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• Webmin / Virtualmin running php as www-data, is locked out of viewing .htaccess and writing

  - by Kirill

  I've asked this on the virtualmin forums, but haven't had any help from there. Recently, "something" happened and it seems that the apache service has gone a bit weird. What it does: it runs all apache traffic as www-data and sometimes spawns the php5-cgi process as www-data, this is a problem because all the domain users own their directories and default permissions don't let www-data write to these folders (file uploads are dead) or read .htaccess (permalinks are broken in wordpress). I've googled this for about a week straight now, tried pretty much everything I could find and achieved nothing. The only thing that I think might actually be the cause of all this is this page: http:// - i.imgur.com/NYW3x.png (got shut down by the spam filter) So I figured if I set it to "default", this might magically start working again, but all it does is "crash" apache (all websites timeout). I figure it's something to do with the "mpm" module or something, but I can't find anything relevant in the settings to modify for it to work. Can someone please point me in the right direction? System info: Webmin version 1.580 Kernel and CPU Linux 2.6.35.4-rscloud on x86_64 Virtualmin version 3.90.gpl GPL Ubuntu 10.04 LTS (Lucid) A couple screenshots of top http://i.imgur.com/U2DTK.png http://i.imgur.com/sNPKs.png

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• Vagrant ssh fails with VirtualBox

  - by lukewm

  vagrant up fails when it gets to the ssh part: myterminal$ vagrant up [default] VM already created. Booting if its not already running... [default] Running any VM customizations... [default] Clearing any previously set forwarded ports... [default] Forwarding ports... [default] -- ssh: 22 => 2222 (adapter 1) [default] -- db2: 30003 => 30003 (adapter 1) [default] Cleaning previously set shared folders... [default] Creating shared folders metadata... [default] Booting VM... [default] Waiting for VM to boot. This can take a few minutes. [default] Failed to connect to VM! Failed to connect to VM via SSH. Please verify the VM successfully booted by looking at the VirtualBox GUI. Then when I subsequently try and connect using vagrant ssh or vagrant reload or similar, I get this: myterminal$ vagrant reload [default] Attempting graceful shutdown of linux... SSH connection was refused! This usually happens if the VM failed to boot properly. Some steps to try to fix this: First, try reloading your VM with `vagrant reload`, since a simple restart sometimes fixes things. If that doesn't work, destroy your VM and recreate it with a `vagrant destroy` followed by a `vagrant up`. If that doesn't work, contact a Vagrant maintainer (support channels listed on the website) for more assistance. Please help! I'm really stumped. Kind regards, Luke

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• Apache2 - mod_rewrite : RequestHeader and environment variables

  - by Guillaume

  I try to get the value of the request parameter "authorization" and to store it in the header "Authorization" of the request. The first rewrite rule works fine. In the second rewrite rule the value of $2 does not seem to be stored in the environement variable. As a consequence the request header "Authorization" is empty. Any idea ? Thanks. <VirtualHost *:8010> RewriteLog "/var/apache2/logs/rewrite.log" RewriteLogLevel 9 RewriteEngine On RewriteRule ^/(.*)&authorization=@(.*)@(.*) http://<ip>:<port>/$1&authorization=@$2@$3 [L,P] RewriteRule ^/(.*)&authorization=@(.*)@(.*) - [E=AUTHORIZATION:$2,NE] RequestHeader add "Authorization" "%{AUTHORIZATION}e" </VirtualHost> I need to handle several cases because sometimes parameters are in the path and sometines they are in the query. Depending on the user. This last case fails. The header value for AUTHORIZATION looks empty. # if the query string includes the authorization parameter RewriteCond %{QUERY_STRING} ^(.*)authorization=@(.*)@(.*)$ # keep the value of the parameter in the AUTHORIZATION variable and redirect RewriteRule ^/(.*) http://<ip>:<port>/ [E=AUTHORIZATION:%2,NE,L,P] # add the value of AUTHORIZATION in the header RequestHeader add "Authorization" "%{AUTHORIZATION}e"

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• Setting up SQL Server 2005 to use all available memory in 32bit Windows Server 2003 - and verifying

