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• Wireless does not work on Ubuntu 9.04

  - by Yongwei Xing

  Hi all I install the Ubuntu 9.04 my old Lenovo Y520 laptop, the wirless does not work.My Wireless card is Intel Pro/wireless 2100 card. But I can not enable it. My wired card is working well. Does anyone meet it before. the ifconfig output is eth0 Link encap:Ethernet HWaddr 00:0a:e4:5f:6c:30 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:973 errors:0 dropped:0 overruns:0 frame:0 TX packets:1025 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:574701 (574.7 KB) TX bytes:169249 (169.2 KB) Interrupt:10 eth1 Link encap:Ethernet HWaddr 00:0c:f1:58:79:b5 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) Interrupt:10 Base address:0x8000 Memory:d0202000-d0202fff lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:8 errors:0 dropped:0 overruns:0 frame:0 TX packets:8 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:480 (480.0 B) TX bytes:480 (480.0 B) the output of iwconfig is eth1 unassociated ESSID:off/any Nickname:"ipw2100" Mode:Managed Channel=0 Access Point: Not-Associated Bit Rate:0 kb/s Tx-Power:off Retry short limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality:0 Signal level:0 Noise level:0 Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 I have another question. When my OS is 9.04, there is a icon about network connection on the panel at the top. After I upgraded to 9.10, that icon disappeared. How can I get that back? Best Regareds,

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• Network speed between a VM and another machine which is not residing on the same host, is 11MB/s at most

  - by Henno

  Problem Network speed between a VM and another machine which is not residing on the same host, is 11MB/s at most. Topology Facts ESXi5 version is 5.0.0.504890 VM has the latest Vmware Tools installed VM is using E1000 network driver Physical box has Win Srv 2008 R2 as the OS CrystalDiskMark says the drive on physical box can read/write 100MB/s vCenter is another vm on esx both vm and physical box are showing 1Gbps link speed Configuration Networking shows vmnic0 as 1000 Full NTttcp is a client/server tool from Microsoft for measuring pure network throughput Here's what I've done so far: Test1: VM is running Filezilla FTP Server (default settings, one user account made) Physical box is running Filezilla FTP Client (default settings) Physical box is uploading a big file to FTP server Transfer speed (as observed by Windows Task Manager on both machines): ~11MB/s (bad) Physical box is downloading that file from FTP server Transfer speed (as observed by Windows Task Manager on both machines): still ~11MB/s (bad) Could it be disk performance issue? Test2: Physical box is running ntttcpr.exe -a 6 -m 6,0,VM_IP_ADDRESS VM is running ntttcps.exe -a 6 -m 6,0,PHY_BOX_IP_ADDRESS Transfer speed (as observed by Windows Task Manager on both machines): ~11MB/s (bad) Could it be switch performance issue? Test3: physical box is running vSphere Client I open Summary Storage datastore Browse Datastore... from physical box and upload a file to datastore Transfer speed (as observed by Windows Task Manager on physical box): ~26-36MB/s (good) Could it be a vm specific issue? Test4: Installed ntttcp to another vm on the same esx server Measured network performance between vms on the same esx server with NTttcp Transfer speed (as observed by Windows Task Manager on physical box): ~90-120MB/s (excellent :) Test5: I have another esx server on the same site, connecting to the same datastore and same switch. Those two ESX servers have both 2 NICs. One NIC goes to switch while the other goes directly to the other ESX server. vMotioned one of the testing vms off to the other ESX host Measured network performance between vms on different esx servers with NTttcp Transfer speed (as observed by Windows Task Manager on physical box): ~11MB/s (bad) While I'm aware of these: ESXi 4.1 slow file transfer ESXi 5 network performance is slow Debian Etch and ESXi slow network speeds VMWare ESXi slow file copy to guest they did not help (or I must have been missed something)

