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  • Cannot connect on TFS 2012 server through SSL with invalid certificate

    - by DaveWut
    I saw the problem on some forums and even here, but not as specific as mine. So here's the thing, So I've configured a TFS 2012 server, on one of my personnel server at home, and now, I'm trying to make it available through the internet, with the help of apache2 on a different UNIX based, physical server. The thing is working perfectly, I don't have any problem accessing the address https://tfs.something.com/tfs through my browser. The address can be pinged and I do have access to the TFS control panel through it. How does it work? Well, with apache2 you can set a virtual host and set up the ProxyPass and ProxyPassReserver setting, so the traffic can externally comes from a secure SSL connection, through a specified domain or sub-domain, but it can be locally redirect on a clear http session on a different port. This is my current setup. As I already said, I can access the web interface, but when I'm trying to connect with Visual Studio 2012, it can't be done. Here's the error I receive: http://i.imgur.com/TLQIn.png The technical information tells me: The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel. My SSL certificate is invalid and was automatically generated on my UNIX server. Even if I try to add it in the Trusted Root Certification Authorities either on my TFS server or on my local workstation, it doesn't work. I still receive the same error. Is there's a way to completely ignore certificate validation? If not, what's have I done? I mean, I've added the certificate in the trusted root certificates, it should works as mentioned on some forums... If you need more information, please ask me, I'll be pleased to provide you more. Dave

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  • I love google Chrome, but some non-static pages like Piwik render it unresponsive

    - by gogowitsch
    The web-stat software Piwik stops reacting on mouse clicks after 1-2 seconds. The same is true for Google Maps and Producteev (but GMail and most other pages work like a charm). These rely heavily on JS, and work without Flash. I can click for a very short time period and then the mouse cursor doesn't feel the UI anymore (it doesn't turn into a I over input fields, though it moves; if the freeze occured while the pointer was over an input field, the cursor keeps being a I) and all clicks on the DOM are being ignored by Chrome. No message appears, neither obvious nor in the Console (F12). There is no obstructing div or the like in the DOM (F12). Since I couldn't find any hints on the source of my problems, I suspected my plugins and extensions. Unfortunately, neither deactivating all plugins nor all extensions solved the problem. for the problematic pages, it always happens no Dropbox running several GB of free RAM the taskmanager doesn't show any high CPU or memory utilization (the offending tab uses 30 MB and uses 0-1 % CPU) all problematic pages work in other browsers (Chrome, Firefox, IE) the rest of the computer is very responsive the computers use different security suites (Kaspersky and Avira) The effect exists between several (synchronized) Chrome instances on different machines, all running Windows 7. Both the OS and Chrome are updated automatically. Other tabs and the Chrome chrome (tabs, menus, toolbar buttons of the browser itself) still work. I really don't like switching between browsers. Any ideas?

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  • 'txn-current-lock': Permission denied [500, #13] - Subversion + Apache Configuration Issue

    - by wfoster
    Current Setup Fedora 13 32bit Apache 2.2.16 Subversion repositories setup under /var/www/svn I have two different repositories under this directory so my /etc/httpd/conf.d/subversion.conf setup in this way; LoadModule dav_svn_module modules/mod_dav_svn.so LoadModule authz_svn_module modules/mod_authz_svn.so <Location /svn> DAV svn SVNListParentPath on SVNParentPath /var/www/svn <LimitExcept GET PROPFIND OPTIONS REPORT> AuthType Basic AuthName "Subversion Repository" AuthUserFile /etc/httpd/.htpasswd Require valid-user </LimitExcept> </Location> After copying over my repos and using; chmod 755 -R /var/www/svn chcon -R -t httpd_sys_content_t /var/www/svn chown apache:apache -R /var/www/svn I can browse my repos fine through the browser, and I can update all my working copies, however when I try to check in from anywhere I get the same error Can't open file '/var/www/svn/repo/db/txn-current-lock':Permission denied I have been working on this issue for a while now and cant seem to find a solution to my issues. It might be of some use to know that the repo existed on a different server before this, it has been now moved to this new server. Everything I have read seems to indicate that the permissions for apache are incorrect, however apache is set to run as User apache and Group apache. So as far as I can tell my setup is correct. The behavior is not though. Any Ideas? Solution The only way I was able to get this to work is to disable SELinux, it could also be done by setting the proper booleans with SELinux via setsetbool and getsebool since this is just a home server, I decided to disable SELinux and am reaping the benefits now.