  - by Rizwan Kassim

  There are a number of questions along this line - but they either sometimes contradict each other, or don't show how to properly verify that everything is actually working - hopefully this can be comprehensive... I'm running SQL Server 2005 SP3 Standard on Windows Server 2003 R2 Standard. My server has 8GB of memory installed - my system is almost entirely used as a Database Server - there are some services running on them, but the OS + services can run within 1Gb of RAM. What I've done (please tell me if I'm doing something wrong): /3GB in the boot.ini. (To increase the amount of user-space memory available - info) /PAE in the boot.ini. (Windows claimed to be doing PAE even without this switch, somethow.) Enabled AWE in SQL Server. Enabled Lock Pages in Memory Option for users SYSTEM and Local Service. (info). SQL Server Standard doesn't seem to use this until Cumulative Update 4, which isn't installed on my server. (info) Set Min/Max Memory to : 1024Mb/5112Mb After doing all the above, we definately saw a level of improvement - but I'd like now to verify my settings, make sure that I'm making full use of the memory available. (There appeared to be a slowdown when max = 7Gb, so I edged off from that value, but it might have been just perceptual.) To verify, I checked the following levels in PerfMon : Process(sqlserv):Working Set : 76386304 SQL Server(Memory Manager) : Total Server Memory : 3538944 (I saw a doc that noted that this wasn't the full memory used by SQL Server, so I'm not sure whether to trust it) So -- my questions... Should my max be around 7Gb? If not, what should it be? Why is total server memory at 3.5G, when it's been allocated 5G? What is the proper metric for the amount of memory allocated to SQL Server? The Working Set seems a bit large... Am I possibly missing any steps in the setup? Any recommended resources on starting to tune the caching system now? Thanks

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• Why can't “knife data bag from file” find existing json file on chef server?

  - by ellisera

  Summary: I'm running into a problem with "knife data bag from file", where knife doesn't recognize the .json data bag file pulled down from a remote git repo. Background: I'm currently trying to transition from chef-solo use to chef server while using the cookbooks, data bags and other chef info from our remote git repo. I've currently pulled down a copy of our git repo and set the cookbook path and data bag path in knife.rb. I also loaded the cookbooks, made adjustments, etc. Details: When trying to load our .json data bags by doing "knife data bag add from file FOLDER FILE" it looks like it worked until I do "knife data bag list" and it comes up blank. So I decided to try adding the edit option at the end to see what's being loaded, if it is. This is the error I get: knife data bag from file local_settings test.json -e nano ERROR: Could not find or open file 'test.json' in current directory or in 'data_bags/local_settings/test.json' The data bag file does exist, in the proper location, in a tested, working json file. I've also sometimes gotten an error saying "could not open data bag "local_settings". I would obviously like to keep the data bag path within the appropriate git repo folder to be able to keep track of changes in a more centralized location (our git repo, as opposed to the chef server). Any solutions, advice or pointers in the right direction are appreciated.

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• Throttling Postfix memory

  - by teddybeard

  I have a VPS on 1and1 similar to this configuration (512MB, burst up to 2GB). I run a web service where I crawl the web and notify my users through email and sms when a certain online data feed changes. When I send the emails out, I just have PHP loop through the recipients list and send the emails out using the mail() function. Whenever I try to send a large volume of these messages out, my server starts acting funny. I can't even run an 'ls' sometimes because the shell tells me it 'cannot allocate memory'. The shell is unusable and yet my website is being served up fine. Mail.err contains: Nov 14 17:30:09 s15351477 postfix/smtp[26000]: fatal: inet_addr_local[getifaddrs]: getifaddrs: Cannot allocate memory Nov 14 17:30:09 s15351477 postfix/sendmail[25999]: fatal: username(1000): unable to execute /usr/sbin/postdrop -r: Success Nov 14 18:29:14 s15351477 postfix/smtp[9911]: fatal: inet_addr_local[getifaddrs]: getifaddrs: Cannot allocate memory Nov 14 18:29:14 s15351477 postfix/sendmail[9910]: fatal: username(1000): unable to execute /usr/sbin/postdrop -r: Success Also, if relevant, my bean counters are: Version: 2.5 uid resource held maxheld barrier limit failcnt 53907331: kmemsize 20779422 21041560 31457280 34603008 2989403 lockedpages 0 0 512 512 0 privvmpages 81488 82498 524288 576716 94640 shmpages 2831 2831 32768 32768 0 dummy 0 0 9223372036854775807 9223372036854775807 0 numproc 90 91 128 128 6603 physpages 32692 33531 2147483647 2147483647 0 vmguarpages 0 0 131072 2147483647 0 oomguarpages 32942 33781 9223372036854775807 2147483647 0 numtcpsock 22 23 720 720 0 numflock 27 28 376 413 0 numpty 1 1 32 32 0 numsiginfo 0 1 512 512 0 tcpsndbuf 425888 441064 3440640 5406720 0 tcprcvbuf 369200 376832 3440640 5406720 0 othersockbuf 268000 268464 2252160 4194304 0 dgramrcvbuf 0 8472 524288 576716 0 numothersock 180 182 720 720 0 dcachesize 952146 966231 5242880 5767168 0 numfile 3609 3683 8192 8192 0 dummy 0 0 0 0 0 dummy 0 0 0 0 0 dummy 0 0 0 0 0 numiptent 25 25 200 205 0 Is there some way I can throttle postfix to keep it from swamping the system like this? Also wondering: why does email use so many resources, these emails are just short text?