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• 2010 cgi script failure

  - by Barry F

  Hi. I hope you can help, I'm just a beginner! I have listed a few extra details which may not be relevant. I upload cgi scripts onto local/personal directory on a Apache/2.2.10 server, using FTP95Pro in ASCII. The scripts execute correctly using perl on my web-server in a terminal session. Thus my code has no fatal syntax errors. Webpages 'action' each cgi script at /cgi-bin/. There are symbolic links which link system directory files to my local directory files. FollowSymLinks is enabled (unsure how). Permissions are correct (755). This set-up hasnt changed, apparently. The scripts have excuted perfectly for years, up to 2010. But now, in 2010, I have replaced working scripts with new script/files, now with exactly the same text, filename and permissions. Only the date (last modified) has changed. But now I receive a 500 Internal Server Error, and cannot determine why. My server administator assumes I have code errors. But code is unchanged since last year, and it runs fine (albeit no arguments) on web-server console using perl myscript.cgi Is there anything you can think of which may have changed ? I'm suspicious of the new decade. I think the server swapped from Linux to Windows OS last year, but my server administrator got it all working OK. Is there something unusual he may have missed, related to 2010 ? Thank you in advance

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• Vista Screen resolution Changes when Switching Users

  - by Benjol

  I regularly have a problem when switching between users in Vista - the screen resolution drops down to 800x600. If I try to set the resolution back to the maximum, it says nothing, but just keeps it at 800x600. I can set it back to an intermediate value. Otherwise I have to either restart the PC, or sometimes if I log off one of the users, I can then set the resolution back to max. Might it also have something to do with using sleep mode instead of performing regular shutdowns? I thought it might be related to the desktop background image taking up too much space, but even with plain colours, the problem still occurs. There is an enormous thread on this here, but not really any answers. From what I can gather from that thread, it isn't related to any particular applications, nor limited to a particular make of graphics card or monitor, so I don't think that including hardware details is useful. This is a very annoying problem, as it screws up my desktop and screen layout every single time. Has anyone here experienced this problem or found a solution? I've noticed that Windows Update has tried to install nVidia updates and apparently they've failed on several occasions. Not sure if that is of any relevance or not. UPDATE The last post on the thread: FWIW - I had this problem for about 2 years and wrote a number of posts in this thread in the past. It survived OS reinstallation, change of practically all of my hardware piece by piece (mobo, cpu, monitor, graphics card, memory, power supply...) I used to be affected by this annoying problem at least once every 24-48 hours. About 1.5 months ago I wiped out my 32 bit vista ultimate installation and installed Windows7 ultimate 64 bit from scratch and never saw this problem again. GOOD RIDDANCE. Vista was a pathetic piece of __ that felt like a flashback to the old [horrible] NT4/Windows95 days. I was seriously considering switching over to Apple/Mac OSX if this problem persisted.

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• Rails app returns HTTP 422 for new ServerAlias - Internet Explorer only

  - by Snips

  I have a long-standing Rails app running on Mac OS X (apache2). The set-up uses Apache virtual hosts and Passenger. The Rails app also uses HTTP Basic Authentication. I need to migrate the app from one url domain to another - with some overlap of both domain names being accessible simultaneously for a period. To do this, I've added the new domain name as a ServerAlias of the existing domain name in the Passenger Virtual Host config. I can now Browse the Rails app using both the legacy url, and the new url from any of Safari, Chrome, Firefox, or Internet Explorer. I can also 'HTTP post' updates to the Rails app using Safari, Chrome, or Firefox. All good. Except, attempts to post updates from Internet Explorer result in the Rails app rejecting the update, The Rails app log contains the message, ActionController::InvalidAuthenticityToken (ActionController::InvalidAuthenticityToken): I have other domains & aliases working just fine on this same machine. Any suggestions as to what is causing the Rails app to reject posts from IE would be appreciated.

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• SendMail not working in CentOs 6.4

