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• Manual NAT on Checkpoint (Redirect all http requests to a local web server)

  - by B. Kulakli

  We have a proxy server in our internal network and I want to redirect all internet http requests to a web server in local network. It'll be like a Network Billboard that says "No direct connection is available. Set up your proxy etc." For example: A user starts the computer Opens the browser Tries to open www.google.com Should see web server output on local network Tries another web site on internet Should see web server output on local network Sets up proxy Tries to connect to a web site Web site should be loaded I have added a simple manual NAT rule to address translation in Checkpoint firewall but it simply does not work. Here is my address translation rule Source Destination Service T.Source T.Destination T.Service MY_PC A_GOOGLE_IP ALL ORIGINAL INT_WEB_SRV ORIGINAL Then when I ping A_GOOGLE_IP, replies come from INT_WEB_SRV, as I expected. However, when I try to connect A_GOOGLE_IP from browser (http://A_GOOGLE_IP), no replies come from SYN_SENT and falls into timeout. When I look at the firewall log of INT_WEB_SRV, I can see the incoming connection requests from MY_PC is accepted and NO denies. By the way, there is no problem to see INT_WEB_SRV (http://INT_WEB_SRV) from browser. My understanding is, my NAT rule at checkpoint NGX R60 does not include return packets. I definitely need some help.

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• Connecting to same public IP from different locations yields different results

  - by DHall

  Since yesterday I've been unable to access one of my favorite time-wasting sites, boston.com. It starts to load but then it gets redirected to pagesinxt or something like that. After some investigation, I've narrowed it down to an issue with cache.boston.com, but only from my work location. I found the IP (216.38.160.107) , but even that doesn't work correctly from here at work. When I do a telnet 216.38.160.107 80 GET http://cache.boston.com/universal/css/hp_bgcom.css from another location, I get a nice long CSS, as expected. From here, I get an error (trimmed for size): HTTP/1.1 400 Bad Request Your request could not be processed. Request could not be handled This could be caused by a misconfiguration, or possibly a malformed request. For assistance, contact your network support team. Is there any way I can troubleshoot this further on my end? Tracert doesn't tell me anything too useful: Tracing route to vwrpx1.ttn.xpc-mii.net [216.38.160.107] over a maximum of 30 hops: 1 * * * Request timed out. Since it's not really work-related, I don't really want to bring it up to our network team unless I know what's going on, or if there's some risk to the network (ex. malware or something)

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• Load is 0, yet site crawls (sometimes). What gives?

  - by Yegor

  I have a ~1.5-2mil page views per day site running on 2 servers. One for mysql, other for everything else. Mysql box has a load of 3, frontend is usually 0.0-0.1. Both are dual quad core with 8GB ram running SAS drives in raid5. CPU is idle for majority of the time, iowait is non-existent. Im running nginx, memcache, and site is built on php. Half the time everything runs perfect, while at other times it lags something severe, when it takes 10-15 seconds for a page to load. Page execution time is always super low, but it seems to hang, waiting for something before it actually loads the page. Whats even more weird is that it only happens to 1 file on the site (but its the one thats most commonly accessed, that actually loads the content on the site). Other pages are super fast at all times, even when it takes 15 seconds to load actual content. I have nginx_stats plugin installed, and if I monitor it, the lag spikes happen when the write column starts going above 100, and it frequently does... all the way to 500-1000. It does so at totally random times... not when traffic is heavy... it can do this in the middle of the night, and work perfectly at 5pm when traffic is at its highest. Any ideas?

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• Understanding !d command in sed with respect to saves

  - by richardh

  I have a directory of tab-delimited text files and some have comments in the first few lines that I would like to delete. I know that the first good line starts with "Mark" so I can use /^Mark/,$!d to delete these comments. After this deletion I have several other replacements that I make in the (new) first line that has variable names. My question is, why do I have to save sed's output to get my script to work? I understand that if I line is deleted, then the output doesn't proceed downstream because there is no output. But if I don't delete (i.e., !d) then why do I have to save to file? Thanks! Here is my shell script. (I'm a sed newbie, so any other feedback is also appreciated.) #!/bin/bash for file in *.txt; do mv $file $file.old1 sed -e '/^Mark/,$!d' $file.old1 > $file.old2 sed -e '1s/\([Ss]\)hareholder/\1hrhldr/g'\ -e '1s/\([Ii]\)mmediate/\1mmdt/g'\ -e '1s/\([Nn]\)umber/\1o/g'\ -e '1s/\([Cc]\)ompany/\1o/g'\ -e '1s/\([Ii]\)nformation/\1nfo/g'\ -e '1s/\([Pp]\)ercentage/\1ct/g'\ -e '1s/\([Dd]\)omestic/\1om/g'\ -e '1s/\([Gg]\)lobal/\1lbl/g'\ -e '1s/\([Cc]\)ountry/\1ntry/g'\ -e '1s/\([Ss]\)ource/\1rc/g'\ -e '1s/\([Oo]\)wnership/\1wnrshp/g'\ -e '1s/\([Uu]\)ltimate/\1ltmt/g'\ -e '1s/\([Ii]\)ncorporation/\1ncorp/g'\ -e '1s/\([Tt]\)otal/\1ot/g'\ -e '1s/\([Dd]\)irect/\1ir/g'\ $file.old2 > $file rm -f $file.old* done

