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• Cannot ssh into server

  - by revolver

  I am trying to SSH into a linux machine running ubuntu, but the interactive shell stuck somewhere and I can't key in anything. I am on Mac OS X Lion. This only happens when I am trying to access via an external IP. Local LAN SSH is working perfectly. macbook:~ user$ ssh -v -v user@serverip // i skipped the rest of the log, but I can paste it here again if needed. Authenticated to serverip debug1: channel 0: new [client-session] debug2: channel 0: send open debug1: Requesting [email protected] debug1: Entering interactive session. debug2: callback start debug2: client_session2_setup: id 0 debug2: channel 0: request pty-req confirm 1 debug1: Sending environment. debug1: Sending env LC_CTYPE = UTF-8 debug2: channel 0: request env confirm 0 debug2: channel 0: request shell confirm 1 debug2: fd 3 setting TCP_NODELAY debug2: callback done debug2: channel 0: open confirm rwindow 0 rmax 32768 My terminal shell just hang after this, and I can't key in anything. I checked var/log/auth on the server and saw that the a session is being created and I had already logged in, but I don't see any responses on my client machine. I googled around and a lot of the solution had to do with the Broadcom wireless driver, but I am not even using one, so I am pretty clueless here. To give you more information, the linux machine is also running a web server, and I have no problem accessing the web server. Thanks. Any help is appreciated.

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• Unix sort 10x slower with keys specified

  - by KenFar

  My data: It's a 71 MB file with 1.5 million rows. It has 6 fields, four of which are strings of avg. 15 characters, two are integers. Three of the fields are sometimes empty. All six fields combine to form a unique key - and that's what I need to sort on. Sort statement: sort -t ',' -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 -k6,6 -o a_out.csv a_in.csv The problem: If I sort without keys, it takes 30 seconds. If I sort with keys, it takes 660 seconds. I need to sort with keys to keep this generic and useful for other files that have non-key fields as well. The 30 second timing is fine, but the 660 is a killer. I could theoretically move the temp directory to SSD, and/or split the file into 4 parts, sort them separately (in parallel) then merge the results, etc. But I'm hoping for something simpler since these results are so bad as-is. Any suggestions?

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• How do you disable the magnifier in Windows Vista?

  - by PhantomDrummer

  Every so often while I'm working, if I accidentally jolt the mouse, the magnifier starts. I'm fairly sure the cause is that some comination of mouse keys is supposed to start the magnifier, and I occasionally hit the right keys accidentally. However, I've never been able to reproduce the behaviour deliberately so I don't know which combination. This is very annoying since switching the magnifier off is non-trivial (control panel, or run dialog, which are hard to use when the magnifier keeps - ummm - windowing and magnifying the bit of screen you're about to click on :-) ). So I'm wondering if there's any way to disable the magnifier completely, so that it doesn't start when you do whatever it is you'd normally do to the mouse to start it? Anyone know?

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• Is there a remote desktop or vnc app for the IPad that properly handles Bluetooth keyboard shortcuts?

  - by Steve Bison

  I've tried 4 or 5 remote desktop apps, the most notable being Jump Desktop and Splashtop Streamer. Most of these remote desktop apps have some sort of on-screen keyboard for typing with the IPad, including special keys like shift, control, alt. The special keys act like "sticky keys" meaning they stay depressed until another key is pressed, to make it easier to do key combinations. Even non-standard keyboard combinations like shift+enter work, in this sticky sense. When using a Bluetooth keyboard with the remote desktop apps, both Jump and Splashtop Streamer recognize the shift + letter combination for doing capital letters. However, generically pressing shift, cntrl, or alt does not depress the sticky on screen shift buttons or do anything at all. Only a few combinations are recognized (again like shift+letter, cntrl+C). Most combinations do not work (shift+enter, alt+tab). Even having the keyboard shortcuts work like sticky keys (press shift then enter, not both at once) would be much better than the limited functionality they have now. Is there an app, jailbreak app, or workaround that lets me use bluetooth keyboard properly with remote desktop on the ipad?

