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  • In APC+PHP, how much RAM is too much? Is it okay to set apc.shm_size to many GB?

    - by Jeremy Clarke
    On our server we have a LOT of RAM for our traffic levels (16GB). The HTTP processes regularly eat up all CPU and need to be restarted without even getting close to using swap memory, so I'm looking for ways to spend RAM to ease the load on Apache (and/or help the seperate MySQL server which may be breaking Apache). I have many WordPress installs on the HTTPD instance so APC sometimes uses as much as 900MB of ram (according to the apc.php charts). Just in case I have apc.shm_size set to 1600MB which is more than it needs but not more than I can spare. This means there is usually lots of extra RAM available to APC but also very little turnover and fragmentation is never more than 1%. Is this dangerous? Should I be slimming down APC to less than 1GB just on principle? Should I be expecting some turnover within APC in the name of bringing it's overall footprint down? Having so much memory devoted to APC means that in top/htop every single httpd process shows ~1.9GB in the VIRT memory column. Obviously this is shared memory and not used per-process, but could it be hurting our server? NOTE: The problem with the server remains unclear but the effect is that about 60 times a day all 8 CPU's fill up to 100% and everything stops working until Monit sees that Apache is broken and restarts it (Monin also saves the MySQL server). I'm not sure if APC is even part of the problem but I'm trying to optimize everything just in case.

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  • Asus K55A Windows 8.1 touchpad smart gestures not working

    - by user291792
    Took me a bit to realize that since upgrading to 8.1 my touchpad smart gestures (two finger scroll, top down swipe, left in swipe, ect) don't work. I have read up a little online but can't seem to find an answer or fix that 1) sounds trustworthy and 2) is put into language and steps that I understand. I already have a hard time navigating windows 8 in general, so any help is awesome, but please dumb it down for me if you can. Thanks -K-

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  • DNS resolve .com domain on local domain

    - by Joost Verdaasdonk
    I'm building a local 2008 R2 domain as a test case to be able to write a roadmap for the real new domain that needs to be created soon. What I would like to know if I'm able to make a record in DNS that will point the domain name: www.example.com and example.com to one of the servers in my network. I tried creating an a-record for it but that doesn't work. To be honest I'm not even sure if this is possible? So can I do this? That way I would be able to fully test all our services (and webb app) offline before I build the real domain and switch the DNS records at the provider. Some advice if possible and where to start is appreciated. The solution (Thanks Brent): Create new Forward lookup zone pointing to example.com Create empty A record pointing to IP of the webserver you are targeting If www is needed create A record with Name: www and IP of your webserver sub domains repeat the process but then with names for example: sub or www.sub (and ip your webserver) Be aware of the DNS Cache while you are in this process. Things can take time or do the following: Right click the server and choose clear cache in CMD: ipconfig /flushdns (to flush the client cache)

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  • quickly close all word and excel

    - by dyenatha
    Suppose I open 10 Word files and 10 Excel files and make no changes, how do I quickly taskkill all at once? Because I must repeat several attempts to replicate race, I'm hoping for a command-line solution. I'm willing to try PowerShell and cygwin (1.5) if necessary. The OS is Windows XP SP3 with current patches (still IE7). I tried "taskkill /pid 1 /pid 2 /t" where 1 is PID of EXCEL.EXE and 2 is PID of WINWORD.EXE, but it closed only 1 window of each program. I'm trying to replicate a race where an add-in for Microsoft Office 2007 fails to exclusive-lock one of its own files, which caused the 2nd Office program to stop exiting with a warning: System.IO.IOException: The process cannot access the file 'C:\Documents and Settings\me\Application Data\ExpensiveProduct\Add-InForMicrosoftOffice\4.2\egcred' because it is being used by another process. at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy) at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options) at System.IO.StreamWriter.CreateFile(String path, Boolean append) at System.IO.StreamWriter..ctor(String path, Boolean append, Encoding encoding, Int32 bufferSize) at System.IO.StreamWriter..ctor(String path, Boolean append, Encoding encoding) at System.IO.File.WriteAllText(String path, String contents, Encoding encoding) at ExpensiveProduct.EG.DataAccess.Credentials.CredentialManager.SaveUserTable() at ExpensiveProduct.OfficeAddin.OfficeAddinBase.Dispose(Boolean disposing) at ExpensiveProduct.OfficeAddin.WordAddin.Dispose(Boolean disposing) at ExpensiveProduct.OfficeAddin.OfficeAddinBase.OnHostShutdown() at ExpensiveProduct.OfficeAddin.OfficeAddinBase.Unload(ext_DisconnectMode mode)

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  • EC2 kernel decision and issues with creating a new machine with my AMI

    - by roacha
    I could really use some advice. I started a new instance on EC2 using Amazon's AMI and during the deployment process I selected a Kernel ID of "Use Default". I then configured my server the way that I wanted to and took a snapshot of it. I then created my own AMI to create new servers with. When I try and create a new server with this AMI the server fails to start and I get the error: EXT3-fs: sda1: couldn't mount because of unsupported optional features (240). Which appears to happen because I am selecting a kernel id of "Use default" again when building my second server. I have read that in order for this to work I need to choose the same kernel id that was used in my original server. I have deleted my original server and don't know what it was using. What is the best process to follow in order to not have these issues? Should I choose "Use Default" for my original server? How do you know which kernel it selected? Then should I just document this and always specify this during the deployment of my next servers using my custom AMI? OR should I choose a custom kernel id during the initial build and always use this one moving ahead hoping Amazon never retires it? Thanks for any advice!

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  • Active Directory: Determining DN or OU from log in credentials [closed]

    - by Christopher Broome
    I'm updating a PHP login process to leverage active directory on a Windows server. The logging in process seems pretty straight forward via a "ldap_bind", but I also want to pull some profile information from the AD server (first name, last name, etc...) which seems to require a robust distinguished name (DN). When on the windows server I can grab this via 'dsquery user' on the command prompt, but is there a way to get the same value from just the user's login credentials in PHP? I want to avoid getting a list of hundreds of DNs when on-boarding clients and associating each with one of our users, so any means to programmatically determine this would be preferential. Otherwise, I'll know the domain and host for the request so I can at least set the DC portions of the DN, but the organizational units (OU) seem to be pretty important for querying data. If I can find some of the root level OU values associated with the user I can do a ldap_search and crawl. I browsed through the existing questions and found some similar but nothing that really addressed this, so my apologies if the obvious answer is out there. Thanks for the help.

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  • AD logon script, how to...

    - by allenskd
    I'm a student, I have this assignment where I need to know how to disable the user from changing the background to a client computer, thing is that I've been looking around to know what language does the logon script use, any site with handy information, tried googling but I really can't find anything useful, don't know if I'm googling the right terms All I've found for now is a lot of tutorials about mapping network drives and so on

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  • Why is cron mailing me program output even though I've redirected to /dev/null?

    - by Server Fault
    I'm trying to restart a system process through cron and getting emailed the startup output of the process. I thought redirecting STDOUT and SDTERR to /dev/null would "silence" the output but alas, this has not work. How can I get cron to silently restart this service? crontab entry: 0 6 * * * service sympa stop &>/dev/null; service sympa start &> /dev/null sample output from restart email: Stopping Sympa bounce manager bounced ...done. * Stopping Sympa task manager task_manager ...done. * Stopping Sympa mailing list archive manager archived ...done. * Stopping Sympa mailing list manager sympa ...done. ... waiting Prototype mismatch: sub Lock::LOCK_SH () vs none at /home/sympa/bin/Lock.pm line 38. Constant subroutine LOCK_SH redefined at /home/sympa/bin/Lock.pm line 38. Prototype mismatch: sub Lock::LOCK_EX () vs none at /home/sympa/bin/Lock.pm line 39. Constant subroutine LOCK_EX redefined at /home/sympa/bin/Lock.pm line 39. Prototype mismatch: sub Lock::LOCK_NB () vs none at /home/sympa/bin/Lock.pm line 40. Constant subroutine LOCK_NB redefined at /home/sympa/bin/Lock.pm line 40.

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  • Which program is locking all my executable files?

    - by Tom Wijsman
    When updating any software product, as well as manually trying to replace .exe files, it says that access is denied to the file and in fact the System process is holding a handle to the file when I check it with Process Explorer. This must be a driver or something that is malfunctioning was my first though, but now I wonder how I figure out which driver / program is doing this and why it is so. Unlocker doesn't seem to be working for me, unless someone can tell me how to use it properly other than making it appear a magical wand in the notification area.... This is what Unlocker puts in my event log: The description for Event ID 1060 from source Application Popup cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer. If the event originated on another computer, the display information had to be saved with the event. The following information was included with the event: \??\C:\Program Files (x86)\Unlocker\UnlockerDriver5.sys the message resource is present but the message is not found in the string/message table Upon searching event 1060 I get: <file name> has been blocked from loading due to incompatibility with this system. Perhaps it is because I have 64 bit?

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  • How to reduce celeryd memory consumption?

    - by Gringo Suave
    I'm using celery 2.5.1 with django on a micro ec2 instance with 613mb memory and as such have to keep memory consumption down. Currently I'm using it only for the scheduler "celery beat" as a web interface to cron, though I hope to use it for more in the future. I've noticed it is the biggest consumer of memory on my micro machine even though I have configured the number of workers to one. I don't have many other options set in settings.py: import djcelery djcelery.setup_loader() BROKER_BACKEND = 'djkombu.transport.DatabaseTransport' CELERYBEAT_SCHEDULER = 'djcelery.schedulers.DatabaseScheduler' CELERY_RESULT_BACKEND = 'database' BROKER_POOL_LIMIT = 2 CELERYD_CONCURRENCY = 1 CELERY_DISABLE_RATE_LIMITS = True CELERYD_MAX_TASKS_PER_CHILD = 20 CELERYD_SOFT_TASK_TIME_LIMIT = 5 * 60 CELERYD_TASK_TIME_LIMIT = 6 * 60 Here's the details via top: PID USER NI CPU% VIRT SHR RES MEM% Command 1065 wuser 10 0.0 283M 4548 85m 14.3 python manage_prod.py celeryd --beat 1025 wuser 10 1.0 577M 6368 67m 11.2 python manage_prod.py celeryd --beat 1071 wuser 10 0.0 578M 2384 62m 10.6 python manage_prod.py celeryd --beat That's about 214mb of memory (and not much shared) to run a cron job occasionally. Have I done anything wrong, or can this be reduced about ten-fold somehow? ;) Update: here's my upstart config: description "Celery Daemon" start on (net-device-up and local-filesystems) stop on runlevel [016] nice 10 respawn respawn limit 5 10 chdir /home/wuser/wuser/ env CELERYD_OPTS=--concurrency=1 exec sudo -u wuser -H /usr/bin/python manage_prod.py celeryd --beat --concurrency=1 --loglevel info --logfile /var/tmp/celeryd.log Update 2: I notice there is one root process, one user child process, and two grandchildren from that. So I think it isn't a matter of duplicate startup. root 34580 1556 sudo -u wuser -H /usr/bin/python manage_prod.py celeryd wuser 577M 67548 +- python manage_prod.py celeryd --beat --concurrency=1 wuser 578M 63784 +- python manage_prod.py celeryd --beat --concurrency=1 wuser 271M 76260 +- python manage_prod.py celeryd --beat --concurrency=1

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  • when to upgrade server to include more cores, versus more processors, versus additional server?

    - by gkdsp
    The server hosting market is separated into single, double, qual, etc., processors, where each processor has several cores, or CPUs. My company will offer a Linux-based web application that relies on an Apache web server and a middle tier for business logic. The middle tier is used to crunch math, and return result to a client. Many clients may access the application simultaneously. The company will start with one processor having 4 cores. I'm trying to understand how the app uses the cores and then how to scale the application as business grows, in terms of servers/processors/cores. For example, I'd assume initially one core would be used for Apache, and the other 3 used to process client's requests for math crunching... Question 1: does that mean, with the 3 cores available, I can handle 3 separate client requests simultaneously (e.g. 1 for each of 3 cores)? I mean, except for the shared RAM, is this effectively like having 3 individual machines (from pt of view or processing client requests simulaneously)? Or, only one client's request may be processed at any one time, but that client's request is divided up into up to 3 cores depending on the type of process running that does the math crunching and whether or not it can take advantage of multi threading (so the # of cores impacts how fast any one client request completes)? I'm confused about what the cores mean to the application here. Question 2: As the business grows and more client requests need to be processed, should the server be upgraded to (A) a new machine with more cores, (B) a new machine with two processors, 4 cores each, or (C) keep the original server and add another server with a single processor? Which route provides the most efficient way to scale the application, in terms of processing more client requests per time interval? Is the choice, for example, limited by RAM (when you need more RAM than box can handle it's time to add another server), or something else? Question 3: Is the total number of client requests processed simultaneously equal to the number of cores times the number of servers (minus the one core for Apache)?

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  • How do I turn off accent combining in Windows 7?

    - by shinjin
    I have English Windows 7 Professional with Hungarian keyboard language installed. The English keyboard layout works as expected, but for the Hungarian layout some kind of "accent combining" is activated. The effect of this ^+o becomes ô, ^+a becomes â, etc. This is not helpful at all, since the accented characters of Hungarian are already mapped to keys, but it's really annoying because I have to type a non-combining character to actually get ^. Is there any way to turn this "feature" off?

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  • IIS6 site using integrated authentication (NTLM) fails when accessed with Win7 / IE8

    - by Ciove
    Hi, I'm having pretty similar problems as described in case 139099, but the fix there doesn't seem to work for me. Here's the details: Server: Win2003Srv R2 SP2 (stadalone, not a member of a domain). IIS6, TCP/443 (https). Anonymous access disabled. Integrated Windows authentication enabled. Local useraccouts Each useraccount has own virtual folder with change access and read access to site root. The 'adsutil NTAuthenticationProviders "NTLM"' -thing set to site root and useraccount's virtual folder. Client: Win7 Enterprise Member of a AD-Domain IE8 Allows three login attepts then fails. Using [webservername][username] in the logon window (Windows security) Logon using other browsers (Chrome and Firefox) works OK. The Web services log shows one 401.2 and two 401.1 events. The Security Event log shows two events, first is Fauilure Audit (680), The second event is Fauilure Audit (529) with these details: Logon Failure: Reason: Unknown user name or bad password User Name: [username] Domain: [webservername] Logon Type: 3 Logon Process: NtLmSsp Authentication Package: NTLM Workstation Name: [MyWorkstation] Caller User Name: - Caller Domain: - Caller Logon ID: - Caller Process ID: - Transited Services: - Source Network Address: [999.999.999.999] Source Port: 20089 Any ideas appreciated.

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  • Switching keyboard layout in Windows globally

    - by Manuel Faux
    I'm searching for a solution to switch my keyboard layout in Windows globally for all windows quickly. When I switch the current layout by pressing the magic combination Alt+Shift or when I choose another layout in the language bar, this only changes the layout in the current window.

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  • VPS Memory Exchausted Even With Light Settings

    - by user101570
    Linux noob here. I have a 256MB VPS on Ubuntu 11.04 server and when I run "free -m" the result shows all memory being used (including the second line re: buffers/cache). I found this very strange, considering I only have 5 Apache processes running each chewing up about 20MB each. MYSQL is taking up 30MB. To my knowledge, and according to "top", I have no other memory hogs operating. Settings that may be relevant: PHP memory_limit = 32M MYSQL key_buffer = 16M Prefork MPM Maxclients = 10 So when I reviewed these settings, I naturally thought maxclients was too high, so I tried switching it to 5. Now not only does my memory still show as being 100% used, my website loads much, much slower, despite not getting any traffic aside from mine at the moment. I don't understand this. I thought a single Apache process handles all requests from a client received within the "KeepAliveTimeout" window, which I've set to 2 seconds. With my initial config. of 10 maxclients, my page load times are around .3ms, so a single process should handle that no problem, correct? So next I went to an extreme level of 1 for maxclients. My memory is still at 100% usage and my site loads painfully slow. I'm a noob at a complete loss here. According to the many tutorials I've read on basic server setup, I should be good to go. Help! Please! Edit: total used free shared buffers cached Mem: 256 256 0 0 0 0 -/+ buffers/cache: 256 0 Swap: 0 0 0

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  • Why is MySQL unable to open hosts.allow/hosts.deny?

    - by HonoredMule
    I have a storage server running Nexenta (OpenSolaris kernel, Ubuntu userspace) with MySQL on top of a ZFS storage array, using innodb_file_per_table and ulimit -n set to 8K. mysqltuner.pl confirms the file limit and claims there are 169 files. The following command: pfiles `fuser -c / 2>/dev/null indicates one mysqld process having 485 file/device descriptors (and they're almost all for files) so I don't know how reliable the tuning script is, but it is still way less than 8K and this list also finds no other process which is close to it's limit. The global total number of descriptors in use is around 1K. So what can cause mysqld to be constantly streaming the following errors? [date] [host] mysqld[pid]: warning: cannot open /etc/hosts.allow: Too many open files [date] [host] mysqld[pid]: warning: cannot open /etc/hosts.deny: Too many open files Everything appears to actually be operating fine, but the issue is constantly flooding the admin console and starts right away on a fresh boot (not only reproducible, but always from mysqld and always the hosts files, whose permissions are the default -rw-r--r-- 1 root root). I could, of course, suppress it from the admin console but I'd rather get to the bottom of it and still allow mysqld warnings/errors to reach the admin console. EDIT: not only is the actual file descriptor well within sane limits, the issue also persists (with immediate appearance) even with the file limit raised to 65535 and always only on hosts.allow/deny.

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  • Full-text search locks up database - error 0x8001010e

    - by Stewart May
    Hi We have a full-text catalog that is populated via a job every 15 minutes like so: ALTER FULLTEXT INDEX ON [dbo].[WorkItemLongTexts] START INCREMENTAL POPULATION We have encountered a problem where the database containing this catalog locks up. There are a couple of scenarios, we either see the job execute and the process hang with with a wait type of UNKNOWN TOKEN, or we see another process hang with a wait type of MSSEARCH. Once this happens the job continues to run but informs us that the request to start a full-text index population is ignored because a population is currently active. Looking in the full text log files we see the following error each time these problems occur: 2010-04-21 08:15:00.76 spid21s The full-text catalog health monitor reported a failure for full-text catalog "XXXFullTextCatalog" (5) in database "YYY" (14). Reason code: 0. Error: 0x8001010e(The application called an interface that was marshalled for a different thread.). The system will restart any in-progress population from the previous checkpoint. If this message occurs frequently, consult SQL Server Books Online for troubleshooting assistance. This is an informational message only. No user action is required."'' The only solution is to restart the SQL Server service and then the full text service. This is now occuring on a daily basis now so any help would be appreciated.

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  • More advanced 'Apple Automator' like software?

    - by OrangeBox
    What I'm looking for is a program similar to Automator or A Better Finder Rename but more extensive / advanced. In my situation we have two files with the same name, one is a MOV the other an XML. We want to use some of the metadata within the XML to rename both files. Then we want to re-arrange the contents of the XML file so that it is compatible with another piece of software we use (I think this process is called mapping?) Essentially some software that takes a bunch of variable from existing file and performs file actions to them. I imagine this would be an easy task using apple-script, but I'm wondering if there is a OSX application similar to Automator that can do the above? Questions are: Is there software that can do the above? Could Automator achieve this? What is the technical name of this kind of process? If no such software exists, what would be the best kind of script to use? eg. Make an Apple Script, python script etc.

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  • A name was started with an invalid character. Error processing resource

    - by Gallen
    Here is the exact error I'm getting when I try to launch my default.aspx file from the published folder. Can anybody point me in the right direction? The XML page cannot be displayed Cannot view XML input using XSL style sheet. Please correct the error and then click the Refresh button, or try again later. -------------------------------------------------------------------------------- A name was started with an invalid character. Error processing resource 'file:///C:/inetpub/wwwroot/MHNProServices/Default.... <%@ Page Title="" Language="C#" MasterPageFile="~/ProServices.Master" AutoEventWireup="true" CodeBehind="Default.aspx.cs"... Here are the contents of default.aspx <%@ Page Title="" Language="C#" MasterPageFile="~/ProServices.Master" AutoEventWireup="False" CodeBehind="Default.aspx.cs" Inherits="MHNProServices.Default" %> <asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server"> <link type="text/css" href="css/Default.css" rel="Stylesheet" /> </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server"> <div id="contentHead"> <img src="css/img/heading_landing.jpg" /> </div> <div id="contentTop"></div> <div id="content"> <div id="contentLeft"> <asp:Image ID="displayPicture" runat="server" /> <img id="displayOverlay"src="css/img/profilepicture_overlay.gif" /> <a id="contentButton_makeAppointment" href="Appointments.aspx?step=start"></a> <a id="contentButton_cancelAppointment" href="Appointments.aspx?step=cancel"></a> </div> <div id="contentRight"> <h3><asp:Label ID="lbl_homepageHeader" runat="server" Text=""></asp:Label></h3> <hr /> <asp:Label ID="lbl_homepageContent" runat="server" Text=""></asp:Label> </div> </div> <div id="contentBottom"></div> </asp:Content>

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  • Relinking a deleted file

    - by mbac32768
    Sometimes people delete files they shouldn't, a long-running process still has the file open, and recovering the data by catting /proc/<pid>/fd/N just isn't awesome enough. Awesome enough would be if you could "undo" the delete by running some magic option to ln that would let you re-link to the inode number (recovered through lsof). I can't find any Linux tools to do this, least with cursory Googling. What do you got, serverfault? EDIT1: The reason catting the file from /proc/<pid>/fd/N isn't awesome enough is because the process which still has the file open is still writing to it. A delete removes the reference to the inode from the filesystem namespace. What I want is a way of re-creating the reference. EDIT2: 'debugfs ln' works but the risk is too high since it frobs raw filesystem data. The recovered file is also crazy inconsistent. The link count is zero and I can't add links to it. I'm worse off this way since I can just use /proc/<pid>/fd/N to access the data without corrupting my fs.

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  • Connecting SVN from Remote Server

    - by Ashish
    I have hosted my repository in assebbla & it works fine. now I want to write a script that can automate the build process : 1. Take the code from assembla repository 2. Make a dump and copy it onto my web server. what I have researched from net states that use of commands like svn co svn+ssh://[email protected]/home/svn/test I believe I need to open Shell on my server and type these commands but shell has been disabled from my server admin. I tried to run the same from php using exec , admin has disabled that too. (am using shared hosting and want to do a automated deployment using these simple steps. i don't want to bring my local system in this process) now am not sure even if I get the shell access open to my server these commands like svn will work there as I don't have SVN installed on my server (its installed on assembla). kindly let me know if any more explanation is required regarding the same or if am going on the wrong track. Am a newbie so please be descriptive in answering :) Thanx in advance Ace

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