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  • keyboard intermittently stops working even after reinstalling windows 7; possibly a Chrome issue?

    - by neverskipbreakfast
    My keyboard intermittently stops working. Sometimes a couple of keys will work, but usually none. Sometimes if I mash the ctrl+alt+windows keys randomly for a bit, the keyboard will let me type one more letter before stopping again. Sometimes the keys will open a program menu but usually not. I have even completely wiped my machine and reinstalled windows 7; the problem continues. Specs: Intel iMac (early 2006, 2.0GHz, 2MB RAM, 240GB HD) running ONLY Windows 7 Professional, 32-bit (NOT through boot camp) and using a USB keyboard (Saitek Eclipse II.) Unplugging & reconnecting keyboard does NOT fix it. Connecting a different keyboard does NOT fix it. That one won't work, either. Drivers are up-to-date. Removing and reinstalling drivers does NOT fix it. Restarting the computer does NOT fix it. In fact, when the Windows logon screen appears the keyboard won't work and neither will the icon to pull up the on-screen keyboard. My mouse can click around just fine. I can only log onto a non-password protected account. Generally, logging into as different Windows user fixes it. I can then log back on to my main user account and continue work for a few hours until it happens again. Clearing my Chrome browsing data stopped the problem from recurring for a week or so. I have already REINSTALLED Windows 7 (not just a restore.) The problem returned after 2 days of use. I use Avira free antivirus software, and repeated scans turn up nothing fishy. I suspect it is related to something in Google Chrome because I used my google account to reload all my previous Chrome extensions, saved data, etc. (Chrome Extensions Installed: AdBlock, Better Google Tasks, DropBox, FB Photo Zoom, Google Mail Checker, StayFocusd.) Any ideas? Any at all?

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  • UPS with a HP Proliant server

    - by Groo
    We placed a EATON Ellipse Max 1500 (900W) as the UPS for our HP Proliant ML350 G6. Upon first power failure (actually we only moved the UPS' input plug to a different socket), server immediatelly turned off, and the Health LED turned red and started blinking. UPS was in operation for about a week before that, with battery fully charged to 100%. Since our server's hot-plug supply is 460W, we are pretty sure we haven't overloaded it, the server was completely idle at that time (no web or win apps running except Windows Server core services). Then we tried to do the same with a different, no-name older PC (Core 2 Duo, 2Gb RAM) with a generic power supply (not sure what the power is) and it continued working when we pulled the plug out. UPS load was less than 15% (measured in the provided Eaton utility). We measured the UPS' output voltage using a smart oscilloscope and the THD of the UPS output waveform turned out to be 40%. Did you have similar experiences? Could this be a faulty UPS? Or a faulty power supply? Or some HP sensors configured to trigger too strictly? I wouldn't like replacing this UPS with the same brand, to get same results. [Edit] I also tried to do this while the server is turned off. While the UPS is working on battery, server will not start - as soon as I press the power button, Health LED starts blinking red.

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  • Clustering/load balancing for cluster unaware applications

    - by AaronLS
    Forgive me if I use any of these terms incorrectly. I am wondering if there is any kind of software that would allow my two "join" two computers together such that a cluster unaware application could utilize their combined computing resources? By "cluster unaware" I mean an application that isn't designed to share work across multiple services. My understanding is that clustering is enabled by the specific application by it's architecture, such that messaging with multiple instances of the application coordinate the sharing of work. Instead I am looking for something that enables clustering at the OS or virtualization level, so that any application could essentially be clustered. Failing that, I am also wondering about the following scenario: We have 3 different applications we will call A, B, and C. We have 2 single core computers. At any given time lets say that any combination of those applications will be CPU intensive. In cases where only 2 of those apps are very active, have one of them moved over to a different server. In a nutshell, some sort of dynamic automatic shuffling of the application's load. I have heard of virtual machines that can be migrated across physical machines while live, but I am wondering if this can be done automatically in response to an application's or VM's CPU activity?