  - by Kane

  I am trying to send e-mails from my CentOS 6.4 but it does not work. My knowledge about servers is quite limited, so I hope someone can help me. Here is what I did: First i tried to send an email using the "mail" command, but it was not in the OS so I installed it. # yum install mailx After that, I tried sending an email using the "mail" command, but it did not send anything. I checked it on the internet and I realized I needed an e-mail server like sendmail, so I installed it. # yum install sendmail sendmail-cf sendmail-doc sendmail-devel After that, I configured it following some tutorials. First, sendmail.mc file. # vi /etc/mail/sendmail.mc Commented out the next line: BEFORE # DAEMON_OPTIONS('Port=smtp, Name=MTA') dnl AFTER # dnl DAEMON_OPTIONS('Port=smtp, Name=MTA') dnl Check that the next lines are correct: # FEATURE(`virtusertable', `hash -o /etc/mail/virtusertable.db')dnl # ... # FEATURE(use_cw_file)dnl # ... # FEATURE(`access_db', `hash -T<TMPF> -o /etc/mail/access.db')dnl Update sendmail.cf # m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf Open the port 25 adding the proper line in the iptables file # vi /etc/sysconfig/iptables # -A INPUT -m state --state NEW -m tcp --dport 25 -j ACCEPT restart iptables and sendmail # service iptables restart # service sendmail restart So i thought that would be ok, but when i tried: # mail '[email protected]' # Subject: test subject # test content #. I checked the mail log: # vi /var/log/maillog And that is what I found: Aug 14 17:36:24 dev-admin-test sendmail[20682]: r7D8RItS019578: to=<[email protected]>, ctladdr=<[email protected]> (0/0), delay=1+00:09:06, xdelay=00:00:00, mailer=esmtp, pri=2460500, relay=alt4.gmail- smtp-in.l.google.com., dsn=4.0.0, stat=Deferred: Connection timed out with alt4.gmail-smtp-in.l.google.com. I do not understand why there is a connection time out. Am I missing something? Can anyone help me, please? Thank you.

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• USB Virus, "Program too big to fit in memory"?

  - by ApprenticeHacker

  I got an installer for a piece of software via usb from a friend.Now what was weird was that although my friend and I had the same OS, same brand of laptop and I had a newer version (though I don't think this quite matters), the installer was running properly for him but not for me. It just showed a command line window and exited. I ran it via a batch file in which I included "pause" after running it. Here's the screenshot: Later my friend called me and told me that it was the USB that was the problem. It had some kind of virus on it and it corrupted every executable or folder on it , and it renamed all the sub_files inside folders to some weird jargon. He had tried using another USB and the installer worked fine. Now the friend has (unfortunately) gone back to his city and I can't get the installer again from him. My question is: Is there any way to repair the installer executable and run it? and Do you think the virus has infected my PC? (I have run a system scan with my antivirus and it showed nothing but still I'm worried)

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• 802.11g -> wired ethernet bridging not working

  - by Malachi

  Usually people want to go the other direction, but I want to take our relatively fast and stable house 802.11g signal and bridge it to ethernet. I have tried using an Airport Express (the b/g flavor) and my i7 MacBook pro, both to no avail. Word is that the b/g flavor of This flavor of Airport Express maxes at firmware 6.3 which doesn't support this kind of bridging properly. However, I expected my MacBook pro to do the job with its "Internet Sharing" feature. Alas, although my wired PC does sort of see it, it doesn't work out. Strangely, using DHCP the PC receives the same IP address as my MBP uses on the network. Less strangely, but still surprisingly, the wired ethernet port on my mac registers as the IP address of the gateway when queried with IFCONFIG. It sort of makes sense that the mac would "pretend" to be the gateway, but the whole thing just isn't working and seems configured wrong - but all the docs I see say basically "OS X Internet Sharing: click it and go". What do I do? Do i really have to buy more hardware, even though I have plenty of would-be candidates for bridging? Incidentally, the host router originating the 802.11g signal is a belkin 802.11g router, and is documented to support WDS.

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• Cant kill process on Windows Server 2008!! - Thread in Wait:Executive State

  - by adrian

  I hope someone can help me with our issue we are having. We have a major issue with a process that we can not kill and the only way to get rid of the process is to reboot the machine. I have tried killing it from the normal task manager but no joy. I have tried killing it using the taskkill /F command from a command prompt and no joy. The command reports as sucessful but the process remains. I have tried to start task manager with system rights by calling "psexec -s -i -d taskmgr" and attempting to kill the process but no joy I have tried killing it from Process Explorer but again the process remains. I have tried creating a scheduled task that runs under the SYSTEM name to kill the task but that also does not kill it : schtasks /create /ru system /sc once /st 13:16 /tn test1 /tr "taskkill /F /PID 1576" /it Nothing I do will kill this process. Even logging off and logging back on will not kill this process. Using Process Explorer I notice that there is on stubborn thread that is in the Wait:Executive state. I have tried to kill this thread using Process Explorer but again no joy. We are using Windows Server 2008 R2 64-Bit. The server is brand new and windows is freshly installed. Now heres the thing. We have brought two identical servers from Dell with the same specs and the same OS installed and I can not replicate this issue on the other server. Only on this server, under certain circumstances does this server process hang and can not be restarted! I have also changed the compatability mode by setting it the process to "Windows 2003" but this has not helped. I have noticed in Process Explorer that DEP is turned on but im not sure this has got any bearing on the issue ot not. Please, can someone help??

