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• Log highlighted lines to window in irssi

  - by Sebastian P.

  I usually keep an irssi session running on my server at all times. Often times it also takes me quite a while between remembering that I in fact have it running. Therefore I'd like to know if there's an easy way to log all lines that are highlighted to a custom window, such that I later, when I return, can see what people have said that was directed at me. Most useful would of course be if it logged both nickname, time and place (channel, network) of the message. I've been looking around, and haven't managed to get anything working which accomplishes this, so it would be splendid if such a thing existed.

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• Packing for JavaOne

  - by Tori Wieldt

  While you are packing for JavaOne, here are some things to remember to bring:1) A Jacket!While October is considered the summer in San Francisco, the heat only lasts a day or two. The fog can roll in any day, and it can be chilly (and maybe even rain).2) Your Oracle LoginMake sure your have your Oracle.com account log in details with you when you arrive onsite in San Francisco.  This is the username and password you used/created for your JavaOne 2012 registration.  You'll need these to check in and get your badge as well as to gain access to My Account and Schedule Builder onsite at the event. 3) Walking ShoesYou'll want comfortable and practical shoes as this city requires lots of walking and has lots of hills.4) Thumb DrivesWhen sharing cool code, nothing beats sneaker-net. That said, practice safe computing. 5) Consider Downloading a Ride-Sharing Service AppSideCar, Lyft, Uber and RelayRides are taking SF by storm, and are popular alternative to yellow taxis. These are unregulated ride-sharing services, so ride at your own risk. Hipster Tips for SF 1) Don't call it Frisco.2) If you wear shorts, don't complain about how cold it is.3) Bright colored clothes are for tourists. Locals wear black. 4) The most fun ice-cream flavors in town are at Humphry-Slocombe. Check out "secret breakfast."5) The Mission is hip.6) Don't expect there to be a Starbuck's or anything besides a great view at the other side of the Golden Gate bridge.7) SF has seasons, they are just more subtle.

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• Cannot SSH anymore, what went wrong?

  - by lbwtz2

  I use to ssh to a remote server (no rsa-key, just password). Now the server do not accept the connection any more and throw me this error: ssh_exchange_identification: Connection closed by remote host While I can google a little to find a fix I can't figure out what went wrong since I haven't touched anything on the machine since last login. Can you help me find the cause? EDIT: Inspecting the logs I've found these: /var/auth.log /var/log/auth.log:Dec 26 16:40:32 vps sshd[15567]: error: fork: Cannot allocate memory /var/log/auth.log:Dec 26 16:41:05 vps sshd[15567]: error: fork: Cannot allocate memory /var/log/auth.log:Dec 26 16:43:47 vps sshd[15567]: error: fork: Cannot allocate memory /var/log/auth.log:Dec 27 03:20:06 vps sshd[15567]: error: fork: Cannot allocate memory /var/log/auth.log:Dec 27 16:15:02 vps sshd[15567]: error: fork: Cannot allocate memory And in the same span-time I've also found a lot of these: /var/log/auth.log:Dec 26 13:00:01 vps CRON[1716]: PAM unable to dlopen(/lib/security/pam_unix.so): libcrypt.so.1: cannot map zero-fill pages: Cannot allocate memory /var/log/auth.log:Dec 26 13:00:01 vps CRON[1716]: PAM adding faulty module: /lib/security/pam_unix.so What are these?

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• WUBI installation can no longer boot, UUID disk not found

  - by Joel Heenan

  Yesterday my Wubi/Vista installation was working fine. I shut it down at the train station, all good then when I attempted to boot ubuntu at home I got a message saying the UUID for root could not be found. By booting with the Ubuntu live CD I found that the C:\ubuntu\disks folder stat structure was broken, reported as "??? ??? ??" kinda thing. I booted into Windows, scheduled a CHKDSK, ran that on boot which found some errors and rebooted. Still no dice. I am not stressed because it appears my home directory is still there with all my content so I don't mind re-installing the OS (probably will clean it up some). What is the best path from here to repair the WUBI installation? Is there anything else I should do to repair it? I'm looking at whether the drive is dying now to work out why this occured. Possibly I moved the laptop before shutdown had completed.

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• How can I see the metadata of an ISO file?

  - by netvope

  I have been searching for the list of metadata field of an ISO file on Google but couldn't find anything. That made me think that there isn't any metadata in an ISO file, just the files content and their properties. However, today I find in ImgBurn that there is a field called Imp ID, which typically contains the software used to create the ISO file. I'm not sure if it is specific to the UDF and/or CDFS filesystem. What are the other possible metadata fields in an ISO file? What software may I use to see them?

