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• Unwanted forced authentication after server restart (Win 2k3)

  - by Felthragar

  We're running a Win 2k3 R2 Standard 64-bit edition server. On this server we're running a fileserver and the ability to allow remote login to our network through vpn. We do not currently utilize a domain setup, all user accounts are local accounts on the server. Each employee is given a unique account to login to the server. The password is a randomly generated 16 character long string, which makes it hard to remember. What we've done is basicly had the password stored on the client machine (standard "Remember Me" functionality). This has worked well. However, last night our server automatically restarted after an automatic update. After that, some of our employees, myself included, had to re-authenticate with the server, submitting our credentials again. Then again, some others did not have to re-authenticate. Do you guys have any idea why this is? Is there a setting to prevent this? I've checked the logs but I couldn't find anything of interest. Then again I'm not really sure what I'm looking for. Thanks in advance, I'll try to answer any additional questions you may have. Edit: When I say "login" or "authenticate" I mean through the standard windows samba protocol. Edit 2: Ok, new day. Tonight the server restarted again, and the same two clients that had to re-authenticate yesterday had to re-authenticate today as well. The rest did not.

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• VMWare Server modifying files related to paused VMs, is this expected?

  - by David Spillett

  While refreshing the backup of a VM used for testing, I experienced the following warning from tar: tar: /VMsR0/cli_noddyco_test/VM2K8_32_web.vmem: file changed as we read it The VMs in question were paused at the time. My first though was that I'd mixed up the machines and was trying to backup something that was still actively running. To be sure I unpaused and properly shut down the VM, and the vmem files that tar reported changing vanished as I would expect. Is it normal for VMWare Server to touch or alter files for paused VMs like this, or is there likely something amiss with our setup? If this is expected behaviour, is just touching the vmem file (and so altering the last modification date without actually changing content)? If it is normal for files relating to paused VMs to be updated I shall have to revise our backup procedures to make sure the VMs are fully shut down fully rather than just pausing them (this isn't a problem, but it seems strange and I'd prefer to understand what VMWare is doing and why instead of just dismissing it as "one of those things" and working around it). For further detail: the host in question is VMWare Server version 2.0.2 running on 64-bit Debian/Lenny, and that VM did not have a snapshots at the time. We have backed up paused VMs this way in the past with no such warnings from tar.

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• How expensive is a hostname in htaccess? Other solutions possible?

  - by Nanne

  For easy allow or disallowing of dynamic IP-adresses you can add them as a hostname in a .htaccess file. As I have read from: .htaccess allow from hostname? it does a reverse lookup on the connecting ip address, seeing if the response matches the allowed name. (Well, actually Apache is doing a double lookup, first a reverse lookup and then a forward lookup on the result of the reverse.) This is the reason we are currently not using dynamic-ip hostnames in the .htaccess: this "sounds" quite heavy: 2 extra lookups for every request. Is this indeed quite heavy, and would a reasonably busy server that is rather looking for less then more load get away with this :)? (e.g.: how does this 'load' compare to the rest? If a request is 1000 times more expensive then the lookups it might be negligible. otoh, it could be that final straw :) ) Are there other solutions? I can write a script that does a lookup of the hostname and put it in .htaccess files ofcourse, but this feels a bit like a hack.

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• Windows 7 product key, which is the valid one - in registry or on a sticker?

  - by me how

  I am not too familiar with the software licensing and how this all works, but I have a question regarding Windows 7 and partially Office - generally Microsoft products. I have been asked to assist our IT guy who wants to collect all the product IDs for Windows 7 and Office. I haven't been given much details how to go about it and how to collect it. After a bit of research I have decided to use a freeware that pulls the software licenses out of the registry. I thought that was the easiest and would provide the most accurate product IDs. I've used Belrac Avisor to obtain all the informations. It turns out that about 25 machines use the same product key. I have asked if the company has bought a commercial license or something but there isn't anyone available at the moment who could answer my question. I have told the IT guy that there are 25 machines using the same product key and asked if that is alright. He told me to go around and write the product keys from the sticker(label) on each machine. I am just not quite sure if that's the right approach specially that the numbers do not match.... So, now I see that the numbers aren't matching and my question is in terms of software licensing which is the VALID and correct product key to provide if ever questioned about software license? Is it the number on the sticker or is it the number stored in the registry?