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• HTTP Error 503 - Service is unavailable (how fix?)

  - by SilverLight

  i have a web site for download mobile files and there many users in my web site. sometimes i have the error below : HTTP Error 503 - Service is unavailable 1-so why this error happens and what is that mean? 2-as i know appache free up itself when it's oveloaded, but what about iis? how can i put some limitations in my server (i have remote access to my server) for prevent this error happening? a.is limitation of dowload's speed efficient for prevent that error's occur? how can i do that? is squid useful for this job or i can do that with another iis extension. b.is limitation of download's Bandwidth efficient for prevent that error's occur? how can i do that (with iis or another extension)? in right side of iis - configure area - i found some limits. what do those limits mean and can i use them for keep my server alive all the time? EDIT: after viewing event viewer of windows - custom views - server rols - web server (iis) i figure out there is no error in that area. but many warnings and information. the latest warnings and information are like below : warning A worker process '2408' serving application pool 'ASP.NET 4.0 (Integrated)' failed to stop a listener channel for protocol 'http' in the allotted time. The data field contains the error number. warning A process serving application pool 'ASP.NET 4.0 (Integrated)' exceeded time limits during shut down. The process id was '6764'. warning A worker process '3232' serving application pool 'ASP.NET 4.0 (Integrated)' failed to stop a listener channel for protocol 'http' in the allotted time. The data field contains the error number. warning A process serving application pool 'ASP.NET 4.0 (Integrated)' exceeded time limits during shut down. The process id was '3928'. thanks in advance best regards

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• Can I change the "From" name and address without going into Mail.app's preferences?

  - by Arjan van Bentem

  Can I somehow add an editable "From" field to Mail.app, a bit like Virtual Identity for Thunderbird, just like I could change the "Reply To" address on the fly? In Mail.app, one can set up multiple email addresses for a single account by just entering a comma-seperated list like [email protected], [email protected]. Next, when composing a message, Mail offers a dropdown to select a "From" address. And when replying†, it automatically selects the right address if it can find a match: Nice, but I'd like to be able to change the "From" on the fly, without going into the Account Information. Also, in previous versions of Mail one could even specify multiple Full Names for a single account: Email Address: Arjan <[email protected]>, Arjan on SU <[email protected]> But nowadays, Mail only uses the setting of Full Name, and even ignores names in the Email Address field when no value for Full Name is set at all. Hence, it would be great if I could change the Full Name on the fly as well. I had no luck finding a plugin for Mail yet. † When using sub-addressing, anything that is sent to [email protected] is simply delivered to [email protected]. I'd then like to reply with the same full address, rather than just [email protected] if Mail cannot find a match, without going into the Account Information first. I sometimes also want to compose a new message with a new sub-addressing-address.