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• Need help trying to diagnose Symmetrix SAN performance issues

  - by arcain

  I am helping to benchmark hardware for a new SQL Server instance, and the volume presented to the OS for the data files is carved from a set of spindles on a Symmetrix SAN. The server has yet to have SQL Server installed, so the only activity on the box is our benchmarking. Now, our storage engineers say that this volume and it's resources are dedicated to our new server (I don't have access to see the actual SAN config) however the performance benchmarks are troubling. For example, the numbers look good until suddenly, and randomly, we see in our IO benchmarking tool wait times of 100 seconds, and disk queue lengths of 255 in perfmon. This SAN has an 8 GB cache, plus there are other applications besides ours that use the SAN. I'm wondering if (even though the spindles for our volumes should be dedicated to us) the cache may be getting hammered during the performance testing, or perhaps the spindles our volumes are on aren't really dedicated to us. We're not getting much traction from our storage engineers in helping us track down the problem, so if anybody has experience with diagnosing a problem like this and would like to share insights and troubleshooting methodologies, I'd appreciate it.

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• Free, simple, configurable SOCKS5 server

  - by Pooria Azimi

  I've been looking (for the past 6-7 hours) for a fast, free and configurable SOCKS5 server. I haven't found anything that matches my needs. They are either too complicated, too bare-bones or simply buggy as hell. This is (all) I need: I want it to run on Linux (and also OS X, preferably) I want it to listen on localhost:8888 When my app (say wget.. or curl --socks5=localhost:8888) requests http://www.google.com/search?q=asd (or any other url - both http and https), I want it to fetch the page not from google's servers, but from http://localhost:4444/cached?uri=http://www.google.com/search%3Fq%3Dasd. Nothing more! I don't need caching, or anything else. I just want a SOCKS5 server, running locally, which redirects all queries to my own (local) server. It could be written in C, C++, Python, PHP, Perl, Node.js or any other language. I don't care, as long as it supports my (very limited) needs, or I can easily change the source to make it so. Thanks a lot

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• Desktop PC does not power up on power button

  - by hIpPy

  When I press the power button on my desktop, it does not power up completely. Before I press the power button, I see lights on the motherboard. Everything is normal. On power button press, the fans on the cpu, graphics card and motherboard start to spin a little for a second or two and then they stop. No beeps during this process. It has been doing this for a while now but it used to start up after some trials. Once it starts up, I have NO issues at all like random shutdowns so it is not an issue with OS. Update: I left the desktop off for a few days and it started. I'm just guessing here but it seems as if the PSU (Antec TP2-550ATX) is dying out and does not have enough power now - just a guess. It's an old desktop assembled in 2005 but I have maintained it well. Update: I always keep the desktop running and I never shut it down. During updates or manual restarts, it powers up without issues. I wonder if this sheds lights on the issue. Any idea how I can narrow down the issue? ex: if I can find if the PSU is dying etc. I'd really like to fix the issue. Please help. Thanks. Below is the complete configuration. DFI LAN-Party UT NF4 Ultra-D 6/23 {6.70}, Evercool EC-VC-RE 41/47C, AMD Opteron 170 2.0GHz {1.3.2.16} 1.312V 36/41C, ThermalRight SI-120, Panaflo 120×38mm OCZ Platinum 2×1GB 200MHz 2.66V 3-3-2-7 1T XFX 7800GTX 256MB 475/1250MHz {91.31}, Zalman VF900 Cu led 41/56C WD Caviar 320GB 7200RPM 16MB SATA 3Gb/s Antec TP2-550ATX Antec P180 WinXP sp3 Logitech MX310 Razer Mantis Speed BenQ FP91G+ 19" LCD 8ms DVI Creative Audigy2 ZS {4.42} BenQ DW1640 Logitech z-5300e 5.1 280W Legend: Driver versions: {} User settings: [] Voltage: V Wattage: W Temperature: C (Celsius) min/max

