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  • Coldfusion 9 losing connection to MySQL 5 database server a couple of weeks after the server is started

    - by user1503757
    We get the following Coldfusion error message after our server have been running for a couple of weeks: Error Executing Database Query.Could not create connection to database server. Attempted reconnect 3 times We run Coldfusion Enterprise 9 on a one year old XServer with Snow Leopard and MySQL 5 The server has about ten DSN set up in the Coldfusion Administrator All local, with default advanced settings, and host set to "localhost" The server is not under heavy load. The strange thing is that after a restart of the server, everything works fine. Then after a week or so, some databases will stop working, in the sense that Coldfusion cannot create a connection to them. If I then go to the Coldfusion Administrator and click "Verify all datasources", I will get that only 2 or 3 got verified, the other ones failed, and it is always the same datasources that can't be verified when the server starts to behave like this if I try to verify again, BUT NOT neccessary the same datasources that couldn't be verified the last time the server behaved like this. I know about the setting "max_connections" and we have included a line for that setting in the MySQL config file and set it to 2000, and when we read it by a query it says "2000", so that can't be the problem. Anyone?

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  • Site to Site VPN problem, connection succesful data only oneway?

    - by Charles
    To start things off, I'm not the actual Administrator for the VPN Server, but he is also at a loss so I thought I'd ask it here. I know it's a Cisco ASA Firewall/VPN. I have a router that connects to the Cisco VPN server, it does so succesfully. I can ping everything within the remote network and from the remote network into my own. I've been able to SSH into a remote server over VPN as well, it all seems to work; until there's some more data returned. A quick example would be an internal webserver. The default homepage simply redirects, so only sends back HTTP headers with a "Location:". I receive this on my computer, but when I request the actual page then (which isn't that big) I don't get a response at all - it just stalls. And it does this for other services as well, for example SSH. I can do a couple of things while connected, but if there's more than xx output it seems to do nothing. The connection remains active throughout all of this. Has anyone ever experienced anything like this before / know what the problem might be? Another user who has a site-to-site connection with this VPN using the -exact same setup- has no problems, the only difference is that I have around 200ms ping to the VPN server/network because of a very long distance (other continent).

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  • How do I fix skype on x86 11.10 desktop which garbles audio both ways in connection with a Windows user?

    - by keepitsimpleengineer
    Strange phenomena ? I have a friend I connect with and talk to regularly occasionally using video. He runs Windows XP with a Logitech webcam and mike. I run Windows XP with a Logitech webcam and mike, and a laptop with built in webcam and mike running both 11.10 x86 Desktop and Windows XP Home. We gab and ogle fine with these. But when I installed 11.10 x86 with GNOME 3.2 dual boot on the same machine with the Logitech webcam and mike, whenever I try to ogle and gab the audio is total garbled. When I make a test call to skype or call somebody on a landline or cell - there's no problem. In summary, everything works except for when running 11.10 x86 GNOME 3.2 connected to his Windows XP. Stumped on this end.

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  • How to mount NAS folders via direct wired connection?

    - by Pavel Vlasov
    There are two machines connected to each other via network cable. One is notebook Ubuntu 12.04. Another is NAS Western Digital with a Debian. The NAS has some files shared via samba. I am not sure how it is called but under Windows these files are accessible via path \mybooklive\public. I know there is NFS - probably it is preferable over samba... So, how to get my files accessible from Ubuntu when a cable is plugged?

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  • Real benefits of tcp TIME-WAIT and implications in production environment

    - by user64204
    SOME THEORY I've been doing some reading on tcp TIME-WAIT (here and there) and what I read is that it's a value set to 2 x MSL (maximum segment life) which keeps a connection in the "connection table" for a while to guarantee that, "before your allowed to create a connection with the same tuple, all the packets belonging to previous incarnations of that tuple will be dead". Since segments received (apart from SYN under specific circumstances) while a connection is either in TIME-WAIT or no longer existing would be discarded, why not close the connection right away? Q1: Is it because there is less processing involved in dealing with segments from old connections and less processing to create a new connection on the same tuple when in TIME-WAIT (i.e. are there performance benefits)? If the above explanation doesn't stand, the only reason I see the TIME-WAIT being useful would be if a client sends a SYN for a connection before it sends remaining segments for an old connection on the same tuple in which case the receiver would re-open the connection but then get bad segments and and would have to terminate it. Q2: Is this analysis correct? Q3: Are there other benefits to using TIME-WAIT? SOME PRACTICE I've been looking at the munin graphs on a production server that I administrate. Here is one: As you can see there are more connections in TIME-WAIT than ESTABLISHED, around twice as many most of the time, on some occasions four times as many. Q4: Does this have an impact on performance? Q5: If so, is it wise/recommended to reduce the TIME-WAIT value (and what to)? Q6: Is this ratio of TIME-WAIT / ESTABLISHED connections normal? Could this be related to malicious connection attempts?

