 2012 R2 server in a domain at 2003 domain/forest functional level. Built a new 2012 R2 server, added the following software (labtech, appassure, eset A/V, & Teamviewer). It activated and appeared to be working fine. I added the Active Directory Domain Services role, and completed the configuration (Domain/Forest Prep, and DC promotion). All appeared to go well. I rebooted the server, and that's where the peculiar stuff began. I noticed the server indicated it needed activated again; but would not accept the key. I verified the key was good. That's when I noticed the Software Protection service (as well as many other core services - Base Filtering engine, DHCP client, firewall, etc) would not start. The error message for all of them was "Access Denied". I called MS, and they wanted to troubleshoot at a service level. Their fix was to use procmon and identify the resource that needed permissions (registry key, file or folder) and add "everyone" with full control). That got the services to start; but the problem re-appeared after a reboot. Thinking the issue might have been with the anti-virus package during the promotion process, I rebuilt the DCs from scratch and removed the metadata from AD (as I could not demote the machines "rpc server unavailble"). I tried to promote the newly built machines again. The only changes to the brand new machines being critical updates. Again the promotion appeared to work fine; but upon reboot (and a long wait to allow replication to occur) similar problems began to re-appear. I have verified that the schema updates are correct (schema version is 69 - for Windows 2012 R2). I am not finding much about this issue through my own searches, so I thought I would post this to see if anyone else has seen anything similar...

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• How to flip video feed that's presented upside down?

  - by Zuul

  Skype an other applications running under windows 7 Ultimate are presenting the video captured from the laptop built-in webcam upside down. I've tried many solution that I was able to find regarding issues like this, but to no avail. Some of the most relevant are discussed here: From Skype Support Network, the thread why is my video image of myself upside-down??? From ASUSTek Forums, the thread Built-in camera upside down Both present several potential solutions to this issue, but I've been unable to fix it for the laptop ASUS U6S. What I've already tried: Changing Drivers The driver that works must be the one from Windows, all others available from ASUS drivers either don't install or install but the webcam doesn't provide any video feed. This disallows all options that concern using an older driver or editing the .inf file as to manually adjust the settings. ASUS does not provide drivers for Windows 7, so I've used drivers from Windows Vista 32 Bit. Using the application manycam This application actually solves the issue (temporarily), but creates new ones: If I use the application to flip the video feed, Skype video call cease to work. This application doesn't save the settings, at least I wasn't able to find any way to save the settings I've used to flip the video feed. A computer restart brings all back to how it was, video feed upside down and if the application is still installed, Skype continues to fail on video calls. Regedit I've searched thru Windows Registry Editor as to find any reference to the webcam settings, hopping to find a key with the Flip parameter, since it's up to the driver to flip the image (by what I could ascertain from this problem). Couldn't find any reference to such settings, either they actually don't exist within the Windows Registry or they use some weird name that I could think off. System Configuration I was able to access the webcam system settings from the Windows Device Manager, but the tab that actually has the Image Rotation setting is always disabled. The same goes for the settings available from the Skype webcam options (that essentially is presenting the same settings as Windows Device Manager, just within a custom Skype pop-up). Question: How can I flip the video feed from the laptop's built-in webcam, as to properly see and broadcast the video?

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• What cause high CPU usage on the server during file upload