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• Metacity/Compiz not staring upon Login Ubuntu 10.10

  - by Ryan Lanciaux

  TLDR: As of this afternoon, I do not have a window manager when I login to Ubuntu 10.10. I would like to have window manager on login without needing to add to startup. Just started using linux again as my home OS. (Used it for a long time years ago but been on windows up until this past weekend) so this may be kind of n00b-ish :) Anyways, up until today, everything on my machine was running okay. I did not have compiz running as the default wm because I'm running NVidia Drivers and Xinerama (and as I understand Xinerama & Compiz don't work well together). I made no changes to my xorg / etc but today when I logged in, I had to manually start metacity from command line to get any window manager. Really not sure what would be causing this or what I can do to get it working again. My xorg.conf is available here: https://gist.github.com/845618. My default Window Manager is set to /usr/bin/metacity in Configuration Editor under /desktop/gnome/applications/window_manager. p.s. Any tips on how to run 3 monitors where I can move windows between screens without Xinerama would be appreciated but that's prolly for another thread :)

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• Apache reverse proxy with VirtualHost not serving a page

  - by Mr Aleph

  I have an Apache reverse proxy set to move requests to a Tomcat Applet. The config is similar to: <VirtualHost 100.100.100.100:80> ProxyPass /AppName/App http://1.1.1.1/AppName/App ProxyPassReverse /AppName/App http://1.1.1.1/AppName/App </VirtualHost> I also have a page called summary.html that exists on 1.1.1.1 as: http://1.1.1.1/AppName/summary.html When I browse directly to it I have no problem viewing it, however if I try to get there via the reverse proxy I get a blank page. Wireshark shows me a 503, but this one is coming from the Apache reverse proxy (IP 100.100.100.100) and not the Tomcat (IP 1.1.1.1). Should I add http://1.1.1.1/AppName/ to the config? How? I tried it but I get a blank page, however this one shows on the URL bar of the browser the internal IP of the Tomcat, so, no go. Help is appreciated. Thanks. EDIT: This is the dump from Wireshark: GET /AppName/ HTTP/1.1 Host: 100.100.100.100 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/534.52.7 (KHTML, like Gecko) Version/5.1.2 Safari/534.52.7 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Cache-Control: max-age=0 Accept-Language: en-us Accept-Encoding: gzip, deflate Connection: keep-alive HTTP/1.1 404 Not Found Date: Tue, 30 Jan 2012 09:08:51 GMT Server: Apache Content-Length: 1 Connection: close Content-Type: text/html; charset=iso-8859-1

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• Hadoop is not able to find JAVA_HOME properly

  - by Shekhar

  I am trying to run hadoop my Ubuntu OS. I have set JAVA_HOME variable in ~/.bashrc file to /usr/lib/jvm/jdk1.7.0_01/ but when I run hadoop namenode -format command it fails with following errors : shekhar@ubuntu:/usr$ hadoop namenode -format Warning: $HADOOP_HOME is deprecated. /host/Shekhar/Softwares/hadoop-1.0.0/bin/hadoop: line 321: /usr/jdk1.7.0_01/bin/java: No such file or directory /host/Shekhar/Softwares/hadoop-1.0.0/bin/hadoop: line 387: /usr/jdk1.7.0_01/bin/java: No such file or directory hadoop tries to locate java command at /usr/jdk1.7.0_01/bin/ path. Clearly somehow it missed /lib/jvm folder. I am not able to understand why and how this is happening. my echo $PATH command gives following output : shekhar@ubuntu:/usr$ echo $PATH /usr/lib/jvm/jdk1.7.0_01/bin:/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/lib/jvm/jdk1.7.0_01/bin:/host/Shekhar/Softwares/hadoop-1.0.0/bin If I run which java command I get following output : shekhar@ubuntu:/usr$ which java /usr/lib/jvm/jdk1.7.0_01/bin/java and echo $JAVA_HOME returns following output : shekhar@ubuntu:/usr$ echo $JAVA_HOME /usr/lib/jvm/jdk1.7.0_01 I would like to know why hadoop is taking JAVA_HOME path incorrectly. Please help...