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  • How to tackle dell support system? [closed]

    - by Nishant Kumar
    We have purchased a Dell Optiplex 9010 SSFV for our organization's work. Since the first installation two of the USB keyboard keys were not working properly. I had to press those keys two times simultaneously, on first time keys did not work and for for second time it printed two characters (as it were buffering first character.) Two keys that were not working properly: Hexangrave (Below the ESC key: `) Double Quotes (Left the enter key ") We registered our complaint with DELL and they suggested (with some hard to understand and weird ENGLISH accent) some test and tricks, such as switching to different ports, checking keyboard on different PC, and it worked well with diff. PC(with Windows 7 Home Premium installed). It was clear that it is an OS fault, hence they suggested to re-install OS. Problem began here, we have a project on the run and currently a video editing project setup on our system, so can't re-install system in hurry and also DELL persons were not providing any other solution such as updating keyboard driver, etc. Arguments I am a Software Engg. and don't think it is a feasible solution to re-install entire system for simple problems. This prob is coming since the fresh system installation, so I don't think it will solve the problem. Finally, I had to find solution myself and got it here, now I want to show my disappointment to dell persons or at least tell them that they should improve there support system to not advice to re-install entire system for that simple problems. Notes We have purchased 5 years NEXT business day support from DELL for around 8000 INR (Not for that kind of solutions from DELL). So can anyone tell me how to tackle dell support system officially, so that they will pay more attention in near future. Thanks

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  • HTTP Upload Problems

    - by jfoster
    We are running a marketplace on ColdFusion8 and IIS with a widely geographically distributed user base and have been receiving complaints of issues with some HTTP uploads. Most of the complaints are coming from geographically distant locations from our main datacenter on the US east coast. I've attempted to upload the same 70MB file from a US West coast test server to both our main site and a backup running the same code on a different network route and I saw the same issues fairly consistently in both places, so I've ruled out the code, route, and internal network errors. I've also tested uploads using both the native cf upload tag and a third party tool called SaFileUp. I saw the same issues with both upload tools, so I also don't think this is necessarily a ColdFusion problem. I don't have any problems uploading the test file from the East coast to other east coast servers, so I'm beginning to think that the distance between our users and our equipment is a factor. I've also found that smaller files are more likely to succeed than large ones (< 10MB) I tried the test upload with both IE and FF and did notice a difference in the way that the browsers seemed to handle packet errors. IE seemed to have a tough time continuing an upload after dropped / bad packets, whereas FF seemed to have the ability to gracefully resume an upload after experiencing packet problems. Has anyone experienced similar issues? Is there anything we can do on our side to make uploads more forgiving to packet loss or resumable after an error? A different upload tool etc… Do we need upload servers in more than one location to shorten the network routes between clients and servers? Does anyone think that switching uploads to SSL will help (no layer7 packet sniffing may lead to a smoother upload). Thanks.

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  • Enabling Samba Shares Across Subnets

    - by John
    I was curious how I could go about setting up SAMBA so that shares could be seen and used across different subnets. We have some Linux devices that are bound to Active Directory and we would like to have them serve SAMBA shares to clients that will reside in a different subnet than what the servers reside in? Is there any way to do this without needing to setup a WINS server or use legacy NetBIOS methods since the majority of our clients are Windows 7, Windows Server 2003, Windows Server 2008, and Macintosh OS X (10.6 or newer)? EDIT Right now, only clients in the same subnet as the SAMBA server can see the shares. Clients outside of the subnet (i.e. the client subnet) cannot see or connect to the share. The error returned is: The specified network name is no longer available. It does not seem to matter if I use IP, FQDN, or NetBIOS name to try and connect to the share with. We have a common Cisco router handling the inter-subnet routing. Everything else seems to work correctly with this network setup and the device can be pinged from multiple subnets. I also do not believe it to be a firewall type of issue since the rules for this segment are rather lax.

