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  • How do I set up a bridge on Ubuntu GNOME 14.04

    - by NJRandy
    I found a guide for setting up a bridge in Fedora and was trying this: $ nmcli connection delete p33p1 $ nmcli connection add con-name br0 type bridge ifname br0 autoconnect yes $ nmcli connection add con-name p33p1 type bridge-slave ifname p33p1 master br0 autoconnect yes I found that $ nmcli con delete uuid [uuid here] accomplished the first step. nmcli connection does not have an 'add' action in this distribution. Please help me do the 2nd and 3rd steps. Context: I am trying to set up a virtual machine. I believe this is a necessary step for the VM to access my network and the internet. Please feel free to correct me if I am wrong! BTW, I am a linux newbie, tech oldie. Thank you.

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  • How to control fan speed on Compaq Presario under Ubuntu?

    - by Josh
    I have a Compaq Presario R4000 running Ubuntu Linux 9.10 karmic. The system runs very hot and one of the fans is wither never running or always running at the slowest speed. For a while I thought the fan was dead but I just updated the BIOS (Phoenix BIOS) and during the update, that fan suddenly kicked in at full speed! How can I get that fan to spin up during normal usage? I have tried sensores-detect but all it found was k8temp, no fans... (SpeedFan under windows found no fans either)

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  • Colored PS1 string

    - by Will Vousden
    Clarification: I want __foo to be executed each time the PS1 string is presented in the terminal, not when the PS1 string is constructed (hence its being in quotes). __foo contains logic that examines the current directory, so its execution must be deferred. I'm trying to use different colours in my Bash PS1 string from within a Bash function: LIGHTRED="\033[1;31m" LIGHTGREEN="\033[1;32m" RESET="\033[m" __foo () { # Do some stuff and genereate a string to echo in different colours: echo -n '\['$1'\]firstcolour \['$2'\]secondcolour' } PS1='$(__foo '$LIGHTRED' '$LIGHTGREEN')\['$RESET'\] \$' Essentially I want __foo to generate part of the PS1 in a bunch of different colours. My attempt doesn't seem to work, though; it produces the following output: -bash: 31m: command not found -bash: 32m: command not found \[]firstcolour \[\]secondcolour $ What gives, and how can I fix it?

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  • what does it mean for MalwareBytes to find malicious registry keys but nothing else?

    - by EndangeringSpecies
    I have a machine that is obviously infected, and when I ran MalwareBytes it told me that it found some "malicious" registry keys (surprisingly enough these contained file path to currently non-existent javascript files). But, that's it. Full scan did not uncover any malicious files, or malicious hidden processes in memory. Like, maybe the (hidden?) process that for whatever reason periodically injects keystrokes (hotkeys?) into whatever currently open window. Then on another, not obviously infected, machine it found a "malware.trace" registry key but again no files or processes etc. How does this jive with people's experience with MalwareBytes? Does it usually find registry key symptoms of an infection but nothing else? Or is it a common thing to have no infection but some malicious registry keys in place anyway?

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  • Access permission /opt/ in Ubuntu

    - by user1201239
    I want to access my /opt/ folder I have found following commands for giving access permission. But not sure what is the purpose of this commands which one is the better to use it to maintain security and access permission both. Please explain me the purpose or what this different numbers means in security permission ? here are they , sudo chmod 755 -R /opt/ sudo chmod 755 /opt/ sudo chmod 775 /opt/ sudo chmod 777 /opt/ I dint know these commands so what I use to do previously was "gksudo nautilius" then rightclick- change the owner from root to current usergroup But now as I have found this commands I would like to know Which one should i use ? and what they do ?