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• Security Token for Mac/Linux/Windows, self-managed, pref. open source?

  - by DevelopersDevelopersDevelopers

  I'm looking to buy an evaluation security token (combined smart card/usb reader) for my business that works on: Windows 7 x64 OS X 10.6.x x64 Ubuntu Linux (64 or 32 bit, 10.04 or 10.10, I can bend based on possible tokens) Functionality I need is: Login authentication Authentication for whole-disk encryption (in Linux/Windows, Mac is flexible here) Signing/encryption using PGP and x.509 certificates RSA-2048 key-capable (1024 not good enough.) I can manage the certificates myself Open source middleware/drivers (not necessarily FOSS, just source available. Can flex on this, I just want to be able to audit the code. OpenSC-compatible on Linux would be great.) Is there any token that can do all of this? Or would I need multiple ones to accomplish this? Or do I need to look at smart cards and readers to get this? I have been researching this for a while and have had a heck of a time even getting accurate information about products. Also, I am in the USA, and it appears that EU export laws prevent me from buying from there, so those vendors are out. I was looking at Feitian tokens from Gooze, but since they are in France I can't buy.

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• Configuring WPA WiFi in Ubuntu 10.10

  - by sma

  Hello, I am trying to configure my wireless network on my laptop running Ubuntu 10.10 and am having a bit of difficulty. I am a complete Linux newb, but want to learn it, hence the reason I'm trying to set this up. Here's the vitals: It is a Gateway 600 YG2 laptop. It was previously running Windows XP, but I installed Ubuntu 10.10 in place of it (not a dual boot, I removed XP altogether). I have an old wireless card that I'm trying to resurrect. I haven't really used the card in a couple years, but it seems to still work, I just can't connect to my home's wireless network. The card is a Linksys WPC11 v2.5. When I plug it in, Ubuntu recognizes the network, but won't connect to it. My home network uses WPA encryption and the only connection type that Ubuntu's network manager is giving me is WEP and then it asks for a key -- I have no idea what that key should be. So, basically, I'm asking, is there a way I can instead connect through WPA? I've tried creating a new connection in network manager, but that won't work, it keeps falling back to the WEP connection and asking me for a key. I have tried to install the XP driver using ndiswrapper but I don't know if that's working or not. Is there a way to tell if: A) the card is working as it should B) the correct drivers are installed (again, I installed the XP one using ndiswrapper NET8180.INF, but I'm not sure what to do next) Any help would be appreciated. Thank you.

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• Apache https is slow

  - by raucous12

  Hey, I've set apache up to use SSL with a self signed certificate. With https (KeepAlive on), I can get over 3000 requests per second. However, with https (KeepAlive off), I can only get 13 requests per second. I know there is supposed to be a bit of an overhead, but this seems abnormal. Can anyone suggest how I might go about debugging this. Here is the ab log for https: Server Software: Apache/2.2.3 Server Hostname: 127.0.0.1 Server Port: 443 SSL/TLS Protocol: TLSv1/SSLv3,DHE-RSA-AES256-SHA,4096,256 Document Path: /hello.html Document Length: 29 bytes Concurrency Level: 5 Time taken for tests: 30.49425 seconds Complete requests: 411 Failed requests: 0 Write errors: 0 Total transferred: 119601 bytes HTML transferred: 11919 bytes Requests per second: 13.68 [#/sec] (mean) Time per request: 365.565 [ms] (mean) Time per request: 73.113 [ms] (mean, across all concurrent requests) Transfer rate: 3.86 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 190 347 74.3 333 716 Processing: 0 14 24.0 1 166 Waiting: 0 11 21.6 0 165 Total: 191 361 80.8 345 716 Percentage of the requests served within a certain time (ms) 50% 345 66% 377 75% 408 80% 421 90% 468 95% 521 98% 578 99% 596 100% 716 (longest request)

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• Finding bluetooth link key in Win7, to double pair a device on dualboot computer