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  • RRAS NAT not working on a certain computer

    - by legenden
    This is driving me crazy. I have a virtualized W2K8 server running RRAS. Every other computer or server on the network can access the internet through the NAT except one. On one server, it just won't work. I can ping the ip address of the NAT gateway just fine, and everything else works. (SMB, etc) DNS, which is hosted by the same server, also works just fine. I have even reinstalled the OS on the problem server and it still doesn't work. Recap of the steps I tried: There are 3 network cards in the server, I tried every one and different switch ports. Not a hardware problem. Reinstalled W2K8 R2 on server with the problem, didn't help. Tried the IP of the internet gateway directly - this did work (!). But I need NAT to work. All firewalls are disabled. Removed computer from domain, deleted computer membership in Active Directory Users and Computers and added it back. Disabled all other network adapters and set a static ip and specified the gateway ip manually. When I tracert a public IP, the first hop (or any other hop) comes up as: C:\>tracert www.google.com Tracing route to www.l.google.com [209.85.225.106] over a maximum of 30 hops: 1 * * * Request timed out. 2 * * * Request timed out. From a different computer, on which NAT works, the first hop comes up as: tracert www.google.com Tracing route to www.l.google.com [209.85.225.105] over a maximum of 30 hops: 1 <1 ms * <1 ms xxxx [10.5.1.1] This is the most bizarre problem I ever came across, and I realize that it's a long shot asking it here given all the details, but I'm pulling my hair out. Maybe someone has an idea...

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  • Cannot open Pivot Table source file

    - by Ken
    Excel Pivot table error is: Cannot open Pivot Table source file C:\Users\UserName\AppData\Roaming\Microsoft\Excel\DatabaseName (version1).TableName I’ve seen other questions and answers with the same topic, but I think this is different. I believe I know why the error is occurring: Excel closed unexpectantly and did autosave with (version1) attached to the original file name and saved it in the C:\User etc. above , which is the default recovery location. I opened the recovered file in Excel, saved it as version1 on the server where the original file was located, deleted the original file, and renamed the version1 to the original name. When I go to PivotTable Tools? Options? Change Data Source, it shows only the Table and Range, which are correct, but it does not show the file name or path. The version1 and the renamed file both had the same structure, so the same source table was in both, by they were different files. How do I change the source file from what it is looking for to my renamed file? PS- The (version1) file that it says it is looking for is not in the autosave location, i.e. it is not at the path where it says it is looking in. Thank you for any help Ken

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  • multiple streaming servers behind a Bastion Host

    - by Bond
    I am using open source streaming server Red5 on multiple servers. Which are running behind a bastion host. the world knows these sites as http://site1.mydomain.com http://site2.mydomain.com http://site3.mydomain.com http://site4.mydomain.com To reach the front end server is using Apache Reverse Proxy. I am also having video streaming on each of these websites using rtmp. To be able to reach the streaming server I embed a javascript in HTML pages as follows Code: <embed ..... var="rtmp://site1.my_domain.com" > the problem is the website are many site1.mydomain.com site2.mydomain.com site3.mydomain.com site4.mydomain.com each on a separate physical server. Each of these four have their own Red5 installations the front end to each of these four is a common Bastion Host. If I run rtmp on each of the subdomains at a different port how will I make sure a request such as rtmp://site1.mydomain.com rtmp://site2.mydomain.com goes to their respective servers. from the front end server. What do I need to handle in this case ? IPTABLES came to mind instantly but from the client browser on internet when some one requests rtmp://site1.mydomain.com how will I make sure this rtmp request is mapped to a port different than 1935 as there are three other streaming servers which are also to respond to their respective requests ?

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  • Windows AD DNS: Event ID 5504

    - by Chris_K
    Two of my AD controllers (both running DNS service) appear to be having a similar issue. Both are throwing lots of events in the DNS events that look like this: Event Type: Information Event Source: DNS Event Category: None Event ID: 5504 Date: 5/24/2010 Time: 11:51:38 AM User: N/A Computer: ALPHA Description: The DNS server encountered an invalid domain name in a packet from 76.74.137.6. The packet will be rejected. The event data contains the DNS packet. That will come with the same event, same time, with a packet from 76.74.137.7 as well. I know this is "Information" not an error, but since it is new and different it bothers me (yes, I fear unexplained change!) Both machines are running Windows 2003 R2 SP2. The DNS servers are not exposed to the internet. Both DNS servers are configured to use OpenDNS for Forwarders. For both servers, this started about a week ago. Any thoughts on: 1) should I be concerned? 2) how can I stop/fix this? To keep it interesting, I have a 3rd AD / DNS box. Same domain, different Active Directory site. Same forwarders, yet doesn't have this issue.