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• Default IPv6 route on debian squeeze does not come up after boot

  - by Georg Bretschneider

  I have a problem with my default IPv6 route not coming up after boot on a Debian Squeeze system. This is my config (/etc/network/interfaces): # Loopback device: auto lo iface lo inet loopback iface lo inet6 loopback # device: br0 auto br0 iface br0 inet static bridge_ports eth0 bridge_fd 0 address 88.198.62.xx broadcast 88.198.62.63 netmask 255.255.255.224 gateway 88.198.62.33 up route add -net 88.198.62.32 netmask 255.255.255.224 gw 88.198.62.33 br0 iface br0 inet6 static address 2a01:4f8:131:10x::2 netmask 64 gateway 2a01:4f8:131:100::1 up route -A inet6 add 2a01:4f8:131:100::1/59 dev br0 My inet comes up alright, but I have to exec the route command manually after boot to make IPv6 work. Otherwise I can't even reach my gateway. This is the output of ip -6 route show after boot: 2a01:4f8:131:10x::/64 dev br0 proto kernel metric 256 mtu 1500 advmss 1440 hoplimit 4294967295 unreachable fe80::/64 dev lo proto kernel metric 256 error -101 mtu 16436 advmss 16376 hoplimit 4294967295 fe80::/64 dev br0 proto kernel metric 256 mtu 1500 advmss 1440 hoplimit 4294967295 fe80::/64 dev eth0 proto kernel metric 256 mtu 1500 advmss 1440 hoplimit 4294967295 I already tried it with: up ip -6 route add 2a01:4f8:131:100::1 dev br0 up ip -6 route add default via 2a01:4f8:131:100::1 dev br0 in /etc/network/interfaces, but with the same results. If I execute those commands manually on my shell, everything starts working nicely. And yes, I tried with post-up instead of up, too. Only other changes I made was to activate ip forwarding for IPv6, because I want to run some LXC containers on that system.

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• Shuffling in windows media player

  - by Crazy Buddy

  I think media player has several issues indeed. You see, I'll be hearing songs most of the time using WMP 11 (in WinXP SP3). Today - While I was wasting my time poking some sleepy questions in SE, I also noticed this... My "Now-playing" list contains some 500 mp3s (doesn't matter). I've enabled both Shuffle and Repeat. I play those songs. When I get irritated with some song (say - the 10th song), I change it. Something mysterious happened (happens even now). A sequence of atleast 3 songs (already played before the 10th song) repeat again in the same way following the selected one... Then, I skip those somehow and arrive at another boring song (say now - 20th) and now, the sequence would've increased by about 5 songs (sometimes)... Sometimes, I even notice a specific "sequence of songs" (including the skipped one) repeating again & again. I doubt most guys would've noticed. This makes me ask a question - Why? There are a lot songs in my playlist. Why the same sets of songs? Does WMP really chooses a sequence at start and follows it. Once a change is encountered, it starts the sequence again after several songs. Is it so? Feel free to shoot it down. I don't know whether it's acceptable here. Just curious about it... Note: This is only observed when both shuffle and repeat are enabled. To confirm, I tried it in two other PCs of mine (thereby dumped 2 hours). BTW, I also didn't observe this magic in VLC, Winamp, K-Lite and not even my Nokia cellphone. I think I'm not a good Googler and so, I can't find any such issues :-)

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• Value of Itanium or Sparc over x86_64 for Oracle Deployment

  - by Antitribu

  We are looking at a new environment to run our Oracle Database running on SUSE (potentially migrating to RedHat). Our database is approximately 100GB and performs adequately on our current hardware (x86_64) with approximately 6GB of ram allocated to it. We are growing quickly however and will require more performance shortly. Given the cost of Oracle licenses we would like to maximize the value from each license by choosing the most appropriate CPU to run the software on. The questions are: Are there substantial benefits to looking at Itanium or Sparc hardware, are there any drawbacks? Is there a point where one starts to scale out better? What are the long term support options for Itanium? Given the dominance of x86 would it be safer long term to stick with x86? On average what would be the performance benefit of implementing an Oracle database on Itanium or Sparc over x86_64? Is this an issue at all or will other factors (IO/RAM) cap out first? If anyone can point me towards some solid documentation on comparisons between the platforms that provides good case analysis of when to choose which I'm more than happy to accept that as an answer. Edit:- Added Sparc as an Option as it was previously not considered however with the recent Oracle Sun aquisition seems very relevant.

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• Wake-on-lan only works so many times

  - by Chance

  I have Wake-on-lan configured on my Windows XP machine so that the computer will wake up from Standby. Waking the computer from Standby via network traffic seems to work a certain number of times, say 4 or 5, then it stops working. If I restart the computer it seems to reset this behavior so that I can use WOL a few more times before it starts working. I use the command "wol" on my other, Linux machine with the appropriate IP address and MAC address of the card. I looked at the network card to see if it had different lights when WOL worked and when it didn't. When it has a solid amber light where the ethernet cable connects, WOL seems to work. When it has a flashing amber light, WOL does not. It seems that the system seems to almost "shut off" the card when it falls to sleep, but I don't know if this is a function of time or number of standby/wakeups. I have a 3Com 3c920 network card. If I look at the properties in Device Manager, I have "Allow this Device to bring the Computer out of Standby" checked. In the Advanced tab I have anything related to RWU (Remote Wake Up) enabled. I also believe I have the appropriate settings in BIOS related to Remote Wake-Up and I have tried both S1 and S3 power configurations in the BIOS. Intuitively, I would think I would uncheck "Allow the Computer to turn off this device to save power", but doing so disables the "Allow this Device to bring the Computer out of Standby" option. Does anyone know what is happening here or if there is a way to fix it? I have an integrated network card; would getting one that goes into a slot be better? I am running Windows XP on a Dell Optiplex GX240 with a 3Com 3c920 network card.

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• Changing open-files-limit in mysql 5.5

  - by davidv

  I'm having an issue with mysql 5.5 running on Ubuntu 12.04 with the open-files-limit parameter. I recently noticed some problems due to the 1024 limit, and actually the main system limit was set to 1024, so I modified /etc/security/limits.conf with the following: * soft nofile 32000 * hard nofile 32000 root soft nofile 32000 root hard nofile 32000 After that I check the ulimit value for root and even for mysql user, both returned the new value: 32000, so I assume the change has already been done. I also changed the value at the my.cnf file, setting open-files-limit to 24000, like this: open-files-limit = 24000 Now comes the odd part, when I restart the mysql service and check the open_files_limit variable, it returns that it's still set to 1024, so I'm having the same problems that before (obviously), I tried to use open-files-limit instead open_files_limit in the my.cnf config file, same result, BUT if I override the service command to start the service and start only using mysqld (no additional parameters), the service starts and when I check the parameter it returns 32000... I don't know where it's taking that value from, as it's not set at my.cnf and it's not being given through command line, at least, not for myself. Any ideas about why it's not working the change and how to solve it the normal way (launching it through service...)?

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• Varnish does not start properly (crashes after startup) with no error messages

  - by Matthew Savage

  I am running Varnish (2.0.4 from the Ubuntu unstable apt repository, though I have also used the standard repository) in a test environment (Virtual Machines) on Ubuntu 9.10, soon to be 10.04. When I have a working configuration and the server starts successfully it seems like everything is fine, however if, for whatever reason, I stop and then restart the varnish daemon it doesn't always startup properly, and there are no errors going into syslog or messages to indicate what might be wrong. If I run varnish in debug mode (-d) and issue start when prompted then 7 times out of time it will run, but occasionally it will just shut down 'silently'. My startup command is (the $1 allows for me to pass -d to the script this lives in): varnishd -a :80 $1 \ -T 127.0.0.1:6082 \ -s malloc,1GB \ -f /home/deploy/mysite.vcl \ -u deploy \ -g deploy \ -p obj_workspace=4096 \ -p sess_workspace=262144 \ -p listen_depth=2048 \ -p overflow_max=2000 \ -p ping_interval=2 \ -p log_hashstring=off \ -h classic,5000009 \ -p thread_pool_max=1000 \ -p lru_interval=60 \ -p esi_syntax=0x00000003 \ -p sess_timeout=10 \ -p thread_pools=1 \ -p thread_pool_min=100 \ -p shm_workspace=32768 \ -p thread_pool_add_delay=1 and the VCL looks like this: # nginx/passenger server, HTTP:81 backend default { .host = "127.0.0.1"; .port = "81"; } sub vcl_recv { # Don't cache the /useradmin or /admin path if (req.url ~ "^/(useradmin|admin|session|sessions|login|members|logout|forgot_password)") { pipe; } # If cache is 'regenerating' then allow for old cache to be served set req.grace = 2m; # Forward to cache lookup lookup; } # This should be obvious sub vcl_hit { deliver; } sub vcl_fetch { # See link #16, allow for old cache serving set obj.grace = 2m; if (req.url ~ "\.(png|gif|jpg|swf|css|js)$") { deliver; } remove obj.http.Set-Cookie; remove obj.http.Etag; set obj.http.Cache-Control = "no-cache"; set obj.ttl = 7d; deliver; } Any suggestions would be greatly appreciated, this is driving me absolutely crazy, especially because its such an inconsistent behaviour.

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• I can't get my PC to start up by a normal way.

  - by ssice

  I couldn't write a more accurate title. I am just unable to start the computer by pressing the Power On button. I checked the Power Supply and it seems to give good voltage values in every pin. And this is not a BIOS malfunction because of bad overclocking or anything that may come to your mind. And I will tell you why. It happens that EPS (or any ATX-based) power supply has the ability to be powered-on by the Motherboard by jumping the 13th pin of the 24-pin-ATX-connector to COM/GND. I did it, after pushing the power on button (without any visual response) and, pwhaa! The machine turned on. I was able to read (and even write, if I wanted) BIOS values and then start any OS installed. Machine starts, so it's not any kind of misconfiguration. It seems some hardware related. I am able to power the machine on only if I already pushed the power on button. Though pushing it without jumping the 13th pin to ground for a second does not power the machine. Of course, jumping the pin without pushing the power on button does not tell the motherboard anything, so the computer would not start up either. It's as if the logic that connects the power button with the 13th pin derivation to GND was unable to be activated. What can be the issue? How can I solve it? My configuration is as follows: CPU: AMD Phenom 9850 X4 Black Edition MB: ASUS Formula II AM2 RAM: 2x2GB Corsair Dominator 5-5-5-15 2T @ 1066MHz DDR2 Tested also with only 1 module GPU: 2x XFX nVIDIA GeForce 9600 GT XxX Alpha Dog Edition @ Core: 540Mhz [SLi] Power Supply: Xilence 700W (ATX 12V 2.3 / EPS 12V 2.92 compatible) PS: I know the machine is like 2 years old. I hardly use it now, but my parents do.

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• What is the best cloud technology to use for MongoDB/GridFS database servers

  - by Nerian

  We are going to launch a service that will require between 1 and 2 GB for file storage per paid user. I am going to use GridFS for storing files. GridFS is a module for MongoDB that allows to store large files in de database. I am pondering the different options for storing the database. But since I am unexperienced at deployment and it is my first time with Mongodb I need your experience. Criteria: I want to spend my time developing my core business, that is, my own application. I am a Ruby on Rails developer. I do not like to mess with server configuration. Hence, I would like a fully managed hosting solution. But I would like to know about any other option, if you think it is worth it. It should be able to scale. Cloud style. Pay as you go. The lower the price, the better. So far I known of these services: https://mongohq.com/pricing https://mongomachine.com/pricing https://mongolab.com/about/pricing/ http://cloudcontrol.com/add-ons/mongodb/ And they seem to be OK for common needs, that is no file storage. But I am going to use GridFS, so the size matters. These services seems to scale, in price, quite poorly. MongoHQ: The larger plan max storage is 20 GB. Seems like a very little storage, for GridFS. MongoMachine: Flat price, 2.5$ per GB. I didn't found the limit. Seems like a good price, comparing the others. MongoLab: 3.984 GB max, which I don't think I will hit, so perfect. 8$ per GB, quite costly. CloudControl: The larger plan is 20 Gb. The custom service starts at 250€ plus some unspecified charge per GB. What is your experience with these services? Any downtimes? Other possibilities? Edit: Added meaning of GridFS

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• Ubuntu 10.10 - PC shutdown before boot shortly after BIOS loads