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• VPN Router + LDAP/RADIUS?

  - by MrZ

  Hello all! I need a VPN-capable router, preferably with a web interface, that should be able to authenticate against my LDAP server which is behind the router. The problem stems from the fact that I'm utterly unable to configure that setup for the Linksys RVS4000 that I own. Anything exists that is both cheap and easy to setup? Flashing the firmware is an option, as long as it is a well-documented option. Would it be viable/doable? [Edit] Okay, I've been looking at custom firmwares, any way to know which ones will work with my router before nuking its present one to oblivion? Anyone has experimented with that? My needs are quite simple, I want a DHCP router, an LDAP authenticated VPN, and basic firewall capabilities. I'm using DynDNS from the RVS4000 for now, but I guess I could setup something on the servers instead, that's only a minor problem...

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• How to print a pdf in a new tab? [migrated]

  - by TheDuke777

  I need to print a pdf by opening it in a new window. I've looked at tutorials for days, but nothing is working. I've tried many approaches, but this is the most recent: <!DOCTYPE html> <html> <head> <script type="text/javascript"> function print() { window.getElementById("pdf").focus(); window.getElementById("pdf").print(); } </script> </head> <body onload="print()"> <embed id="pdf" src="http://path/to/file" /> </body> </html> The page loads fine, with the pdf embedded. But it won't print, and I feel like I've been beating my head against a brick wall trying to figure this out. How can I get this to work? I'm willing to try anything at this point.

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• Is rsync --delete safe in case of disk failure

  - by enedene

  I have two data hard drives on my Linux server and I use second as a backup for a first drive. I use rsync for that purpose. An example would be: rsync -r -v --delete /media/disk1/ /media/disk2/ What this does is that it copies every file/directory from /media/disk1/ to /media/disk2/ but also deletes any difference. For example, lets say that files A and B but not file C are on disk1, and on disk2 there is no A and B files, but there is C. The result would be that after the command on disk2 I'd have files A and B, but file C would be deleted, just like on disk1. Now, a rather disastrous scenario had crossed my mind; what if disk1 dies, system continues to work since system files are on my system disk, but when rsync tries to backup my data on disk2 from broken disk1, it deletes all the files from disk2 because it can't read anything on disk1. Is this a possible scenario, or is there a protection from it build in rsync?

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• windows printer spool gets stuck with file at 64kb from linux and mac

  - by Juan Diego

  Hi I have two printers one on a file server with windows 2003, and other with windows XP. The thing is that when i try to print from my machine, my file stays in queue for ever, it says 64kb out of whatever the file i send. I have seen similar problems with some machines that run on Mac OS X. The windows machines apparently have no problems printing. They are not connect through active directory, just the network. In the past I have seen people install non microsoft windows Printer server on windows, i dont remember the name of any of the programs. I have being googling a lot and have not found anything to replace the microsoft print spooler service, maybe i am mistaken. Everyday I have to restart the print spooler service i even created a bat file for it. I am out of ideas here.

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• Recover Bios HP DV9700T windows 7 64

  - by petebob796

  I downloaded the latest DV9700t bios (.59) and ran the update tool in windows 7 64. This seemed to go ok and did the usual system will shutdown in 10 seconds dialog. Updon the reboot nothing happens I get no BIOS screen or anything so I think the bios update went wrong. Which I am annoyed about I have never known a bios update to fail before and lots of people on the internet seem to have had the same problem with the same model. There is a way to recover apparently using crisdisk utility and creating a bootable usb key then holding win+b at power on, unfortunately the utility to make the disk doesn't seem to work in 64 bit versions of windows, the only type I have easy access to. Anyone know a way to create the boot disk in 64?

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• Cause of lost partition replaced by 2 Raw partitions

  - by DwightSampsonite

  Hi, I had a curious problem over the weekend... My 500gb WD hard drive all of a sudden could not be discovered by xp, then when I plugged in again via USB it was being discovered as 2 separate Raw partitions that were asking to be formatted. I have never modified partitions on this drive before. I was scratching my head for about this for 20mins or so when my second 1TB external hard drive did the exact same thing(with the same sized raw partitions as the 500gb). I have since recovered the original partitions and data using Testdisk . I am more curious on the cause.... I suspect this could be a virus, however my machine hadn’t been online in a few days and AVG didn’t detect anything. Has anyone seen this before?