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• Printer spooler spoolsv.exe crashes

  - by MattiasSN

  We have a problem with a Windows 7 print spooler. There is a Windows 2011 Small Business Server running as print server and 2 computers in the network their print spooler keeps crashing at random. The log files says it is ntdll.dll that has a fault. Naam van toepassing met fout: spoolsv.exe, versie: 6.1.7601.17514, tijdstempel: 0x4ce7b4e7 Naam van module met fout: ntdll.dll, versie: 6.1.7601.17725, tijdstempel: 0x4ec4aa8e Uitzonderingscode: 0xc0000374 Foutoffset: 0x00000000000c40f2 Id van proces met fout: 0x55c Starttijd van toepassing met fout: 0x01cd9db324904eb1 Pad naar toepassing met fout: C:\Windows\System32\spoolsv.exe Pad naar module met fout: C:\Windows\SYSTEM32\ntdll.dll Rapport-id: 8789af0b-09a6-11e2-9d78-001c25237c45 The print spooler on the server keeps running and works fine. We can also print from other computers. But on two computers the print spooler crashes. Sometimes it crashes after a user is logged in, but it also happened multiple times after a print job. After each crash we get the same ntdll.dll error. Hopefully someone can help me with this problem. If you need more information, don't hesitate to ask.

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• frequent "SNMP error" with Cacti

  - by nn4l

  When adding new devices to my Cacti instance, I get frequent "SNMP error" messages in the device screen. But the error is not consistent, not even for the same device. Here's what I already have checked: Sometimes a device shows that "SNMP error" message even when it did not had that error an hour before, and vice versa. I tried this with several different Cacti releases, installed on different OS (Debian squeeze: 0.8.7g-1+squeeze1, Debian Sid: 0.8.7i-3, CentOS 6.0: 0.8.7i-2.el6) tried both from a local (192.168.1.xy) network and from a different data center so I don't think it is a network problem reinstalled the Cacti database, rerun the scripts to install my devices. Now different devices have that error when executing a snmpwalk or snmpgetnext command from the command line, it is always successful increasing the timeout to 20000 (20 seconds) and the retry count to 10 does not make a difference The cacti.log says: 04/14/2012 02:10:19 PM - CMDPHP: Poller[0] WARNING: SNMP GetNext Timeout for Host:'s0026.mydomain.de', and OID:'.1.3.6.1.2.1.1.3.0' 04/14/2012 02:10:20 PM - CMDPHP: Poller[0] WARNING: SNMP GetNext Timeout for Host:'s0026.mydomain.de', and OID:'.1.3' However, when executing snmpget or snmpget with that from the command line a proper response is returned immediately.

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• Win7 Pro x64 task manager hangs when restarting explorer.exe after waking from sleep

  - by Brandon Dybala

  I have a desktop running Windows 7 x64 Pro, set for Hybrid Sleep on a wired network. Wakeup is only enabled from the keyboard (wake on mouse and Wake-On-LAN are both disabled). Sometimes when it wakes up, there is no network connectivity. The notification area icons for both network and volume don't respond to clicks. If I open the Network and Sharing Center, clicking the red X doesn't do anything. Restarting does fix the problem, but I'm looking for a solution that does not require restarting (if at all possible). Drivers are all up to date. I've tried opening Task Manager and restarting the explorer.exe process, but Task Manager freezes for a few minutes, the "New Task" dialog closes, and explorer.exe has not restarted. CPU and memory usage are both normal. One thread suggested making sure the BIOS was set for S3 sleep mode only (not S1 or S1 & S3), but I haven't checked this yet. Going back to sleep and waking back up does not help. So far only a reboot has fixed the issue. System specs: Windows 7 x64 Pro Asus P8Z68-V PRO/GEN3 128 GB Crucial m4 SSD (Firmware version 0309) Intel Core i7 2600 3.4 GHz 16 GB RAM Any ideas? Brandon

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• Does any Certificate Authority support both SAN and wildcards?