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• Google bots are severely affecting site performance

  - by Lynn

  I have an aggregate site on a linux server that pulls in feeds from a universe of about 2,000 blogs. It's in Wordpress 3.4.2 and I have a cron job that is staggered to run five times an hour on another server to pull in the stories and then publish them to the front page of this site. This is so I didn't put too much pressure all on one server. However, the Google bots, which visit a few times every hour bring the server to its knees in the morning and evenings when there is an increase in traffic on the site. The bots have something like 30,000 links to follow at this point. How do I throttle the bots to simply grab the new stories off the front page and stop there? EDIT- Details of my server configuration: The way we have this set up is the server that handles all the publishing is an unmanaged instance via AWS. It mounts the NFS server and connects to the RDS to update content, etc. You get to this publishing instance via a plugin that detects the wp-admin link and then redirects you into there. The front end app server also mounts the NFS and requests data from the RDS. It is the only one that has the WP Super Cache on it.... The OS is Ubuntu on the App server and the NFS runs CentOs. The front end is Nginx and the publishing server is Apache.

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• Windows 7 loses correct time zone upon reboot

  - by Android Eve

  I have a standard PC running Windows 7 Ultimate (64-bit). For some reason, it refuses to keep the correct time zone (the BIOS battery is OK) when restarted. Note (1): The Time zone is correct. The "Internet Time" tab also shows "this computer is set to automatically synchronize with 'time.windows.com'. When I click the 'Change settings...' button, the 'Synchronize with an Internet time server' checkbox is checked. Still, upon reboot, the time is skewed by 6 hours... and doesn't correct itself even after waiting hours for this "automatically synchronize" to occur. Note (2): The BIOS time is set to local (i.e. not UTC). When I restart Windows 7 without booting to the other OS installed in dual-boot config (Ubuntu Linux), it seems to correctly remember the time. This may explain immediate time upon reboot, but it doesn't explain why Windows 7 won't automatically 'Synchronize with an Internet time server' even after an hour. Why is this happening and how do I correct this?

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• Application for time and project management

  - by user10826

  I want to improve the way I organize my projects/tasks/schedule What I do now is: keep an excel sheet with the name of the most important tasks/projects, I look at it at the beginning of each day and decide the ones I will focus on on iCal I write down events for each day, or for a concrete time (13 to 14 hours). I set up each day the tasks I want to accomlish, and allocate them hours I use Things (culture code) to keep info about tasks and projects not very important and which are not time allocated yet (GTD name = someday) I use Mail on Mac and create folders for the mails I want to process with the name of the different projects I save the main info for each project on freemind maps My system works well at the moment but it is pretty complicated to use. I want to make it better and I am looking for something with these requirements: must be 100% offline accessable it should use as less programs/resources as possible, ideally just one program should be able to manage all my info I can use the GTD methodology mixed with priorities and I can allocate each task converted to event on my calendar I can have different daily/weekly, etc views on a calendar to see the "big picture" must run on mac os x leopard price does not matter, I will pay for this So, according to your experience, can you recommend me something like this? Thanks

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• ESXi 5 Guests will not boot

  - by Adrian

  I have a problem with Guests not booting under VMWare ESXi 5.0 on my IBM x3550M3 server. Note: Investigation eventually determined that problem was with the VMware client on a Lenovo Edge laptop, the only Windows box available in a Linux IT shop. vSphere Client v4 and v5 duplicated behavior on the Lenovo Edge. As indicated in the comment to the accepted answer, replacing the workstation with one using different video was the "fix" for this particular issue. The ESXi host boots just fine. The Client connects just fine. Guests can be configured but do not successfully boot. The initial guest memory consumption jumps up to 560MB and drops down to 40MB after a few seconds. Initial CPU usage is 1 full CPU (3000Ghz per the chart) and immediately drops downm to 29Mhz. Guests do not display any output in the Console tab but show a state of 'Powered On'. No errors in the Events tab. Switching Guest from BIOS to EFI makes no difference. VMs are listed as Version 7 and the behavior is duplicated across all availabled Guest OS flavors. Problem also duplicated when server is booted up in Legacy Only mode. Logs do not contain anything particularly suspicious. Edit: No firewalls, routers, or VLANs in between the client and server. Edit 2: We have tried to Boot Guest into BIOS screen at Next Boot checkbox in the Guest Setting. Was not successful. Edit 3: 500GB datastore with 1 40GB VM on it. Plenty of space. Edit 4: Guests copied from my old ESXi 4 server DO NOT boot on the ESXi 5 system. Initially it complains about too little Video RAM being configured for the default 2500x1600, but it still doesn't work properly even after I bump the Video RAM settings or switch it to Auto-Detect.