  - by clem

  Since installing Ubuntu 10.10 from Karmic I've started getting problems with starting up the PC. I've done a complete wipe (Boot and Nuke) of the hard drive and reinstalled Ubuntu 10.10 but the problem still occurs. There is no dual boot on the PC, just Ubuntu. Here is the problem: Each morning, when I turn the PC on from being off overnight, the PC starts up and loads the BIOS. I get the following message Verifying DMI Pool Data... K8 NPT Data Change...Update New Data to DMI!....... Then poof the computer shuts off. However, after switching the computer back on around 6 or 7 times after it's turned itself off, it will eventually boot up without any problem. Also, once up and running for a while, I can shutdown and restart the PC first time, without any issues. I have also noticed a problem with the USB mouse being recognised and once I finally get the computer booted up, I need to unplug and then plug the mouse back in to get it working. I've opened the PC up and checked the connections (cables, cards and memory) and it all seems fine. The main issue with troubleshooting this problem is I cannot test any suggestions or fixes until the next morning because once the computer is up and running it will remain so! I do not leave the computer on overnight to save energy. So.. Is this a hardware / boot software issue? This is a very odd problem and I have googled to no avail. Any suggestions?

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• Manual NAT on Checkpoint (Redirect all http requests to a local web server)

  - by kulakli

  Hi, We have a proxy server in internal network and I want to redirect all internet http requests to a web server in local network. It'll be like a Network Billboard that say "No direct connection is available. Set up your proxy etc." For example: A user starts the computer Opens the browser Trys to open www.google.com Should see web server output on local network Trys another web site on internet Should see web server output on local network Sets up proxy Trys to connect to a web site Web site should be loaded I have added a simple manual NAT rule to address translation in Checkpoint firewall but it simply does not work. Here is my address translation rule Source Destination Service T.Source T.Destination T.Service MY_PC A_GOOGLE_IP ALL ORIGINAL INT_WEB_SRV ORIGINAL Then when I ping A_GOOGLE_IP, replies come from INT_WEB_SRV, as I expected. However, when I try to connect A_GOOGLE_IP from browser (http://A_GOOGLE_IP), No replies come from SYN_SENT and falls into timeout. When I look at the firewall log of INT_WEB_SRV, I can see the incoming connection requests from MY_PC is accepted and NO denies. By the way, there is no problem to see INT_WEB_SRV (http://INT_WEB_SRV) from browser. My understanding is, my nat rule at checkpoint NGX R60 does not include return packets. I definitely need some help. Regards, Burak

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• Why is writing to my external hard drive slow, while benchmarks show fast writing?

  - by matix2267

  I have an iOmega eGo 320GB portable drive connected through USB2.0 to my laptop running Windows Vista. It's been working fine for quite some time until recently it became very slow when writing e.g. when copying ~300MB movie over to the drive at first it is extremely fast but it actually doesn't write it only puts in cache and then hangs on last 10-20MBs for about a minute. When copying larger files it's the same story: starts fast but then slows down to ~5MB/s (sometimes even slower down to 2MB/s). Strange thing is that I have always had caching disabled for this drive (it was disabled by default and I never bothered changing it). At first I thought that the disk is dying so I checked S.M.A.R.T. values and everything is fine there. I also run chkdsk and it seemed to fix the problem - it worked fast for a few minutes but then it slowed down again. I also tried plugging it into another USB port - no difference. Additionally I noticed that reading under certain circumstances is sometimes slower e.g. loading times for some games are ~10 times longer, whereas simple copying files from this drive to my internal HDD is fast. I ran a speed benchmark using CrystalDiskMark with a 5x100MB run and strangely got these results: read write (MB/s) Seq 33.05 28.25 512k 17.30 15.27 4k 0.267 0.372 4kQD32 0.510 0.260 This is different from what most other people have (I've found many threads about slow disk write while googling but all of them were slow on benchmarks too) which is why I decided to post this problem here. BTW most of the time when writing (or sometimes reading) the activity led is mostly idle (blinks a while and then stops for longer, sometimes has slower blinks ~1 sek, sometimes goes off for a few seconds - extremely long blink :) ) but when benchmarking, defragmenting or just reading (copying from this drive, installing apps from installers there, watching HD videos) it is blinking really fast (like it should) and there are no slowdowns. It shouldn't be driver issue unless stock Windows drivers have some issues I'm not aware of.

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• Problems installing Windows service via Group Policy in a domain

  - by CraneStyle

  I'm reasonably new to Group Policy administration and I'm trying to deploy an MSI installer via Active Directory to install a service. In reality, I'm a software developer trying to test how my service will be installed in a domain environment. My test environment: Server 2003 Domain Controller About 10 machines (between XP SP3, and server 2008) all joined to my domain. No real other setup, or active directory configuration has been done apart from things like getting DNS right. I suspect that I may be missing a step in Group Policy that says I need to grant an explicit permission somewhere, but I have no idea where that might be or what it will say. What I've done: I followed the documentation from Microsoft in How to Deploy Software via Group Policy, so I believe all those steps are correct (I used the UNC path, verified NTFS permissions, I have verified the computers and users are members of groups that are assigned to receive the policy etc). If I deploy the software via the Computer Configuration, when I reboot the target machine I get the following: When the computer starts up it logs Event ID 108, and says "Failed to apply changes to software installation settings. Software changes could not be applied. A previous log entry with details should exist. The error was: An operations error occurred." There are no previous log entries to check, which is weird because if it ever actually tried to invoke the windows installer it should log any sort of failure of my application's installer. If I open a command prompt and manually run: msiexec /qb /i \\[host]\[share]\installer.msi It installs the service just fine. If I deploy the software via the User Configuration, when I log that user in the Event Log says that software changes were applied successfully, but my service isn't installed. However, when deployed via the User configuration even though it's not installed when I go to Control Panel - Add/Remove Programs and click on Add New Programs my service installer is being advertised and I can install/remove it from there. (this does not happen when it's assigned to computers) Hopefully that wall of text was enough information to get me going, thanks all for the help.

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• How do you notice that the batteries of you wireless mouse are dying out?

  - by hkBattousai

  I have a Logitech M705 wireless mouse. I'm first time using a wireless mouse, so I don't have much experience with the hardware features and behavior. It is rated that it runs for 3 years with the same batteries. I think this "3 year" rating is calculated for a very low usage and activity; like 2 hours a day. I'm using it for about 12 hours a day, so I expect it to run out of batteries in a much shorter time in my case. I have been using it for about half a year. Recently (for the last two weeks), it started to make some peculiar behavior when clicking and drafging objects. - When I click something, it sometimes double click it. - When I drag something from one place to another (or selecting some text), it sometimes drops the object in the halfway (when selecting text, the text which had selected up to that time becomes unselected and it starts to select the rest of the text from that moment), but it goes on being in the "left-button-pressed" state. It is like, the pressed button switches to "unpressed" state for a moment, then returns back to the "pressed" state. When one of these faults occur, it occurs several times sequentially. There is no problem in pointer movement, scrolling or right-clicking. Since the batteries last for a very long time for this device, I don't expect it to stop working in an instance. I expect it to give these kind of syndromes of a time period. My question is; Is this how batteries run out for a wireless mouse? Or, is this another kind of hardware/software problem?

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• Apache HTTP Server+Tomcat: Which file generates mod_jk.conf, how to modify generated stuff, and how does httpd reach it?

  - by Sk8erPeter

  I'm using XAMPP with Apache HTTP Server and Tomcat Add-On installed. There's a default mod_jk.conf which is generated by Tomcat when starting it. But which file generates this mod_jk.conf file? How can I modify default values? By default, it looks like this: pastebin - mod_jk.conf. How does Apache HTTP Server reach this file? I can't see any reference to this file when looking into httpd.conf. When I put a VirtualHost in my httpd.conf file, and I put the line JkMount /* ajp13 into it, Apache HTTP Server service can't start (causes a 7024 event id error in Event Viewer (with error code 1, but nothing specific), but puts no error messages into error.log. The VirtualHost looks like this: pastebin - VirtualHost + JkMount. This way Apache HTTP Server can not start. If I comment out the line JkMount /* ajp13, it starts without a problem. BUT if I put the following line, which is the same as in mod_jk.conf, before the mentioned VirtualHost again, the service can start! <IfModule !mod_jk.c LoadModule jk_module "C:/xampp/tomcat/xampp/apache/modules/mod_jk.so" </IfModule Why do I have to put this line in again? Why does that happen, that the http://localhost/example does work, so this query is redirected to AJP13, but I have to put the LoadModule line in again in another file? EDIT: I don't have a clue why, I surely modified something, but now /example doesn't work either... And the config above gives a 500 Internal Server Error... :S Thanks!

