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  • New Blog Site

    - by Miguel A. Castro
    Effective immediately, my blog is hosted on www.dotnetdude.com. This blog will no longer be updated so please check out my new one and update your RSS feed with this link. Miguel

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  • Enabling Service Availability in WCF Services

    - by cibrax
    It is very important for the enterprise to know which services are operational at any given point. There are many factors that can affect the availability of the services, some of them are external like a database not responding or any dependant service not working. However, in some cases, you only want to know whether a service is up or down, so a simple heart-beat mechanism with “Ping” messages would do the trick. Unfortunately, WCF does not provide a built-in mechanism to support this functionality, and you probably don’t to implement a “Ping” operation in any service that you have out there. For solving this in a generic way, there is a WCF extensibility point that comes to help us, the “Operation Invokers”. In a nutshell, an operation invoker is the class responsible invoking the service method with a set of parameters and generate the output parameters with the return value. What I am going to do here is to implement a custom operation invoker that intercepts any call to the service, and detects whether a “Ping” header was attached to the message. If the “Ping” header is detected, the operation invoker returns a new header to tell the client that the service is alive, and the real operation execution is omitted. In that way, we have a simple heart beat mechanism based on the messages that include a "Ping” header, so the client application can determine at any point whether the service is up or down. My operation invoker wraps the default implementation attached by default to any operation by WCF. internal class PingOperationInvoker : IOperationInvoker { IOperationInvoker innerInvoker; object[] outputs = null; object returnValue = null; public const string PingHeaderName = "Ping"; public const string PingHeaderNamespace = "http://tellago.serviceModel"; public PingOperationInvoker(IOperationInvoker innerInvoker, OperationDescription description) { this.innerInvoker = innerInvoker; outputs = description.SyncMethod.GetParameters() .Where(p => p.IsOut) .Select(p => DefaultForType(p.ParameterType)).ToArray(); var returnValue = DefaultForType(description.SyncMethod.ReturnType); } private static object DefaultForType(Type targetType) { return targetType.IsValueType ? Activator.CreateInstance(targetType) : null; } public object Invoke(object instance, object[] inputs, out object[] outputs) { object returnValue; if (Invoke(out returnValue, out outputs)) { return returnValue; } else { return this.innerInvoker.Invoke(instance, inputs, out outputs); } } private bool Invoke(out object returnValue, out object[] outputs) { object untypedProperty = null; if (OperationContext.Current .IncomingMessageProperties.TryGetValue(HttpRequestMessageProperty.Name, out untypedProperty)) { var httpRequestProperty = untypedProperty as HttpRequestMessageProperty; if (httpRequestProperty != null) { if (httpRequestProperty.Headers[PingHeaderName] != null) { outputs = this.outputs; if (OperationContext.Current .IncomingMessageProperties.TryGetValue(HttpRequestMessageProperty.Name, out untypedProperty)) { var httpResponseProperty = untypedProperty as HttpResponseMessageProperty; httpResponseProperty.Headers.Add(PingHeaderName, "Ok"); } returnValue = this.returnValue; return true; } } } var headers = OperationContext.Current.IncomingMessageHeaders; if (headers.FindHeader(PingHeaderName, PingHeaderNamespace) > -1) { outputs = this.outputs; MessageHeader<string> header = new MessageHeader<string>("Ok"); var untyped = header.GetUntypedHeader(PingHeaderName, PingHeaderNamespace); OperationContext.Current.OutgoingMessageHeaders.Add(untyped); returnValue = this.returnValue; return true; } returnValue = null; outputs = null; return false; } } The implementation above looks for the “Ping” header either in the Http Request or the Soap message. The next step is to implement a behavior for attaching this operation invoker to the services we want to monitor. [AttributeUsage(AttributeTargets.Method | AttributeTargets.Class, AllowMultiple = false, Inherited = true)] public class PingBehavior : Attribute, IServiceBehavior, IOperationBehavior { public void AddBindingParameters(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase, Collection<ServiceEndpoint> endpoints, BindingParameterCollection bindingParameters) { } public void ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase) { } public void Validate(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase) { foreach (var endpoint in serviceDescription.Endpoints) { foreach (var operation in endpoint.Contract.Operations) { if (operation.Behaviors.Find<PingBehavior>() == null) operation.Behaviors.Add(this); } } } public void AddBindingParameters(OperationDescription operationDescription, BindingParameterCollection bindingParameters) { } public void ApplyClientBehavior(OperationDescription operationDescription, ClientOperation clientOperation) { } public void ApplyDispatchBehavior(OperationDescription operationDescription, DispatchOperation dispatchOperation) { dispatchOperation.Invoker = new PingOperationInvoker(dispatchOperation.Invoker, operationDescription); } public void Validate(OperationDescription operationDescription) { } } As an operation invoker can only be added in an “operation behavior”, a trick I learned in the past is that you can implement a service behavior as well and use the “Validate” method to inject it in all the operations, so the final configuration is much easier and cleaner. You only need to decorate the service with a simple attribute to enable the “Ping” functionality. [PingBehavior] public class HelloWorldService : IHelloWorld { public string Hello(string name) { return "Hello " + name; } } On the other hand, the client application needs to send a dummy message with a “Ping” header to detect whether the service is available or not. In order to simplify this task, I created a extension method in the WCF client channel to do this work. public static class ClientChannelExtensions { const string PingNamespace = "http://tellago.serviceModel"; const string PingName = "Ping"; public static bool IsAvailable<TChannel>(this IClientChannel channel, Action<TChannel> operation) { try { using (OperationContextScope scope = new OperationContextScope(channel)) { MessageHeader<string> header = new MessageHeader<string>(PingName); var untyped = header.GetUntypedHeader(PingName, PingNamespace); OperationContext.Current.OutgoingMessageHeaders.Add(untyped); try { operation((TChannel)channel); var headers = OperationContext.Current.IncomingMessageHeaders; if (headers.Any(h => h.Name == PingName && h.Namespace == PingNamespace)) { return true; } else { return false; } } catch (CommunicationException) { return false; } } } catch (Exception) { return false; } } } This extension method basically adds a “Ping” header to the request message, executes the operation passed as argument (Action<TChannel> operation), and looks for the corresponding “Ping” header in the response to see the results. The client application can use this extension with a single line of code, var client = new ServiceReference.HelloWorldClient(); var isAvailable = client.InnerChannel.IsAvailable<IHelloWorld>((c) => c.Hello(null)); The “isAvailable” variable will tell the client application whether the service is available or not. You can download the complete implementation from this location.    

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  • links for 2011-03-11

    - by Bob Rhubart
    The Arup Nanda Blog: Good Engineering (tags: ping.fm) Spend Analytics on a Grand Scale (BI & Analytics Pulse) (tags: ping.fm) OSB and Coherence Integration (Mark Smith) (tags: ping.fm) Oracle Technology Network Architect Day: Denver (tags: ping.fm)

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  • TCP-Connection Establishment = How to measure time based on Ping RRT?

    - by Tom
    Hello Experts, I would be greatful for help, understanding how long it takes to establish a TCP connection when I have the Ping RoundTripTip: According to Wikipedia a TCP Connection will be established in three steps: 1.SYN-SENT (=>CLIENT TO SERVER) 2.SYN/ACK-RECEIVED (=>SERVER TO CLIENT) 3.ACK-SENT (=>CLIENT TO SERVER) My Questions: Is it correct, that the third transmission (ACK-SENT) will not yet carry any payload (my data) but is only used for the connection establishement.(This leads to the conclusion, that the fourth packt will be the first packt to hold any payload....) Is it correct to assume, that when my Ping RoundTripTime is 20 milliseconds, that in the example given above, the TCP Connection establishment would at least require 30 millisecons, before any data can be transmitted between the Client and Server? Thank you very much Tom

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  • Can't connect to localhost via browser. Can ping localhost.

    - by Sceptre
    I'm trying to connect to localhost through my browser to learn some apache tomcat stuff. When I tried to connect to localhost through Firefox, I couldn't; when I tried through IE, I could the first time, but not after that. I'm using Windows 7, and changed the hosts file to point localhost to 127.0.0.1. I can successfully ping localhost and 127.0.0.1. I have tried turning off my antivirus and my Windows Firewall, but to no avail. What am I doing wrong?

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  • Different routing rules for a particular user using firewall mark and ip rule

    - by Paul Crowley
    Running Ubuntu 12.10 on amd64. I'm trying to set up different routing rules for a particular user. I understand that the right way to do this is to create a firewall rule that marks the packets for that user, and add a routing rule for that mark. Just to get testing going, I've added a rule that discards all packets as unreachable: # ip rule 0: from all lookup local 32765: from all fwmark 0x1 unreachable 32766: from all lookup main 32767: from all lookup default With this rule in place and all firewall chains in all tables empty and policy ACCEPT, I can still ping remote hosts just fine as any user. If I then add a rule to mark all packets and try to ping Google, it fails as expected # iptables -t mangle -F OUTPUT # iptables -t mangle -A OUTPUT -j MARK --set-mark 0x01 # ping www.google.com ping: unknown host www.google.com If I restrict this rule to the VPN user, it seems to have no effect. # iptables -t mangle -F OUTPUT # iptables -t mangle -A OUTPUT -j MARK --set-mark 0x01 -m owner --uid-owner vpn # sudo -u vpn ping www.google.com PING www.google.com (173.194.78.103) 56(84) bytes of data. 64 bytes from wg-in-f103.1e100.net (173.194.78.103): icmp_req=1 ttl=50 time=36.6 ms But it appears that the mark is being set, because if I add a rule to drop these packets in the firewall, it works: # iptables -t mangle -A OUTPUT -j DROP -m mark --mark 0x01 # sudo -u vpn ping www.google.com ping: unknown host www.google.com What am I missing? Thanks!

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  • Windows 7 x64 wired connection problem. IP, gateway, dns assigned, can't ping. Network detected as "Network"

    - by Emil Lerch
    I am having a problem connecting to a specific wired network with my Latitude E6410 laptop. Other wired networks seem to work fine, but this one does not. I have a coworker with me with the same Intel 82577LM Gigabit Network card, and he can connect just fine. I've updated to the latest Intel drivers (11.8.75.0) and am not using Pro Set. I obtain all DHCP information just fine (IP, netmask, DNS server, default gateway). I cannot ping anything (internal or on the Internet - I tried pinging Google's public DNS servers by IP 8.8.8.8), nor can I get answers to any DNS queries through NS Lookup. Windows troubleshooting says everything is fine, but I can't get DNS responses. I've seen issues like this in the past that were related to link speed/duplex autonegotiaion failures, so I've tried manually setting link speed/duplex to all values one by one with no success. My coworker is using all default settings, so he is just using autonegotiate. Any ideas of other things to try?

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  • What should I use to ping multiple IPs and get notified of time outs?

    - by HumanVirus
    I've been using MultiPing to ping hundreds of IPs (from access points and such) and check their performance (packet loss, latency) and uptime. The program is very easy to use, but I was wondering if someone could recommend me something that would work better and that would also work in Linux. The features I'm looking for are: Notification Types: At least desktop notifications and SMS, but it would be great if it also had e-mail, IM, or other types of notifications. (MultiPing has some of these, but they don't work too well.) Being notified about the root problem only: Since some devices are dependent on others, I'd like to be notified only about the root problem. E.g. Let's say I have A[x.x.x.222]B[x.x.x.33C[x.x.x.44]D[x.x.x.55], and B goes down, therefore C and D will also be down. Is it possible to get a notification only about B being down? Light on resources. Ideally multiplatform or at least available for both Linux and Windows. I've heard about Nagios and Shinken being used for monitoring. Would you recommend that I use something of the sort or would that be too much for my needs? If using Nagios, Shinken, or similar software is recommended, can anyone tell me what sites I should go to or what books I should get that would be good for someone who is totally new at this? I'd appreciate any suggestions.

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  • Are Large iPhone Ping Times Indicative of Application Latency?

    - by yar
    I am contemplating creating a realtime app where an iPod Touch/iPhone/iPad talks to a server-side component (which produces MIDI, and sends it onward within the host). When I ping my iPod Touch on Wifi I get huge latency (and a enormous variance, too): 64 bytes from 192.168.1.3: icmp_seq=9 ttl=64 time=38.616 ms 64 bytes from 192.168.1.3: icmp_seq=10 ttl=64 time=61.795 ms 64 bytes from 192.168.1.3: icmp_seq=11 ttl=64 time=85.162 ms 64 bytes from 192.168.1.3: icmp_seq=12 ttl=64 time=109.956 ms 64 bytes from 192.168.1.3: icmp_seq=13 ttl=64 time=31.452 ms 64 bytes from 192.168.1.3: icmp_seq=14 ttl=64 time=55.187 ms 64 bytes from 192.168.1.3: icmp_seq=15 ttl=64 time=78.531 ms 64 bytes from 192.168.1.3: icmp_seq=16 ttl=64 time=102.342 ms 64 bytes from 192.168.1.3: icmp_seq=17 ttl=64 time=25.249 ms Even if this is double what the iPhone-Host or Host-iPhone time would be, 15ms+ is too long for the app I'm considering. Is there any faster way around this (e.g., USB cable)? If not, would building the app on Android offer any other options? Traceroute reports more workable times: traceroute to 192.168.1.3 (192.168.1.3), 64 hops max, 52 byte packets 1 192.168.1.3 (192.168.1.3) 4.662 ms 3.182 ms 3.034 ms can anyone decipher this difference between ping and traceroute for me, and what they might mean for an application that needs to talk to (and from) a host?

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  • Silverlight WCF method calls fails if WCF service is not running initially

    - by Craig
    Quite simply I have a generic Silverlight 3.0 web page that is calling a Ping method on a WCF service. I do not have the WCF service running initially when I navigate to this Silverlight page. As expected I get a communication exception when I press the Silverlight button to call the Ping method, which I catch. Now if I start the WCF service and press the Ping button I still get the communication exception. How come? The other scenario is the WCF is running when I navigate to the SL page and the Ping method call works. I turn off the WCF service, ping method fails. Turn it back on and the ping method succeeds. How come if it's not running initially the ping method fails always? I could include some sample code if you'd like but this is just a real simple Hello World example using basichttpbinding, straight out the book. Thanks, Craig

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  • unable to connect to Mailchimp services using java wrapper

    - by Nagesh
    I am using Java wrapper of mailchimp API for converting to inline CSS. I downloaded the java wrapper and tried with method inlineCss(); I register with Mailchimp and got the Api key. API Key: d5296efe2d4879e90d95b151804f8d30-us1 I am getting the below exception while calling the ping(apiKey) method. Could you please provide me the solution to resolve this problem. Exception in thread "main" com.nwire.mailchimp.MailChimpServiceException: Failed to read servers response: api.mailchimp.com at com.nwire.mailchimp.MailChimpServiceFactory$ClientFactory$1.invoke(MailChimpServiceFactory.java:190) at $Proxy0.ping(Unknown Source) at com.nwire.mailchimp.test.InlineTest.initialize(InlineTest.java:44) at com.nwire.mailchimp.test.InlineTest.run(InlineTest.java:36) at com.nwire.mailchimp.test.InlineTest.main(InlineTest.java:23) Below is the code I am using for connecting to Mailchimp. public void initialize() { mcServices = MailChimpServiceFactory.getMailChimpServices(); final String ping = mcServices.ping(apiKey); if (IMailChimpServices.PING_SUCCESS.equals(ping)) { logger.error("MailChimp connection pinged successfully"); } else { logger.error("Failed to ping MailChimp, response: " + ping); } } Regards, Nagesh.

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  • Thank you GeeksWithBlogs.com

    - by Miguel A. Castro
    It’s been a great ride guys.  I joined GeeksWithBlogs.com in order to get my first blog up and running and have been with you guys for some time.   I’m not leaving because of any problem whatsoever, I just wanted to get my blog up on my own domain with more control over the customization of many of its pages.    My new blog is now at http://www.dotnetdude.com.   For those of you out there who just want a good blog service up and running in a few minutes, I can’t recommend anyone better than GeeksWithBlogs.com.   Thanks Jeff and John !   Miguel

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  • Will Xubuntu 12.10 also have amazon ads?

    - by Miguel Guasch
    and thanks in advance for your comments: I'm currently using Ubuntu 12.04, and quite happy with it. I'm using the Unity desktop, and I've got no major complaints. My problem/question is: I've been reading on the news, forums, and different websites that the new version in 12.10, which i'll eventually have to upgrade to if I plan on using Ubuntu, has a lens/amazon function on the dash that sends queries to amazon. Now, this disturbs me a bit, since I don't want to see "shopping recommendations" everytime I look for something, be they from amazon or from "future partners". Does this new "function" only apply to the Unity desktop? If I switch to the Xfce desktop, will I be able to "save myself" from sending search data to amazon and/or shopping recommendations from them? Or will I have to entirely switch distributions, in order to evade this? Again, many thanks in advance for your comments and/or help. Regards, Miguel.

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  • How to config Amazon Route53 working without www in sub-domain

    - by romuloigor
    edit: Amazon now supports this. http://aws.typepad.com/aws/2012/12/root-domain-website-hosting-for-amazon-s3.html I have my domain config in Route53 at Amazon AWS exec ping command in my domain without www $ ping gabster.com.br ping: cannot resolve gabster.com.br: Unknown host exec ping command in my domain with www $ ping www.gabster.com.br PING s3-website-sa-east-1.amazonaws.com (177.72.245.6): 56 data bytes 64 bytes from 177.72.245.6: icmp_seq=0 ttl=244 time=25.027 ms 64 bytes from 177.72.245.6: icmp_seq=1 ttl=244 time=25.238 ms 64 bytes from 177.72.245.6: icmp_seq=2 ttl=244 time=25.024 ms Route 53 - Create Record Set - Name: [ ].gabster.com.br Set CNAME value: www.gabster.com.br DISPLAY ERROR "RRSet of type CNAME with DNS name mydomin.com is not permitted at apex in zone mydomin.com"

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  • Setting a Static IP Running FreeBSD8 in VirtualBox hosted on Windows 7

    - by gvkv
    I'm using VirtualBox on Windows 7 (host) to run a FreeBSD (guest) based web server. I`ve assigned a static ip of 192.168.80. 1 to the (virtualized) NIC which is run in bridged mode. The problem is that when I ping an external server (such as google.com) I get a No route to host error: dimetro# ping google.com PING google.com (66.249.90.104): 56 data bytes ping: sendto: No route to host ... I can ping the BSD server from both another virtualized machine and my host machine and from the server, I can ping everything on the network. The router ip is 192.168.1.1/16. ADDENDUM: I have the following lines in /etc/rc.conf on the BSD VM to configure networking: defaultrouter="192.168.1.1" ifconfig_em0="inet 192.168.80.1 netmask 255.255.0.0"

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  • OpenVPN not sending traffic to internet?

    - by coleifer
    I've set up openvpn on my pi and am running into a small issue. I can connect to the VPN server and ping it just fine, and I can also connect to other machines on my local network. However I am unable, when connected to the VPN, to reach the outside world (either by name lookup or IP). here are the details: On the server the tun0 interface: tun0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1500 inet 10.8.0.1 netmask 255.255.255.255 destination 10.8.0.2 unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 100 (UNSPEC) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 I can ping it just fine: # ping -c 3 10.8.0.1 PING 10.8.0.1 (10.8.0.1) 56(84) bytes of data. 64 bytes from 10.8.0.1: icmp_seq=1 ttl=64 time=0.159 ms 64 bytes from 10.8.0.1: icmp_seq=2 ttl=64 time=0.155 ms 64 bytes from 10.8.0.1: icmp_seq=3 ttl=64 time=0.156 ms --- 10.8.0.1 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2002ms Routing table # ip route show default via 192.168.1.1 dev eth0 metric 204 10.8.0.0/24 via 10.8.0.2 dev tun0 10.8.0.2 dev tun0 proto kernel scope link src 10.8.0.1 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.6 metric 204 I also have ip traffic forwarding: net.ipv4.ip_forward = 1 I do not have any custom iptables rules (that I'm aware of). On the client, I can connect to the VPN. Here is my tun0: tun0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1500 inet 10.8.0.6 netmask 255.255.255.255 destination 10.8.0.5 unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 100 (UNSPEC) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 21 bytes 1527 (1.4 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 And on the client I can ping it: sudo ping -c 3 10.8.0.6 PING 10.8.0.6 (10.8.0.6) 56(84) bytes of data. 64 bytes from 10.8.0.6: icmp_seq=1 ttl=64 time=0.035 ms 64 bytes from 10.8.0.6: icmp_seq=2 ttl=64 time=0.026 ms 64 bytes from 10.8.0.6: icmp_seq=3 ttl=64 time=0.032 ms --- 10.8.0.6 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 1998ms rtt min/avg/max/mdev = 0.026/0.031/0.035/0.003 ms I can ssh from the client into another server on my LAN (192.168.1.x), however I cannot reach anything outside my LAN. Here's some of the server logs at the bottom of this gist: https://gist.github.com/coleifer/6ef95c3008f130249933/edit I am frankly out of ideas! I don't think it's my client because both my laptop and my phone (which has an openvpn client) exhibit the same behavior. I had OpenVPN installed on this pi before using debian and it worked, so I don't think it's my router but of course anything is possible.

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  • Ubuntu server - Problem of routing

    - by Max
    Hi, I have setup a Ubuntu server with Ubuntu Enterprise Cloud. The server is connected to a private LAN with DHCP and Internet access (via a gateway). At first, the server was working fine. It can ping the internet. It can also ping other machine inside LAN. The problem happened after i let the machine idle for more than 1 hour. When I want to use the machine again, I can't ping the internet anymore. I can only ping the machine inside LAN. I try to ping the server from another machine and it's working. Then, i ssh into that server from another machine, and I found that I can ping the internet from that server. It seems that there are some problems in the routing table of this server. Can anyone help me on this? Thank you. Max

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  • Setting a Static IP Running FreeBSD8 in VirtualBox hosted on Windows 7

    - by gvkv
    I'm using VirtualBox on Windows 7 (host) to run a FreeBSD (guest) based web server. I`ve assigned a static ip of 192.168.80. 1 to the (virtualized) NIC which is run in bridged mode. The problem is that when I ping an external server (such as google.com) I get a No route to host error: dimetro# ping google.com PING google.com (66.249.90.104): 56 data bytes ping: sendto: No route to host ... I can ping the BSD server from both another virtualized machine and my host machine and from the server, I can ping everything on the network. The router ip is 192.168.1.1/16. ADDENDUM: I have the following lines in /etc/rc.conf on the BSD VM to configure networking: defaultrouter="192.168.1.1" ifconfig_em0="inet 192.168.80.1 netmask 255.255.0.0"

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  • understanding my site's DNS records

    - by DaveM
    firstly apologies for using the word 'pointage' this is the word my french domain registrar uses so I may have used to wrong term. OK I would like to better understand what is going on on my 'pointage' record on my domain registrars site. for my (currently empty) web site it reports the following details... Type : Host : Destination A : www.mydomain.org : 62.210.176.146 A : mail.mydomain.org : 84.246.225.176 Mx : .mydomain.org : mail.mydomain.org I think I understand the MX record, that simply relays anything onto the mail.mydomain.org location. However why are the destination for the www and mail domains different. Even more confusing (for me) is the fact that if I ping either of www.mydomain.org or mail.mydomain.org the ping returns a different IP address. This IP address is consistent with that of my server (ie 92.39.247.92). So what exactly is going on ? I'm sure I could find the information on the web,I've read a few thing on the debianhelp site regarding DNS records, and it seems to suggest that the record should be a reverse lookup, but certains isn't the reverse of my servers IP ? but I don't what I should be looking for, so links to docs and search terms for google will be happily accepteed (even though they go against the grain of SO answers to question). thanks in advance. David. ps. I should add that everything seems to work just fine, and I've just descovered this part of the management page of my registrar. Edit: Addition of DNS records and ping results. The DNS record for the site. From what I've read there should only realy be a single 'A' record, so has something gone wrong ? should I change it (remove the extras and then just point www.facilitee.org - .facilitee.org and mail.facilitee.org - .facilitee.org here is the DNS record A www.facilitee.org ? 92.39.247.92 A .facilitee.org ? 92.39.247.92 A mail.facilitee.org ? 92.39.247.92 A webmail.facilitee.org ? 92.39.247.92 MX .facilitee.org ? mail.facilitee.org ping results... ~$ ping www.facilitee.org PING www.facilitee.org (92.39.247.92) 56(84) bytes of data. 64 bytes from vps4576-cloud.dns26.com (92.39.247.92): ~$ ping mail.facilitee.org PING mail.facilitee.org (92.39.247.92) 56(84) bytes of data. 64 bytes from vps4576-cloud.dns26.com (92.39.247.92): So the DNS and the ping correspond, but the 'pointage' doesn't. ~ how can I get a report of the pointage records other than from my registrar ?

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  • links for 2010-06-09

    - by Bob Rhubart
    Enterprise Architecture: From Incite comes Insight...: Why aren't we seeing more adoption of open source in large enterprises? (tags: ping.fm entarch opensource linux) Forms Modernization, Part 1: Motivation for change iAdvise blog (tags: ping.fm oracleace apex middleware oracle) OmniGraffle for iPad Now Supports VGA Output (Enterprise Architecture at Oracle) (tags: ping.fm entarch ipad oracle) SysAdmin access in Oracle VDI - Jaap's VDI Blog Space (tags: ping.fm virtualization sunray vdi) Securing Enterprise Data in AWS Oracle PeopleSoft Enterprise Consulting, Support and Training (tags: ping.fm cloud peoplesoft entarch) Enterprise Software Development with Java: ODTUG Kaleidoscope 2010 - preparations and sessions (tags: ping.fm oracle java oracleace) @toddbiske: Enterprise Architecture Must Assist Delivery "In most IT organizations, things get delivered through projects, and enterprise architects don’t typically play the role of project architect. At best, there is an indirect association with delivery." -- Todd Biske (tags: entarch enterprisearchitecture) @pevansgreenwood: The Rules of Enterprise IT "The rules of this game need to change if enterprise IT — as we know it — is to remain relevant in the future." -- Peter Evans Greenwood (tags: entarch enterprisearchitecture) @bex: Oracle UCM 11g Now Released! "Good news!" says Oracle ACE Director Bex Huff. "The 11g version of Oracle UCM is finally available! This version is a bit of a re-write to run on top of the WebLogic application server. Oracle has been talking about this release for some time, so I'm glad to see it finally available." (tags: oracle enteprise2.0 e20 oracleace) Marc Kelderman: SOA 11g Cloning Cloning an Oracle SOA Suite 11g environment is rather simple. Marc Kelderman shows you how. (tags: soa oracle)

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  • Internet slow on one router only [the problem only in Ubuntu] [on hold]

    - by mrSuperEvening
    Internet works perfectly on every other router, but browsing sucks at home (slow browsing and slow loading times). I changed DNS servers to 8.8.0.0, still doesn't help. And funnily, download speed is extremely high on this network (meaning torrents for example), but using browsers and loading websites is extremely slow (only on this network). Do I need to change something in router settings or what can I try? By the way, I use wired connection to router. EDIT: There's no problems when using Windows. EDIT: ifconfig: eth0 Link encap:Ethernet HWaddr f2:4d:a0:c0:3f:4c inet addr:192.168.11.8 Bcast:192.168.11.255 Mask:255.255.255.0 inet6 addr: fe80::f24d:a2ff:fec6:3f4c/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:206798 errors:0 dropped:0 overruns:0 frame:0 TX packets:219570 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:76680734 (76.6 MB) TX bytes:21738160 (21.7 MB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:160 errors:0 dropped:0 overruns:0 frame:0 TX packets:160 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:11094 (11.0 KB) TX bytes:11094 (11.0 KB)` ping -c 2 4.2.2.2 PING 4.2.2.2 (4.2.2.2) 56(84) bytes of data. --- 4.2.2.2 ping statistics --- 2 packets transmitted, 0 received, 100% packet loss, time 1007ms ping -c 2 google.com PING google.com (213.159.32.147) 56(84) bytes of data. 64 bytes from lan-213-159-32-147.kns.skynet.lv (213.159.32.147): icmp_seq=1 ttl=61 time=0.936 ms 64 bytes from lan-213-159-32-147.kns.skynet.lv (213.159.32.147): icmp_seq=2 ttl=61 time=0.937 ms --- google.com ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 1001ms rtt min/avg/max/mdev = 0.936/0.936/0.937/0.030 ms

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  • