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  • Returning "200 OK" in Apache on HTTP OPTIONS requests

    - by i..
    I'm attempting to implement cross-domain HTTP access control without touching any code. I've got my Apache(2) server returning the correct Access Control headers with this block: Header set Access-Control-Allow-Origin "*" Header set Access-Control-Allow-Methods "POST, GET, OPTIONS" I now need to prevent Apache from executing my code when the browser sends a HTTP OPTIONS request (it's stored in the REQUEST_METHOD environment variable), returning 200 OK. How can I configure Apache to respond "200 OK" when the request method is OPTIONS? I've tried this mod_rewrite block, but the Access Control headers are lost. RewriteEngine On RewriteCond %{REQUEST_METHOD} OPTIONS RewriteRule ^(.*)$ $1 [R=200,L]

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  • Debugging COM+ applications

    - by cc0
    I have a number of separate COM+ applications that I have to figure out; The COM+ applications respond to a number of scheduled tasks, and I need to know which COM components within which applications are being used when I execute each of these tasks. It is easy to figure out what (if anything) goes wrong in the event log, but as I am working on testing each components compatibility with the others; I need to know which ones I have actually tested by executing the scheduled tasks. Does anyone have some useful tips here? I've been looking into the sysinternals tools, and specifically processmonitor, but I have not found a way to make it monitor the COM+ applications yet. (I initially started this question here, but realized it's probably more suited for serverfault)

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  • Disadvantages of using a swap file/partition on an SSD, even when swappiness is set to 0

    - by pjv
    What are the disadvantages of using a swap file/partition on an SSD, even when swappiness is set to 0 I'm particularly interested in the /proc/sys/vm/swappiness=0 case. How much writes are still done, in practice, to that swap file, and does it have a negative impact to the SSD or any other disadvantage? Or would it nearly compare to not having a swap file? I am pretty aware of what swappiness=0 means, just not of what it amounts to in practice. My question stems from a problem I am experiencing without a swap: http://stackoverflow.com/questions/4567972/error-executing-aapt-all-of-the-sudden. There are similar questions regarding SSD and swap but they don't go in-depth into the swappiness=0: Disadvantages of not having a swap partition, Should I keep my swap file on an SSD drive?

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  • Apache trailing slash added to files problem

    - by Francisc
    Hello! I am having a problem with Apache. What it does is this: Take /index.php file containing an code with src set to relative path myimg.jpg, both in the root of my server. So, www.mysite.com would show the image as would www.mysite.com/index.php. However, if I access www.mysite.com/index.php/ (with a trailing slash) it does the odd thing of executing index.php code as it would be inside an index.php folder (e.g. /index.php/index.php), thus not showing the image anymore. This is a simple example that's easy to solve with absolte addressing etc, the problem I am getting from this a security one that's not so easily fixed. So, how can I get Apache to give a 403 or 404 when files are accessed "as folders"? Thank you.

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  • Putty freezes at random when logging into a remote machine in another continent

    - by artknish
    I have to ssh to a remote machine in Europe from Asia every day for my work. But Putty freezes sometimes at totally random times and I have no choice but to close and re-open a new ssh session. It's frustrating especially when I'm editing something or executing a long running program. I know the question really doesn't have much details ('cause nothing seems to be wrong with the network at all). Has anyone experienced this sort of issue with Putty and had resolved it? Thanks for your time!

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  • "Tail" a logstash server query

    - by phatmanace
    Assuming I have a logstash server chocked full of logs being loaded regularly, is there a reasonably elegant way that I can tail the results of a continuously executing query on the logstash server and show this in a terminal window e.g some-special-logstash-command.sh | egrep -v "(searchword1|searchword2)" the idea being that the command pipes stuff out of logstash and to my grep query that filters and shows me the filtered output for. .. of course if there is a logstash command that can do the grep piece for me as well, then that works too :) motivation for doing this, is that assuming all of my events from my estate is being loaded into logstash, then would be nice to have a terminal window with a continuous tail of interesting events as they occur scrolling past the screen. -Ace

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  • Authentication error in LTSP client

    - by sat
    I am building a LTSP server with LDAP authentication for LTSP Clients. I have configured LDAP server also. When I try to login from LTSP client in GUI, I am getting No response from server, restarting. Then, It's restarting the GUI and comes to the login screen again. I thought that there could be a problem with LDAP authentication. But, When I try to login from Alt+Ctrl+F1 terminal in LTSP client, it is logged in successfully with LDAP user. LDAP Server and authentication is working fine. Even, after executing the below commands, still I am getting the same error. ltsp-update-sshkeys ltsp-update-kernels ltsp-update-image --arch i386 Whether I need to configure anything for GUI login from LTSP Client? How to fix this issue?

