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• How can I control wireless networks in Ubuntu without Network-Manager?

  - by Solignis

  Hi there, I recently installed Ubuntu on a laptop I got. I was having issues with the network manager just like I was having in my VM where it was not setting up the hostname correctly. Anyhow now I have a problem, since it is a laptop it will be moving.... But I have no way to discover new wireless networks. Anyway I can gain that functionality back? The problem I am running into is that I need to set the DNS search and domain for the machine so I can access my network but the network-manager was overriding the settings. Any help would be much appreciated.

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• Transferring DHCP using Windows Server Migration Tool - Why is Powershell is crashing on the import of the .mig file?

  - by Mike

  I am migrating DHCP from a windows server 2003R2 DC to a Windows Server 2008R2 DC I've followed this video and its predecessor (Installing Windows Server Migration Tools) http://technet.microsoft.com/en-us/video/migrating-dhcp-using-the-windows-server-2008-r2-migration-tools.aspx I went through everything smoothly until the last step. I have exported a .mig file with my DHCP configuration on the old 2003r2 server. I transferred this .mig file over to my 2008R2 server, when running the import command, it will appear to work for a minute or two and then I get a generic windows "Powershell has stopped working" error and I have to close the program. Under the problem details I see the following: FileVersionOfSystemManagementAutomation: 6.1.7600.16385 InnermostExceptionType: System.AccessViolationException OutermostExceptionType: System.AccessViolationException DeepestPowerShellFrame: unknown OS Version: 6.1.7600.2.0.0.272.7 LocaleID: 1033 Seems like there are permissions issues maybe? I am running powershell as an admin and am logged in to the server as a domain administrator. Any Ideas? Thanks

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• How much power supply do I need for my server, and could a shortage be causing my odd crashing?

  - by dolan

  I have 5 servers, all with similar hardware (i7, four 2tb 7200rpm drives, two 4tb 5400rpm drives, 430 watt power supply), and lately the machines have been freezing up. This has gotten worse in the last day or so, and I can't pinpoint any explanation. One recent change was adding the two 4tb hard drives. The crashes happen most often while running a large Hadoop job, so I was originally thinking the load was causing some issues, but last night one server just froze without any heavy load on the box (or so I think), other than HDFS (Hadoop's distributed file system) was probably rebalancing itself since two of the five nodes were offline. If I plugin a monitor and keyboard to one of these frozen machines, I can't get any response or feedback on the screen. Any ideas on possible points of failure and/or different logs I can look at to investigate? Thanks Edit: The systems are running Ubuntu 10.04 Edit 2: More on hardware: intel core i7-930 bloomfield 2.8ghz processor (quad core) 12gb (6 x 2gb) kingston ddr3 1333 ram antec earthwatts green 430 power supply msi x58m lga 1366 motherboard

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• Multiple SSL on same IP [closed]

  - by kadourah

  Possible Duplicate: Multiple SSL domains on the same IP address and same port? I have the following situation: first domain: test.domain.com IP: 1.2.3.4 Port: 443 SSL: Purchased from godaddy and specific to that domain Works fine no issues. I would like to add another site: test2.domain.com IP: the same Port: can be different SSL: different since I can't use the SSL above because it's specific to the site above. Now, when I add the HTTPS binding to the second site with IP:Port combination it appears to always load the first SSL ignoring the second certificate. How can I add second SSL binding to the same IP using a "different" certificate? Can this be done?

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• Dir and Findstr commands taking a long time to complete in Batch File

  - by user2405934

  dir %DRIVE_NAME%: /S /C /A-D /Q /T:C | findstr ".zip$ .doc$ .xls$ .xpt$ .cpt$ .cpo$ .xlsx$ .pdf$ .dat$ .txt$ .docx$ .csv$" >> file.info I am using above command to list all information in file, as below: 03/27/2013 01:02 PM 86,280 uusr\fr02 h123_frf67_rk_20140327.txt 03/27/2013 01:02 PM 5,513 usr\fr02 h123_frf67_rk_20140328.txt %DRIVE_NAME%: is mapped drive. Folders will be the same; not more than 100 folders and their sub-folders, and there will only be 2 or 3 files at time in any one of the folders. Now the issues is that for one folder it works perfect, but for 80 to 90 folders it is taking too much time. I think it's because of findstr and the different extensions used. Is there any way to make it faster?