  - by bosiang

  When I try to upload a huge file size (approx 2GB), the server cpu usage goes really high. What should I do to fix this? I just use standard html form and php, for file upload. I'm sorry if I post on the wrong forum. Please point me to the right direction here is the result of "top" command during uploading 4 files (18mb, 38mb, 60mb, 33mb) 1904 apache 20 0 33504 5740 1952 R 28.3 0.2 0:02.19 httpd 1905 apache 20 0 33504 5740 1952 R 28.3 0.2 0:01.99 httpd 1903 apache 20 0 33232 6968 3060 R 28.0 0.2 0:01.98 httpd 1910 apache 20 0 33240 6020 2248 S 11.5 0.2 0:02.85 httpd 2133 root 20 0 2656 1124 896 R 1.6 0.0 0:00.71 top 1 root 20 0 2864 1404 1188 S 0.0 0.0 0:03.99 init the code for chunking, although eventhough I don't use this code (just simple file upload), it still cause that high cpu usage function sendRequest() { //clean the screen //bars.innerHTML = ''; var file = document.getElementById('fileToUpload'); for(var i = 0; i < file.files.length; i++) { var blob = file.files[i]; var originalFileName = blob.name; var filePart = 0 const BYTES_PER_CHUNK = 100 * 1024 * 1024; // 10MB chunk sizes. var realFileSize = blob.size; var start = 0; var end = BYTES_PER_CHUNK; totalChunks = Math.ceil(realFileSize / BYTES_PER_CHUNK); alert(realFileSize); while( start < realFileSize ) { if (blob.webkitSlice) { //for Google Chrome var chunk = blob.webkitSlice(start, end); } else if (blob.mozSlice) { //for Mozilla Firefox var chunk = blob.mozSlice(start, end); } uploadFile(chunk, originalFileName, filePart, totalChunks, i); filePart++; start = end; end = start + BYTES_PER_CHUNK; } } }

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• Allowing Sharepoint to relay email through Exchange

  - by dunxd

  I have written a Sharepoint 2007 web part that sends a field from a form to a specified email address. I have got the form working as I require, but at present it can only send to internal email addresses. Sharepoint's email functions use SMTP to send to our Exchange 2003 server, but because our Exchange server is configured to prevent relaying, if the To: address is not at a local domain, it won't deliver the mail. I don't want to open up our Exchange server to be a completely open relay. What I want is to allow my Sharepoint servers to send mail to addresses outside our domain. The following seem possible: Allow all mail sent from one of the Sharepoint servers to be relayed Allow all mail from a web application pool account to be relayed (I am not sure that the application pool authenticates to the SMTP server though) A combination of the two Can anyone advise on the best way of doing this? Is setting up a dedicated SMTP server on the Exchange server (not a separate physical server) the right way of going about this? EDIT: Note this is for Exchange 2003. There is a post on setting this up in Exchange 2007 which appears to have recognised the frequent requirement to do what I need. It doesn't give much detail on 2003 though. Can anyone expand?

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• Can next hop address be same as destination address?

  - by Raj

  Like if host address is 100.0.0.1 and next hop address is 100.0.0.2 and destination ip address is also 100.0.0.2 Is this a valid use case? Any real life usage? <dest ip> <next hop> ip route 100.0.0.2 255.255.255.255 100.0.0.2 weight 1 next-hop-vrf GlobalRouter Above is the command on a router inside a VRF. 100.0.0.2 is pingable from host. 100.0.0.1 & 100.0.0.2 are an ip address assigned to a VLAN on host & destination respectively. On a linux box, Such configuration is valid. [root]# netstat -r -n Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 55.55.55.55 55.55.55.55 255.255.255.255 UGH 0 0 0 eth0 [root]# ip route show 55.55.55.55 via 55.55.55.55 dev eth0 As per my understanding, If a destination IP is reachable (i.e in the same subnet of host IP) we dont need a next hop. I came across one application for using next hop for destination IP in same subnet (i.e for VPN) See this: Will packets send to the same subnet go through routers? If next hop != destination IP but they are in same subnet as that of host, is a valid scenario for VPN, then i am wondering what are the applications of next_hop==dest_ip & subnet same as host? This is my first post in Super User. Extremely happy with the quick and warm response.

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• Nginx not working properly on subdomains [SOLVED]