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• Xbox Music ignores Asus FN media keys in Desktop Mode

  - by Ruud Lenders

  I have an Asus PRO64JQ laptop, and I recently upgraded to Windows 8. The FN keys stopped working, so I tried to install default drivers using the CD that came with my laptop. Unfortunately, the CD does not support Windows 8. Asus Support does not help me either. It seems that Asus does not support Windows 8 on my model, since I can't find it in their list of Windows 8 upgradable models. Also, the support page of my laptop does not allow me to select Windows 8 as OS. That's why I'm asking my question here. I fixed (most of) the FN keys by installing the ATKPackage, and I was happy to find out that the media keys (play/pauze, next, previous) works with the Xbox Music app. But the keys only work in the Metro UI. In Desktop Mode, pressing FN+? (play/pause) starts up Windows Media Player. Disabling Windows Media Player through the control panel stops it from popping up, but Xbox Music still only responds to them in the Metro UI. I remember that I had similar problems when I tried to make these media keys to work with iTunes on Windows 7. The fix there was a small iTunes plug-in. So tell me, do you know how to fix my problem? Thanks.

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• Difficult to point-and-click target with Apple Magic Trackpad?

  - by Andrew Swift

  My Magic Trackpad is great for most things involving dragging and gestures, but for simple point-and-click use it is starting to get really annoying. For example, my bank has a numeric code that I need to enter from a visual grid on the screen, by clicking on the six numbers in order. To do this is quite difficult with the Magic Trackpad. Idea 1: it is because when you start dragging on the touchpad, there is a brief delay before the mouse starts to move. The delay might be enough to screw up my anticipation of where the cursor is going to go. Idea 2: it may have to do with the cursor acceleration. If I move it a little, the cursor moves a little. If I move it a lot, it goes much faster. I have tried various settings in the preference pane, and although the cursor does move more or less quickly, it doesn't seem any more or less easy to hit a given target. As I am writing this post, I tried a brief experiment -- I chose a spot on the page (the bracket in the superuser logo) and tried to move the cursor there in one quick movement. It's extremely difficult, even though I've been using Macs and touchpads since 1999. There is something about the behavior of the trackpad that is making it impossible for me to learn how to accurately predict where the cursor will end up. Does anyone else have this problem?

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• Getting access to physical drives in ESXi v5.5 installation on Dell PowerEdge R710 with PERC 6/i

  - by Big-Blue

  I've acquired a Dell PowerEdge R710 server a few days ago, which includes a PERC 6/i RAID controller. The server is now fitted with a SATA SSD, one SAS drive and four SATA HDD's, all of which I would like to be passed through to ESXi in an "as-is" state, without creating any logical drives in the RAID controller. Now, the ESXi v5.5 installation image I grabbed from the Dell homepage starts just fine but only lists the logical drives and connected flash drives as possible installation targets, not any of the physical drives. If I create a small logical drive on my SSD (which the PERC 6/i detects as SATA-SSD type), the ESXi install wizard lists the SSD value on that drive as false; which is far from optimal. I have also tried disabling the RAID controller entirely in the setup, but that also did not help. Everything that should enable passthrough is enabled in BIOS, but that shouldn't be a concern at this early stage of the ESXi installation. How would I be able to install ESXi v5.5 to a part of my SSD that is connected to the storage controller, while giving it entire physical access to the disk (to allow for SMART values to be read etc.)?

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• How browsers handle multiple IPs

  - by Sandman4

  Can someone direct me to information on exact browsers behavior when browser gets multiple A records for a given hostname (say ip1 and ip2), and one of them is not accessible. I interested in EXACT details, like (but not limited to): Will browser get 2 IPs from OS, or it will get only one ? Which ip will browser try first (random or always the first one) ? Now, let's say browser started with the failed ip1 For how long will browser try ip1 ? If user hits "stop" while it waits for ip1, and then clicks refresh which IP will browser try ? What will happen when it times-out - will it start trying ip2 or give error ? (And if error, which ip will browser try when user clicks refresh). When user clicks refresh, will any browser attempt new DNS lookup ? Now let's assume browser tried working ip2 first. For the next page request, will browser still use ip2, or it may randomly switch ips ? For how long browsers keep IPs in their cache ? When browsers sends a new DNS request, and get SAME ips, will it CONTINUE to use the same known-to-be-working IP, or the process starts from scratch and it may try any of the two ? Of course it all may be browser dependent, and may also vary between versions and platforms, I'd be happy to have maximum of details. The purpose of this - I'm trying to understand what exactly users will experience when round-robin DNS based used and one of the hosts fails. Please, I'm NOT asking about how bad DNS load balancing is, and please refrain from answering "don't do it", "it's a bad idea", "you need heartbeat/proxy/BGP/whatever" and so on.