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  • Are Colocation Cross Connects Worth While

    - by SvrGuy
    We currently operate three clusters of collocated machines in different data centers. Recently, I became aware that our newest data center will offer to cross connect us to a bandwidth provider free of charge. In the past, I never really investigated a cross connect for bandwidth because I figured that the rates would be similar to what we are paying the colo now and that it would reduce our resiliency (because we would only be using one or two carriers for IP, where as the colo uses, say 8 different providers). Then I saw an ad for hurricane electric internet services (http://he.net/cgi-bin/ip_transit_quote) that gave a price for IP transit at $1/Mbs, which is much better than the $30/Mb we pay for the blended bandwidth. What are people out there typically paying for bandwith via cross connect and how hard is to setup? Is my understanding that what you do is open agreemetns with two or three ISPs, cross connect to them and then configure your top of rack router on their network. Can you really get IP transit down to a couple of dollars per megabit per month just by doing the routing yourself? Or, is my understanding of cross connection fundamentally wrong?

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  • The physical working paradigm of a signal passing on wire.

    - by smwikipedia
    Hi, This may be more a question of physics, so pardon me if there's any inconvenience. When I study computer networks, I often read something like this in order to represent a signal, we place some voltage on one end of the wire and the other end will detect the voltage and thus the signal. So I am wondering how a signal exactly passes through wire? Here's my current understanding based on my formal knowledge about electronics: First we need a close circuit to constrain/hold the electronic field. When we place a voltage at somewhere A of the circuit, electronic field will start to build up within the circuit medium, this process should be as fast as light speed. And as the electronic field is being built up, the electrons within the circuit medium are moved, and thus electronic current occurs, and once the electronic current is strong enough to be detected at somewhere else B on the complete circuit, then B knows about what has happend at A and thus communication between A and B is achieved. The above is only talking about the process of sending a single voltage through wire. If there's a bitstream and we need to send a series of voltages, I am not sure which of the following is true: The 2nd voltage should only be sent from A after the 1st voltage has been detected at B, the time interval is time needed to stimulate the electronic field in the medium and form a detectable electronic current at B. Several different voltages could be sent on wire one by one, different electronic current values will exists along the wire simutaneously and arrive at B successively. I hope I made myself clear and someone else has ever pondered this question. (I tag this question with network cause I don't know if there's a better option.) Thanks, Sam

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  • Etag configuration with multiple apache servers or CDN / How does Google do ETags?

    - by perrierism
    I have an application which is served from two apache2 servers and I want to configure the ETags on static content. In the future I would also like to use a CDN. I see that this is supposed to be a problem because the Etag information will be different from server to server... The ETag format for Apache 1.3 and 2.x is inode-size-timestamp. Although a given file may reside in the same directory across multiple servers, and have the same file size, permissions, timestamp, etc., its inode is different from one server to the next. So if you're using more than one webserver to host your app (like 90% of the webapps you use everyday do), it's supposed to be an issue. However I see Google uses Etags, and certainly they use multiple servers and CDN and edge caching, etc... I get a 304 response for any cached Google content. How do they do it? How do you get around the multiple server issue? Is there a way to configure this with Apache?

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  • Problem with TL-R480T+ and static routes

    - by Globulopolis
    Hi! I've some question about this router. Before starting, some configurations, specified by my provider. Wan1 VPN IP - 192.168.172.84 Mask - 255.255.255.0 Gateway - 192.168.172.253 DNS - 195.110.6.7 Wan2 Dynamic IP DHCP - 168.120.1.34 Mask - 255.255.255.0 Router IP 192.168.1.1 Computer IP 192.168.1.7 Routes: route -p add 192.168.0.0 mask 255.255.0.0 192.168.172.253 route -p add 195.110.6.0 mask 255.255.254.0 192.168.172.253 route -p add 88.135.112.0 mask 255.255.240.0 192.168.172.253 route -p add 178.219.160.0 mask 255.255.240.0 192.168.172.253 For first provider I need to provide a routes. 'Cause router does not support different routes for different WAN interfaces I put them in "Static routes". But when I try to save them I've got an error: Destination IP address can not be set in a same subnet with the WAN or LAN IP address. If I change IP's to local like 192.168.x.x router tell me: Gateway must be set in a same subnet with WAN or LAN IP address. Changing mask on WAN1 interface to 255.255.0.0 doesn't help. Any ideas? PS! Or maybe I'm must email to TP-Link support?

