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• SNMP - So I have a MIB. Now What?

  - by senfo

  I can't seem to get my head wrapped around the purpose of a MIB. I have a collection of ~20 MIB files that were supplied to me by the vendor, but what do I do with them? I also have a few OID's that were supplied by the vendor that don't seem to be valid. When I issue an "snmpget -v1 -c public 192.168.0.123 .1.4.6.3.2.6.2" (assume that's a valid OID), I get an error indicating the variable is unknown. Does this sound like a hardware configuration problem? Do I need to "load" (for lack of better words) the MIB into the device? Unfortunately, the vendor has been completely unresponsive with returning emails to my questions, so any help would be greatly appreciated.

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• Ubuntu Studio 10.4 boots to terminal mode only

  - by Don

  I did clean install from ISO DVD. It boots only to command line asking for login. After I login I enter STARTX and desktop appears and some of the studd actually works, but there are a lot of problems: there is no way to reboot or shut down except to stopx/logoff and enter shutdown sound system doesn't respond pulse audio volume control gives "connection failed, connection refused" DVD drives not available GDebi Package installer is grayed out and so I can't use it (but synaptic package manager works OK) Software Center won't start when clicked -- it just stops trying DBus cant run because it says /usr/local/var/run/dbus/system_bus_socket file not found (also /var/run/dbus/system_bus_socket file not found) There's just a lot of things wrong and I can't help but think something is missing or was mis-coded in the distro so that there are typos in some script somewhere. If anyone can tell me where to begin to untangle this mess I'd appreciate it, but I think it all begins when it can't start the GUI automatically and I need to enter STARTX.

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• Splitting an archive on multiple media

  - by Robert Munteanu

  I'm generating archives which are larger than my current physical media ( DVD ). I'd like to split those archives: automatically - instead of generating mini-archives by hand; consistently - so that an archive can be extracted independently of another. For instance for a tree of 24GB which would be archived into 10GB I would get 3 archives, all of them < 4.7 GB and each of them being able to be extracted without the other 2. I'm using dirvish so I'm archiving a filesystem tree. Update: I'm using Linux.

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• How to access MySQL on Windows

  - by Dan

  This may sound like a really dumb question, but I normally only deal with MSSQL, no LAMP stuff, so I'm struggling to figure out what's going on. I have Windows 7 and have installed MySQL 5.1 through Web Platform Installer. I have HeidiSQL installed to manage data in MySQL, but how do I connect? In Heidi it's asking for 'Hostname / IP' which is prepopulated with 127.0.0.1. It prepopulates the user field to 'root' (which is right) and I'm entering the password I chose when MySQL was installed. However, it just errors when I connect, saying: SQL Error (1045): Access denied for user 'root'@'localhost' (using password: YES). Can anyone point me in the right direction here? Many thanks...

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• When to use MySQL replication or DRBD for HA on Xen VM?

  - by user62513

  I'm setting up a database which needs to be needs to provide High Availabilty. My primary concern is high performance and robustness (I don't want something that will fail fast and badly). The database is accessed by the application at an average of 300 qps. It's will run on Xen VMs and it has some InnoDB tables as well as MyISAM tables. The VMs are connected via ethernet 100Mbit/s ethernet cables. Which of the two - MySQL replication or DRBD - would you recommend in such a situation? Or should I use DRBD to make the master database Highly Available and use MySQL replication on the slaves? I'm a developer so these things are all not so easy for me to make a sound judgement.

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• Recovered video files won't play

  - by BioGeek

  I have an SD card with pictures and video which malfunctioned. I was able to recover the files with Photorec. The pictures are OK, but wen I try to open the vide files (*.mov extension) in get the following errors when I try to open them in the following programs Windows Media player: "Windows Media Player encountered a problem while playing the file" Quicktime: "Error -2048: Couldn't open the file because it is not a file that QuickTime understands" VLC: it shows the first frame of the video and the sound is just white noise The filesizes look correct so I presume the data is still in there. Is there any way to fix these recovered video files?