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• Can't authorize a server for Amazon RDS

  - by Parris

  We are attempting to slowly migrate a website over to AWS among other things. We decided the first thing to move was the database. We have some dedicated server with a different hosting provider. We only have one IP. I am having trouble authorizing the ip so that the old server can connect to RDS. It simply hangs for a while while using the mysql cli, then responds: ERROR 2003 (HY000): Can't connect to MySQL server on 'db.address.us-east-1.rds.amazonaws.com' (110) It did work on my laptop though. I am not quite sure what is wrong. I have a feeling I don't quite understand CIDR/IP. I simply took the ip address and tacked on /32 at the end. Then I gleaned some information that it also has to do with subnet mask? ifconfig reports: 255.255.255.0 I found a calculator and the IP changed a bit and had /24 at the end. That still didn't work. One other note... perhaps i dont know enough about the differences between OS. The hosting provider is using centOS, while our development machines are all ubuntu. Any insight would be extremely helpful! THANKS :)

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• What could cause an 101 Error in WAMP under Windows 7 ?

  - by Brayn

  Hey, I'be been using WAMP for local development for quite a while now but lately I've been getting an Error 101 message when I browse localhost sites. It's possible for this to have appeared after the last WAMP update but I'm not 100% sure on this. If I try again and again, after several page refreshes it works but it's really annoying! The exact error message is: Error 101 (net::ERR_CONNECTION_RESET): Unknown error. This is my configuration: OS: Windows 7 Apache: 2.2.11 PHP: 5.2.9-2 WAMP: 2.0 Also the local scripts connect to a remote MySQL server, they don't use the local MySQL(I don't know if it matters, just though I let you know). I've been looking into the apache logs and I've found the following. It seems that the apache server keeps restarting and I can't figure why: [Wed Oct 14 13:52:30 2009] [notice] Parent: child process exited with status 255 -- Restarting. [Wed Oct 14 13:52:30 2009] [notice] Apache/2.2.11 (Win32) PHP/5.2.9-2 configured -- resuming normal operations [Wed Oct 14 13:52:30 2009] [notice] Server built: Dec 10 2008 00:10:06 [Wed Oct 14 13:52:30 2009] [notice] Parent: Created child process 6784 [Wed Oct 14 13:52:31 2009] [notice] Child 6784: Child process is running [Wed Oct 14 13:52:31 2009] [notice] Child 6784: Acquired the start mutex. [Wed Oct 14 13:52:31 2009] [notice] Child 6784: Starting 64 worker threads. [Wed Oct 14 13:52:31 2009] [notice] Child 6784: Starting thread to listen on port 80. [Wed Oct 14 13:52:32 2009] [notice] Parent: child process exited with status 255 -- Restarting. [Wed Oct 14 13:52:33 2009] [notice] Apache/2.2.11 (Win32) PHP/5.2.9-2 configured -- resuming normal operations [Wed Oct 14 13:52:33 2009] [notice] Server built: Dec 10 2008 00:10:06 [Wed Oct 14 13:52:33 2009] [notice] Parent: Created child process 3572 [Wed Oct 14 13:52:33 2009] [notice] Child 3572: Child process is running [Wed Oct 14 13:52:33 2009] [notice] Child 3572: Acquired the start mutex. [Wed Oct 14 13:52:33 2009] [notice] Child 3572: Starting 64 worker threads. [Wed Oct 14 13:52:33 2009] [notice] Child 3572: Starting thread to listen on port 80. Also I've checked Windows Firewall and disabled any other protection that I have on this computer with no improvement. Thanks!