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• Apache crashing at random intervals. Can not find a reason in log files

  - by Nick Downton

  We are having an issue with a VPS running plesk 9.5 on ubuntu 8.04 At seemingly random intervals Apache will disappear and needs to be started manually. I have checked the apache error log, /var/log/messages, individual virtual host apache error files and cannot find anything that coincides with the time of the failure. dmesg is empty which is a bit odd. We have also had the psa service go down for no apparent reason but apache stay up. I'm at a loss to diagnose this really because all the log files I can find do not point to any issues. Are there any others I can look at? Memory usage sits at about 55% (out of 400mb) and it isn't a particularly high trafficed server. Any pointers as to where else I can find out what is going on would be very much appreciated. Nick

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• How do we increase the maximum allowed HTTP GET query length in Jetty?

  - by Mike

  We are using Jetty to run an Apache Solr index. We've had some queries that have grown way beyond the previously expected maximum length, and are now having issues wehre most queries are not returning any data because the URL gets truncated. These requests are not being made through a browser, they're being made programmatically using the Apache_Solr_Service PHP library. The application is expecting queries to come in as HTTP GET requests, so simply switching to a POST will not solve this problem. How can we increase the maximum allowed HTTP GET query length in Jetty? Thanks!

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• "Cannot allocate memory" while no process seems to be using up memory

  - by omat

  I am not competent on server issues, any help is much appreciated. When try to start a python/django shell on a linux box, I am getting OSError: [Errno 12] Cannot allocate memory. free -m seems to confirm I am out of memory: total used free shared buffers cached Mem: 590 560 29 0 3 37 -/+ buffers/cache: 518 71 Swap: 0 0 0 But I cannot see what is eating up the memory with top or ps aux: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1 root 20 0 24336 908 0 S 0.0 0.2 0:00.68 init 2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd 3 root 20 0 0 0 0 S 0.0 0.0 0:04.85 ksoftirqd/0 How can I identify the leak? Thanks. BTW, I am not sure if it is relevant, but the machine I am talking about is an AWS EC2 instance with Ubuntu 12 running.

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• Windows 2003 SP1 terminal server printers Disappear after reboot - HP laserjet 4240

  - by Alex

  had working PCL6 laserjet 4240 driver. needed to downgrade to PCl5, tried but did not get clean install. tried again and it seemed to work (this is 2003 enterprise terminal server SP2) Have over 40 working laserjets (5, 4000, 4100 and 18 of the 4240) After normal nightly reboot the 18 4240 printers were 'gone'. Worked w/Microsoft who said bad HP driver issues - weird since they work on other terminal servers. downloaded latest version, etc. from HP site and can NOT get to work. As soon as I install, then do a Net Stop Spool and Net Start Spooler the printer is 'gone'. Current workaround is to use HP 4000 PCL5 drivers for all of these 4240 printers.

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• Check the disk for problems on Debian Lenny

  - by Equ

  Hi guys! I just bought a VPS hosting with Debian Lenny (I'm new to all this world). I've managed to install and setup everthing I need pretty well. My testing website works fast as expected most of the time, but sometimes it is really slow (response time is about 5-10 seconds). I checked everything and seems that there are may be some disk issues. How can I check the disk for problems/performance? What else could possible cause such a behaviour? Thank you!

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• Lotus Notes: Searching email by fields

  - by themel

  I'm using Lotus Notes 8.5.2 in a large corporate deployment. I'm trying to figure out how to search my email in a structured manner, e.g. by specifying criteria on fields. The help seems to suggest that I can use fields in square brackets and a list of operators, e.g. to find all mail where the From field contains John, I'd search for /[From] CONTAINS John However, I can't get this to work - any operator style query I've tried returns zero documents. "Web-style" queries (e.g. typing John into the search dialog) work, but I'd really prefer a way that would let me search more precisely. Potential issues: I'm assuming that the field names can be taken from the list of things I see when I open a mail and look at its Document Properties. Full text indexing is turned off for my mailbox, and all my attempts to create my own have failed. Does anyone have better information on searching by from/date/subject conditions in Notes?

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• Enterprise laptop doesn't recognize WiFi

  - by Michiel

  My cousin is using an enterprise laptop for home work, but for some reason she can't connect to her home WiFi. The laptop isn't able to detect any WiFi networks, although she used to be able to detect and connect to the network. Whenever I troubleshoot for possible issues, Windows Vista is telling me the switch for wireless reception is turned off, but I'm sure it's turned on (If I turn it on, the HP Wireless Assistant tells me it's turned on, so...). But if I take a look at the settings, I get this message (sorry it's in Dutch): So for some reason, the WLAN reception is deactivated and I cannot activate this... Does this have something to do with the laptop being an enterprise laptop? Or is there a simple setting I missed? The most recent driver of the Wireless Network Card (Intel Wireless 5100) is installed.