  - by Ilari Kajaste

  How can I dig up the bluetooth link key for a paired device in Win7? Is this something that is dependent on the bluetooth stack I'm using (Toshiba), or is there a generic place to store these in Win7? Note: I'm not talking about the six-digit code usually typed by the user during pairing - that is worthless since it's discarded after pairing process. What I mean is the 128-bit link key that the devices exchange during pairing, and use thereafter to encrypt all their bluetooth traffic. Background: I dualboot Win7 / Ubuntu on my laptop, and I would like to have my phone paired to both OS's. Since the dualbooting computer has only one bluetooth adapter and thus only one bluetooth address, I cannot do two pairings to the phone, since on the second pairing (windows) the phone just replaces the previous pairing (linux) to the same bluetooth address. A thread on Ubuntu forums pointed me to what I have to do - pair first on linux, then on windows, and then replace the link key on linux side with the one windows negotiated. I can find the linux side pairing key from /var/lib/bluetooth/[BD_ADDR]/linkkeys - no problems there. However, on windows side I can't find the key. According to the forum post, on windows side the key should be in SYSTEM\ControlSet002\services\BTHPORT\Parameters\Keys\[BD_ADDR] but while that registry key does exist, it has no subkeys. (And a similar registry path in ControlSet001 didn't have any subkeys either.) One thing I've been instructed to do is to capture all events during pairing with Sysinternals Process Monitor. I did this, but I haven't been able to find any useful information from the captured events, not even by exporting the data to a huge XML and grepping that with the BD_ADDRs (with or without colons). So how could I find the link key for a paired device in Win7? Some reference information: Wikipedia: Bluetooth, Security Now: Bluetooth security

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• Long running php script hangs/terminates on IIS 7.5

  - by Rich

  I'm a bit of nube when it comes to configuring IIS 7.5 and Php so apologies if this is a silly question but I've been wrestling with this for over half the day and need some fresh input. I have a php application running on IIS 7.5 , php 5.4 running as fastcgi. The application works absolutley fine with the exception that long running php scripts seem to hang; no 500 error they simply seem never complete and return the results to the browser. I've written a simple test script below to eliminate the possibility of programming error in the main app : <?php /* test timeout */ /*set_time_limit(110);*/ echo "Testing time out in seconds\n"; for ($i = 0; $i < 175; $i++) { echo $i." -- "; if(sleep(1)!=0) { echo "sleep failed script terminating"; break; } } ?> If I run the script beyond 175 seconds it hangs. Below that it will return the results to the browser. Here are the time out parameters that I've set for php and fastcgi. I've also played around setting these really low in order to get various time out errors and have succeeded which brings me to the conclusion that there's another setting that I'm missing .. perhaps. fastcgi activity timeout=800 Idle Timeout = 900 request Timeout 800 Php max_execution_time=700 Any solutions or pointers in the right direction would be very ... very welcome. Thanks

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• What LPR arguments do I need to print a 1400x800 pixel image on a 4x6 label?

  - by Nick

  This is driving me nuts. UPS sends our system a 1400x800 GIF image of a shipping label, which is supposed to fit nicely on a 4x6 page. Unfortunately, I can't seem to get the command line options right to make it happen. We're using an Eltron/Zebra 2844 with a network adapter, and printing from our Ubuntu 8.04 server using CUPS. We're using the correct drivers, and test pages print correctly. No matter what I try though, it insists on printing the UPS labels accross 6 pages, with a little bit of the label on each page, or way too small. I've tried a bazillion different lpr settings, most of them producing garbage. The closest I've gotten is this: lpr -P Eltron2844 -o natural-scaling=55 -o page-right=0 -o page-left=0 -o landscape -o media="4x6" ./1ZY437560399620027.gif but it causes the image to be too small on the page. It's about an inch too short, and there's a 1/2" margin on both sides. If I bump the scale up to 56, it explodes the image onto two pages, and squashes it. Any ideas?

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• Windows 7 black screen after boot animation

  - by t_virus

  This is happening with my windows 7 64-bit install frequently. Today i was trying to install an icon pack. There was already a restore point prior to it so i didn't feel like create one. I replaced the following system files in both system32 and sysWOW64 imageres.dll imagesp1.dll zipfldr.dll and shell32.dll After a reboot i see windows boot animation and then a black screen (with no mouse) I let it like that for 10 minutes and the laptop automatically went to sleep mode. I wake it up and see an error box this error "interactive logon failed to initialize" I close it and i'm left with a black screen again, this time with a mouse though. I tried using automatic system repair. It just tells me to remove any extra hardware (i have none attached atm) System restore finishes successfully but doesn't fix the problem. Safe mode doesn't work either. same black screen after boot animation Can someone help me with this? Also, I'll be grateful anyone can upload those default files (listed above) for both system32 and sysWOW64 from a windows 7 64bit install (no service pack)

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• Constant crashes in windows 7 64bit when playing games

  - by yx.

  I've tried everything I can possibly think of in trying to fix this problem and I'm totally out of ideas, so any help would be appreciated: The problem: whenever I fire up a game, it works for a short while with no problems and then it would crash. Either its a hard crash, forcing me to reboot, or windows would report that the display driver has stopped working and recovered. Here is a list of things I've already tried: Drivers - tried the latest drivers (catalyst 9.12) as well as the stock drivers that came with the video card. Also have the latest BIOS/chipset Memtest - Ran Memtest86+ overnight, had no problems, the windows diagnostic tool also does not find any problems. Overheating - Video card/cpu temperatures are well below peak (42 and 31 Celsius receptively) PSU Voltage - CPUID shows that the voltage levels are all above what they should be. The PSU itself is only roughly 16 months old and is a good model. HDD - No errors when checked GPU - Brand new (replaced previous card since I thought it was the problem, apparently not) Overclocking - Everything is at stock levels, memory voltage is set to manufacturer's standard Specs: Motherboard: ASUS P5Q Pro CPU: Core 2 Duo E8400 3.0 ghz OS: Windows 7 home premium 64 bit Memory: Mushkin Enhanced 4GB DDR2 GPU: Sapphire HD 5850 1GB PSU: SeaSonic M12 600W ATX12V DirectX: DX11 Event Viewer after a crash always has these logged: A fatal hardware error has occurred. Reported by component: Processor Core Error Source: Machine Check Exception Error Type: Bus/Interconnect Error Processor ID: 1 The details view of this entry contains further information. A fatal hardware error has occurred. Reported by component: Processor Core Error Source: Machine Check Exception Error Type: Bus/Interconnect Error Processor ID: 0 The details view of this entry contains further information. A previous card that I had (4850x2) also had these errors, so I changed video cards, but the same thing is happening.

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• How can I get mouse capture to work in virtualbox when I move guest window to second monitor?

  - by Dan

  I'm running VirtualBox on a Win7 host. Guest OS is Centos. My setup is a laptop (screen 1) with a huge external monitor (screen 2). I'm only telling Centos there is one monitor though. When I start up VirtualBox on screen 1, the mouse capture works fine. I don't have mouse integration because (I think) the kernel on Centos is too old to support it. That's fine, I don't mind doing the Right-Control thing. The problem I have is that when I drag the whole VM window over to my second monitor, the mouse capture doesn't work right anymore. I click inside the VM and can move the VM cursor a little bit, but I can't always get to the edges of the VM screen -- before I get all the way to an edge, the cursor will escape from the VM as if I had hit right-control. But it's still captured according to the icon, and if I then hit right-control, the guest cursor jumps to a different screen location. My workaround: if I have the VM window mostly on screen 2, but a small corner of it still on screen 1, then the mouse capture works correctly. Is there a setting to make this work better?

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• #550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found ##

  - by gtaylor85

  I've searched serverfault and found this question pop-up quite a bit. Unfortunately others problems aren't exactly like mine, and because I'm a true beginner I wanted some more "specific to me" help. If you don't mind. I just set-up a new computer for a user. Copied over her auto-populate and archive emails. Her email, for the most part, works fine. But when she tries to send anything to [email protected] she gets the #550 5.1.1 error. If she uses the exchange webapp she does not have the issue. I can send email to BSMITH, and so can everyone else. The user, as far as I can tell from the EMC reports, is the only person having emails sent back to them and only from BSMITH. I have googled the crap out of this, and attempted some of the solutions to no avail. I've looked for the bmith account in the disabled accounts and copied and attempted to add "IMCEAEX-_O=CHILD+20STUDY+20CENTER_OU=FIRST+20ADMINISTRATIVE+20GROUP_CN=RECIPIENTS_CN=BSMITH@mydomain.com" as an X500 email. I honestly am just following instructions though and I don't really understand what it is I'm doing. Diagnostic information for administrators: Generating server: FS2.FS1D.local IMCEAEX-_O=CHILD+20STUDY+20CENTER_OU=FIRST+20ADMINISTRATIVE+20GROUP_CN=RECIPIENTS_CN=BSMITH@mydomain.com #550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found ## BTW I love this site and only found out about it a few weeks ago. My girlfriend now loves the photo.stackexchange. So thanks for such a helpful community.

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• Power surge PC damage: How can I test all components of my PC without access to a second computer?

  - by Doug T.

  Ever since we had some crazy power surges last week my 64 bit Windows 7 PC has been acting strange. My USB network adapter disconnects from the wireless and can't detect the signal. I have to disable/reenable the adapter to detect it again. Also my wife has reported that the PC has rebooted a few times while I'm not sitting at it. Today I finally caught the reboot while I was using the PC. I got this blue screen of death. Stop Code 0x00000109: "Modification of system code or a critical data structure was detected." I followed the advice at the linked article and ran a memory test. I used memtest86 and its already found around 300,000 errors out of 8 gigs of ram. Now I'm worried -- what are the odds this is isolated to just my memory and not just a system wide problem? Isn't there a good chance that many other components are fried? More importantly, how can I test those other components? Are there tools similar to memtest I can use to test my motherboard/video card/power supply? If these are vender specific, is it typical for vendors to provide testing tools?

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• Problem running MVC3 app in IIS 7

  - by mjmoore99

  I am having a problem getting a MVC 3 project running in IIS7 on a computer running Windows 7 Home-64 bit. Here is what I did. Installed IIS 7. Accessed the server and got the IIS welcome page. Created a directory named d:\MySite and copied the MVC application to it. (The MVC app is just the standard app that is created when you create a new MVC3 project in visual studio. It just displays a home page and an account logon page. It runs fine inside the Visual Studio development server and I also copied it out to my hosting site and it works fine there) Started IIS management console. Stopped the default site. Added a new site named "MySite" with a physical directory of "d:\Mysite" Changed the application pool named MySite to use .Net Framework 4.0, Integrated pipeline When I access the site in the browser I get a list of the files in the d:\MySite directory. It is as if IIS is not recognizing the contents of d:\MySite as an MVC application. What do I need to do to resolve this?

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• Windows 7 - "Magic" frequent folder

  - by TheAdamGaskins

  Every week, I export an mp3 file from audacity into a folder with that day's date (e.g. this past sunday I exported the file to a folder named 20130609). Then I close everything and that's it for a while. Then, I come back a few hours later to upload the file to ftp. I usually have some folders open, so to open a new one, I right click on the folder icon on the taskbar... to open a new folder window and browse to this folder I just created, right? Well I look up a little bit and: So I click it and upload the file, and it actually saves me 30 seconds, which is really awesome... but what in the world? It happens every single week without fail. I create the folder inside the audacity export window. The folder stays on the frequent list until I create a new folder the following week. This was definitely not an advertised feature of Windows 7, and it's extremely handy... but it really just seems like magic to me. How does it work?

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• Ubuntu 12.04 as router with 2 nic

  - by Blue Gene

  I have been trying this setup for weeks and still can not make this to work... ubuntu 12.04 64 bit with 2 nic nic1: eth0:192.168.2.33 -static ip with internet access (connected to modem) nic2: eth1:192.168.1.2 -static ip connected to LAN. enabled ip_forward on ubuntu box net_ip_forward = 1 on the LAN with ip address 192.168.1.5 specified gateway as 192.168.1.2 and able to ping gateway.But can not ping public address.What am i missing? on router box: route -n Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.2.1 0.0.0.0 UG 100 0 0 eth0 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 tried ip route add 192.168.2.0/24 via 192.168.1.2 dev eth0 route -n on LAN 192.168.1.5 Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.1.2 0.0.0.0 UG 100 0 0 eth0 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 192.168.2.0 192.168.1.2 255.255.255.0 UG 0 0 0 eth0 iptables default policy is to accept all. tracepath 8.8.8.8 from LAN 1: 192.168.1.5 0.060ms pmtu 1500 1: 192.168.1.2 3.367ms 1: 192.168.1.2 3.764ms 2: no reply Is there a way to make this work,other than NAT ing.