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• JBoss behind NAT hostname problem

  - by z0mbix

  My company has a JBoss cluster sitting behind a firewall that performs NAT. We forward ports to JBoss from the firewall, so that our client application can access the server. We are having trouble when JBoss replies it tells the clients to connect to the internal hostname, not the external one with which the initial connection was made. Is this something that is easily resolved/configured? How are other JBoss app servers configured behind NAT firewalls? Split-horizon DNS? Many Thanks

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• Cannot login to fresh Kubuntu installation as admin, but only as guest

  - by Cedric Reichenbach

  I just installed a fresh Kubuntu 12.10 on a machine beside Windows 7. After successful installation, I rebooted and wanted to login. But when I type my password and hit Enter, some command line screen shows up for the split of a second and then it thows me back to the login screen without any error message. It's hard to spot what the command line text says, but I couldn't see any error or something like that. Anyway, when I log in as guest (without password), everything works finely. Also, when going to a system command line (using Ctrl+Alt+F1), I can login with my account without any problems. Does anyone have a clue what is going on and how to fix it?

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• When load balancing, must all copies of static web page be exactly the same?

  - by Gilles Blanchette

  I am used to get answers for everything on the web, but not this time... Yesterday I enable Amazon DNS weight functionally to load balance 7 websites between two different IP addresses (split 50%-50%). Both servers run IIS 8.5, sites runs well on both sides. Today I found out that Google WebMasterTools is reporting fails error with file robots.txt, all close to 50% of access try errors. The robots.txt file is ok and accessible (even via Google testing URL page) on both servers. Lets say current version of static web pages are on the first computer and the updated version of the same web pages are on the second computer. Can it be the problem? When load balancing, can static web pages be slightly different from one host server to the other? Thank you for your help

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• Uploading many large files to a remote server

  - by TiernanO

  I am in the process of creating an offsite backup, and need to do a initial load of data. Currently, that's about 400Gb, give or take 10Gb or so... The backup system is producing files which are about 4Gb each, and has some other, smaller related files also. So, i need to transfer all 400ish gigs to a remote server, but how? What is the best method? I have full remote access to the server, so i can install anything i need to install. There are Windows, Linux and a Solaris VM running on the box itself, so any of those can be used there, and i have Windows and Linux at home. I have 2 internet connections in house, 10Mb/s uploading on each, so something that could potentially split the number of connections would be handy (kind of like GetRight, but in reverse... PutRight?).

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• HP Pavilion dv3 volume control display driver on Windows 7

  - by Farinha

  I've recently bought an HP Pavilion dv3-2150ep and I'm having a hard time getting the volume control display to work as expected. The control is a back-lit touch-sensitive bar above the keyboard. Now the buttons to turn the volume up and down actually do it, but the lightning is not changing at all. The mute button does change color when toggled. I'm not sure if I'm missing any drivers here (I've installed all of those on the HP support page that seem to have something to do with sound and/or display) or if I have to activate this somewhere. Any ideas?

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• 3 Monitors on a Notebook

  - by Rihan Meij

  I would like to use 3 screens on my Dell Inspiron 1720 So On the laptop built in screen have that as one, and then have 2 more screens. The catch is, that I want to play racing games with this set-up. So that my main screen is the focus area (the front window if you will) and the other 2 screens will be used for peripheral vision, on the side. The software that I use (LFS.net) does support multiple screens. However the notebook can have the main screen on, and another external screen. So I would need to split this "second" monitor output, to 2 screens, the one to the left of the main monitor, and the other one to the right. Is this possible? Is there perhaps a external card / docking station solution that could help with this? Any advice or ideas is greatly appreciated. Best Regards Rihan

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• No Drivers in Ubuntu 9.10

  - by Chris

  I have a Lenovo G550 and I installed Ubuntu on it through Windows and I have no drivers. No sound, no wireless. I previously had installed it through Windows Vista with no problems at all. I now run Windows 7 and cannot seem to get it to function properly. I tried installing the recommended drivers to make sure the proper ones were installed and that still did nothing. Any one have ANY idea what could be happening? I just don't feel like dealing with it.

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• using modrewrite to change http to https? (not redirect)

  - by PaulHanak

  This might sound a little crazy, but bare with me. I basically have an include file, lets say inc-navigation.html, that has absolute paths (http://www.pathtoimage.com/image.com) that are on EVERY PAGE. Well, using SSL, I can't use that same include file because it is not referencing https:// What a pain! SO, I was maybe thinking of using htaccess to do a url rewrite of all references of HTTP to HTTPS when the browser requests a https page. Again, just to be clear, I don't want to "redirect", just "replace". So, I have this.... RewriteCond %{HTTPS} !=on RewriteRule ^http$ https but it doesn't seem to be working. I probably have the syntax wrong though. :) Of course, this is even if this type of thing is even possible!?

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• checking virtual sub domains

  - by Persian.

  I create a project that check the sub domain and redirect to the exist subdomain ( username ) but I can't find out why when the username is in database it can't show it . on local system it works finely .. but when I upload it on server it not works .. of course I change the commented place to uncomment for test .. but it's not working .. it shows this error : Object reference not set to an instance of an object. My code is this in page load : //Uri MyUrl = new Uri(Request.Url.ToString()); //string Url = MyUrl.Host.ToString(); Uri MyUrl = new Uri("http://Subdomain.Mydomain.com/"); string Url = MyUrl.Host.ToString(); string St1 = Url.Split('.')[0]; if ((St1.ToLower() == "Mydomain") || (St1.ToLower() == "Mydomain")) { Response.Redirect("Intro.aspx"); } else if (St1.ToLower() == "www") { string St2 = Url.Split('.')[1]; if ((St2.ToLower() == "Mydomain") || (St2.ToLower() == "Mydomain")) { Response.Redirect("Intro.aspx"); } else { object Blogger = ClsPublic.GetBlogger(St2); if (Blogger != null) { lblBloger.Text = Blogger.ToString(); if (Request.QueryString["id"] != null) { GvImage.DataSourceID = "SqlDataSourceImageId"; GvComments.DataSourceID = "SqlDataSourceCommentsId"; this.BindItemsList(); GetSubComments(); } else { SqlConnection scn = new SqlConnection(ClsPublic.GetConnectionString()); SqlCommand scm = new SqlCommand("SELECT TOP (1) fId FROM tblImages WHERE (fxAccepted = 1) AND (fBloging = 1) AND (fxSender = @fxSender) ORDER BY fId DESC", scn); scm.Parameters.AddWithValue("@fxSender", lblBloger.Text); scn.Open(); lblLastNo.Text = scm.ExecuteScalar().ToString(); scn.Close(); GvImage.DataSourceID = "SqlDataSourceLastImage"; GvComments.DataSourceID = "SqlDataSourceCommentsWId"; this.BindItemsList(); GetSubComments(); } if (Session["User"] != null) { MultiViewCommenting.ActiveViewIndex = 0; } else { MultiViewCommenting.ActiveViewIndex = 1; } } else { Response.Redirect("Intro.aspx"); } } } else { object Blogger = ClsPublic.GetBlogger(St1); if (Blogger != null) { lblBloger.Text = Blogger.ToString(); if (Request.QueryString["id"] != null) { GvImage.DataSourceID = "SqlDataSourceImageId"; GvComments.DataSourceID = "SqlDataSourceCommentsId"; this.BindItemsList(); GetSubComments(); } else { SqlConnection scn = new SqlConnection(ClsPublic.GetConnectionString()); SqlCommand scm = new SqlCommand("SELECT TOP (1) fId FROM tblImages WHERE (fxAccepted = 1) AND (fBloging = 1) AND (fxSender = @fxSender) ORDER BY fId DESC", scn); scm.Parameters.AddWithValue("@fxSender", lblBloger.Text); scn.Open(); lblLastNo.Text = scm.ExecuteScalar().ToString(); scn.Close(); GvImage.DataSourceID = "SqlDataSourceLastImage"; GvComments.DataSourceID = "SqlDataSourceCommentsWId"; this.BindItemsList(); GetSubComments(); } if (Session["User"] != null) { MultiViewCommenting.ActiveViewIndex = 0; } else { MultiViewCommenting.ActiveViewIndex = 1; } } else { Response.Redirect("Intro.aspx"); } } and my class : public static object GetBlogger(string User) { SqlConnection scn = new SqlConnection(ClsPublic.GetConnectionString()); SqlCommand scm = new SqlCommand("SELECT fUsername FROM tblMembers WHERE fUsername = @fUsername", scn); scm.Parameters.AddWithValue("@fUsername", User); scn.Open(); object Blogger = scm.ExecuteScalar(); if (Blogger != null) { SqlCommand sccm = new SqlCommand("SELECT COUNT(fId) AS Exp1 FROM tblImages WHERE (fxSender = @fxSender) AND (fxAccepted = 1)", scn); sccm.Parameters.AddWithValue("fxSender", Blogger); object HasQuty = sccm.ExecuteScalar(); scn.Close(); if (HasQuty != null) { int Count = Int32.Parse(HasQuty.ToString()); if (Count < 10) { Blogger = null; } } } return Blogger; } Which place if my code has problem ?

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• Deciding to use VM or native install for new hardware

  - by Billy Moon

  I have a Ubuntu 10.10 installation running on hardware. I upgraded the hardware, and am planning to move the system over. Whilst reading the many various ways to do this, I came across tools for making a virtual machine out of a hardware installation. I think this might make managing my server easier in the future if I run it as a virtual machine. Also, I will be able to easily split responsibilities of my server, for example running MySQL on a separate virtual machine hosted on the same physical machine. Is it a good idea to install my production server as a virtual machine inside another thin server installation? What are the pros/cons and pitfalls?

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• Motherboard or Processor Problem

  - by bradlis7

  My computer is broken, but I'm having trouble narrowing down the issue. I replaced the power supply, because I assumed that was the issue, but it has the same problem. The issue started with my computer starting the fans and running, but it didn't get to the BIOS screen for about 10 seconds. Now it refuses to do anything when the power button is pressed, except when I turn off the machine and take the processor out for 10-20 seconds, then put it back in, I came hit the power button immediately, and the fans start for 1/2 second, and quit. Does this sound like a is a processor or motherboard issue? I removed all components, so I know that the issue is with one of these two things.

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• Export to excel - COMMA issue

  - by 6242Y

  I want to put a string in an excel sheet from my Export to excel function. However my string is as follows: string : Red, red wine Go to my head Make me forget that I Still need and on my excel I get unexpected results , column change after comma and also column change when there is no full stop in front of an UPPER CASE alphabet. The Upper case alphabets (without a full stop before them) are also causing this (Go , Make . Still) How can I solve this issue ? I tried removing the spaces after the comma as var desc = ""; if (o.Description.Contains(',')) { var trimmedSplits = new List<string>(); var splits = o.Description.Split(','); foreach (var stringBits in splits) { desc = desc + stringBits.Trim() + ","; } desc = desc.Remove(desc.Length - 1); } dtRow[(int)ProductRangeExportToExcel.Description] = desc;

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• Looking for Unix tool/script that, given an input path, will compress every batch of uncompressed 100MB text files into a single gzip file

  - by newToFlume

  I have a dump of thousands of small text files (1-5MB) large, each containing lines of text. I need to "batch" them up, so that each batch is of a fixed size - say 100MB, and compress that batch. Now that batch could be: A single file that is just a 'cat' of the contents of the individual text files, or Just the individual text files themselves Caveats: unix split -b will not work here as I need to keep lines of text intact. Using the lines option is a bit complicated as there is a large variance in the number of bytes in each line. The files need not be a fixed size strictly, as long as it's within 5% of the requested size The lines are critical, and should not be lost: I need to confirm that the input made its way to output without loss - what rolling checksum (something like CRC32, BUT better/"stronger" in face of collisions) A script should do nicely, but this seems like a task someone has done before, and it would be nice to see some code (preferably python or ruby) that does atleast something similar.