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• Using command line to connect to a wireless network with an http login

  - by Shane

  I'm trying to connect to a wifi network where it hijacks all requests and redirects you to a page where you have to agree to a terms of use before it lets you connect to the actual outside world. This is a pretty common practice, and usually doesn't pose much of a problem. However, I've got a computer running Ubuntu 9.10 server with no windowing system. How can I use the command line to agree to the terms of use? I don't have internet access on the computer to download packages via apt-get or anything like that. Sure, I can think of any number of workarounds, but I suspect there's an easy way to use wget or curl or something. Basically, I need a command line solution for sending an HTTP POST request essentially clicking on a button. For future reference, it'd be helpful to know how to send a POST request with, say, a username and password if I ever find myself in that situation in another hotel or airport.

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• Ubuntu won't log in after update

  - by Dave M G

  I just updated Ubuntu about 15 minutes ago on my desktop which is running 12.04. Within the set of updates, there were some kernel upgrades. It didn't say I needed to reboot after the update was finished, but I thought I would anyway. The computer successfully rebooted up to the login screen. However, after entering my password, the screen goes black for a moment, then it comes back to the login screen. I tried the suggestions in this question, but unfortunately they didn't help. In the accepted answer, the questioner vaguely says it was a "Unity problem". I'm using Gnome-classic with full Compiz effects. I tried uninstalling and reinstalling Compiz, but that didn't fix anything. So... I can't use my desktop computer until this is fixed. I hope there is some help soon. I've uploaded the output of cat /var/log/Xorg.0.log to Pastebin. A temporary solution of changing to gdm instead of lightdm was found with help in the chat room.

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• How can I send raw postscript to a remote printer via CUPS?

  - by Ash

  I have an ancient fax device with a printer interface that only accepts postscript level 1 documents formatted in a specific way. I only have access to this printer over the lpd:// protocol. I have some old documents from our previous system that work fine on our Unix machines, but they are altered somehow by CUPS when I use lp on our Linux system. The PDF files that end up in the print queue are significantly modified versions of the original, and although they still render in ghostscript, they don't do anything on the printer. I'm wondering if there's a way to tell CUPS "don't process this, just send it to the printer without modification", or whether there's a lpd client or procedure I could try?

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• Copy Ubuntu distro with all settings from one computer to a different one

  - by theFisher86

  I'd like to copy my exact setup from my computer at work to my computer at home. I'm trying to figure out how to go about doing that. So far I've figured this much out. On the source computer run dpkg --get-selections > installed-software and backup the installed-software file Backup /etc/apt/sources.list Backup /usr/share/applications/ to save all my custom Quicklists Backup /etc/fstab to save all my network mounts Backup /usr/share/themes/ to save the customization I've done to my themes I'm also going to backup my entire HOME directory. Once I get to the destination computer I'm going to first do just a fresh install of 11.10 Then I'll copy over my HOME directory, /etc/apt/sources.list, /usr/share/appications, /etc/fstab and /usr/share/themes/ Then I'm going to run dpkg --set-selections < installed-software Followed by dselect That should install all of my apps for me. I'm wondering if there's a way/need to backup dconf and gconf settings from the source computer? I guess that's my ultimate question. I'd also like any notes on anything else that might need backed up as well before I undertake this project. I hope this post is legit, I figured other people would be interested in knowing this process and I don't see any other questions that seem to really document this on here. I'd also like to further this project and have each computer routinely backup all the necessary files so that both computer are basically identical at all times. That's stage 2 though...

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• Updated 12.04 and now Xorg is dead from NVidia drivers

  - by Xatolos

  I updated (August 16) Ubuntu 12.04 today and while I admit I didn't look what was being updated, it was large enough to have had an NVidia update in it. Problem is later on when I turned on my laptop again it won't boot into a GUI, just to the terminal (which I don't really know much of how to do anything). Now I have been able to log in and type "startx" to start up the GUI and now its complaining that my NVidia driver (if I remember correctly) is listed as being version 304.(number) and the version installed/found is version 295.(number). I don't know how this happened and now I'm stuck. I have no idea how it happened and don't know how to fix. Does anyone have any ideas? I have only access to wifi internet and no idea how to log on without the GUI so getting a new NVidia package isn't something I would know how to do even... Any and all help would be highly appreciated. edit: If it helps, I'm using a ASUS G Series G53JW-A1 http://www.newegg.com/Product/Product.aspx?Item=N82E16834220861

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• Advice on reconciling discordant data