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• Sonicwall Global VPN Client fails to connect, despite successful connections from other computers from behind the same router

  - by JesperE

  I've recently been unable to connect to our Sonicwall VPN at work. The Sonicwall client is stuck on "connecting", and the log says "The peer is not responding to phase1 ISAKMP requests". The weird thing is that this is not an issue with my own PC, only my work laptop (Lenovo W530 running Windows 7 64-bit), and this has only appeared recently. This ought to rule out any problems with my ISP blocking VPN, or issues with the router itself. My company's IT department says that they cannot see anything in their logs when I'm trying to connect. My conclusion is that something is wrong on the laptop itself. Disabling the firewall does not help. Can the VPN connection be blocked in other ways? What should I be looking for? EDIT: This problem has "magically" disappeared, without any changes done in my network. I can only assume that this was caused by some network glitch with my ISP.

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• Multiple .bkf files created in Backupexec 12.5 or 2010 related to heavy I/O?

  - by syuusuke

  Hey everyone, I was wondering if anyone who has used backupexec 12.5 or 2010 have ever experienced multiple .bkf files created for a single job. To describe what I mean by multiple files, the .bkf are being created with random file sizes under 2GB even though I've assigned the setting to chop the file after 10GB size. Some jobs will create 20x .bkf files in 1 job with file chunks ranging from 50MB to 800MB sizes. Is this is a sign of heavy I/O issues? Bandwidth limitations? I'm not sure, I'm here to seek some advices and suggestions. I've setup another backup server with the same exact settings and they seem to create a new .bkf file when 10GB limit has been reached. Although I am backing up different machines but I know my settings are an exact match to the problematic or atleast I think it's a problem.

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• SSL 3.0 warning in Chrome on Ubuntu 10.04LTS

  - by Leopd

  I'm running Apache2 with SSL on Ubuntu 10.04LTS. Chrome gives me this annoying warning when I inspect the certificate: The connection had to be retried using SSL 3.0. This typically means that the server is using very old software and may have other security issues. The relevant part of the apache config looks like: SSLEngine on SSLCertificateFile /etc/ssl/... SSLCertificateKeyFile /etc/ssl/... SSLCACertificateFile /etc/ssl/... SSLProtocol -all +SSLv3 +TLSv1 The last line I added to try to address this problem, but it's not working. Any advice on properly enabling TLS?

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• Need hard disk recommendation for linux home server.

  - by neotracker

  Hello, I'm planing to build a little linux homeserver. It will mainly be used for storage and maybe as an media pc. I plan to build a software raid5 with 4 1.5TB or 2TB hard drives. I already decided to use the Western Digital Caviar Green 1.5 TB drive, but then I read about some problems with the WD green series about many drives failing and that they are not recommended for raid anyway. Of course, I couldn't find much facts on the issues so I thought I just ask here ;-) What hard drives would you recommended for a software raid5 setup? As I only need it for storage, the whole thing doesn't have to be too fast. So I prefer a cheap price and silence to great performance.

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• Server downtime - are these APC warnings the cause?

  - by DisgruntledGoat

  Yesterday I had a problem with my dedicated server (Ubuntu 10.04, LAMP). It wasn't down per se, but running incredibly slowly as if we had a massive overload of visitors (though I don't think we did). It's running smoothly again now. I've been checking through log files etc to see if I can find any issues, the only strange thing is a bunch of these errors, occurring at about the same time as the downtime: [apc-warning] Unable to allocate memory for pool. in [file] on line 49. And a bit later on: [apc-warning] GC cache entry '[file1]' (dev=2056 ino=8988092) was on gc-list for 3601 seconds in [file2] on line 746. Could these errors indicate the cause of the server slowdown, or are they simply a result of the server being slow in the first place? What would be the solution?

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• Finding Locked Out Users

  - by Bart Silverstrim

  Active Directory up to 2008 network (our servers are a mix of 2008, 2003...) I'm looking for a quick way to query AD to find out what users are locked out, preferably from a batch or script file, to monitor for possible issues with either user accounts being attacked by an automated attack or just anomalies in the network. I've Googled and my Google-fu has failed; I found a query off Microsoft's own knowledgebase that cites a string to use on Server 2003 with the management snap-in's saved queries (http://support.microsoft.com/kb/555131) but when I entered it, the query returned 400 users that a spot-check showed did NOT have a checkmark in the "Account is locked out" box under "account." In fact, I don't see anything wrong with their accounts. Is there a simple utility (wisesoft bulkadusers apparently uses this method behind the scenes, since it's results were also wrong) that will give a count of users and possibly their user object names? Script? Something?