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• SQLSTATE[HY000]: General error: 2006 MySQL server has gone away

  - by Barkat Ullah

  Server details: RAM: 16GB HDD: 1000GB OS: Linux 2.6.32-220.7.1.el6.x86_64 Processor: 6 Core Please see the link below for my # top preview: I can often see the error mentioned in title in my plesk panel and my /etc/my.cnf configuration are as below: bind-address=127.0.0.1 local-infile=0 datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock user=mysql max_connections=20000 max_user_connections=20000 key_buffer_size=512M join_buffer_size=4M read_buffer_size=4M read_rnd_buffer_size=512M sort_buffer_size=8M wait_timeout=300 interactive_timeout=300 connect_timeout=300 tmp_table_size=8M thread_concurrency=12 concurrent_insert=2 query_cache_limit=64M query_cache_size=128M query_cache_type=2 transaction_alloc_block_size=8192 max_allowed_packet=512M [mysqldump] quick max_allowed_packet=512M [myisamchk] key_buffer_size=128M sort_buffer_size=128M read_buffer_size=32M write_buffer_size=32M [mysqlhotcopy] interactive-timeout [mysqld_safe] log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid open_files_limit=8192 As my server httpd conf is set to /etc/httpd/conf.d/swtune.conf and the configuration is as below: at prefork.c: <IfModule prefork.c> StartServers 8 MinSpareServers 10 MaxSpareServers 20 ServerLimit 1536 MaxClients 1536 MaxRequestsPerChild 4000 </IfModule> If I run grep -i maxclient /var/log/httpd/error_log then I can see everyday this error: [root@u16170254 ~]# grep -i maxclient /var/log/httpd/error_log [Sun Apr 15 07:26:03 2012] [error] server reached MaxClients setting, consider raising the MaxClients setting [Mon Apr 16 06:09:22 2012] [error] server reached MaxClients setting, consider raising the MaxClients setting I tried to explain everything that I changed to keep my server okay, but maximum time my server is down. Please help me which parameter can I change to keep my server okay and my sites can load fast. It is taking too much time to load my sites.

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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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• Linux - preventing an application from failing due to lack of disk space [migrated]

  - by Jernej

  Due to an unpredicted scenario I am currently in need of finding a solution to the fact that an application (which I do not wish to kill) is slowly hogging the entire disk space. To give more context I have an application in Python that uses multiprocessing.Pool to start 5 threads. Each thread writes some data to its own file. The program is running on Linux and I do not have root access to the machine. The program is CPU intensive and has been running for months. It still has a few days to write all the data. 40% of the data in the files is redundant and can be removed after a quick test. The system on which the program is running only has 30GB of remaining disk space and at the current rate of work it will surely be hogged before the program finishes. Given the above points I see the following solutions with respective problems Given that the process number i is writing to file_i, is it safe to move file_i to an external location? Will the OS simply create a new instance of file_i and write to it? I assume moving the file would remove it and the process would end up writing to a "dead" file? Is there a "command line" way to stop 4 of the 5 spawned workers and wait until one of them finishes and then resume their work? (I am sure one single worker thread would avoid hogging the disk) Suppose I use CTRL+Z to freeze the main process. Will this stop all the other processes spawned by multiprocessing.Pool? If yes, can I then safely edit the files as to remove the redundant lines? Given the three options that I see, would any of them work in this context? If not, is there a better way to handle this problem? I would really like to avoid the scenario in which the program crashes just few days before its finish.

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• Transferring an SQL Processor License to a virtual hosted environment

  - by Andrew Shepherd

  My company is currently hosting a service in-house, and we want to move to an externally hosted environment. We would then be using a virtual server. I understand that this might be spread across multiple machines, but from my perspective as a customer, this layer is abstracted away - I shouldn't know or care about the hardware that the OS is hosted on. We have a licensed edition of SQL Server 2008. This is one Processor license. Will it be a violation of the licensing agreement to use this in a virtual environment. From the reference guide here it says When licensed Per Processor With Workgroup, Web, and Standard editions, for each server to which you have assigned the required number of per processor licenses, you may run, at any one time, any number of instances of the server software in physical and virtual operating system environments on the licensed server. However, the total number of physical and virtual processors used by those operating system environments cannot exceed the number of software licenses assigned to that server For enterprise edition there is an added option: if all physical processors in a machine have been licensed, then you may run unlimited instances of SQL server 2008 in one physical and an unlimited number of virtual operating environments on that same machine. I'm having trouble getting my head around this. Would I theoretically have to get a license for every processor in this virtual environment (which is effectively impossible because I have no way of knowing how many processors there actually are)? Or can I just say that it's hosted on one "virtual" server, so that's OK?

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