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• Laptop Overheating with Windows 8

  - by Dany Khalife

  I recently installed Windows 8 on my HP G62 Laptop and i have been noticing a very strange problem with it. Let alone, for lets say 5 minutes, without even touching it, it starts to heat up and it reaches about 60 degrees (Celsius) with absolutely no applications open (not just on desktop but overall). I dug in a little deep and found out that Maintenance was running when the computer was Idle, so i turned that off From the System's Task Scheduler, and while there i also turned off other services i did not need hoping that would solve the problem. So after a few days, i noticed that the average temperature of my laptop dropped from 55 to 48 degrees while working on Visual Studio. And when i thought the problem had disappeared, it still did show up, only not after 5 minutes, but more like 10 minutes... Here is what i have done so far: Replacing the thermal paste on the CPU and the fan and cleaning the fan (this was like 6 months ago) Using a laptop cooler Running a virus scan (i just formatted my laptop so it would be really weird if i already caught something but who knows) Right now, i believe it has something to do with my gfx driver (Even though it IS up to date, looking closely at the screen, i can see the pixels slowly refresh (kinda like watching static on TV) which i wasn't able to do on Windows 7. If you have any ideas, let me know. Thanks

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• Games, Windows 8.1 and 144Hz display

  - by Marioysikax

  So I have been having problems with few games after switching from 7 to 8.1, which seems to be related to my 144Hz monitor. Few examples: Shank, Shank 2, Blood of the Werewolf, Astebreed, the Sims 2 and Rayman Legends patch 1.2Had few other as well but it's been long and I have 600+ steam library. From those games at least the Sims 2 and Shank worked without any problems with same setup and Windows 7. So basically these games simply refuse to launch with basic setup. However if I plug 60Hz TV with HDMI instead everything magically starts to work. As for Astebreed and the Sims 2 using windowed mode seems to also work. As for Rayman Demo and version 1.0 works for some reason and 1.2 breaks settings menu. I have already tried contacting supports. EA support stated game simply shouldn't work with 8.1 at all (which is lie as it works with that TV and friend with 8 plays just fine), ubisoft support took few weeks and support said he will forward info for further processing, blood of the werewolf support had no idea what's going on and told me to just use my TV instead.Changing monitors refresh rate to 120Hz or forcing it to 60Hz doesn't do anything. I have DVI right now but I will try with DisplayPort when I get the cable. At PCGW Garrett said it may have something to do how listing resolutions work with 8 compared to earlier Windows versions but my googling skills don't bring anything up and compatibility mode for earlier windows version doesn't work either (not that I expected that to work). My system specs are on my steam profile. How do I get those work with my 144Hz monitor as well as possible future games having same problem? Downgrading to 7 would work but is far from practical and I don't own legit lisence for that one.

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• Arch Linux: eth0 no carrier - network fails at boot

  - by user905686

  The problem My computer is connected to a network where dhcp is required. So my network configuration in /etc/rc.conf looks like interface=eth0 address= netmask= broadcast= gateway= My deamons are DAEMONS=(!hwclock syslog-ng network netfs crond ntpd) With this configuration, Arch hangs at boot a long time at "Network" (Still it says "[done]", but after boot I have no connection). I found out two workaround: Workaround 1 remove network from deamons run mii-tool --reset eth0 and dhcpcd eth0 after boot (somehow it does not work when placing these commands in /etc/rc.local. Then dhcp work very quickly (because of the reset!). Before executing the first command, ip link show eth0 has "NO CARRIER" in output. Afterwards, it doesn´t. (Also, mii-tool first shows "no link", afterwards eth0: 10 Mbit, half duplex, link ok. Workaround 2 Change network configuration to interface=eth0 address=x.y.z.21 netmask=255.255.255.0 broadcast=xxx.y.z.255 gateway=x.y.z.254 whereas x, y, z build the specific adresses of the network (Though dhcp is used, I get a static ip). Add the commands mii-tool --reset eth0 and dhcpcd eth0 to /etc/rc.local Now network starts quickly at boot (though I don´t know if successfully), the commands in /etc/rc.local are executed and the connection is fine after login. What to do? So the problem seems to be that dhcpcd stucks at "wating for carrier" or sth. I do not like the workaround, because some deamons need network (though they seem to start). What can I do to have eth0 ready for dhcp at boot? Or is there another problem?

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