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  • Startup error BackgroundContainer.dll on windows 8.1

    - by Manolis Karagiannis
    I have the same problem with this topic! How to resolve BackgroundContainer.dll error on startup? The thing is i did everything that says in answer but i)I found nothing when i started regedit.exe and searched (F3 or CTRL+F) for BackgroundContainer.dll ii)I made a full scan with AntiVirus Scanner like Microsoft Security Essentials/ Defender and also i scaned my PC with Malwarebytes' Anti-Malware,but i found nothing. So this pop up message on start up keep appeared! any idea? Thank you!

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  • Help getting iPython to run from the OSX terminal.

    - by Azfar
    Hi there, Got a heads up from stackoverflow.com to ask the question here. I'm going through the matplotlib documentation and prepared to use the iPython interactive Python shell with ipython -pylab. However I get this: MBP:~ Me$ ipython -pylab -bash: ipython: command not found Did I fail to install iPython? I used easy_install as advised. Any ideas? Update Thought I'd just say that I found the iPython "executable" in /opt/local/Library/Frameworks/Python.framework/Versions/2.6/bin after doing a Spotlight search. Still a little confused as to what to do.

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  • Adaptec 2020SA RAID controller Set up in RAID5, one drive went down, can I still get data?

    - by SJaguar13
    I have 6 1tb drives in a RAID5. 1 drive went down. On the RAID was 2 virtual machines that I really need back up and running. The spare drive I have to put in the server is a 1.5tb drive, which exceeds the physical per drive limit of the 2020SA. The drive is found in the disk utility, but it is not found in the array management section. I cannot add the drive to the array to have it rebuild. I have a replacement drive along with some spares on their way from Newegg, but I am still looking at a few days of downtime. Is it possible to use the 5 working drives to get the VMs copied off and on to another server or do I just have to wait for the drives to get here?

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  • Delta files not deleted

    - by DanieleF
    Dear al, I found out that my VM is running with a snapshot which is not visible in the snapshot manager. I found out also that the machine is running on a delta file (probably an old snaphot) I see there are procedures to consolidate snapshots but what i want to understand now is : Having a VMDK-flat disk of 50gb =which is actually the vdisk created at the beginning Now i have a DELTA file of 38 gb...and this file it is growing on daily basis. My question is : why the delta file is growing ? is that normal ? Please let me know what is behind.

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  • Lost contact with my NAS after changing its IP

    - by Beles
    I did some brain-dead reconfiguring of my D-Link DNS-323 NAS some days ago. I have a home network where each computer gets a dynamically allocated IP address starting at 192.168.1.100. The irritating point (for me at least) was that the NAS changed IP if the power went down or I turned off the router. I then had to remap a drive-letter to point to the new IP address of the NAS. To remedy that I configured the NAS to have a static IP, 192.168.0.10. I had no good reason to choose that IP, other than I found it in a user manual for the NAS. After I changed the IP and rebooted the NAS it disappeared from the network and was never to be found again. Now I have a black brick standing in my home, looking good, but "dead". Could anyone point me in a direction which helps me solve this problem? I have about 100gb worth of pic of my children on this brick so I really want it back :-) Sincerely,

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  • Create intentional border with xrandr

    - by benizi
    Is there a way to tell xrandr "this space intentionally left blank"? I have a laptop that drives its internal display at 1920x1080, but the external monitor I'm using, due to its different aspect ratio, doesn't have that mode. It runs at 1920x1200. So, the basic setup: xrandr \ --output LVDS-1 --mode 1920x1080 \ --output DP-1 --mode 1920x1200 --same-as LVDS-1 [not to scale:] +-----------------------------------+ ¦ ¦ ¦ ¦ (laptop) ¦ (external) ¦ ¦ (LVDS-1) ¦ (DP-1) ¦ ¦ ¦ ¦ ¦ ¦ ¦ +-----------------¦ ¦ (blank...) ¦ ¦ +-----------------+ How can I specify that the 1920x120-sized region below LVDS-1 should be displayed as a black bar that can't be accessed by mouse on DP-1? I tried just coping with --panning 1920x1200+0+0/1920x1080+0+0/0/0/0/120, but I found the screen movement to be very annoying. Update: I found a workaround. (Update 2: changed it to an answer, per suggestion -- workaround doesn't answer the underlying question of leaving space blank.)