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  • How to connect a Win XP PC and Win 7 PC with a Linksys WRT54G Router to a PPPOE connection ?

    - by ChristianM
    I have two PCs and a WRT56G Router. My provider is a PPPOE connection (username and password). I can connect my Windows 7 easily. Even if I choose Auto or PPPOE on the router's configuration. Maybe because this one had the connection in the first place with the username and password set up. But I can't connect the Windows XP PC. Actually it does connect in a way, but it receives and sents just a few packages. I can actually see in My Network Places how many packages does the Gateway make and it's a big difference. And it won't open any page. How should I set up the router so I can give enough bandwith to the Windows XP PC ? I've seen another problem that I forgot to mention. The router can't connect with the pppoe settings. I don't know why, but with Auto DHCP setting and my Windows 7 connected with pppoe settings works. EDIT2: I've installed Win 7 on the other PC so I won't have any problem of compatibility betwen them. But I still can't connect the router with PPPOE settings to the internet. It looks like this: http://img641.imageshack.us/img641/9780/capturefba.png If you need any other screens or info, please tell me.

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  • Working with QuickBooks using LINQPad

    - by dataintegration
    The RSSBus ADO.NET Providers can be used from many applications and development environments. In this article, we show how to use LINQPad to connect to QuickBooks using the RSSBus ADO.NET Provider for QuickBooks. Although this example uses the QuickBooks Data Provider, the same process applies to any of our ADO.NET Providers. Create the Data Model Step 1: Download and install both the Data Provider from RSSBus and LINQPad (available at www.linqpad.net Step 2: Create a new project in Visual Studio and create a data model for it using the ADO.NET Entity Data Model wizard. Step 3: Create a new connection by clicking "New Connection", specify the connection string options, and click Next. Step 4: Select the desired tables and views and click Finish to create the data model. Step 5: Right click on the entity diagram and select 'Add Code Generation Item'. Choose the 'ADO.NET DbContext Generator'. Step 6: Now build the project. The generated files can be used to create a QuickBooks connection in LINQPad. Create the connection to QuickBooks in LINQPad Step 7:Open LINQPad and click 'Add New Connection'. Step 8: Choose 'Entity Framework DbContext POCO'. Step 9: Choose the data model assembly ('.dll') created by Visual Studio as the 'Path to Custom Assembly'. Choose the name of the custom DbContext, the path to the config file, and assign a name to the connection that will allow you to recognize its purpose. Step 10: Congratulations! Now you have a connection to QuickBooks, and you can query data through LINQPad.

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  • Is there a way to use a SSH connection to access SMB or UPnP files without setting up a VPN?

    - by Michael Chapman
    What I'm trying to do is set up a SSH key that only gives access to certain directories, for security reasons I don't want it to have full access to my SSH server. I already have the ability to access the directories I need over my local network (right now using SMB, although I also used UPnP for awhile). I need, however, to be able to access those files securely over the internet from both Ubuntu and Windows machines. I'm somewhat new to SSH and not sure what the best approach to solving my problem is. If anyone knows how I can do this or where I can find a detailed tutorial I'd be grateful. And as always if anything is confusing or if there are any comments or corrections please let me know.

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  • Can a 10-bit monitor connection preserve all tones in 8-bit sRGB gradients on a wide-gamut monitor?