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• ProFTPd: Multiple Domain VirtualHosts on one IP address

  - by Badger

  I have a webserver that we are giving a consultant FTP access to. For one domain hosted on that server he needs access to a "dev" directory and for a different domain hosted on that server he needs access to a different directory. I am trying to set this up with VirtualHosts, but I am having issues. Here is the VirtualHost bit of my proftpd.conf file: <VirtualHost www.example2.com> ServerName "Example 2" DefaultRoot /var/www/example2/dev </VirtualHost> <VirtualHost www.example1.com> ServerName "Example 1" DefaultServer on DefaultRoot /var/www/example1 </VirtualHost> When I FTP to either domain I always get the first VirtualHost, even if I FTP to the second domain.

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• Windows 7 login automically puts "IIIII....." in password, so it is impossible for me to login?

  - by xaisoft

  I have no idea why this is happening. I have ran multiple malware programs, I have run anti-virus programs, I even restored to an early point in time. The keyboard letter "I" doesn't appear to be stuck, I am using an external keyboard by the way. When I reboot the computer and get to the login screen, when I press ctrl-alt-del to login, it the password textbox starts putting "IIIIIIIIIIII......", it only stops when I bang on the keyboard. I also noticed at one point that my caps lock on turned caps off and caps lock off turned caps on and some other weird behavior. I have tried search online for similar issues, but no luck.

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• Computer temporarily freezes and then resumes

  - by trizicus

  This happens on ALL operating systems (7, Ubuntu, etc.). What happens is everything for 1-3 seconds becomes unresponsive, I then hear what sounds like my other internal hard drive 'spinning up', and then viola everything is responsive again. Note: Already ran SMART tests, no issues at all. I think issue is that the HDD spins down and when need it gets 'turned-on' (OS settings turn off HDD's after 20 mins of inactivity) and because my pagefile is on the other HDD it causes OS to temporarily freeze. Need more tips, and insight. Thanks More info: Running Quad CPU, 4GB RAM, Intel SSD, GT 240.

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• remove apache tar binary package in centos

  - by user119720

  I need help in removing binary package that had been installed in my linux machine. The scenario that I am having are such as like this: I've already install latest apache that I get from its website(httpd.apache.org) through Unix binary package(tar.gz) After successfully install program,the apache server web perfectly without any issues. But then I having a thought,if there are another latest release version of apache in the future,then I need to make sure that i can upgrading current apache or reinstalling the new version apache. So my question is, how do I ensure that I have remove the old remove apache and all its dependencies so that it will not having conflict(probably) when installing the new apache. Right now the only thing that i can think of is to remove all the apache folder manually : rm -rf /apache2 Hope someone can shed some light about this.Thanks.

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• How do you explain ethernet cable problems to non networking people?

  - by Bryan McLemore

  We've recently been doing a large network migration in our datacenter. We've had a few cables in this start to deliver really bad pings (in excess of 500ms on a LAN) before they could be replaced. The cables we were replacing weren't made the best. They where all hand made and the runs were so short on some of them that the bend radius was definitely too tight. Some of them ran in bundles right in front of the heat exhaust of the power supplies. The cables were running ok until we started pulling the ones surrounding them out. Then a few started having the problem I mentioned above degrading performance and causing reliability issues. I'm trying to figure out the best way to explain this to non networking people. Is there any documentation that people could recommend or other methods?

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• routing weirdness - traceroute 'vanishes' en route

  - by The Journeyman geek

  I'm attempting to set up one of my boxes as a server (again), but i'm having some odd connection issues- the box itself connects fine to the internet, but trying to connect to my external ip address seems to result in the trace getting 'lost' partway. http://pastebin.com/HCQAGbvn - this is a traceroute from another system that's connected to another ISP - starhub is my own one, while i have another system that i have access to on singtel. I'm wondering if my ISP is messing around with routing, or is something very odd going on. As you note, the traceroute dosen't reach me, but if it helps, i use a dd-wrt router. edit: Facepalmishly, turning the firewall on my router on and off fixed it. I don't get why it dropped off at different ip addresses each time, or why the router set it self to block.. everything, or why it affected the ipv6 tunnel as well.

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• Laptop loses signal from WiFi router, but mobile phone holds it fine

  - by Anton

  Hi, I have an extremely weird issue with my WiFi router. Both Ubuntu & Windows 7 can connect to it fine, but after 5-10 minutes browser (any one) stops opening pages and tells me it cannot resolve host address. But, at the same time, tools like Skype or BitTorrent work without any issues. I can also browse Internet on my mobile phone connected to the very same router. If I reset router it helps, but after 5-10 minutes I see just the same problem... Ubuntu tells me that WiFi signal is lost (mobile sees it), Windows 7 just won't let me browse anywhere. Can anyone give me a suggestion on this, please? Thanks

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