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  • Request bursting from web application Load Tests

    - by MaseBase
    I'm migrating our web and database hosting to a new environment on all new machines. I've recently performed a Load Test using WAPT to generate load from multiple distributed clients. The server has plenty of room to handle the traffic load, but I'm seeing an odd pattern of incoming traffic during the load tests. Here is the gist of our setup: Firewall server running MS Forefront TMG 2010 on Win 2k8 server Request routing done by IIS Application Request Routing on firewall machine Web server is a Hyper-V VM on the Database server (which is the host OS) These machines are hefty with dual-CPU's with six cores (12 total procs) Web server running IIS 7.5 Web applications built in ASP.NET 2.0, with 1 ISAPI filter (Url Rewrite) in front What I'm seeing during the load tests is that the requests all come through in bursts. Even though I have 7 different distributed clients sending traffic loads, the requests come through about 300-500 requests at a time. The performance monitor shows nearly all of the counters moving through this pattern, where a burst of requests comes in the req/sec jumps to 70, the queued requests jumps to 500, the current requests jumps up, the CPU jumps up, everything. Then once it's handled that group of requests, it has a lull for nearly 10 seconds where nearly nothing is happening. 0-5 req/sec, 0 queued requests, minimal CPU usage. Then after 10 seconds of inactivity, another burst comes through, spiking all of the counters once again. What I can't figure out is why the requests are coming through in bursts when I know that the load being generated is not sent that way, especially considering the various load-generating clients sending traffic all in different intervals with random think time's between each request. Is there something in the layers between Hyper-V or perhaps in the hardware which might cause this coalesce of requests together? Here is what i'm looking at, the highlighted metric is Requests/sec, but the others critical counter go with it: Requests Queued (which I'd obviously like to keep as close to 0 as possible). Any ideas on this?

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  • Terminating multi-mode fiber

    - by murisonc
    I'm looking at the feasibility of terminating multi-mode fiber connections ourselves. We would be using LC connectors. I've done some research and found two different methods. One requires polishing the ends and using epoxy while the other doesn't. I like the idea of not having to polish the ends but there doesn't seem to be much information on quality or ease of use. I've found two vendors (3M and Corning) that offer kits for terminating fiber without polishing or using epoxy. Does anyone have any experience with both methods that can offer some advice? Copper is easy but fiber seems to be a whole different animal. EDIT: After looking into fusion splicing suggested in the answer I've determined it's not for us. It's my understanding that is primarily used for outside plant and is better suited for single mode fiber. It's a good answer but doesn't address the question directly. Some more information about our situation. We will only be terminating multi-mode fiber inside a building and only doing between 4 and 20 pair a year. Hiring an outside person won't work due to our location. There are currently a couple people on-site that can terminate fiber (working for another company and charging large fees) but they can only do ST and SC connectors and we only use LC. So once again does anyone have experience with terminating using both epoxy type connectors and the other type (similar to Corning Unicam)?

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  • multiple ip for a server not reachable

    - by andrewk
    FYI: I've read everything on Serverfault related to this question and have faced a different issue. Simply put, I've got one server (apache2) with couple of sites on it. It currently has 1 ip. I'm trying to assign/add another ip to that server, so I can give each site a different ip for ssl purposes. I am not lucking out. The new ip simply is unreachable, I've pinged it. This is what I've got below, what am I doing wrong. auto lo iface lo inet loopback auto eth0 eth0:0 eth0:1 iface eth0 inet static address 70.116.5.244 netmask 255.255.255.0 gateway 70.116.5.1 #THE NEW IP iface eth0:0 inet static address 26.175.217.102 netmask 255.255.255.0 #PRIVATE IP iface eth0:1 inet static address 192.168.158.88 netmask 255.255.128.0 NOTE: THESE IP'S ARE TWEAKED BUT RELATIVE I've read many questions here 90% similar to this but most actually have the IP respond, not this case. Thanks netstar -r output Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface default gw-u6.linode.co 0.0.0.0 UG 0 0 0 eth0 70.116.5.0 * 255.255.255.0 U 0 0 0 eth0 26.175.217.0 * 255.255.255.0 U 0 0 0 eth0 192.168.128.0 * 255.255.128.0 U 0 0 0 eth0

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  • Firebird database corruption causes

    - by Rytis
    I am running several different Firebird versions (2.0, 2.1) on multiple entry level Windows-based servers with wildly varying hardware. The only matching thing between them is that they are running same home built application with the same database structure. Lately I've been seeing massive slowdowns on multiple servers. Turns out that database gets corrupted, so each time it breaks, I get to mend, backup and restore the database, and it all is fine for some time (1-2 weeks), and then it repeats once again. Thankfully, I haven't seen any data loss or damage... yet. The thing is that every such downtime results in lost productivity, and often quite some driving for me as some of the databases are in remote locations. I've been trying to find out what's causing the corruption, but I haven't been able to. The fact that it's running on different hardware hints that it should not be a hardware based problem. If we rule out hardware issues, I have a bad feeling that it's a bug in Firebird as I'm not doing anything fancy via SQL. Do you have any idea how to find out exactly what's causing the corruption and hopefully fix the problem?

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  • Welcome to Jackstown

    - by fatherjack
    I live in a small town, the population count isn't that great but let me introduce you to some of the population. We'll start with Martin the Doc, he fixes up anything that gets poorly, so much so that he could be classed as the doctor, the vet and even the garage mechanic. He's got a reputation that he can fix anything and that hasn't been proved wrong yet. He's great friends with Brian (who gets called "Brains") the teacher who seems to have a sound understanding of any topic you care to pass his way. If he isn't sure he tells you and then goes to find out and comes back with a full answer real quick. Its good to have that sort of research capability close at hand. Brains is also great at encouraging anyone who needs a bit of support to get them up to speed and working on their jobs. Steve sees Brains regularly, that's because he is the librarian, he keeps all sorts of reading material and nowadays there's even video to watch about any topic you like. Steve keeps scouring all sorts of places to get the content that's needed and he keeps it in good order so that what ever is needed can be found quickly. He also has to make sure that old stuff gets marked as probably out of date so that anyone reading it wont get mislead. Over the road from him is Greg, he's the town crier. We don't have a newspaper here so Greg keeps us all informed of what's going on "out of town" - what new stuff we might make use of and what wont work in a small place like this. If we are interested he goes ahead and gets people in to demonstrate their products  and tell us about the details. Greg is pretty good at getting us discounts too. Now Greg's brother Ian works for the mayors office in the "waste management department" nowadays its all about the recycling but he still has to make sure that the stuff that cant be used any more gets disposed of properly. It depends on the type of waste he's dealing with that decides how it need to be treated and he has to know a lot about the different methods and when to use which ones. There are two people that keep the peace in town, Brent is the detective, investigating wrong doings and applying justice where necessary and Bart is the diplomat who smooths things over when any people have a dispute or disagreement. Brent is meticulous in his investigations and fair in the way he handles any situation he finds. Discretion is his byword. There's a rumour that Bart used to work for the United Nations but what ever his history there is no denying his ability to get apparently irreconcilable parties working together to their combined benefit. Someone who works closely with Bart is Brad, he is the translator in town. He has several languages that he can converse in but he can also explain things from someone's point of view or  and make it understandable to someone else. To keep things on the straight and narrow from a legal perspective is Ben the solicitor, making sure we all abide by the rules.Two people who make for an interesting evening's conversation if you get them together are Aaron and Grant, Aaron is the local planning inspector and Grant is an inventor of some reputation. Anything being constructed around here needs Aarons agreement. He's quite flexible in his rules though; if you can justify what you want to do with solid logic but he wont stand for any development going on without his inclusion. That gets a demolition notice and there's no argument. Grant as I mentioned is the inventor in town, if something can be improved or created then Grant is your man. He mainly works on his own but isnt averse to getting specific advice and assistance from specialist from out of town if they can help him finish his creations.There aren't too many people left for you to meet in the town, there's Rob, he's an ex professional sportsman. He played Hockey, Football, Cricket, you name it. He was in his element as goal keeper / wicket keeper and that shows in his personal life. He just goes about his business and people often don't even know that he's helped them. Really low profile, doesn't get any glory but saves people from lots of problems, even disasters on occasion. There goes Neil, he's a bit of an odd person, some people say he's gifted with special clairvoyant powers, personally I think he's got his ear to the ground and knows where to find out the important news as soon as its made public. Anyone getting a visit from Neil is best off to follow his advice though, he's usually spot on and you wont be caught by surprise if you follow his recommendations – wherever it comes from.Poor old Andrew is the last person to introduce you to. Andrew doesn't show himself too often but when he does it seems that people find a reason to blame him for their problems, whether he had anything to do with their predicament or not. In all honesty, without fail, and to his great credit, he takes it in good grace and never retaliates or gets annoyed when he's out and about.  It pays off too as its very often the case that those who were blaming him recently suddenly find they need his help and they readily forget the issues pretty rapidly.And then there's me, what do I do in town? Well, I'm just a DBA with a lot of hats. (Jackstown Pop. 1)

