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• Old notebook internal display randomly not recognized

  - by jfcfar

  I have an old Acer TM4001 notebook. If the laptop is powered-off, with the lid closed, when I power it on, it generally works. Then, without touching anything, if I reboot the computer the internal display wil not work anymore. To make it working again I need to shut down the pc, close and reopen the lid and then turn it on. If I close and reopen the lid if it is not working after power the pc on, it won't work. When the screen is working, closing and opening it has no effect (the data cable seems ok). The external monitor always works as expected: If the internal display is not detected, the external will be the main (and only) display. This is not OS-related. When the screen is not working I cannot see the POST. What could be the cause for this?

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• How to configure mysqldump to avoid max_allowed_packet error

  - by Leopd

  Honestly it baffles me that with a completely default installation of mysql if I run mysqldump with default parameters it generates a SQL file that can't be imported into another completely default installation of mysql. From what I can gather it's got something to do with the max_allowed_packet setting and/or the net_buffer_length setting. I've read a bunch about this, and tried tweaking it a bunch of ways on both the export and import sides, but it still doesn't work. I keep getting the packet too big error on import. From everything I've read, here's my best guess: mysqldump --net_buffer_length=50000 myschema > giant_file.sql Because I read here that mysqldump refers to max_allowed_packet as net_buffer_length because ... uhh ... anyway. Then to import mysql --max_allowed_packet=999999 myschema < giant_file.sql But this still doesn't work. How do I export / import the database???

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• Port forwarding not working?

  - by rphello101

  I'm trying to set up an Apache Server to be accessed publicly. I'm using a Netgear R4500 router hooked up to a Motorola SB6121 modem. I can access my server on my computer by typing in my IP address. After following the instructions to forward port 80 so I can access the server from other computers, it does not work (see image). I get "This webpage is not available". I am forwarding to the IP address of my computer. Using this Network Port Scanner Tool, it says "80/tcp filtered http", which, as I understand it, means forwarding did not work correctly. In my Apache httpd file, I have: ServerName 192.168.1.13:80 and Listen 192.168.1.13:80 Anyone know what's wrong or have something I can try? click to enlarge

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• Beginners advice on Small business network disk(s)

  - by Rob

  We are having 10 PCs used by various user and presently use one network disk (a LaCie NAS) for all our data. Everything is Windows Vista and our collective IT hardware knowledge is minimal. This worked well generally. However, recently the disk freqently loses connection from the network (2-3 times per week) and the only way back seems to be the "turn it off and back on" trick. This obviously cant be any good for the disk. I understand that there are various more sophisticated ways of storing data and was wondering what people would recommend. One of the worries is obviously disk failure (either in part or as a whole) and the lack of continued availability due to network issues. I would guess that a disk which replicates data wouldnt work as a sole solution due to the network connection, but dont know what hardware (and/or software) would/could work in our case. In terms of size, we are looking at very small amounts, ie. less than 500 GB in total.

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• Stop jucheck from running

  - by Ken

  I've installed Java on Windows Vista, and every day I get a Vista security warning asking me if I want to run "jucheck". Apparently this is the Java automatic updater. Well, I don't want it to run on its own, ever. I cancel it, and quit it. I right-click on the taskbar and unclick "Check for Updates Automatically", and then click "Never Check", and "Apply". And yet, it never remembers this setting. If I come back to the "Java Control Panel" right after clicking "OK", the very same box is checked again, all on its own. Is there some way to kill jucheck once and for all? If I simply delete jucheck.exe, will Java (other than the automatic check) still work, and will manual updates still work, and will it stop even trying to update every morning?

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• Is there a way to correct wrongly typed password / abort the operation while on password prompt in the console in MINGW32?

  - by jakub.g

  I sometimes mistype a password when being asked for it, e.g. by Git when pushing to remote repository. The password is not displayed (even masked as asterisks) in the console. Is there a way either to correct the password, or to abort the operation? Backspace for editing and CtrlC for aborting do not seem to work. I want to save some time instead of waiting for the remote authentication to fail, or providing a bad password, then Enter, CtrlC. Edit: Unfortunately CtrlU doesn't work for me (MINGW32 @ Windows XP). Any other guesses?

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• Exchange 2010 Internal Auto Discover Migrate away from current .local DNS name

  - by Bryan

  We have an Exchange 2010 Server, running within our Active Directory domain, with an internal hostname of server.example.local. The server is configured for Exchange anywhere, but currently has a self signed certificate with a name of server.example.local installed. Internally, clients connect and work fine, but externally, we are having certificate errors as you would expect. I'm about to purchase a UCC SSL Certificate to install on the server with all the relevant SANs on the certificate to correct this, but due to obvious problem obtaining a trusted cert with .local as a subject alternative name, I'm looking to configure clients on the internal network so that they don't use any reference to the .local hostname. I've configured our external DNS name for the server as exchange.example.com, and have created an CNAME for autodiscover.example.com which also (correctly) points to exchange.example.com. I've also configured internal DNS records for these two hostnames which point to the internal interface of the same server. I don't anticipate any problems here. I'm now trying to reconfigure Auto Discover internally, so that Outlook attempts to connect to exchange.example.com. I've followed the steps in KB940726 to prepare for this, and this appeared to work fine. No errors were generated and I was able to verify the CAS name in AD using ADSI edit. I've just tried testing this with a newly created test user account complete with a new Exchange mailbox, and Outlook 2007 connects fine on the internal network, but looking deeper in the Exchange profile, Outlook is still resolving the server name as server.example.local. Could it be the self signed cert, that is causing Outlook to display the server name as server.example.local, or is there still something wrong with my internal autodiscover configuration? Edit I've proven it isn't the certificate that is responsible for outlook returning server.example.local, by installing another self certified certificate with a name of test.example.com. When creating a new outlook profile, I get the mismatch error I'm expceting, but after accepting the cert, and finishing the config of the Outlook profile, again it still shows server.example.local as the server name. This means that if I were to purchase the UCC cert now, that external client would work fine, but internal clients would show a certificate name mismatch. Any ideas where to start diagnosing this?

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• QR vcard with a photo

  - by Cayetano Gonçalves

  I am about to get a ton of business cards printed from my new corporation, and I am allowed to have a QR code on it, and I would really like to be able to add a photo to be attached to the vcard. I know in the raw vcard you can add a photo like this: BEGIN:VCARD VERSION:4.0 N:Gump;Forrest;;; FN: Forrest Gump ORG:Bubba Gump Shrimp Co. TITLE:Shrimp Man PHOTO:http://www.example.com/dir_photos/my_photo.gif TEL;TYPE=work,voice;VALUE=uri:tel:+1-111-555-1212 TEL;TYPE=home,voice;VALUE=uri:tel:+1-404-555-1212 ADR;TYPE=work;LABEL="42 Plantation St.\nBaytown, LA 30314\nUnited States of America" :;;42 Plantation St.;Baytown;LA;30314;United States of America EMAIL:[email protected] REV:20080424T195243Z END:VCARD But I can't find any way to include the photo field into a QR code, any suggestions would be greatly appreciated.

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• SSH: Port Forwarding, Firewalls, & Plesk