  - by javipas

  I've been trying to setup a Sugar CRM instance. I've got a domain that has its main site on a server (www.domain.com) and I've created a subdomain (sugar.domain.com), but I wnat this subdomain to be hosted on another server. This second server has nginx installed, and there's a working WordPress blog there on a virtualhost, so I would need to setup a second site. To do this I've created the directory structure, and I've created a /etc/nginx/sites-enabled/sugar.domain.com configuration file that has the following: * server { listen 80; server_name sugar.domain.com *.domain.com; access_log /var/www/sugar/log/access.log; error_log /var/www/sugar/log/error.log info; location / { root /var/www/sugar; index index.php; } location ~ .php$ { fastcgi_split_path_info ^(.+\.php)(.*)$; fastcgi_pass backend; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME /var/www/sugar/$fastcgi_script_name; include fastcgi_params; fastcgi_param QUERY_STRING $query_string; fastcgi_param REQUEST_METHOD $request_method; fastcgi_param CONTENT_TYPE $content_type; fastcgi_param CONTENT_LENGTH $content_length; fastcgi_intercept_errors on; fastcgi_ignore_client_abort on; fastcgi_read_timeout 180; } ## Disable viewing .htaccess & .htpassword location ~ /\.ht { deny all; } } upstream backend { server 127.0.0.1:9000; } As far as I know, I need the *.domain.com parameter on the "server_name" flag, but something is crashing here: I get either a 403 Forbidden error, or I get PHP code (I can read the PHP file code in the browser, like normal text) that somehow is not executed. I've tried setting permissions to 755 inside the /var/www/sugar/ directory, and I've also set up the owner:group with a chown -R www-data:www-data /var/www/sugar/ The thing is, I don't now if my mistake is in the nginx site configuration, in my folder permissions, or in other place :( Could it be because of the main domain (www.domain.com) is hosted on other server? Do they have to be together necessarily?

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• Ubuntu 12.04 can't boot after installing with software RAID 1

  - by Bill

  I've been trying to install Ubuntu with software RAID on my server and there is obviously something that I don't understand about the process. This is the guide that I followed: https://help.ubuntu.com/11.04/serverguide/advanced-installation.html I have two identical 1 TB disks in my server. I went through the initial install process and manually set up my partitions. On each disk I set up: (1) 100 MB partition for EFI boot (I didn't originally have this but added it based on a forum post I found after my original install failed to boot, I ended up with EFIboot since that was what the 'guided partitioning' decided to do) (1) 970 MB partition for / (1) 30 MB partition for swap I then created new RAID 1 disks combining the two partitions, one from each disk, such that each partition is mirrored. I then configured their usage as stated above. After saving the configuration I said yes to boot in a degraded state. The rest of the setup went normally, no errors of any kind. I saw GRUB being installed and again no errors. However, after rebooting the server I get the dreaded 'Insert boot media' and nothing happens. I loaded up the recovery disk and the mdadm configuration looks correct. md0 is my EFIBoot partition md1 is my \ partition using ext4 md2 is my swap partition Running file -s /dev/md0 doesn't indicate that GRUB is there and so I attempted to reinstall GRUB using the recovery disk. I selected the md0 disk and it appeared to install just fine. Running file -s /dev/md1 shows the error needs journal recovery, I'm not sure if that's related or not or how to fix that. Rebooting gives me the same problem, no boot media found. I've searched around the internet but can't figure out what to do next or more importantly how to troubleshoot what exactly is going wrong. Thanks!

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• can't install anything anymore with apt-get