  - by Justin

  Let me support my question with a quick scenario. We're writing an app for family meal planning. We'll produce daily plans with a target calorie goal and meals to achieve it for our nuclear family. Our calorie goal will be calculated for each person from their attributes (gender, age, weight, activity level). The weight attribute is the simplest example here. When Dad (the fascist nerd who is inflicting this on his family) first uses the application he throws approximate values into it for Daughter. He thinks she is 5'2" (157 cm) and 125 lbs (56kg). The next day Mom sits down to generate the menu and looks back over what the bumbling Dad did, quietly fumes that he can never recall anything about the family, and says the value is really 118 lbs! This is the first introduction of the discord. It seems, in this scenario, Mom is probably more correct that Dad. Though both are only an approximation of the actual value. The next day the dear Daughter decides to use the program and sees her weight listed. With the vanity only a teenager could muster she changes the weight to 110 lbs. Later that day the Mom returns home from a doctor's visit the Daughter needed and decides that it would be a good idea to update her Daughter's weight in the program. Hooray, another value, this time 117 lbs. Now how do you reconcile these data points? Measurement error, confidence in parties, bias, and more all confound the data. In some idealized world we'd have a weight authority of some nature providing the one and only truth. How about in our world though? And the icing on the cake is that this single data point changes over time. How have you guys solved or managed this conflict?

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• Did C++11 address concerns passing std lib objects between dynamic/shared library boundaries? (ie dlls and so)?

  - by Doug T.

  One of my major complaints about C++ is how hard in practice it is to pass std library objects outside of dynamic library (ie dll/so) boundaries. The std library is often header-only. Which is great for doing some awesome optimizations. However, for dll's, they are often built with different compiler settings that may impact the internal structure/code of a std library containers. For example, in MSVC one dll may build with iterator debugging on while another builds with it off. These two dlls may run into issues passing std containers around. If I expose std::string in my interface, I can't guarantee the code the client is using for std::string is an exact match of my library's std::string. This leads to hard to debug problems, headaches, etc. You either rigidly control the compiler settings in your organization to prevent these issues or you use a simpler C interface that won't have these problems. Or specify to your clients the expected compiler settings they should use (which sucks if another library specifies other compiler settings). My question is whether or not C++11 tried to do anything to solve these issues?

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• Does OEM partition stores Windows 7 serial key ?

  - by Mahesha999

  Does OEM partition stores the serial key which is grabbed by the Win 7 setup done from the disk provided with laptop. I realized that when you install clean system from Windows 7 disk you get with laptop, it grabs the serial key or it doesn't ask one. So from where it gets that serial key. Is it the OEM partition or anything else? Or the recovery partition stores the key? What all the things these two partitions do store in them?

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• Problems after installing a plethora of updates

  - by box

  yesterday I decided to install 32-bit Ubuntu on my 64-bit desktop, first of all, is that a problem? After installing, i had around 270 updates to install, according to the update manager. I was having trouble launching a game with WINE, so I thought updating might help. After updating, I restarted my computer, and after a long while it showed me my desktop and the icon's on it, but I didn't get anything else. I didn't have the "taskbar" (not sure what it's called, sue me) on the left side, nor the bar at the top. I also received an error message saying some program had stopped working. I decided to restart my computer again, and that was when it told me that i have to re-configure my drivers, or run in "Low Graphics" mode for one session, amongst other options. Well, I decided to try to revert to the "basic video drivers", which was an option it gave. Restarting the computer gave me the same problem as in the second paragraph. After a few more restarts and a night of restless sleep, here I am trying to start my computer again, only to receive a black screen, and my monitor "going to sleep". I'm sort of stumped here, being new to Ubuntu (desktop, at least) and I really hope this gets fixed without me having to install Ubuntu on yet another partition (I have three other partitions for various things already) tl;dr: Black screen on boot after installing updates.

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• Server unresponsive, messages shown on console but not in log files

  - by raistlin majere

  I'm using Ubuntu Server 10.04.4, and once in a while the server hangs (once a month) and is totally unresponsive. The tty is flooded with messages like these. The problem is that these messages are not in my log files after reboot. How to log these messages so that I can analyze them later? In the current logs I can't see anything that would tell me why this is happening. I would also appreciate if anybody can tell from those messages what's going on. This server is a guest virtual machine. The host server is also Ubuntu server 10.04 with KVM/QEMU.