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• Why doesn't the value in /proc/meminfo seem to map exactly to the system RAM?

  - by Eric Asberry

  The values in /proc/meminfo for MemTotal don't make sense. As a human, eyeballing it, it seems to roughly correspond to the installed RAM, but for using it to display the installed RAM from an automated utility it appears to be inexact, and inconsistent. For a system with 1G of RAM, I would expect the MemTotal line to have a value of 1048576 - 1024*1024. But instead, I'm seeing 1029392. On another 4G box, I'm seeing 3870172, which is not a multiple of 1024, and it's not even close to 1029392*4. On an 8G box, I get 8128204, which again seems to have no correlation to the other values, nor is it a multiple of 1024. I'm trying to use this information to report the RAM on a status web page. My work-around is to just "round" it to the nearest 1G multiple, but I'd like to understand why these values seem inconsistent and don't match my expectations. Can somebody fill me in on what I'm missing here? EDIT: To expand on the accepted answer below.... The reference can be found here. Also of interest to me from that page, which explains the inconsistency, is this bit: meminfo: Provides information about distribution and utilization of memory. This varies by architecture and compile options. ...

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• Ubuntu 12.04 VirtualBox on powerful W7 quite slow

  - by wnstnsmth

  I own a Thinkpad T420s with 8GB RAM, 160 GB SSD and a quite fast i7 processor. Summa summarum a very fast computer that works perfectly. Now, I am not very impressed by the performance of my Ubuntu 12.04 virtual machine running on VirtualBox 4.1.18. I assume that Virtual Machines are always a bit slower than the guest system, still I think it should be more performant given the hardware settings I give it: 4096 MB RAM 1 CPU without CPU limitation (I would like to give it more but then it does not seem to work - I am not experienced in this maybe somebody could give me advice on this too) Activated PAE/NX, VT-x/AMD-V and Nested Paging 96 MB Graphics Memory (no 2D or 3D acceleration) ~ 14 GB disk space, currently about 7 GB are used Maybe I misconfigured something, could you give me a hint please? Thanks! Edit: What I mean by slow is that for example switching tabs in the browser (whether FF or Chrome) only goes with a 0.5s delay or something, as well as switching application windows and/or double-clicking applications in the dock to get all open windows.. opening Aptana takes about a minute whereas opening something like Photoshop on the guest system takes 5 seconds

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• mysql disk io keeps increasing ... is that normal?

  - by trustfundbaby

  So I've been trying to figure out this disk IO problem I have been having with my linode VPS. Over the last day or two I've just left watch -n1 pidstat -d running in a console window and the output looks like this: Monitoring it over the last few days, I've noticed that my problem lies with the init, searchd, and mysql processes. Searchd is sphinx and all its indexes are on disk, so disk io there is inevitable (apparently). What I can't understand is why the disk reads (kB_rd/s) for mysql refuse to stabilize and just keep going up. It started out at 154 yesterday and is up to what you see in that screen shot. but disk writes (kB_wr/s) have remained pretty constant the entire time. My VPS only has 768MB RAM, my mysql db has a size of about 220MB and after running mysqltuner.pl and reading a bit about it, I've been advised to set my innodb_buffer_pool_size to 220MB but I simply cannot afford to do that ... I have it up to 150MB. My question is twofold. Why does the init process have that much disk reading to do? Why is mysql doing so much disk reading?

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• Setting up test an dlive enviornment - how?