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  • can't ssh within LAN, but can connect from outside

    - by Patrick B.
    A strange issue: I have a desktop running Ubuntu 10.04 behind a Netgear WNR1000 router performing NAT. I would like to be able to ssh into the desktop from my laptop (running Windows 7 and Cygwin). When at home, both the desktop and the laptop are connected by wireless (the desktop is in a different room from the router). sshd seems to be running fine, since ssh localhost from the desktop works without trouble. Also, ssh my.ip.address from my laptop when it is not behind the router works fine (I am forwarding port 22 on the router to my desktop). However, ssh same.ip.address from within the LAN fails with "Connection refused". ssh 192.168.local.ip.address fails with a different message, "Connection timed out". I can connect if I first ssh to a machine outside the LAN. So far I haven't found anything with Google because with the search terms that seem like they would be relevant, the vast majority of people have the opposite problem - i.e., they can't connect from outside the LAN but can connect within it. I can port forward through a remote server when I'm at home, but this seems like a totally absurd way to connect two computers on the same home LAN. I have already tried stopping and starting sshd on the desktop. Any thoughts?

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  • corrupted, hidden, wireless network adapter from "Network Connections" in Windows 7

    - by srihari reddy
    The issue is that when I install a wireless network adapter on my Windows 7 Professional machine I have no connectivity, the system tray icon has a red X. First, I tried the obvious, install updated drivers from the manufacturer. When I did this, the Network Connections icon had gray bars and there was no connectivity. So I tried installling the network adapter on a different computer on the same network and I verified that it does work with no issues. Next, I ran scan disk with no issues. Next, I ran sfc as admin with no issues. At this point I turned to the router and turned SSID broadcast on but that didn't help. I turned MAC address filtering off at the router but that didn't help. Whenever I installed the original network adapter (a wireless N usb adapter with WPA2 TKIP+AES) it showed up as "Wireless Network Connection 2" with a grayed out icon and no connectivity. Lastly, I tried installing two different "verified working" usb wireless adapters on to the Windows 7 Pro machine. The results were the same "Wireless Network Connection 2" that had a green bar icon but no connectivity. I installed the manufacturers software and it indicated the NIC was not there even thought the driver installed successfully in Device Manager. I guess I should mention, I first tried (insanely in vain) to use the (worthless) Windows Network troubleshooter. The results were....drumroll please... There is a problem with the network adapter... well No Duh! Also, during all of this the network adapter is always showing as "Working Properly" in the properties dialogue of Device Manager for the wireless NIC. I checked for hidden devices in Device Manager but there were none. Here is my fundamental question that I've tried to find in the Windows 7 support center with no luck. How do I remove/delete/uninstall network adapters from the Windows 7 registry? in particular hidden, corrupted network adapters, that used to be working.

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  • How to eliminate the downtime when a dynamic IP address changes?

    - by xenon
    We currently have a number of client computers linked up to a database server (MS SQL 2008) for replication. The database server recognises the computers based on their Windows hostname. We are using dynamic IP addresses at this time because we tend to change the computers’ hardware quite frequently, and so the MAC address may be different. Unless static IP has a good way for us to manage frequent changing of MAC addresses, we are keeping it to dynamic IP. The problem with dynamic IP addresses, however, is that when a client fetches an new IP from the DHCP, ie, there is a change in the IP address, there is going to have a downtime for the hostname to reflect the new IP address, the client’s DNS cache of the hostname to reload, and also the server’s DNS cache to reload to see the new IP from the hostname. All of these have different timings and the delay can be really bad at times. Restarting the computer doesn't work all the time too. The clients are on Windows 7. How can I eliminate the amount of downtime required when there is a change in IP in the case of dynamic IP addresses?

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