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• linux automatic change permissions in resolv.file

  - by rikr

  In various linux servers I see how the permissions of the /etc/resolv.conf file change automatically. In state normal: -r--r--r-- 1 root root 103 Jul 4 11:50 resolv.conf In changed state: -r--r----- 1 root root 103 Jul 4 11:50 resolv.conf I installed auditd for monitoring it, and these are the two entries between the change: type=PATH msg=audit(07/04/2012 12:20:02.719:303) : item=0 name=/etc/resolv.conf inode=137102 dev=fe:00 mode=file,644 ouid=root ogid=root rdev=00:00 type=CWD msg=audit(07/04/2012 12:20:02.719:303) : cwd=/ type=SYSCALL msg=audit(07/04/2012 12:20:02.719:303) : arch=x86_64 syscall=open success=yes exit=3 a0=7feeb1405dec a1=0 a2=1b6 a3=0 items=1 ppid=1585 pid=3445 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=4294967295 comm=hostid exe=/usr/bin/hostid key=(null) type=PATH msg=audit(07/04/2012 12:50:03.727:304) : item=0 name=/etc/resolv.conf inode=137102 dev=fe:00 mode=file,440 ouid=root ogid=root rdev=00:00 type=CWD msg=audit(07/04/2012 12:50:03.727:304) : cwd=/ type=SYSCALL msg=audit(07/04/2012 12:50:03.727:304) : arch=x86_64 syscall=open success=yes exit=3 a0=7f2bcf7abdec a1=0 a2=1b6 a3=0 items=1 ppid=1585 pid=3610 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=4294967295 comm=hostid exe=/usr/bin/hostid key=(null) any ideas?

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• Create an RSS feed for any webpage, monitor changes and send results by email?

  - by David

  Do you know a Windows 7 software (not an online service) than can create an RSS feed for any webpage ? Here is what I am looking for : I manually select what is a title, what is a link and if needed what is the content that I would like to keep (article content + their related images if they exist). The software create a RSS feed from that. Then it monitors the feed every x hours (or x days at a specified time). If updates are found then send the results to my email address. (It is a little like a combination of the Firefox addon: Autopager (WYSIWYG selection which use xpath) and WebSite-Watcher (RSS software monitoring).

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• Strange Photoshop Problem: Can not select, zoom, paint, option button 'locked'

  - by nikcub

  I have a very strange problem with Photoshop. I can not use any of the tools, since the cursor appears 'locked'. If I select v on my keyboard, it goes to the zoom tool, but the cursor does not change. If I select the paintbrush tool, I can only paint if I hold down the option key. This is what the cursor look like (I had to paint it since I couldn't capture it). It is a rectangle with two lines through it. I am running Photoshop CS4 on a Macbook Pro with Mac OS X 10.6.6. Using both the trackpad and an external Logitech MX5000 mouse I see the same issue. This started when I fired up Photoshop today for the first time in a while. I can't remember changing any options or doing anything that could cause this. Is it possible that the option key is somehow locked in place, or there is some equivalent of num lock on? Very strange problem, I would appreciate any help anybody can offer. Edit: To add, the icon remains the same within all the menu options - it never goes back to being just a normal mouse cursor. Also, right click works fine, and if I hold down option, the cursor goes back to normal and I can paint with it. I can't use Marquee, Lasso, Crop, Type etc. even with option held down. When I go into Bridge, it is the same icon.

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• Move markers of line chart/ Format legend

  - by user68753

  Hi all, I have a combination chart with a bar chart and 2 line graphs on secondary axis. have to exactly match the formatting in the screenshot attached ( I do not have the actual excel file. just have a screenshot). If you have a look - you can see the markers on line graphs do not align. The red line markers are skewed slightly to the left. Also, in the legend at the bottom - secondary axis legends are separated out to the bottom. I don't know how to do that either. Any help is greatly appreciated

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• ssh Password-less login to multiple machines when you already have one

  - by tandu

  I'm a little bit confused about setting up a password-less login for multiple machines to begin with, but I think I could do it from scratch. The problem is I already have it set up for one machine and I don't want that to be blown away when I try to set it up for the other machine. Let's clarify: Machine A: the machine I'm connecting from Machine B: the machine I'm connecting to. Password required Machine C: the machine I'm connecting to. Password-less ssh I have read some tutorials on setting up password-less ssh to a certain site, but they usually start with "move id_rsa out of the way so it doesn't get blown away," but then at the end of the tutorial it's not moved back. If I had no help at all, here is what I would do: Log into B ssh-keygen -t rsa -f ~/id_rsa.other scp id_rsa.other.pub A:~/.ssh echo "Host A \n Identity File ~/.ssh/id_rsa.other" > ~/.ssh/config (Note that I realize these commands may not be exactly correct, but this is just the idea). What I'm not quite clear on is if I need to update the config for A, B, or both. I'm fairly certain to do a password-less login from A to B, it is A that needs the public key .. but I also suppose I need B to use the correct id_rsa file for that public key. Finally, I don't want the password-less login for C to be affected at all .. it's using id_rsa. Am I going wrong anywhere?

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• Computer hanged in the middle of bios flashing process

  - by Stalker

  I have a laptop: Toshiba Satellite c660-17j, today I decided to update BIOS. I've downloaded bios updater from manufacturer's web site, and in the middle of flashing process computer hanged. I was waiting more than 30 minutes, but nothing was changed on the screen, i've tryed to PRESS MORE BUTTONS, but there were no reactions, so i've turned it off by removing battery (all other methods failed, even pressing power button for ~10 secs). After that computer can't start. I understand, that there's MESS in BIOS chip, and it's possible to re-flash it with hardware programmer, but I don't have it. I remember, that on some PCs (even on my eeepc) there was possibility to re-flash bios by inserting usb flash-disk (with .dat file on it, which contained BIOS), and power on PC, while holding some keys combination, then PC was switching to BIOS programming mode and re-flashed BIOS, after that it was possible to boot up normaly. Is there a way to recover computer without hardware programming BIOS chip? p.s. sorry for my english.

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• Podcast online sync service

  - by Hannes de Jager

  I download and listen to podcasts on 2 different computers. I would like so somehow sync the metadata such that, when I subscribe to a feed it gets subscribed on my other computer also. When I've downloaded a podcast it gets marked as downloaded on the other machine also. Is there a software + webservice combination that will allow me to do this. That will save its doings to the cloud and update it also? My one machine is Windows and the other one Linux.

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• Linux PHP web server horribly slow when accessed from any windows browser

  - by Ed Harcourt

  I have a Linux server (Ubuntu 10.04) running apache2 and PHP. Everything runs fine when accessing a page from any browser from another Linux machine or Mac. But when I try to access a page from any combination of Windows machine and browser I get about a 30 second delay before the page comes back. Accessing a plain old HTML file from the Windows browser runs lickity split. So it seems to be just PHP. MySQL is installed but a simple test page that uses no MySQL is still slow. I don't think it is DNS because if I hard code the IP address in the URL nothing changes. There doesn't seem to be anything in the log files that I can tell. What could be causing this behavior on Windows clients?

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• How to automount a Truecrypt volume before login in Windows 7?

  - by nonoitall

  I have an external hard drive containing all my documents, and it is encrypted with a password via Truecrypt. I'd like my desktop computer at home to automatically mount the volume prior to my logging in (so that it can be used as my user folder) without asking me for a password. (Yes, the password can be saved in plain text on my desktop's hard drive - that's okay.) For the life of me, I can't figure out a way to do this that actually works though. Tried using the Task Scheduler to schedule a mount when the computer starts up, and it works, but the volume is only accessible by my user account after I log in. (Haven't tried every combination of users/options for the scheduled task, so maybe there's something else there I need to try.) Also tried adding a startup script for my user account that runs on login, which evidently is too late to set up the user's profile folder. Anybody ever successfully achieve this or something like it?

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• Reverse web proxy with time constraints

  - by user2893458

  I have a web application which produces several unique URLs of the type http://service.company.com/service.html?type=aaaa&key=jfiZm6u6cW where the last part is a randomly generated key. Each such URL provides access to an instance of the service provided. I am looking for a way to restrict access to those URLs based on time constraints, as an example URL#1 should be available between 8:00AM and 10:00AM on May 30, URL#2 should be available between 10:30AM and 12:00PM on May 31, and so on. I already have a resource scheduling application based on Drupal and would like to find a way to include those URLs as scheduled resources. The web application is deployed on Apache Tomcat, so I don't have the knowledge or the resources to alter it, therefore I thought that I could put some sort of reverse proxy in front of the web app that could implement the time constraint feature. In my thoughts the reverse proxy would allow or disallow access to each URL based on the rules that my scheduling application would provide. There may be other ways to deliver such a solution, but I can't think of anything better, so the question is: is there a reverse web proxy architecture that could allow access to the destination URLs based on time and date rules? Any other ideas are more than welcome.

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• PHP errors not being displayed

  - by Mike

  I'm using PHP with Apache on Ubuntu 12.10. Errors are not being displayed to the browser for some reason and I can't figure it out. I have the following in my php.ini file: error_reporting = E_ALL & ~E_DEPRECATED display_errors = On display_startup_errors = On log_errors = On I am also positive that I have edited the correct ini file by verifying it with php_ini_loaded_file(). I can also verify that the values are correctly set by doing the following in my script: echo ini_get("display_errors"); // Outputs 1 echo ini_get("display_startup_errors"); // Outputs 1 echo ini_get("log_errors"); // Outputs 1 echo ini_get("error_reporting"); // Outputs -1 I have tried what seems like every possible combination of these settings (and restarting Apache after each change) and it is just not outputting errors. I am also not using ini_set anywhere in the script. It is being set only from the ini file. Any ideas why errors aren't being displayed?

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• Traspose matrix-style table to 3 columns in Excel

  - by polarbear2k

  I have a matrix-style table in excel where B1:Z1 are column headings and A2:A99 are row headings. I would like to convert this table to a 3 column table (column heading, row heading, cell value). It does not matter in what order the new table is. A B C D A B C A B C 1 H1 H2 H3 1 H1 R1 V1 1 H1 R1 V1 2 R1 V1 V2 V3 => 2 H1 R2 V4 or 2 H2 R1 V2 3 R2 V4 V5 V6 3 H1 R3 V7 3 H3 R1 V3 4 R3 V7 V8 V9 4 H2 R1 V2 4 H1 R2 V4 5 H2 R2 V5 5 H2 R2 V5 6 H2 R3 V8 6 H3 R2 V6 7 H3 R1 V3 7 H1 R3 V7 8 H3 R2 V6 8 H2 R3 V8 9 H3 R3 V9 9 H3 R3 V8 I've been playing around with the OFFSET function to create the whole table but I feel like a combination of TRANSPOSE and V/HLOOKUP is required. Thanks

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• Problems with the backup

  - by marcodv

  I did a script which run around 4 o'clock in the morning, for backup all the mysql databases and the config file for 250 linux vm. The problem is that it tooks ages for complete and more than 50% of these vm, need more than 8 hours for complete. More or less all the vm had the same configuration,I mean Same amount of ram same amount of disk space same number of cpu Debian 6.0.5 I am saving these backup on amazon s3, because is the cheapest solutions that I've found. Now my questions is: Has anyone some solutions or suggestions about that? On one blog I've read that probably the ionice and nice combination could be good work around about that. any thought?

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• Laptop keyboard stopped functioning properly

  - by galdikas

  Basically today out of blue my laptop keyboard started acting up. For example I press "s" but I see "`s" on the screen. Some keys don't work at all. And the weird thing is it keeps changing, in a sense that for example in the morning I press "s" and I get "`s", then few hours later "s" works correctly.. but pressing some other key output multiple characters. Then sometimes it spontaneously will start outputting some character onto any input field that is available as soon as I click on it to gain focus. And it will just keep on going and going, as if I keep a button pressed (which I don't). At first I thought this was a virus, but I have a dual boot of Windows 7 and Ubuntu, and I get same problem on both. I even tried to boo live CD, and still had same problem. Anyone had this kind of problem? It's a Toshiba Satellite c660-258. It is around year old, but quite well kept. Never spilled anything on it, or dropped it. And my wireless USB keyboard works perfectly on it (appart from the spontaneous character inputs, which I can stop by hitting NUM LOCK key)

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• What does it mean for a computer to be an "IBM Compatible PC"?

  - by Jon

  A couple questions about this: 1) Is this term even relevant any more? 2) Does this mean anything from a developer's stand point? It is not exactly clear to me if this is a BIOS, architecture, bus or a combination. A piece of software I'm working on expects to see a "Description" of the system and currently windows machines report "AT/AT Compatible". Having been tasked to port this to Mac, I really don't know what a proper "Description" would be - this will most likely be omitted but I was wondering if anyone could provide some insight on the modern usage of this term.

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• How many nginx/fastcgi processes do you use?