    - by hjb981
    This question is about color management and the use of a higher color depth, 10 bits per channel (30 bits in total, resulting in 1.07 billion colors, or 1024 shades of gray, sometimes referred to as "deep color") compared to the standard of 8 bits per channel (24 bits in total, 16.7 million colors, 256 shades of gray, sometimes referred to as "true color"). Do not confuse with "32 bit color", which usually refers to standard 8 bit color with an extra channel ("alpha channel") for transparency (used to achieve effects like semi-transparent windows etc). The following can be assumed to be in place: 1: A wide-gamut monitor that supports 10-bit input. Further, it can be assumed that the monitor has been calibrated to its native gamut and that an ICC color profile has been created. 2: A graphics card that supports 10-bit output (and is connected to the monitor via DisplayPort). 3: Drivers for the graphics card that support 10-bit output. If applications that support 10-bit output and color profiles would be used, I would expect them to display images that were saved using different color spaces correctly. For example, both an sRGB and an adobeRGB image should be displayed correctly. If an sRGB image was saved using 8 bits per channel (almost always the case), then the 10-bit signal path would ensure that no tonal gradients were lost in the conversion from the sRGB of the image to the native color space of the monitor. For example: If the image contains a pixel that is pure red in 8 bits (255,0,0), the corresponding value in 10 bits would be (1023,0,0). However, since the monitor has a larger color space than sRGB, sending the signal (1023,0,0) to the monitor would result in a red that was too saturated. Therefore, according to the ICC color profile, the signal would be transformed into a different value with less red saturation, for example (987,0,0). Since there are still plenty of levels left between 0 and 987, all 256 values (0-255) for red in the sRGB color space of the file could be uniquely mapped to color-corrected 10-bit values in the monitor's native color space. However, if the conversion was done in 8 bits, (255,0,0) would be translated to (246,0,0), and there would now only be 247 available levels for the red channel instead of 256, degrading the displayed image quality. My question is: how does this work on Ubuntu? Let's say that I use Firefox (which is color-aware and uses ICC color profiles). Would I get 10-bit processing, thus preserving all levels of an 8-bit picture? What is the situation like for other applications, especially photo applications like Shotwell, Rawtherapee, Darktable, RawStudio, Photivo etc? Does Ubuntu differ from other operating systems (Linux and others) on this point?

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  • How can I install .NET framework 3.5 on XP machines without internet connection?

    - by EricSchaefer
    I want to install .NET framework 3.5 on a couple of machines that do not have internet access. If I install the "no internet access"-package it still wants to download something. How can I figure out what is missing? Are there other installation packages? Edit: I would present screenshots but I cannot upload anything from here and the shots would be in german. So I present only the text translated back to english... Installing the "full redistributable package": At the bottom of the license agreement page it display this text: Size of download file: 67 MB Appoximate download time: 2h 44min (56KBit/s) 18min (512KBit/s) It shows the text even if I installed Windows Installer 3.1. After agreeing it displays the "Download and Installation Status"-Dialog with a progress bar labeled "Download:" and Status: Connection to server attempted (try X of 5). Total Download Status: 56MB/67MB I tried it in a VM with no network connection. It tries 5 times while the progress bar shows progress. Later the progress bar is labeled "Installation:". Even later it reports problems during setup and provides two buttons "Send Report Later" and "Don't Send". Now here it comes: "Setup completed" and "Microsoft .NET Framework 3.5 has been deinstalled successfully." (Emphasis is mine) "It is recommended to install current service packs and security updates. More information at Windows Update (link)." Edit2: Installed Service Pack 3, but still no success.

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  • Operation times out trying to SSH outside LAN i.e. from internet to LAN no connection is established

    - by Pelle L
    I run Ubuntu 12.04 and have no success connecting with SSH from "Internet". The router is a TL-MR3420 which is set up to forward requests to one of the NIC's on ubuntu machine (which has in total 3 NICs). I can SSH from a client on the "local" network/LAN. The forward mechanism in the router seems to work. If I stop SSH service on the Ubuntu machine and instead start one on the windows machine - it works like a charm. I do not use the Std port 22 but that shouldn't be an issue as far as I understand - sine it works on the same port on the win machine. Since my public IS isn't static I use a dynDNS service but as said earlier the same setup works from the win machine. The router is located on 192.168.0.1 The Ubuntu NICs has the following IP: eth2 192.168.0.100 , eth1 192.168.0.101 , eth0 192.168.0.102 and I have forwarded the "outside" request to 192.168.0.100 In regards for firewall settings on the Ubuntu machine I have disabled the ufw and the command ufw status give status: inactive. I don't now it this is relevant information but teh command iptables --list give: Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination I have tried to catch traffic with help of wireshark (a tool I'm not too used to use) and it seems as a few (3?) "requests" actually reaches the NIC but ... nothing happens. The syslog does not show any entries during these attempts. Perhaps it could be some routing issues but I have reached my level of competence and are stuck ... all help and support to get this sorted out is much appreciated. I'm new to Linux so please do not assume I have a configuration that is correct - but as I wrote earlier - if the client that initiate SSH is on the LAN it all works. PS:I have also tried to get VPN (PPP) working from Internet with no success - once again VPN works on the windows machine ... so my best guess is that this is related to how the ubuntu machine handles (IP) traffic and not the TL-MR3420 router or other network issues.