  - by nicholas a. evans

  My basic quandry is that wildcard certificates don't support subdomains of subdomains, nor do they help with alternate domain names. Basically, if my CN is example.com, I want a Subject Alternative Name field that looks roughly like so: DNS:example.com DNS*.example.com DNS:*.beta.example.com DNS:example.net DNS:*.example.net DNS:*.beta.example.net Using a self-signed cert, I verified that the browsers will work just fine with this. Unfortunately, none of the Certificate Authorities that I looked into (Thawte, GoDaddy, Verisign, Digicert) seemed to support both wildcard certs and Subject Alternative Name (sometimes referred to as "Multiple Domain UCC"). I even called up GoDaddy tech support to confirm. Is there a CA (trusted by 99% of browsers) that supports wildcards for the Subject Alternative Name? One little restriction: I'm saddled with Amazon EC2's single Elastic IP per instance limitation. Here are what I see as my backup plans: set up three extra EC2 instances, each configured for a different IP address and cert, and nginx reverse proxy from three of them into the app server(s) introduces latency(?), and even the cheapest EC2 instance isn't that cheap instead of dedicated reverse proxy instances, setup the four or more almost identical EC2 app servers, with nginx using the port to determine which cert to deliver, and use haproxy to distribute the traffic amongst themselves. complicated to configure and manage? I'm not using the cheapest EC2 instance type for my app servers. If I don't need 4+ app servers for the load, it raises the cost. set up an external server (outside of EC2) that doesn't have EC2's Elastic IP address restrictions, setup all of the alternate IP addresses and certificates on that server, and nginx reverse proxy from that server into the EC2 app servers. extra IP addresses are almost free (still need to pay for the server of course), but don't come with the robust "elasticity" that Amazon's Elastic IPs provide. even more latency than in the first scenario. Are these approaches crazy or reasonable? Do you have another one to suggest?

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• Contacts Issue: Google Contacts, Nokia 5800 And Outlook, Sync and Images

  - by josecortesp

  Hello everyone, this is a multi-question, so please, feel free to answer just one or all of them. My actual situation is: Google contacts sync with Nokia 5800 using MFE(google sync), using google's fake "exchange server". Outlook sync with google using GoContact Sync software (http://www.webgear.co.nz/Products/GOContactSync.aspx). What I want, a easy(or not) way to correctly sync the three of them, even if I have to change some of my "escenario". I know outlook<-google contacts sync is not good yet, but if someone can suggest me some better SW than GoContact Sync. It'll be good. What I really want is to sync a least name, phone, email and image. Then, is there a way to get all my google contacts to by default use their own google image? I noted that, usually i have to manually choose it, and sometimes it doesn't work. I'll like to use something or someone's service to do this automatically. I have tried some services like Soocial, but it gives me a lot of trouble after the first sync, because soccial can ONLY get ALL your contacts, not just "My Contacts"; and also it gives me like 100 bad contacts in outlook because of their beta client. The final goal of all of this is to Get only "My Contacts" from google in Outlook and in the 5800 with their images Get ALL my contacts with their default image, meaning, the contact's personal image Get a solution to correctly sync the three of them, using Google's as the base for the rest of them. Thanks in advance. Again, feel free to sugest me solutions to just one or all them.

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• what can be causes of http server crash?

  - by mithunmo

  Hello , I am using WAMP server on Windows XP. Apache 2.2.11 MySQL 5.1.36 (INNODB engine) PHP 5.3.0 I observe that my WAMP server crashes in the following scenarios IF I use a Low end PC ( low processor speed and low RAM) After making some changes to httpd.conf file .For eg changing the Allow from IP address . But here it crashes only once and then it starts to work fine. Random crashes CRASH LOG szAppName : httpd.exe szAppVer : 2.2.11.0 szModName : php5ts.dll szModVer : 5.3.0.0 offset : 0000c309 C:\DOCUME~1\blrcom\LOCALS~1\Temp\WERc677.dir00\httpd.exe.mdmp C:\DOCUME~1\blrcom\LOCALS~1\Temp\WERc677.dir00\appcompat.txt My questions Does high CPU utilization/LOW RAM can also cause the HTTP server to crash ? excessive file reading as in every 10 seconds ? unlimited script execution time . I have set the maximum execution time in php script to 0 as my script has to execute for sometimes 2-3 days. Is there any way to avoid this ? Access to Database ? Should we use lock before reading and writing Can these be the reasons for random wamp server crashes ? OR is is some other programming error ? Please guide me . Regards, Mithun

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• Apache2 - mod_rewrite : RequestHeader and environment variables