  - by Kian Mayne

  I edited my SSH configuration to accept connections on Port 213, as it was one of the few ports that my work firewall allows through. I then restarted sshd and everything was going well. I tested the ssh server locally, and checked the sshd service was listening on port 213; however, I still cannot get it to work outside of localhost. PuTTY gives a connection refused message, and some of the sites that allow check of ports I tried said the port was closed. To me, this is either firewall or port forwarding. But I've already added inbound and outbound exceptions for it. Is this a problem with my server host, or is there something I've missed? My full SSH config file, as requested: # $OpenBSD: sshd_config,v 1.73 2005/12/06 22:38:28 reyk Exp $ # This is the sshd server system-wide configuration file. See # sshd_config(5) for more information. # This sshd was compiled with PATH=/usr/local/bin:/bin:/usr/bin # The strategy used for options in the default sshd_config shipped with # OpenSSH is to specify options with their default value where # possible, but leave them commented. Uncommented options change a # default value. Port 22 Port 213 #Protocol 2,1 Protocol 2 #AddressFamily any #ListenAddress 0.0.0.0 #ListenAddress :: # HostKey for protocol version 1 #HostKey /etc/ssh/ssh_host_key # HostKeys for protocol version 2 #HostKey /etc/ssh/ssh_host_rsa_key #HostKey /etc/ssh/ssh_host_dsa_key # Lifetime and size of ephemeral version 1 server key #KeyRegenerationInterval 1h #ServerKeyBits 768 # Logging # obsoletes QuietMode and FascistLogging #SyslogFacility AUTH SyslogFacility AUTHPRIV #LogLevel INFO # Authentication: #LoginGraceTime 2m #PermitRootLogin yes #StrictModes yes #MaxAuthTries 6 #RSAAuthentication yes #PubkeyAuthentication yes #AuthorizedKeysFile .ssh/authorized_keys # For this to work you will also need host keys in /etc/ssh/ssh_known_hosts #RhostsRSAAuthentication no # similar for protocol version 2 #HostbasedAuthentication no # Change to yes if you don't trust ~/.ssh/known_hosts for # RhostsRSAAuthentication and HostbasedAuthentication #IgnoreUserKnownHosts no # Don't read the user's ~/.rhosts and ~/.shosts files #IgnoreRhosts yes # To disable tunneled clear text passwords, change to no here! #PasswordAuthentication yes #PermitEmptyPasswords no PasswordAuthentication yes # Change to no to disable s/key passwords #ChallengeResponseAuthentication yes ChallengeResponseAuthentication no # Kerberos options #KerberosAuthentication no #KerberosOrLocalPasswd yes #KerberosTicketCleanup yes #KerberosGetAFSToken no # GSSAPI options #GSSAPIAuthentication no GSSAPIAuthentication yes #GSSAPICleanupCredentials yes GSSAPICleanupCredentials yes # Set this to 'yes' to enable PAM authentication, account processing, # and session processing. If this is enabled, PAM authentication will # be allowed through the ChallengeResponseAuthentication mechanism. # Depending on your PAM configuration, this may bypass the setting of # PasswordAuthentication, PermitEmptyPasswords, and # "PermitRootLogin without-password". If you just want the PAM account and # session checks to run without PAM authentication, then enable this but set # ChallengeResponseAuthentication=no #UsePAM no UsePAM yes # Accept locale-related environment variables AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT AcceptEnv LC_IDENTIFICATION LC_ALL #AllowTcpForwarding yes #GatewayPorts no #X11Forwarding no X11Forwarding yes #X11DisplayOffset 10 #X11UseLocalhost yes #PrintMotd yes #PrintLastLog yes #TCPKeepAlive yes #UseLogin no #UsePrivilegeSeparation yes #PermitUserEnvironment no #Compression delayed #ClientAliveInterval 0 #ClientAliveCountMax 3 #ShowPatchLevel no #UseDNS yes #PidFile /var/run/sshd.pid #MaxStartups 10 #PermitTunnel no #ChrootDirectory none # no default banner path #Banner /some/path # override default of no subsystems Subsystem sftp /usr/libexec/openssh/sftp-server

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• how to stream audio and video files, but use any media player on Windows (without using Windows file

  - by RamyenHead

  I want to access and play media files on machine S (Windows XP) from machine C (Windows XP). Using Windows File Sharing ("share this folder" stuff), if it works, I would share the folder containing media files on machine S, and I would be able to play media files, sitting in front of C, using any media player I want. Windows somehow ensures that the remote files behave like local files. But Windows file sharing won't work for me, is there any alternative? If two machines were both Linux, I would install an SSH server on S and use Nautilus from C to access and play media files. The reason why I can't use Windows file sharing is, my campus use two different subnets, I have S and C on different subnets and it seems that the firewall governing the whole network in campus doesn't allow file sharing between different subnets. I tried changing Windows Firewall settings on S to allow C in, it still wouldn't work, so it must be the other firewall.

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• Multiple servers acting like a single one with all the hardware?

  - by marc.riera

  Hello, by now I have 10 servers for hpc, power computing oriented. My users need to launch several processes using qmake. The users are used to work with ubuntu 9.10, and the software from the repositories is switable for them. I've deployed ubuntu 9.10 to all 10 servers (pxe rocks). By now we work with parallel-ssh and cluster-ssh, which allows as to launch the same process to all servers. With this tools this tools the servers remain as independent but with the same software and the same launched command. Now we would like to go to next step and see all the servers as a single one with all the resources from the other 9 as if was its resources. The difference would be substantial in time to process and also time to design the command to launch. Any advice on wich software to use will be very useful? Thanks

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• Finding the most common errors in event logs using Powershell.

  - by Paul

  I have the event logs for one of our servers locally in .evtx format. I can load the log file into PS using the command: Get-WinEvent -Path D:\Desktop\serverlogs.evtx What I would like to do is on the Message field group events where the text matches by a certain percent (say 80% the same). As we have stacktraces for errors in the details which will be the same, but we also log the client's IP, url that was accessed which will likely be different. I want to group them so that I can work out the most common errors to prioritize fixing them and as there are 25,000+ errors in the log file I would rather not do it manually. I think I can work out how to do most of this, but am not sure how I could do the 'group fields which are mostly the same' part, does powershell have anything like this built in?