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  • MySQL query works in Workbench but gives error code 63 from PHP

    - by smund3
    I am making a poll system with PHP/MySQL and have made created a MySQL user for the system to use. However, whenever I try to run a query from PHP as that user, I get error code 63, which after some Googleing I found out means: OS error code 63: Out of streams resources If I make the PHP script use an almighty user instead, everything works fine, so it looks like it has something to do with permissions. I am using a non-persistent connection. I have Googled a lot but I haven't found anything even slightly relevant to this issue. What could cause this error? EDIT: Now it actually started giving me a different error: OS error code 65: Package not installed ...all I did was revert the script to using the poll user instead of the almighty one.

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  • How to get the basic mail command in ubuntu 10 to work

    - by Maureen Adamson
    I am a college lecturer to whom the task of supporting the students' Linux Server has fallen. My students just need to use the mail command to communicate with me and each other. I thought mail would be there by default but it wasn't. I have tried all the advice I found on the Internet and tried to install mailutils, sendmail, mailx, exim4 and postfix. There were more but I can't remember them all now. After installing (if it works - some of them don't), when I try to send a message they all give me: /usr/sbin/sendmail: file or directory not found. I don't need anything fancy - we don't need to access remote email, just locally on our server. Incidentally the same problems are occurring on the physical server and my test virtual machine, installed at different times but both Ubuntu 10. Can anyone help me?

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  • How to prevent Spell checking code in MS Office?

    - by Aaron
    We use MS Office. Outlook for emails, Word for some documentation and I use OneNote a lot for my own note taking. What bugs me is when I drop some code or use key words or even camel case into these apps the spell checking picks them up and I have red squiggles everywhere. Ignore is pretty much useless, so either I have to turn off Spell Check altogether start adding these to the custom dictionary. What would be good is if I can use the Set Language function to mark a whole block of text to just not be spell checked. Has anyone found a nice solution to this or do you know of a blank dictionary is best to use? I found using "Mohawk" kind of does that... might just use that for now. Maybe create a macro to switch between them.

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  • A complete tool for auditing and archiving emails would be helpful for the community?

    - by Renato Todorov
    Please, don't treat this like a discussion question, I'm looking for direct answers: Yes / No, because... I work on a financial company and I'm needing a tool for email archiving and auditing. The compliance sector is asking for it and I have to provide it. I've searched and found two solutions: MailStore (commercial, Windows only) and Enkive (open source, very poor UI and lack of features). I'm using Postfix as MTA and Courier for IMAP/POP access. I'm almost deciding to write it myself, I have the knowledge needed, but I'm wondering right now if it's worth to put (a lot) more hours to make it open source and user friendly. So my question is, have you ever had the same need? Would this be a helpful solution? Is there any other good tool that I haven't found? Thank you!

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  • Identifying the version of ATI Catalyst drivers

    - by Snark
    I have bought a new video card based on the ATI Radeon HD 5670 chipset. I couldn't make it work with the latest ATI Catalyst drivers found on their website, only the drivers found on the CD delivered with the card worked. How can I know the version of Catalyst that is installed on my PC (running Windows 7 64-bits)? The ATI Catalyst Control Center returns the following information: Driver Packaging Version 8.673-091110a-092263C Provider ATI Technologies Inc. 2D Driver Version 8.01.01.973 2D Driver File Path /REGISTRY/MACHINE/SYSTEM/ControlSet001/Control/CLASS/{4D36E968-E325-11CE-BFC1-08002BE10318}/0000 Direct3D Version 8.14.10.0708 OpenGL Version 6.14.10.9120 Catalyst™ Control Center Version 2009.1110.2225.40230 I do not recognize anything pointing to a "marketing version". The website says the current version of Catalyst is 10.2.