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  • Having a list of rooms with theirs connection to each other, how do I find isolated room groups?

    - by petervaz
    I'm trying to create a small roguelike and went as far as random generating rooms and corridors. Each room is an instanced object and contain an arraylist of the others rooms connected by a corridor. I can single out unconnected rooms but how can I know the rooms that are connected only to each other but not to most of the others, forming an island? to illustrated better the problem here is an image from the console on a bogged level. Rooms 5 and 6 are connected only to each other. What algorithm can I use to detect that?

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  • Is Google indexing pages that has no connection with other pages? [duplicate]

    - by Grkmksk
    This question already has an answer here: How did Google find my unlinked newly created pages? 3 answers I am working on a web project that has nearly 100 thousand instant users and there is a webpage that we are using for test cases. There are no links pointing to it from other pages. It shouldn't be indexed by Google or any other search engines. "noindex" can be used in this situation, I know but I wonder if Google (or any others) indexes this page, if I don't do anything to prevent it.

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  • [Toplink] How to add c3p0 or DBCP Connection pool?

    - by Jean N.T.
    Hello, Could you please explain to me how to add a standalone c3pO or DBCP connection pool to my toplink-based JPA project? I have a persistence.xml file, and everytime I want to query the database, I'm doing this: EntityManagerFactory emf = this.getEntityManagerFactory(); // Surely using persistence.xml to set up the factory EntityManager em = emf.createEntityManager(); ... Where do I build the bridge between my external connection pool manager and Toplink? Any ideas or links are welcomed. Regards, Jean

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  • Using the erlang mysql module, how is a database connection closed?

    - by Dan
    In using the erlang mysql module the exposed external functions are: %% External exports -export([start_link/5, start_link/6, start_link/7, start_link/8, start/5, start/6, start/7, start/8, connect/7, connect/8, connect/9, fetch/1, fetch/2, fetch/3, prepare/2, execute/1, execute/2, execute/3, execute/4, unprepare/1, get_prepared/1, get_prepared/2, transaction/2, transaction/3, get_result_field_info/1, get_result_rows/1, get_result_affected_rows/1, get_result_reason/1, encode/1, encode/2, asciz_binary/2 ]). From the this this, it is not apparent how to close a connection. How a connection closed?

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  • Debate: Can a HTTPS connection be hijacked with a man-in-the-middle kind of attack?

    - by Iulian Serbanoiu
    Hi, I'm wondering if the company I work for can see what I'm doing when I'm using a HTTPS connection - gmail for example. My case: I'm using gmail from work but I need to enter a password for a proxy when accesing the first web page - the password is asked inside the browser. I receive from the proxy a certificate which I must accept in order to make the Internet connection work. So the question is: Can https data exchange, between gmail and browser, be tracked? Thanks, Iulian

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  • Connection for control user as defined in your configuration failed. xampp

    - by Zann
    when i tried to uninstall xampp and reinstall xampp.I received below error message when i go phpmyadmin Need help and guide to solve it .thanks Error MySQL said: Documentation 1045 - Access denied for user 'root'@'localhost' (using password: NO) Connection for controluser as defined in your configuration failed. phpMyAdmin tried to connect to the MySQL server, and the server rejected the connection. You should check the host, username and password in your configuration and make sure that they correspond to the information given by the administrator of the MySQL server.

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  • Is it possible to keep mysql migration running without keeping connection open?

    - by taw
    ALTER TABLE can easily take a few days - and during this time there's a non-negligible chance of connection getting terminated due to network problems. Is it possible to start ALTER TABLE (or CREATE TABLE ... SELECT ...; or some other very long running query) and leave it running without keeping connection open all the time? (the obvious solution of screen + console mysql client won't easily work as there's no ssh running on that server, only mysqld).

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