  - by Guillaume

  I try to get the value of the request parameter "authorization" and to store it in the header "Authorization" of the request. The first rewrite rule works fine. In the second rewrite rule the value of $2 does not seem to be stored in the environement variable. As a consequence the request header "Authorization" is empty. Any idea ? Thanks. <VirtualHost *:8010> RewriteLog "/var/apache2/logs/rewrite.log" RewriteLogLevel 9 RewriteEngine On RewriteRule ^/(.*)&authorization=@(.*)@(.*) http://<ip>:<port>/$1&authorization=@$2@$3 [L,P] RewriteRule ^/(.*)&authorization=@(.*)@(.*) - [E=AUTHORIZATION:$2,NE] RequestHeader add "Authorization" "%{AUTHORIZATION}e" </VirtualHost> I need to handle several cases because sometimes parameters are in the path and sometines they are in the query. Depending on the user. This last case fails. The header value for AUTHORIZATION looks empty. # if the query string includes the authorization parameter RewriteCond %{QUERY_STRING} ^(.*)authorization=@(.*)@(.*)$ # keep the value of the parameter in the AUTHORIZATION variable and redirect RewriteRule ^/(.*) http://<ip>:<port>/ [E=AUTHORIZATION:%2,NE,L,P] # add the value of AUTHORIZATION in the header RequestHeader add "Authorization" "%{AUTHORIZATION}e"

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• Recursive move utility on Unix?

  - by Thomas Vander Stichele

  Sometimes I have two trees that used to have the same content, but have grown out of sync (because I moved disks around or whatever). A good example is a tree where I mirror upstream packages from Fedora. I want to merge those two trees again by moving all of the files from tree1 into tree2. Usually I do this with: rsync -arv tree1/* tree2 Then delete tree1. However, this takes an awful lot of time and disk space, and it would be much easier to be able to do: mv -r tree1/* tree2 In other words, a recursive move. It would be faster because first of all it would not even copy, just move the inodes, and second I wouldn't need a delete at the end. Does this exist ? As a test case, consider the following sequence of commands: $ mkdir -p a/b $ touch a/b/c1 $ rsync -arv a/ a2 sending incremental file list created directory ./ b/ b/c1 b/c2 sent 173 bytes received 57 bytes 460.00 bytes/sec total size is 0 speedup is 0.00 $ touch a/b/c2 What command would now have the effect of moving a/b/c2 to a2/b/c2 and then deleting the a subtree (since everything in it is already in the destination tree) ?

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• Windows 7 - Wireless Signal Good - Internet Often Says Limited or No Activity

  - by Anthony Trilussa Pizzo

  Hi - I have a New Dell Studio XPS latop that I hooked up in early January of 2010. The Dell Studio XPS laptop is connected to my wireless router (Belkin Wireless N). The router was purchased in Februaru of 2010 because I thought my router was bad (A D-Link router). Comcast is my ISP. Everyday, at random times, the internet will have a good signal (according to the little Win 7 icon on the taskbar) but I will receive a message saying limited or no internet access and I cannot access the internet. I have the internet setup to automatically get an IP and I did the IPCONFIG release / renew but with no success. I even had a WiFi enabled Blackberry right next to my computer and whenever the computer loses an WiFi connection, so does the Blackberry. The router isnt't bad, because the old router did the same thing - giving me limited or no internet access while working sometimes. I also tried using two other laptops in same physical position as my Dell Studio XPS laptop and they have the same problem. I am going crazy trying to figure this out as I have called the Router Company (Belkin), my ISP (Comcast), and my computer maker (Dell). Can anyone offer some suggestions and I can try them as we work through this and maybe one of the suggestion will be right one. Thanks in advance for even reading my problem. I searched for a problem similar to mine on the internet, but I have not been able to keep a steady internet connection. (Side note - I used to have an IBM thinkpad laptop and D - Link router and for years that wireless connection worked FLAWLESSLY, with the same physical set up - the laptop in my bedroom, and the router in the basement.)

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• Not recognizing second monitor after hibernate (Windows 7, Dell D630 laptop)