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  • Files copying between servers by creation time

    - by driftux
    My bash scripting knowledge is very weak that's why I'm asking help here. What is the most effective bash script according to performance to find and copy files from one LINUX server to another using specifications described below. I need to get a bash script which finds only new files created in server A in directories with name "Z" between interval from 0 to 10 minutes ago. Then transfer them to server B. I think it can be done by formatting a query and executing it for each founded new file "scp /X/Y.../Z/file root@hostname:/X/Y.../Z/" If script finds no such remote path on server B it will continue copying second file which directory exists. File should be copied with permissions, group, owner and creation time. X/Y... are various directories path. I want setup a cron job to execute this script every 10 minutes. So the performance is very important in this case. Thank you.

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  • "shell not found" on start of backtrack 5

    - by Jor-el
    I am using backtrack5 in VMware on my system. I was trying to change my default shell to ksh. After executing the 'chsh' command. On restarting the OS, it shows "Cannot execute ksh: no such file or directory", which apparently because of giving a bad path while changing shell. Because of this I am not able to start the OS, as I have no terminal to interact with (cannot start the GUI). Now I need to restore the previous shell, but I don't have any access to the terminal. Thanks for the help.

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  • Why can't I install MySQL on my computer?

    - by Bea
    I have read a lot of tutorials, but I am still having problems. What I tried: I downloaded mysql-5.5.9-winx64. All that I read says that I can run Setup.exe, but there is no such file in the download. The other option I know there is, is including \mysql-5.5.9-winx64\bin in the PATH variable and then trying to execute the mysql command. When I do that, the error I get is: ERROR 2003 (HY000): Can't connect to MySQL server on 'localhost' (10061) I then downloaded mysql-5.5.9-winx64.msi, which is easier to install, but once I followed the instructions and it was installed, I got the same error executing the mysql command. How can I use MySQL? EDIT: I've now removed everything I installed, and I want to start from scratch.

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  • How can I remove unwanted cropped pages from Acrobat

    - by Servant
    Executing the crop command in Acrobat from a 3000pt * 2000pt document to 1500pt*1800pt only hides the document outside of the new boundaries but the original document still remains without change; if anyone uses the touch-up tool and moves the content, all "hidden" information outside the cropped page may appear again by dragging it into view. The page acting as a window (or a mask) to display the 3000pt * 2000pt. I am wondering if there is a solution to crop permanently the document without reprinting it again into PDF file? Please find pictures attached: http://i.stack.imgur.com/5JTPg.png http://i.stack.imgur.com/HPokv.png

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  • How can I get rsync to ignore missing files?

    - by Joe Casadonte
    I'm executing a command like the following to several different systems: $ rsync -a -v [email protected]:'/path/to/first/*.log path/to/second.txt' /dest/folder/0007/. Sometimes *.log does not exist, and that's OK, but rsync generates the following error: receiving file list ... rsync: link_stat "/path/to/first/*.log" failed: No such file or directory (2) done Is there any way to suppress that? The only way I can think of is to use include and exclude filters, which just seem a PITA to me. Thanks!

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  • Giving SSH access to a user, and security issues.

    - by Kris Sauquillo
    Okay, so I have a VPS and I made an account for a friend so he can host his own domains (using the reseller features in DirectAdmin). He's asking for SSH access, and I know that this is probably a bad idea. Does he have access to my whole server, such as executing commands, accessing my domains that I host on my server? I logged into my SSH using his account details and it let me navigate around all of the root folders/files, and his account is under /home/AccountName/. Is there anyway to restrict his access to his folder only? And the commands he can use?

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  • Running a script at startup as root?

    - by Usman Ajmal
    Hi i developed a script which I set to run at startup i.e. when the Desktop appears. In the script I mounted a partition using sudo mount /dev/sda1 /mnt &> result.txt After executing script a file named result.txt was created which contained sudo: no tty present and no askpass program specified In other words the mounting failed. If I run the script using sudo ./myProgram i don't face this problem and the drive gets mounted successfully. Any suggestions please....