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• TCP connection stuck in SYN_RECV state despite ACK received, Linux 2.6.18, embedded, ARM

  - by waynix

  My client cannot connect to my protocol port (TCP) after some network glitches, even though all other protocols (telnet/HTTP/FTP) work fine. netstat shows that my server is listening and tcpdump on the server shows all 3 packets are exchanged: 18:29:16.578964 IP 10.9.59.10.3355 10.9.43.131.5084: S 2602965897:2602965897(0) win 65535 <mss 1460,nop,nop,sackOK> 18:29:16.579107 IP 10.9.43.131.5084 10.9.59.10.3355: S 3464857909:3464857909(0) ack 2602965898 win 5840 <mss 1460,nop,nop,sackOK> 18:29:16.579284 IP 10.9.59.10.3355 10.9.43.131.5084: . ack 1 win 65535 But somehow netstat -t shows the connection still in SYN_RECV, as if the ack is not seen by the TCP state machine. I have to restart my server to get it to work. syncookie is not enabled, and I know from client code behavior and tcpdump that there is no SYN flooding. Help much appreciated.

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• Cannot boot from a hard drive

  - by Martin Melka

  I have a problem booting from a hdd. I used to have it as my main drive before I bought an SSD, so I had been able to boot from it. But for some reason, now, half a year later, I can't get it to work. I completely erased it, deleting data and partitioning (using EASEUS Partition Master), then I installed Kubuntu (without changing anything in the installer), but it simply won't boot up. It always boots the drive with Windows and when I unplug this drive, it only gives me an error "PXE-E61: Media test failure, check cable", I guess it's trying to boot from LAN. I tried installing the system on a freshly deleted drive, without any other drives plugged in the pc, but the problems persist. This is how the drives look now (first one has Windows 7 installed, the second one Kubuntu): I am lost. I mean, after doing a fresh wipe and a clean install without altering anything, it should work. But it doesn't. What can be wrong here? Thanks

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• Does Windows 7 support multiple simultaneous nVidia graphics cards with different drivers?

  - by mckenzieg1

  On one of my dev machines at work (currently running XP), I have two nVidia graphics cards: Quadro NVS 440 (my original card, for my three primary monitors) GeForce GTX 275 (just added, for CUDA development) I can get both cards to work OK by installing the latest GeForce drivers, but I get some annoying-but-not-crippling display artifacts on the Quadro's screens (mostly scattered black rectanges where repainting fails for a few bits of UI in certain applications). Under XP, this seems to be the best I can do. I can use Device Manager to supposedly install different nVidia drivers for the two cards (the latest Quadro drivers for the NVS, the latest GeForce drivers for the GTX), but I actually end up with the same driver for both, because the driver dlls all have the same names and get installed on top of one another in the system directory. I have read that Win7 has a new video driver architecture that better supports multiple heterogeneous cards. Does anyone know if that will handle my scenario? If so, it will give me a compelling reason to get that machine on Win7 ASAP.

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• Git clone on an ovh host server

  - by newben

  I want to do a git-clone from an ssh connection, on an ovh host-server, but it does not work: Here's the command I entered: git clone ssh :/ / [email protected] / www / (and all variations /. Git / www / .git, / www / .git / ... ) This is the message that I invariably get: fatal: '/ www': unable to chdir or not a git archive fatal: The remote end hung up unexpectedly Moreover, the command git clone "ssh :/ / [email protected] / ~ / forumdesthinktanks.git" responded with: Permission denied, please try again. [email protected] 's password: While the ftp password is correct. Finally, the commands git clone ssh :/ / [email protected] /. Git and git clone ssh :/ / [email protected] / ~ / forumdesthinktanks.git do not work (until the terminal's time out). I'm using a terminal from my Mac.

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• Same problem as above.

  - by ken

  Auto detect or selecting encoding from menu do not work. Apple site works though.

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• Multiple email accounts from the same server in Emacs Gnus

  - by docgnome

  I'm trying to set up Gnus to use both my gmail accounts but I can only ever get one at a time to show up in the list of folders. (setq gnus-select-method '(nnimap "[email protected]" (nnimap-address "secure.emailsrvr.com") (nnimap-server-port 993) (nnimap-stream ssl))) (setq gnus-secondary-select-methods '((nnimap "[email protected]" (nnimap-address "imap.gmail.com") (nnimap-server-port 993) (nnimap-stream ssl)) (nnimap "[email protected]" (nnimap-address "imap.gmail.com") (nnimap-server-port 993) (nnimap-stream ssl)))) That is the relevant portions of my .gnus file. It prompts me for three username passwords on startup. After I enter all three, I can access my work account and the gmail account that I enter the creds for second. This is really annoying! Any ideas?