  - by Brooks Moses

  I have a Dell Latitude D630 laptop which I've recently updated to Windows 7 64-bit. (The Dell site confirms that it's Windows-7-compatible.) Normally it lives in a docking station with a second monitor connected to the DVI port on the docking station, and I use the second monitor in a multi-monitor configuration with the laptop screen. Sometimes I undock the laptop and use it separately. Here's the problem: If I hibernate the laptop while undocked, and then power it back up in the docking station, it does not recognize the second monitor. By which I mean that not only does it not share the desktop onto the second monitor, but if I go into the control panel for display settings and press "Detect", it does not even detect the existence of the second monitor. I can tell it to "use the VGA port anyway" for a second monitor, but the monitor is connected to a DVI port on the docking station, so that doesn't do anything useful. If I entirely reboot the laptop while it's connected to the docking station, it has no problem recognizing the second monitor and using it. But then, if I hibernate, undock, de-hibernate while undocked and rehibernate, and then re-dock and de-hibernate, it's back to not recognizing the second monitor again. I'm reasonably certain that this is not a limitation of the hardware; this worked fine on Windows XP. I'm currently using the Windows 7 driver for my video card. I attempted to use the video driver from the Dell website for this laptop, but Dell only provides Vista 64-bit drivers, not Windows 7 64-bit drivers. Their "Windows 7 compatibility" page suggests that the Vista drivers should work, but when I attempted to install the driver, it gave me a "this operating system not supported" error and refused to install. Any further ideas?

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• Win 7 running slowly with low CPU usage and memory

  - by guywhoneedsahand

  I have a relatively new (under 2 yrs old) windows 7 machine. It has 9GB of RAM, and an i7 core CPU (930 @ 2.8GHz w/ 8 CPUs). After about 8 months since a clean install, I noticed my computer was running slowly. I figure it was fragmentation etc, and I did a complete wipe & clean reinstall. However, my problems are somehow persisting. The computer is running painfully slowly (but in leaps and bounds - sometimes it will work fine for 3 hrs, then suddenly freeze up just from clicking the start button). The 'freezes' happen randomly - not during any especially intensive computing. I initially thought something might be eating through my CPU and/or Memory, but Task Manager indicates that neither the CPU or Memory spike. In fact, even during serious lag, CPU usage remains at less than 5% and Memory at ~ 1.5GB. It's beyond me why a fresh install on a powerful machine is performing so poorly... and it certainly is frustrating! What could be causing the poor performance, and what can I do to fix it?

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• Reloading NAT configuration on a running VMWare Server 2.0.2

  - by Jonathan Clarke

  I have a server running VMWare Server 2.0.2. The host is Debian Lenny. I have 15-20 virtual machines running, all attached to a single NAT network (named vmnet8). I have configured VMWare's NAT (the vmnet-natd daemon) to forward some incoming to ports to one of the VMs, since it hosts some publicly accessible services. I did this via the file /etc/vmware/vmnet8/nat/nat.conf by adding lines like the following: 80 = 192.168.100.100:80 This works great, I can reach the web server on the VM at 192.168.100.100 by connecting to the host's IP address. Sometimes, I need to add port redirections to this NAT configuration. So, I add a line to the configuration file. Now for the question. How do I make the natd process take this new configuration into account? Clearly, restarting the host machine does take it into account, and the newly added port is forwarded. However, this is not an option on this server, so how should one do this without restarting the whole host? Thanks for any ideas!

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• Is it possible to be a Linux professional studying on your own?

  - by Marc Jr

  I read economics at university(nothing to see with linux, isn't it? :P). I have some basic knowledge about booting process, Linux Kernel compiling from source and stuff like that. But of course I have still much to learn sometimes some errors appears and "voila" I am lost. I had: Ubuntu, Fedora, OpenSuse, Arch.. using Gentoo now. I'd like to know what you linux users, professionals, administrators... would think it is the best way to learn linux in a professional way. Is it worth studying it and passing the LPIC test enough to work in the linux world? or do I need going to IT uni? I've heard LFS is a good way of learning about linux, is that real? I've been thinking about getting to LFS learn about more deeply about the linux process and learning scripts. It is possible to do this way? if anyone has a tip or a good way of doing, maybe someone did it. Any tip is very welcome. Words from a person in love with linux. :D The best, Marc

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• How do I fix this Windows 7 wireless connectivity issue?

  - by Charles Randall

  I have a laptop with an Intel Wireless Centrino 6300 module. Recently, the machine has stopped properly connecting to my wireless router. It will get stuck in a loop of connecting, then disconnecting and reconnecting. While connected, it will simply say "No Internet Access." Running inSSIDer 2.0, it shows my network jumping around between two channels -- I know this isn't the case, because I've set my router to sit on one single channel. My MacBook Pro, Boxee Box, PS3, and Xbox 360 all connect fine to the wireless and have no problems at all. I know it's not the wireless module, as I bought a second one recently assuming the first had died -- but I get the same behavior with both. Sometimes, I can fix the issue temporarily by deleting the network (Using the Manage Wireless Networks page), and then re-adding it (via standard wireless methods). Then it will work for a few days. But inevitably the problem comes back, and now the laptop simply won't connect to the wireless at all, even if I take steps that usually work. Since I've ruled out the hardware, and it's unlikely some kind of interference issue (because I would expect to see it on any multitude of other devices), I would think at this point that it's a problem with Windows itself. One thing that might be a hint, even though I delete the network, when I add it again, it's always listed as "Wireless Network Connection 2" even though there isn't another in the list.