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  • What does *:* in netstat output stands for?

    - by chello
    While executing the command /usr/sbin/lsof -l -i -P -n under root user, I am getting this output. COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME ... httpd 9164 70 3u IPv4 0x2f70270 0t0 TCP 127.0.0.1:9010 (LISTEN) httpd 9164 70 4u IPv6 0x25af4bc 0t0 TCP *:80 (LISTEN) httpd 9164 70 5u IPv4 0x3149e64 0t0 TCP *:* (CLOSED) httpd 9180 70 3u IPv4 0x2f70270 0t0 TCP 127.0.0.1:9010 (LISTEN) httpd 9180 70 4u IPv6 0x25af4bc 0t0 TCP *:80 (LISTEN) httpd 9180 70 5u IPv4 0x3149e64 0t0 TCP *:* (CLOSED) Please let me know what does *:* stands for? I am interested to know both the ipaddress and port fields. Also what does (CLOSED) mean here?

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  • How do I remotely run a Powershell workflow that uses a custom module?

    - by drawsmcgraw
    I have a custom Powershell module that I wrote for various tasks. Now I want to craft a workflow whose activities will use commands from the module. Here's my test workflow: workflow New-TestWorkflow{ InlineScript { Import-Module custom.ps1 New-CommandFromTheModule } } Then I run the workflow with: New-TestWorkflow -PSComputerName remoteComputer When I do this, the import fails because it can't find the module. I imagine this is because the workflow is executing on the remote machine, where my module does not exist. I can see myself running this across many machines so I'd really rather not have to install this module and maintain it on all of the machines. Is there some way to have my module in a central place and use it in workflows?

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  • Sql database dumps failing every night

    - by chaseman36
    Hey guys, I have sql05 and my maintenance plan which backs up a database to an external storage SAN, has been failing every night. Here is my error: Executing the query "BACKUP DATABASE [master] TO DISK = N'\\192.168.x.x\vmbackup\server\dbbackup\master_backup_201004222300.bak' WITH NOFORMAT, NOINIT, NAME = N'master_backup_20100422230002', SKIP, REWIND, NOUNLOAD, STATS = 10 " failed with the following error: "Cannot open backup device '\\192.168.x.x\vmbackup\server\dbbackup\master_backup_201004222300.bak'. Operating system error 5(Access is denied.). BACKUP DATABASE is terminating abnormally.". Possible failure reasons: Problems with the query, "ResultSet" property not set correctly, parameters not set correctly, or connection not established correctly. I googled this error and tried adding permissions to the backup device for network service as recommended at experts exchange, no dice. Does anyone have any ideas?

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  • batch file to disable network share on Windows XP

    - by Robb
    Loosely related to this question Network Share causing Cygwin to run slowly after 'ls', I'd like to write a little batch file that I can execute to disconnect the host from any network shares and subsequently another batch file to reconnect. Ideally, this would be something that I can execute from a PuTTY terminal, SSHed into the box running cygwin. I'm pretty sure the batch files can be written easily, but I don't know about executing them from a PuTTY terminal. Regardless, I'd still like the batchfiles anyways. For the sake of simplicity my process would be: Log into server via PuTTY Run batch files to disconnect shares Do what I need to do Run batch files to reconnect shares Exit session, closing PuTTY

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  • Iptables to lock down compromised server to a single ip

    - by ollybee
    I have a Linux server which is compromised, I can see nasty looking perl scripts executing with root privileges. I want to get some data off it before I wipe it. How can I block all inbound and outbound traffic except for my ip? It's a Centos server I assume i can do this with iptables? I'm aware a the server is rooted there is a possibility that attackers could have made changes on the server that would prevent this from working. Ill be testing to make sure and only have the server online for a couple of hours before it is nuked.

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  • a safer no password sudo?

    - by Stacia
    Ok, here's my problem - Please don't yell at me for being insecure! :) This is on my host machine. I'm the only one using it so it's fairly safe, but I have a very complex password that is hard to type over and over. I use the console for moving files around and executing arbitrary commands a LOT, and I switch terminals, so sudo remembering for the console isn't enough (AND I still have to type in my terrible password at least once!) In the past I have used the NOPASSWD trick in sudoers but I've decided to be more secure. Is there any sort of compromise besides allowing no password access to certain apps? (which can still be insecure) Something that will stop malware and remote logins from sudo rm -rf /-ing me, but in my terminals I can type happily away? Can I have this per terminal, perhaps, so just random commands won't make it through? I've tried running the terminal emulations as sudo, but that puts me as root.