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• Applescript create event in calendar, how do I remove the default alert?

  - by zero0cool

  Running 10.8 Mountain Lion, I'm trying to create a new event with Applescript like this: set theDate to (current date) tell application "Calendar" tell calendar "Calendar" set timeString to time string of theDate set newEvent to make new event at end with properties {description:"Last Backup", summary:"Last Backup " & timeString, location:"To a local unix system", start date:theDate, end date:theDate + 15 * minutes, allday event:false, status:confirmed} tell newEvent delete every display alarm delete every sound alarm delete every mail alarm delete every open file alarm end tell end tell end tell However, this does not remove the default Calendar alert which one can set through Calendar preferences (30 minutes prior in my case). How do I create an event with no alarms at all through Applescript?

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• How to increase the volume gain when viewing online flash video?

  - by Nick000

  When watching online Flash videos on Youtube, Dailymotion, etc... sometimes the videos are recorded at low volume. The thing is that, I have a HP Notebook with good enough audio volume, but when I watch these "low volume" videos the sound level is really low, even when I have the volume at 100%. So I am looking for a way to increase the volume gain (like VLC player where you can increase it to 200%), BUT while watching it live on Youtube... that is, I don't want to download the video on my PC. Is there a software that can do that? Maybe an advanced flash video player that integrates to browser? or some other software to increase the volume gain overall on my laptop? My Specs: HP Pavilion Notebook, Audio: IDT High Definition Audio CODEC (integrated), Vista 64-bit, 4 GB RAM, etc.....

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• How much does a IPtables router slow down a connection?

  - by RayQuang

  Hi, I would like to know if introducing a new gateway in my network will slow things down. The question may sound unclear but here is an illustration: Before Installing gateway server Main Router <=> switches <=> servers after installing gateway Server Main Router <=> IPtables router <=> switches <=> servers My question is. How much will this delay incoming outgoing requests / file transfers. thanks, RayQuang

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• Redirect audio from laptop to desktop over LAN

  - by Ram Rachum

  I want to be able to play a song on my laptop and have it sound through my desktop's (infinitely better) speakers. If you're familiar with Input Director: I want something that is to audio what Input Director is to mouse/keyboard. I want something that automatically redirects all audio from the laptop to the desktop in real time, and I want that solution to require, like Input Director, minimum maintenance. Beyond the initial setup, I don't want to have to babysit the program that does this. I want something that launches automatically with Windows and just works, and also allows me to cancel it whenever I want. And also doesn't go crazy when the laptop is turned on in a different network where the desktop computer isn't available. Any suggestions for such a program? (I use Windows XP on both computers.)

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• bursty streaming video

  - by broiyan

  What is the cause and solution for the bursty streaming media problem? Example: when streaming from youtube, audio (and video) will pause and start intermittently. When it starts it will be bursty, that is, it will play several seconds of sound in just a fraction of a second. Normal sounds are rendered unrecognizable. Then it may pause and after a few seconds, resume with another burst. The video seems to burst along with the audio. This was observed on Ubuntu 12.04 with Google Chrome.

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• Creating a webserver from scratch

  - by Val

  I know this is going to sound a humongous task and many of you would think why in the world would you want to do so or why re-invent the wheel. However I just want a project I can work on the side see how it goes and experiment ( I got a thirst for learning something new and this is a great challenge). Question Where would I start creating a server-side scripting like php, asp and (now) node.js I would like to have a few examples, and most importantly a CODEX/documentation where I can learn and find out more how it works. I guess I am asking for directions where to go to read and find out more about this. Many thanks,

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