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• Backup Exec backup-to-disk folder creation - Access denied

  - by ewwhite

  I'm having a difficult time creating a backup-to-disk folder in Symantec Backup Exec 12.5 and Backup Exec 2010. The backend storage is a Nexenta/ZFS-based NAS filer sharing the volume via CIFS. I've also seen the issue on other *nix-based NAS devices. I've attempted mapping the drive, providing the full paths to the folder, etc. I can browse to the share just fine from within Windows, but Backup Exec fails to create the B2D folder with different variants of a Unable to create new backup folder. Access denied error. I've attempted creating service accounts in Backup Exec to handle the authentication, but nothing seems to work. What's the key to making this work?

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• MacPro will freeze after first startup and first time screen saver activates

  - by Rob Segal

  I've run into a bizarre situation every time my MacPro first starts up in the morning when I get to work and the screen saver activates for the first time. When I try to deactivate the screen saver hitting the keyboard or mouse nothing will happen. At best I will get one of the following... Able to move the mouse but clicking does nothing Login prompt will show up but typing on the keyboard does nothing At worst the screen will be fully locked. In all cases I will have to reboot my machine to get it to work again. After this initial restart the machine is fine for the rest of the day. Anyone encountered something like this before?

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• How to properly store dotfiles in a centralized git repository

  - by asmeurer

  I'd like to put all my dotfiles (like .profile, .gitconfig, etc.) in a central git repository, so I can more easily keep track of the changes. I did this, but I would like to know how to properly handle keeping them in sync with the actual ones in ~/. I thought that you could just hard link the two using ln, but this does not seem to work as I expected, i.e., if I edit one file, the other does not change. Maybe I misused the ln command, or else I misunderstand how hard links work. How do people usually do this? Judging by GitHub, it's a pretty popular thing to do, so surely there's a seamless way to do it that someone has come up with. By the way, I'm on Mac OS X 10.6.

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• Self-hosted browser-based remote desktop script?

  - by rlsaj

  I need a self-hosted browser based remote desktop script that will connect me from any PC to my work PC. I need to either host this script within my own dedicated hosting or on my work PC. The PC that I need to remote into is always the one PC (Win7) and the IP never changes, and I have access to the Router/Firewall within. I have tried many remote desktop services and applications - LogMeIn, Team Viewer, (Ultra/Tight) VNC, GoToMyPC and iTeleport Connect and even Windows Remote Desktop - and the web services (or ports) are blocked at whatever free wi-fi/hotel/coffee shop I am at. Note that I will need to be able to access this from any PC, so I won't be able to install any applications (or use any portable software) - hence my thinking that it will need to be browser based on a standard (not blocked) port. If I can set up a web based remote desktop application - really a homebrew LogMeIn - then I should solve my problem. What is the best option here?

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• Exim redirect all unexisting accounts for local domains to a specific account

  - by tntu

  I want to route all incoming emails for local domains only to a single account if an account is not setup for that user. I would also like each email to be written in it's own file in user folder. I have a catchall user with /home/catchall/ path where I have a mail folder made for this but so far emails wither fail to deliver (thus my rule did not work) or they do deliver to /etc/mail/catchall file. I have been trying to put something together from the Exim configuration but so far nothing seem to work. http://exim.org/exim-html-current/doc/html/spec_html/ch20.html

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• Squid Proxy Server: limit total bandwidth

  - by Pitto

  Hello my dear friends! We have a marvellous squid proxy with dansguardian for filetering and they both work just great. Is there any easy way to limit the total bandwidth usage? I'd like to set the max amount of squid users internet use to 1200 since our total band is 2000 and I need the rest to ensure other services such as voip to work without hiccups related to huge downloads on the "internet side" of our connection and similar issues. I mean a total squid bandwidth limitation and not a user-based. Fair thanks to everybody.

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• Dell Latitude E4300 TouchPad - Odd Behavior

  - by Cade Roux

  I'm seeing some intermittent behavior on the touchpad. First it wasn't working at all. Then during restart, for a little while it seemed like the buttons attached to the joystick and external mouse were both swapped left/right. Then I went in to the dell touchpad control and disabled the touchpad and re-enabled it and nothing happened. Then a short while after disabling the joystick the touch pad started working. So I restarted to see if it would keep the settings and before login, the touchpad appeared to work, then after login it stopped working for a few minutes while login continued. Then after the login was almost completed it started to work again. It appeared to have retained the settings for the disabled joystick. It seems like perhaps there are conflicting mouse drivers trying to simultaneously or similar. This doesn't seem normal for the touchpad to be disabled for so long after login. What steps should I take to ensure the drivers are right?

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