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• Writing a script for ash?

  - by rumtscho

  My VPN is behaving funny sometimes, and I have to restart it often. I wanted to write a script which does that for me. It doesn't have to be anything fancy, just a shortcut for the commands I have to type into the terminal. More specifically: it will look at the running processes. If it finds a running vpnc process, it will kill it. Then it will start vpnc. I've written bash scripts of similar complexity, but now I don't have a bash, only an ash. Until now, the only difference I noticed is that there are much less commands available, but then, I don't use it very often. So I have some questions. Is writing ash scripts different than writing bash scripts? Is there something specific to consider when doing it? When the script is ready, how can I deploy it? For bash, I just put the executable file under /usr/lib and run it by typing the file name into the command line, will this work with ash? Are there any special pitfalls to watch out for in the script I want to write? I think that the killing process part may get hairy, if I write something that kills the wrong process, but even then running the script shouldn't break anything permanently, right?

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• Apache httpd Problem

  - by Christopher

  Hey, I am getting intermittent issues with my site. Pages often hang with huge loading times and sometimes fail to load. The httpd error logs contain the following: [Wed Feb 23 06:54:17 2011] [debug] proxy_util.c(1854): proxy: grabbed scoreboard slot 0 in child 5871 for worker proxy:reverse [Wed Feb 23 06:54:17 2011] [debug] proxy_util.c(1967): proxy: initialized single connection worker 0 in child 5871 for (*) [Wed Feb 23 06:54:24 2011] [debug] proxy_util.c(1854): proxy: grabbed scoreboard slot 0 in child 5872 for worker proxy:reverse [Wed Feb 23 06:54:24 2011] [debug] proxy_util.c(1873): proxy: worker proxy:reverse already initialized [Wed Feb 23 06:54:24 2011] [debug] proxy_util.c(1967): proxy: initialized single connection worker 0 in child 5872 for (*) [Wed Feb 23 06:59:15 2011] [debug] proxy_util.c(1854): proxy: grabbed scoreboard slot 0 in child 5954 for worker proxy:reverse [Wed Feb 23 06:59:15 2011] [debug] proxy_util.c(1873): proxy: worker proxy:reverse already initialized The server is currently running with 800mb free memory, so it is not caused by lack of RAM. The current number of httpd procceses is 11. This does increase as the error persists and can rise up to 25+. Also, I am running Apache/2.2.3 (CentOS). Any suggestions would be greatly appreciated. Many thanks, Chris.

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• How to configure Farsun USB barcode scanner to not auto-trigger

  - by David Grayson

  At my company we have several USB barcode scanners. I'm not sure exactly what model they are, but I think they are the FG9800 from Farsun because that's what they look like on the exterior. They came with a programming manual that is very similar to this document from the Farsun website. When I scan the "Output Firmware Version" barcode, my scanner types the following into the computer: Farsun V2.00 2011-01-01 Is it possible to configure these scanners so they only read barcodes in response to the trigger button being pressed? I don't want them to automatically read barcodes. Additionally, I want this setting to be remembered while the scanner is turned off. Since this scanner only has a USB port, the only way to configure it that I know of is to scan bar codes from the manual (or make your own). I have tried scanning the configuration bar codes for Single Scan (013300), Single Scan No Trigger (013301), and Laser/CCD Timeout - 5 Seconds (0134005) from this document. Sometimes (but not often) this puts the scanner in to the right mode, where it only scans when the button is pressed. Unfortunately, the scanner seems to always leave this mode when it is power cycled. I have also scanned the "Reset Configuration To Defaults" barcode (0B) many times. We have three different scanners like this and I have not been able to successfully configure any of them. If the things I want are not possible with these Farsun-based scanners, is there some other scanner we can use?

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