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  • Resize ntfs system partitions with GParted?

    - by ane
    Trying to resize 2 ntfs system and boot partitions (windows 2003 server) using GParted. Goal: Resize D: (/dev/sda1) to ~850G - this is the boot drive with D:\ntldr, boot.ini, etc. Resize C: (/dev/sda5) to 100G - this is the system drive with C:\windows Tried resizing /dev/sda5 first and got the chkdsk error shown in screenshot #2. (You must run chkdsk /f). Have already run chkdsk /f on C: multiple times with no bad sectors or errors found. Have also run multiple chkdsk /f's on the underlying hard disk multiple times and rebooted way more than a couple times with the same error. How do you force gparted to ignore this error and resize? I found there is --force option to ntfsresize but don't know how to get the GParted ISO live CD to use it. How do you move the unallocated space so an extra ~750G is to the right of /dev/sda1 (D:), and an extra 10G to the right of /dev/sda5 (C:)

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  • Retrieve malicious IP addresses from Apache logs and block them with iptables

    - by Gabriel Talavera
    Im trying to keep away some attackers that try to exploit XSS vulnerabilities from my website, I have found that most of the malicious attempts start with a classic "alert(document.cookie);\" test. The site is not vulnerable to XSS but I want to block the offending IP addresses before they found a real vulnerability, also, to keep the logs clean. My first thought is to have a script constantly checking in the Apache logs all IP addresses that start with that probe and send those addresses to an iptables drop rule. With something like this: cat /var/log/httpd/-access_log | grep "alert(document.cookie);" | awk '{print $1}' | uniq Why would be an effective way to send the output of that command to iptables? Thanks in advance for any input!

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  • iis7 .net webservice 404 error

    - by agilenoob
    I have a webservice /test/Service1.asmx in the same folder as a page /test/test.aspx. The page works fine but I get the message bellow for the services in the same location. I know the file is there and the url is correct, and I have added the script module and managed handler as well. If anyone knows what I'm missing here I'd appreciate it Server Error in '/' Application. The resource cannot be found. Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly. Requested URL: /test/Service1.asmx Version Information: Microsoft .NET Framework Version:2.0.50727.4200; ASP.NET Version:2.0.50727.4016 FAILED REQUEST LOG: ModuleName ManagedPipelineHandler Notification 128 HttpStatus 404 HttpReason Not Found HttpSubStatus 0 ErrorCode 0 ConfigExceptionInfo Notification EXECUTE_REQUEST_HANDLER ErrorCode The operation completed successfully. (0x0)

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  • How do you live-migrate Hyper-V to Azure?

    - by TopHat
    I have a new install of Windows Server 2012 with the Hyper-V role setup and a couple VMs running along fat, dumb, and happy. I want to play with Azure hosting for VMs for a couple of stand-alone boxes. Is there anything special that I need to wire up to be able to live-migrate to Azure? I have the 90-day Azure trial account right now. Any special plumbing required? I have not found a lot of documentation about this yet. Everything I found points to manually copying the VHDs via command line and the Azure 2012 SDK.

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  • Postfix + Cpanel compatibility

    - by Mishari
    I am working on a VPS that has cPanel installed and I wanted to install Postfix on it. However I find that cPanel seems to be quite tightly integrated with Exim. I have done a google search but have only found vague statements that says "cPanel does not support postfix" but I haven't found any authoritative sources in this matter. So my question is, what happens if I disable exim entirely and install postfix instead? Will it break cPanel? Will everything run as normal? Update with more questions: Can I leave Exim for cPanel's internal use and use postfix for everything else? If so, what will happen to dovecot?