  - by Sean

  I am a bit new to servers and stuff so had a question. I have my development team working on my website. They are in different countries and currently they put all the work live on the test site. But the test site is open to anyone who knows the URL. It is behind a directory but this effects my QA process because i cannot use the accurate URL structures to prevent the general public from seeing it. So what I want to do it: Have my site live on the net but only for me and my team, so like an internal network. Also I will need to mirror this to my live site when i put it live. So i guess this is something like setting up a staging and live environment. So how to do it and are both environments on the same physical server or do i need to buy two servers? And if i setup a staging environment how will i access it and my team since we are all spread out so i assume we need to log into something to access it? What about the URL - do i need a different URL for the test site or can i use the same live url for the test site? I plan to get a dedicated server + CDN for my site.

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• What's the safest way to kick off a root-level process via cgi on an Apache server?

  - by MartyMacGyver

  The problem: I have a script that runs periodically via a cron job as root, but I want to give people a way to kick it off asynchronously too, via a webpage. (The script will be written to ensure it doesn't run overlapping instances or such.) I don't need the users to log in or have an account, they simply click a button and if the script is ready to be run it'll run. The users may select arguments for the script (heavily filtered as inputs) but for simplicity we'll say they just have the button to choose to press. As a simple test, I've created a Python script in cgi-bin. chown-ing it to root:root and then applying "chmod ug+" to it didn't have the desired results: it still thinks it has the effective group of the web server account... from what I can tell this isn't allowed. I read that wrapping it with a compiled cgi program would do the job, so I created a C wrapper that calls my script (its permissions restored to normal) and gave the executable the root permissions and setuid bit. That worked... the script ran as if root ran it. My main question is, is this normal (the need for the binary wrapper to get the job done) and is this the secure way to do this? It's not world-facing but still, I'd like to learn best practices. More broadly, I often wonder why a compiled binary is more "trusted" than a script in practice? I'd think you'd trust a file that was human-readable over a cryptic binaryy. If an attacker can edit a file then you're already in trouble, more so if it's one you can't easily examine. In short, I'd expect it to be the other way 'round on that basis. Your thoughts?

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• How to deploy new instances of the same application (on 1 server) automatically?

  - by Intru

  I'm working on a SaaS application where each customer runs its own version of the application. All the application instances currently run on a single server. This works quite well for us (we need less resources in total). The application doesn't use a lot of resources, so even a small VPS would be overkill (and more expensive). Adding a new customer is currently quite a bit of work: Create a user that is allowed to ssh Create a new MySQL database and user Create a virtual host for the application Log in with the new user, do a git checkout of the application (in the right location) Create tables in the new database, and add some init data Add some cron jobs Create a first user that can log in Add this new instance to capistrano What would be the best way to automate these tasks? Are the applications that can (given proper configuration) do this? Ideally this should be usable for a sales-person (so something web-based). I could write a (bash) script that does most of these tasks, and then maybe add a small web-based wrapper where someone could provider the domain/default user information. Of course, this would also require a delete-script, since some customers will eventually leave, which means that you need a list of all existing customers/instances.

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• Giving the root user priority to maintain Debian (while server collapsing under heavy load)

  - by Saix

  Is there any way to setup Debian to prioritize any or specific root's activity before every other? For instance, several times per year something gets wrong (usually man's fault by overstressing apache/mysql) and system gets unresponsive under heavy load like 200 (8-core cpu). I know there are limits for php scripts to run then kill, but that's not the way because this limit has to be at least 45 minutes long. The problem is, until I'm able to login via SSH and let apache/mysql restart under this server stress, it nearly hits these 45 minutes anyway. Also hardware restart causing usually to run fsck at boot time on all harddrives since it's usually pretty long the box haven't been restarted. I was told it's really not good idea disabling fsck but then again, it takes more then hour to complete. What is the fastest way to restart apache/mysql? Is there any way to give ssh users or root user higher priority so the logging in and completing these restarts (rather stops though) commands wouldn't take so long? One comes to my mind.. use NICE for apache/mysql but no way. I can't risk limiting those two vital apps 24/7 or could I? I'm a little bit scared if any other system process wouldn't slow the pages down too much. Any backup process, swap (if any) etc. There is pretty heavy PHP framework with 20k visits a day, so it needs every hw/sw resource available. I can't throttle it the whole time, just in certain points when system gets unresponsive, so I could maintain it.

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