  - by Aymane Shuichi

  Welcome this is the log I have when trying to install anything (php5-fpm after removing it) apt-get install php5-fpm Reading package lists... Done Building dependency tree Reading state information... Done php5-fpm is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 1 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Do you want to continue [Y/n]? y Setting up php5-fpm (5.4.4-14+deb7u10) ... insserv: warning: script 'S55IptabLes' missing LSB tags and overrides insserv: warning: script 'S55IptabLex' missing LSB tags and overrides insserv: There is a loop between service IptabLes and mountnfs if started insserv: loop involving service mountnfs at depth 8 insserv: loop involving service networking at depth 7 insserv: loop involving service mountnfs-bootclean at depth 10 insserv: There is a loop between service rc.local and mountall if started insserv: loop involving service mountall at depth 6 insserv: loop involving service checkfs at depth 5 insserv: loop involving service kbd at depth 11 insserv: There is a loop between service rc.local and mountall-bootclean if started insserv: loop involving service mountall-bootclean at depth 7 insserv: loop involving service urandom at depth 9 insserv: There is a loop between service IptabLes and mountdevsubfs if started insserv: loop involving service mountdevsubfs at depth 2 insserv: loop involving service udev at depth 1 insserv: There is a loop at service rc.local if started insserv: There is a loop at service IptabLes if started insserv: Starting IptabLes depends on rc.local and therefore on system facility `$all' which can not be true! (x99 times repeated ) insserv: Max recursions depth 99 reached insserv: loop involving service postfix at depth 2 insserv: There is a loop between service IptabLes and udev if started insserv: loop involving service mountkernfs at depth 1 insserv: loop involving service IptabLes at depth 1 Now here is the error i get insserv: exiting now without changing boot order! update-rc.d: error: insserv rejected the script header dpkg: error processing php5-fpm (--configure): subprocess installed post-installation script returned error exit status 1 Errors were encountered while processing: php5-fpm E: Sub-process /usr/bin/dpkg returned an error code (1) The biggest operation I held before this was updating nginx from 1.2 to 1.6 and it was thanks to this site : here is the link : How to upgrade nginx from 1.2 to 1.6 on debian 7 Please help !

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• How do people type different languages into computer?

  - by pecker

  Hello, We have English keyboards. I never saw any other keyboard in my life. I've been wondering for a long time. How do people in Korea, China, Russia, Muslim countries and some European countries where English is less known. Do they have keyboards in their native language? I mean are the keyboard directly manufactured in their native language. Or do they use some kind of keyboard mapping softwares to acheive the task. I've been searching in Google images to have a glance at their computers but didn't find any real key pads for computers/smartphones. If they have some non-English keyboard. Then how would they type web URLs? URLs possible in other languages also? If they have to type English URLs then it also means that they need to know English. I've seen in some movies that they have all their softwares, windows have text in their native language. How do they have some different language? I feel lost & confused. If you have any screenshots / pics of such non-english computer please post. I want to see one.

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• New to server admin, Diagnosing Memory and CPU issues on DV

  - by G Thompson

  Sorry for my ignorance and lack of knowledge. I'm a PHP/Front-end developer just now venturing into very minor server management/diagnostics. I have a Media Temple DV account. I have 2 sites that run a PHP script through a subscription service to an API. Basically API hits site with said script. Script runs, gathers data from api, saves data to SQL database. I noticed that these sites seemed to causing memory overages on my server (not sure why). So I temporarily disabled them. The memory overage alerts stopped but my CPU still sits really high, like at 115% and above. I'm trying to diagnos this with tutorials and resources but just can't seem to find a solution. I'll attach screenshots(screenshots are without the PHP scripts I assume are responsible for the memory issues) I'm assuming are important to the diagnosis, but if anyone can point me in the right direction to start A. figuring out if and why the PHP script may be causing memory overages and B. Why my CPU is always over 100%. Thanks guys! Links to screen shots... can't post with low points. http://i.stack.imgur.com/A64k4.png http://i.stack.imgur.com/qm1rV.png

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• Win 7 Remote Desktop connection failure when already logged in.

  - by Andy E

  I have a bit of a strange problem, magnified recently by my broadband dropouts. I wasn't sure whether to post this on SU or SF, so I thought I'd start here as more users would be likely to know what the problem is. In short, when I try and connect to my server (Windows Server 2008) from my laptop running Windows 7, I can only connect if my remote account was previously logged out. If I'm still logged in I get the error message: Windows cannot connect to the remote server. No explanation or anything. If my IP address is the same, I don't have this problem. If I boot up Windows XP Mode and run XP's remote desktop connection it works just fine -- I think the difference there is it takes me to the remote server's logon screen. With Win 7 RDC you never see the logon screen, it asks you for credentials before entering full screen mode. The real problem is that I'm having random broadband dropouts and my IP isn't static. If I logon via Win XP RDC, log out and then run Win 7 RDC then it works fine. I realize I can just use Win XP's RDC for now, but I don't really like keeping XP Mode open if I can help it. Does anyone know a way around this problem? Maybe forcing Win 7 RDC to go to the logon screen, or changing some server-side settings to work around the IP address issue?

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