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  • Debian is equal to Ubuntu

    - by rkmax
    The title of the question is confusing, and does not explain my point well. I've always used Ubuntu server from version 10.04 and never had problem, now I have 4 machines with ubuntu 12.04.1 LTS installed on them and I found that under any circumstances where there is a high burden throws me a problem and machine crashes constantly. the most common is CPU#X stuck for Ns! Now I wonder if the administration of Debian is equal to that of ubuntu, regarding Servicos, packages, folders structure for example I would like to know if the services are installed in the same manner using invoke-rc.d, which handles additional security, including for not giving blind caning. I've been looking for a comparison chart but have not found anything yet, something between Debian 6.0.6 and Ubuntu 12.04 also the most common "hiccups" when you install the system

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  • Using unsigned drivers in Windows 8

    - by T. Fabre
    I just migrated from Windows 7 x64 to 8, but I can't get my VPN software to run anymore : the SafeNet IKE service (installed by SafeNet SoftRemoteLT GA, used by my VPN provider) cannot start anymore. I found that by default unsigned drivers are disabled on Win8, and that is what is blocking the driver. The System event log tells me that the driver (apparently, C:\WINDOWS\SysWow64\Drivers\IPSECDRV.sys ) was blocked when I try to manually start the service (SafeNet IKE Service). I get the same messages for another driver, crypto.sys found in the same folder. I tried using bcdedit to enable unsigned drivers : bcdedit /set loadoptions DDISABLE_INTEGRITY_CHECKS bcdedit /set testsigning ON After reboot, same error. I tried by booting into Win 8's test mode, same issue. Applying the code signing policy (Enabled, Ignore) does not help either. Running gpresult does show that the policy is applied. Any help welcome.

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  • Echo 404 directly from nginx to improve performance

    - by user64204
    I am in charge of production servers serving static content for a website. Those servers are constantly being crawled by bots looking for potential exploits (which isn't that much of a problem security-wise because no application can be reached behind the web server) but generates thousands of 404 per day, sometimes per hour. I am looking into ways of blocking those requests but it's tricky (you want to make sure you don't block legitimate traffic and these bots are becoming more and more clever at looking like they're legit) and is going to take me a while to find an acceptable solution. In the meantime I would like to reduce the performance impact of serving those 404 pages. Indeed we're using nginx which by default is configured to serve it's 404 page from the disk (This can be changed using the error_page directive but in the end the 404 will either have to be served from disk or from another external source (e.g. upstream application which would be worst)) which isn't ideal. I ran a test with ab on my local machine with a basic configuration: in one case I echo a message directly from nginx so the disk isn't touched at all, in the other case I hit a missing page and nginx serves its 404 from disk. server { # [...] the default nginx stuff location / { } location /this_page_exists { echo "this page was found"; } } Here are the test results (my laptop has Intel(R) Core(TM) i7-2670QM + SSD in case you're wondering why they are so high): $ ab -n 500000 -c 1000 http://localhost/this_page_exists Requests per second: 25609.16 [#/sec] (mean) $ ab -n 500000 -c 1000 http://localhost/this_page_doesnt_exists Requests per second: 22905.72 [#/sec] (mean) As you can see, returning a value with echo is 11% ((25609-22905)÷22905×100) faster than serving the 404 page from disk. Accordingly I would like to echo a simple 404 Page not Found string from nginx. I tried many things so far but they all failed, essentially the idea was this: location / { try_files $uri @not_found; } location @not_found { echo "404 - Page not found"; } The problem is that as soon as the echo directive is used, the http response code is set to 200. I tried changing that by doing error_page 200 = 400 but that breaks the configuration. How can I serve a 404 page directly from nginx? (without hacking the source which may be might next step)

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  • Encrypt tar file asymmetrically

    - by DerMike
    I want to achieve something like tar -c directory | openssl foo > encrypted_tarfile.dat I need the openssl tool to use public key encryption. I found an earlier question about symmetric encryption at the command promt (sic!), which does not suffice. I did take a look in the openssl(1) man page and only found symmetric encryption. Does openssl really not support asymmetric encryption? Basically many users are supposed to create their encrypted tar files and store them in a central location, but only few are allowed to read them.

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