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• Calculation of Milestones/Task list

  - by sugar

  My project manager assigned me a task to estimate the development time for an iPad application. Lets assume that I gave estimation of 15 working days. He thought that the number of days where too many and client needed the changes to the application urgently (as in most of cases). So, he told me: "I am going to assign two developer including you and as per my understandings and experience it won't take more than seven working days." Clarifications I was given the task of estimating development time for an individual. How could I be sure that 2 developers are going to finish it within 7 days? (I am new to team & I hardly know the others abilities) Questions Why do most of project managers / team leaders have understandings like: If one developer requires N days, Then two developers would require N/2 days, Do they think something like developer = s/w production machines? Should a team member (developer, not team lead or any higher post) estimate other developers work? I didn't deny anything in the meeting and didn't said, but what should be the appropriate answer to convince them that N/2 formula that they follow is not correct?

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• PackageForTheWeb "should not be executed directly"

  - by Sergei Ousynin

  When trying to install package (specifically, chipset drivers for Nexcom PEAK-series computer, but I guess it doesn't really matters) I get "PackageForTheWeb Error" saing "This program is used internally by PackageFromTheWeb. It should not be executed directly." I get this error on both Windows 2000 (where it should be installed) and Windows 7. The original driver CD was lost long time ago, so the package was downloaded from the Nexcom website, found no info about installer prerequisites there. What should I install (or anything else) to install this package? UPD: I found a solution - unpacked the package and executed setup.exe that was inside. But I'm pretty sure it's not an action supposed by vendor, so answers are still welcome.

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• How can I define custom keyboard mappings to resize, move, and manage windows?

  - by fumon

  I just returned to ubuntu (13.04) after a year using OS X exclusively. I love the improvements that have come to ubuntu and unity, and I'm glad to be back. There's just one thing, though... Slate is a simple OS X tool that allows users to quickly create powerful keyboard macros and really take advantage of their screen space. I have to say I was spoiled by it. Even on a tiny laptop, my workflow was never interrupted by changing workspaces or leaving the keyboard to adjust a window, because perfect adjustment was a keystroke or two away. For example: bind h:ctrl;alt;cmd resize -10% +0 # this increases the window's left width by 10% bind h:shift;alt nudge -10% +0 # this moves the window left by 10% You make a big config file, and like vim, tmux, and everything else, it just becomes muscle memory. I can't seem to find a way to achieve anything close to this in linux or ubuntu. I've tried to make do with compiz window settings and the built-in stuff Ubuntu offers, but it's not even in the same realm. Although to be fair, this level of tuning isn't something most people care about. Thanks, guys. :) Any feedback would be appreciated.

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• Password not working for sudo ("Authentication failure")

  - by Souta

  Before I mention anything further, DO NOT give me a response saying that terminal won't show password input. I'm AWARE of that. I'm typing my user password in (not a capslock issue), and for some reason it still says 'Authentication Failure'. Is there some other password (one I'm not aware of) I'm supposed to be using other than my user password? I've had this ubuntu before, on another hard drive and I didn't have this problem. (And it was the same ubuntu, ubuntu 12.04 LTS) ai@AiNekoYokai:~$ groups ai adm cdrom sudo dip plugdev lpadmin sambashare ai@AiNekoYokai:~$ lsb_release -rd Description: Ubuntu 12.04 LTS Release: 12.04 ai@AiNekoYokai:~$ pkexec cat /etc/sudoers # # This file MUST be edited with the 'visudo' command as root. # # Please consider adding local content in /etc/sudoers.d/ instead of # directly modifying this file. # # See the man page for details on how to write a sudoers file. # Defaults env_reset Defaults secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" # Host alias specification # User alias specification # Cmnd alias specification # User privilege specification root ALL=(ALL:ALL) ALL # Members of the admin group may gain root privileges %admin ALL=(ALL) ALL # Allow members of group sudo to execute any command %sudo ALL=(ALL:ALL) ALL # See sudoers(5) for more information on "#include" directives: #includedir /etc/sudoers.d I can log in with my password, but it's not accepted as valid for authentication <-- That is pretty much my issue. (Although, I haven't gone into recovery mode.) I've ran: ai@AiNekoYokai:~$ ls /etc/sudoers.d README And also reinstalled sudo with: pkexec apt-get update pkexec apt-get --purge --reinstall install sudo pkexec usermod -a -G admin $USER <- Says admin does not exist su $USER <- worked for me, however, my password still does not do much (in sense of not working for other things) I changed my password with pkexec passwd $USER. I was able to change it no problem. gksudo xclock was something I was able to get into, no problem. (Clock showed) ai@AiNekoYokai:~$ gksudo xclock

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