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• Tomcat memory usage

  - by Adrian Mester

  I'm running tomcat on a ubuntu 10.4 VPS with 512MB of RAM (1024 burstable). I'm using it for development, so performance isn't an issue, but memory is. Tomcat is currently using about 250MB without any apps installed (I compared memory usage with tomcat stopped and running), and I also need to run lighttpd and mysql. Is there any way to get that number down? I don't need it to be able to handle a large number of requests at once.

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• Allow users to view Word documents only and not be able to edit, copy or save them.

  - by Alexander

  Hello In a traditional Windows Server 2003 environment with AD, we have shared a folder for our policy documents (MS Word). These documents get edited/updated now and then by the administrator(principal of college). Users only have read-only access to the folder, but they can still save-as and then change the content. Sharepoint is a possible solution but not easy to implement. We also thought of using a CMS on Linux and installing Joomla to let users only view the docs with a document management system... but is it possible to automatically retrieve the policy folder on the network and convert or put it in a format that users can only view and not copy? We also thought of saving the docs to secure pdf format but the principal wants an automated system. Basically she just wants to work in Word and the policies must be available to staff members on the network. Any ideas? Much appreciated.

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• gem install rails gives me Error: undefined method include?

  - by johnlai2004

  I'm using ubuntu 9.10, apache 2 and mysql 5. I install ruby 1.8.7 on the server. I ran the command gem install -v 1.2.3 But then I get the error ERROR: While executing gem ... (NoMethodError) undefined method `include?' for nil:NilClass What did I do wrong?

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• process killed -- delete output file?

  - by user13743

  I have a bash script that runs on our shared web host. It does a dump of our mysql database and zips up the output file. Sometimes the mysqldump process gets killed, which leaves an incomplete sql file that still gets zipped. How do I get my script to 'notice' the killing and then delete the output file if the killing occurred?

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• How do I get meaningful error messages in IIS7?

  - by Petras

  I have a classic ASP website that is crashing in IIS7. It is crashing because IIS doesn't allow file uploads greater than a certain size. I know this because files below about 200k work fine. I removed the Status Code 500 error in IIS but I still don't get a file name and the line where my code failed as I do when running locally. Instead I get: "The page cannot be displayed because an internal server error has occurred. If you are the system administrator please click here to find out more about this error." How do I get a file name and the line where my code failed? Here are my IIS settings:

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• Help desk cannot respond to UAC prompts over Remote Assistance

  - by blsub6

  I'm trying to use the in-built Remote Assistance (RA) software in Windows 7 to support my users. I initiate a RA session with the user and ask to remotely control their desktop. They tick a little check box that says something to the effect of 'allow helper to respond to UAC prompts' and it pops up with a UAC prompt. The user cannot respond to the UAC prompt because they're not a local administrator - I am. Isn't that what that little check box is for??? I've found this on TechNet from back in '07 on Vista. From what I've found, I could disable UAC (terrible idea) or make all my users local administrators on their computers (yet another terrible idea). I'm hoping that MS has fixed this little oversight in Windows 7. Remote Assistance is completely useless to me if I can't respond to UAC prompts with my username and password

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• hardware addressing and configurable addressing scheme

  - by Zia ur Rahman

  basically i want to ask question about configurable addressing scheme for LAN interface hardware. i have read about it from a book, some main points are given by a configurable addressing scheme provides a mechanism that a customer can use to set a physical address.The mechanism can be manual (the switches that must be set when the interface is first installed).or an electronic memory such as an EPROM that can be downloded from the computer(what does this means). Most hardware needs to be configured only once- configuration is usually done when the hardware is first installed. Question:Suppose a network administrator configures the LAN interface hardware (assigns the address) when he installs it. Now later on if he needs to change the physical address of the device can he change it? Or in this addressing scheme the hardware can only be configured once and we can not reconfigure it later on.

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• Blocking HTTP clients which request certain URLs repeatedly

  - by Guido Domenici

  I run a website on Windows Server 2008 R2. Looking through the IIS logs, I have noticed that there are some IP addresses repeatedly requesting certain URLs (such as for example /mysql/phpmyadmin/main.php, /phpadmin/main.php) which do not exist, as the site is entirely served off of ASP.NET. They are obviously fishing for known vulnerabilities. My question is, are there any firewall or other tools (Windows built-in or commercial) that allow me to block those IP addresses which request certain URLs multiple times?

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• Can not RDP to Win 2003 box or initiate remote restart

  - by Richard West

  I've got a Windows 2003 server that's at my remote data center. This morning I tried to connect to it via RDP, but the connection fails with the following error: This computer can't connect to the remote computer. Try connecting again. If the problem continues, contact the owner of the remote computer or your network administrator. I have also trying issuing a remote shutdown/restart command using the "shutdown -i" command from my local system. No error is reported, however the system does not reboot. This server runs SQL Server 2005 and it is still fully operational and responsive to queries. I can also remotely connect to the services control panel of the remote system. Is there anything that I can try to regain control of the system, short of having an operator in the data center do a hard reboot on the server for me?

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• Why am I getting permission denied installing Powershell 2.0 on Windows XP (and certain other update

  - by spoulson

  I'm working on a corporate desktop (still) running Windows XP SP2. I recently received a new PC and am reinstalling all my tools. Something is different about this one in that it won't let me install Powershell 2.0. When I do, I get a popup: You do not have permission to update Windows XP. Please contact your system administrator. This also occurs for other installs, like Service Pack 3 and Windows Installer 4.5. I'm aware this PC is under group policy restrictions, but I haven't narrowed down what restriction is preventing this install so that I can have the appropriate support team resolve it. What setting could be responsible for this?

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• Subversion/Hudson/Sonar/Artifactory - too much for my little server to handle! Help!

  - by Ricket

  I have a little dedicated server. It's at a cheap price and has a simple AMD 1800+ (1.5ghz), 256mb DDR RAM, ...need I continue? And I think I'm overloading it already. I have installed the following, and it's running CentOS 5.4: Webmin Apache MySQL Subversion as an Apache module Hudson (standalone) Sonar (standalone, runs with a standalone Jetty install) Artifactory (standalone) That's pretty much it. But I'm having problems; pages are loading quite slowly. Network speed of the server is excellent, but I think I'm just running out of CPU and/or memory. A side-effect of the pages loading slowly is that sometimes Hudson times out, not being able to start Maven or contact Sonar in a certain amount of time. I think the next step to speed things up might be to move to an application server and use the WAR version of Hudson, Sonar and Artifactory together on that server. I don't know that it will help, but it just seems to make sense, especially with Sonar running on its own Jetty install and the other two probably running their own mini application servers as well. Am I correct in thinking this? Is this the right course of action? Any other tips on how to make the server run faster? I can post more data if you'd like, just let me know what else would help you answer my question. Oh, also just to cure any suspicions, I don't have any sort of virus or spyware. I protect my SSH access with DenyHosts (which has blocked 300+ brute forcers in the past few months), and I have confirmed that the top four processes in terms of memory and CPU usage are Sonar, Artifactory, Hudson, and MySQL. Edit: I just thought of another thing that I'd like you to comment on as well: Apache currently has 8 spawned slave processes, taking 42MB of ram apiece. This is not my web server. Is everything else able to function if I shut down Apache? Can you point me towards a tutorial or something on migrating Subversion from Apache into something that might work along with the other three applications, maybe even make Subversion a WAR file or something?

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• How can I get a data usage/access log for an external hard-drive?

  - by Vittorio Vittori

  Hello, I'm working in an office with many people and sometimes I leave my external hard drive with my personal data inside. I would to know if there is some way to see if my hard disk was used during my absence. I'm not the computer administrator, so I can't use exclusive file permissions and I would really like to know hard disk is opened from another computer. I am using a Mac. Does exist some other way to protect personal data on usb device like an hard-drive? If yes can you write some link to possible guides? I hope there is some ploy!!

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• How to create a password-less service account in AD?

  - by Andrew White

  Is it possible to create domain accounts that can only be accessed via a domain administrator or similar access? The goal is to create domain users that have certain network access based on their task but these users are only meant for automated jobs. As such, they don't need passwords and a domain admin can always do a run-as to drop down to the correct user to run the job. No password means no chance of someone guessing it or it being written down or lost. This may belong on SuperUser ServerFault but I am going to try here first since it's on the fuzzy border to me. I am also open to constructive alternatives.

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• How can I get my License Key from a boot CD?

  - by dubRun

  We recently acquired a server that's been in use for a while, but no associated software, logins, etc. We attempted to blank the administrator account password, but that didn't work. We also tried some deeper edits on the password, but no avail there either. Now what I'm looking to do is to re-install windows using the existing registry key on the server now. I've read that you can access the product key in the registry, and using the password tool (a linux boot cd) we are able to view the registry. When I tried this, I got the ProductId (Which version of windows), not the registry key. The OS I'm attempting to read from in Windows Server 2003 R2.

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• Java Class path problem in cent os..

  - by Ramesh

  I have installed java in centos5 classpath is not working .... my bash_profile export PATH=$PATH:/zzz/jdk1.6.0_03/bin/ export JAVA_HOME=/zzz/jdk1.6.0_03/bin/java/ export CLASSPATH=$CLASSPATH:/zzz/aa/mysql.jar:. java -version java version "1.6.0" OpenJDK Runtime Environment (build 1.6.0-b09) OpenJDK Server VM (build 1.6.0-b09, mixed mode)

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• Office 2007 network share access denied

  - by Rodent43

  Hope I have not duplicated an issue already posted but I could not find anything from the search... Right here is the problem, we have recently updated all our desktops to the MS Office 2007 suite and people have issues trying to open simple files like word documents... the systems are Windows XP (SP3) Novell Network with novell client Office 2007 when they try to open a word document from a usual network share word presents a message reporting Access Denied Contact Administrator So we assumed network permissions, none of which have changed...so try the same file with Wordpad and it opens fine, be it with formating issues of course... Now copy the file to your desktop, which is not redirected, and you can open the file in word as normal... so does anyone know if office 2007 uses some new permission when opening files? does it create temps or something... any pointers would be appreciated

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• What are the necessary periodic checks for server?

  - by Edmund

  Hi all, I have some server which my team use for hosting internal applications for development purpose. I thinking of setting up some periodic checks but do now know how to go about it. Can advise on the following? Preferably windows bat file or linux script How to write a script that will check the content of a webpage to verify if it is down. How to write a script that will check if the website is down by pinging it How to write a script that will check the diskspace of the server is running out of diskspace. How to write a script that will email back to system administrator if either of the above tasks are not fulfilled?

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• Is it advisable to run Apache in a chroot jail?

  - by morpheous

  I have been advised by a sysadmin guy I know, to run Apache in a chroot jail, for increased security. I have the following questions: Is this advisable (i.e. are there any 'gotcha's that I need to be aware of) ? Does running Apache in a chroot jail affect its ability issues like performance and scalability? He also advised that I run my databases (mySQL and PostgreSQL), in separate chroot jails. Is this something that is often done in production systems

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• Can't Create New folder in my video folder

  - by tiki

  My OS is windows 7 Ultimate 32bit. My video folder location is C:\Users\User\Documents\Downloads\Video. I Can't create folder in the Video folder or see the files i saved. But I can see the files in the root location of the folder i.e by going to the folder from My Computer. I can create and find files when I go to the folder My Computer>C>Users>User>Documents>Downloads>Video. This is an unusual problem I have never seen. Even being a system Administrator I can't able to fix the problem. Please help me out. Thanks in advance

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• php rsync with exec() not working

  - by mojeime

  Why this: rsync -avz -e ssh /home/userneme/folder [email protected]:/var/www/folder works from cronjob and this: exec("rsync -avz -e ssh /home/userneme/folder [email protected]:/var/www/folder"); doesn't work. I know exec is working because i have a few places in my appp that do convercion from pdf to jpg with ImageMagick (exec). SOLVED exec is working OK it was a permission issue on remote server. "Local" server is shared reseller account and remote server is my first VPS Ubuntu 10.10 LAMP box. If only I had a system administrator since i'm just a software developer forced to do this and i stink at it :) Thank You all!

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• Cannot login to XP SP3 in VMWarePlayer virtual machine in safe mode

  - by Alper

  Hello, Here is my setup Host OS: XP SP3 Guest OS: XP SP3 (using VMWare) I checked the /SAFEBOOT option in System Config utility in guest for troubleshooting. Now the guest OS boots up in Safe Mode but I cannot login with my user id/password. Here is what I tried: [domainName]\[userid] for user name = Login Fails Administrator with blank password = Login fails Safe Mode with Networking = Login fails Safe Mode with Command Prompt = Login fails Last Known Good Configuration = starts in safe mode, login fails Start Windows Normally = starts in safe mode, login fails Don't have cd to get to the recovery console Any ideas?

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• Exchange 2010 - Trying to add an additional domain fails

  - by Tom Beech

  We're trying to add an additional domain to our existing exchange 2010 box. I'm doing this under our network administrator user which has pretty much every permission but i'm getting: VERBOSE: Connecting to EXCHANGE01.isd.isdevelopment.co.uk VERBOSE: Connected to EXCHANGE01.isd.isdevelopment.co.uk. [PS] C:\Windows\system32>new-AcceptedDomain -Name 'NewName' -DomainName 'newDomainaddress.com' -DomainType 'Autho ritative' Active Directory operation failed on DCSERVER01.isd.isdevelopment.co.uk. This error is not retriable. Additional inform ation: Insufficient access rights to perform the operation. Active directory response: 00002098: SecErr: DSID-03150BB9, problem 4003 (INSUFF_ACCESS_RIGHTS), data 0 + CategoryInfo : NotSpecified: (0:Int32) [New-AcceptedDomain], ADOperationException + FullyQualifiedErrorId : 282695C2,Microsoft.Exchange.Management.SystemConfigurationTasks.NewAcceptedDomain Any help will be appreciated. Tom

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• How to rename folder? Folder in use [closed]

  - by Colonel Panic

  Possible Duplicate: Deleting folders give access denied error message on Windows 7, although I am administrator I am trying to rename a folder, but apparently it is in use. I don't think it is. I'd like to rename my folder. How can I do that? This happens regularly, and at random, particularly in my music folder. I'd like to know the cause and fix that. Rather than workaround with some special tool whenever I want to rename a file.

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• Web hosting colo stack, what do i need

  - by james

  I'm looking to colocate a website, obviously running a few apache servers, mysql cluster, SAN servers and load balancer. What else do I need to protect the servers and what would be the best method for DNS as all the web side of things will be in the colo centre and email hosted with another company? Thanks in advance

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• Installed LAMP, but PHP does not seem to work

  - by Dave

  Hello, I did the yum install for apache, mysql, php, phpmyadmin. localhost/phpmyadmin displays correctly. I would assume PHP function correctly. I put my webpages in /var/www/html/test_site/index.php. This page contains phpinfo. But it does not display an echo"test"; What could be wrong Thanks Dave

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