  - by qliq

  I have a drupal-based website on a VPS with 1GB RAM and 1Ghz processor share. The webserver is nginx along with php-fastcgi. Currently I am using 10 nginx and 13 php-fastcgi processes. The server load is high most of the times while half of the RAM is unused. The CPU usage rarely reaches 80%. I have tried some other combinations of nginx/php-fastcgi but am not sure what is the optimal combination because I am quite ignorant about what's going on below the surface. So I appreciate if you could share your experience or give me some clues.

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• Identifying test machines in analytics logs

  - by RTigger

  We're just beginning to add analytics to our SaaS application, to begin (among other things) billing clients based on usage. The problem we're running into is there's a few circumstances where our support team will simulate a log in into production to try to reproduce reported issues with a client's configuration. When they log in, an entry will be made into our analytics logs that their specific account has logged in, which we use to calculate billing. A few ideas we had to solve this: 1) We log IP addresses as well as machine keys for each PC that logs in - we could filter out known IP addresses and/or machine keys belonging to support. The drawback is we have to maintain a list of keys / addresses manually. 2) If support (or anyone else internal) runs our application in debug mode (as opposed to release), it will not report analytics. This is fine, as long as support / anyone else remembers to switch to debug mode. 3) Include some sort of reg key / similar setting required to be set when configuring a production system in order to send analytics. Again, fine, as long as our infrastructure team remembers to set the reg key or setting. All of these approaches require some sort of human involvement, which we all know can be iffy at best. Has anyone run into a similar situation? Is there an automated approach to this problem? (PS Of course, we shouldn't be testing in production, but there are a few one-off instances with customer set up that we can't reproduce without logging in as them in production. This is the only time we do so, and this is the case I'm talking about in this question.)

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• Windows 8.1 keeps prompting for Network Share Credentials after every log on or restart

  - by Peret del Trunfa

  I have a Network drive Shared in a Workgroup with 3 clients. Two clients with Windows 7 have persistent connections to the Share. No issues with those two. My windows 8.1 client keeps prompting for credentials at every restart / log on. I spent hours looking around for a solution: I have stored cred in cred manager, and tried every possible combination (WORKGROUP\user , COMPUTERNAME\user, user, .. and so on). I have changed NT and NTLM negotiation in policy manager. I've compared the settings under GPO network security with a working win 7 computer, everything is pretty much the same. -I've captured Wireshark to see SMB negotiation process, honestly I see the messages flowing around, and the share sending AUTH DENIED.. which means is how the 8.1 client formats the request.... that makes the share reject it.. Now I still don't really know why. Any ideas would be appreciated.

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• Firefox addon to display all shortucts

  - by p1

  Is there a firefox addon that would display all shortcuts on a web page and also browser shortcuts. for eg: c is the keyboard shortcut for gmail compose. So either on a particular key combination or by hovering over the compose button it should show a "c" to indicate there is a shortcut for this operation. I guess If we keep on seeing the shortcuts popping each time when we do an action then we can start using and remembering more and more of it. Thanks. P.S: If this is not the forum to ask this question please suggest appropriately in comments.

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• Windows XP doesn't like small subnets?

  - by erniedwork

  This totally sounds like a bug to me, because my subnet mask and IP address should be valid by all accounts. My ISP has assigned me a fixed IP address of 65.110.7.20, with a subnet mask of 255.255.255.252. Which sounds about right, because we're trying to set up a router with a /31 network - just 4 ip addresses. But when I try to set this IP and netmask up in Windows XP, I get the following error: "The combination of IP address and subnet mask are invalid. All of the bits in the host address portion of the IP address are set to 0." But they're not all set to 0. That would be a subnet mask of 255.255.255.255. Even then, that too is a valid subnet mask, consisting of a network of 1 IP address. Is there a way around this? A registry hack maybe?

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• Windows 7 -Can't get access to shared folder from one computer to another.

  - by Carbonara

  I have 2 windows 7 computers and i'm trying to share a folder (that I want password protection on) outside of the homegroup. Both computers are part of the same workgroup and I have the same user account/password combination on both computers plus I have password protected sharing turned on in the network and sharing centre along with file and printer sharing turned on. On computer 1 I have right clicked and selected that I want the folder shared. When I navigate via the network on computer 2 to computer 1 the shared folder shows up on computer 2 but double clicking on it to open it gives me an alert saying I don't have permission to access it, no option to type in the user name and password (according to the help files I shouldn't even need to type the password in if both computers have the same username/password anyway but would need it if I'm logged in as a different user). It's just a blanket denial of access.

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