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  • WIndows Hosted Network

    - by Nandakumar V
    I have created a hosted network in my windows7 system. The netsh wlan show hostednetwork command gives the output Hosted network settings ----------------------- Mode : Allowed SSID name : "rambo" Max number of clients : 100 Authentication : WPA2-Personal Cipher : CCMP Hosted network status --------------------- Status : Started BSSID : xx:xx:xx:xx:xx:xx Radio type : 802.11n Channel : 11 Number of clients : 1 xx:xx:xx:xx:xx:xx Authenticated But I have forgot the password for this connection and after some googling I found the command netsh wlan refresh hostednetwork YourNewNetworkPassword. But on executing this command it get the error C:\Users\user>netsh wlan refresh hostednetwork rambo123 Invalid value "rambo123" for command option "data". Usage: refresh hostednetwork [data=]key I have no idea what is wrong with this command.

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  • Why can't I install MySQL on my computer? [closed]

    - by Bea
    I have read a lot of tutorials, but I am still having problems. What I tried: I downloaded mysql-5.5.9-winx64. All that I read says that I can run Setup.exe, but there is no such file in the download. The other option I know there is, is including \mysql-5.5.9-winx64\bin in the PATH variable and then trying to execute the mysql command. When I do that, the error I get is: ERROR 2003 (HY000): Can't connect to MySQL server on 'localhost' (10061) I then downloaded mysql-5.5.9-winx64.msi, which is easier to install, but once I followed the instructions and it was installed, I got the same error executing the mysql command. How can I use MySQL? EDIT: I've now removed everything I installed, and I want to start from scratch.

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  • Solr on Tomcat (Ubuntu OS) installation help

    - by Camran
    I have to install Solr on my Ubuntu Server. However, Solr wont work without Tomcat or another container, and also Java. I have successfully installed tomcat6 and java. BUT, in a tomcat6 guide online, it says I should configure iptables to allow connections via port 8080, which I have done. Then the guide says I can test the tomcat6 by going to: http://my_ip_adress:8080 But this makes the browser just load and wait somehow for a response, and finally display "website not available". I have NO clue how to install Solr with Tomcat. Does anybody know how? How do I know Tomcat6 works? BTW: When I do this: /etc/init.d/tomcat6 start then it says OK. If you need something let me know, I really need help with this one. Thanks UPDATE: When executing this: sudo /etc/init.d/tomcat6 status it respons is Tomcat servlet engine is running with pid 28641

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  • How to select a user and remove all groups they are a member of using Powershell (with Quest)?

    - by Don
    I've read quite a bit online about this and thought I had found a solution, but it doesn't seem to be working like I would expect. I am wanting to get a user based on the username I input, then remove all groups that it is a member of. Basically the same thing as going into ADUC, selecting the user, selecting the Member Of tab, highlighting everything (except domain users of course) and selecting remove. Here's the command I'm trying to use: Get-QADUser -Name $username | Remove-QADMemberOf -RemoveAll Others have said online that it works for them, but so far it hasn't for me. It doesn't give an error, it accepts the command just fine, but when I look in ADUC, the groups are still there for the user. Any suggestions as to what I may be doing wrong? Executing from Windows 7 with domain admin rights, Exchange cmdlets and Quest snapin loaded. Thanks!

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  • cygwin Xserver losing connection

    - by gt6989b
    I am running Xserver on cygwin (on top on Windows 7), and then using xterm to remote to linux via ssh -X, and run remote applications there, like konsole, emacs and others. Initially all works fine, e.g. executing emacs pops up the correctly working window on my Windows 7 box. But if I try to run the same emacs some time (like an hour) later, I get a linux message Display localhost:10.0 unavailable, simulating -nw and emacs runs in-line. I have checked and the Xserver seems still up and running ok. Indeed, if I exit out to the original cygwin and reconnect to Linux by ssh -X again, it works just fine. Would you know what is happening and how can it be fixed? Why is my Xserver connection being dropped? Thank you very much.

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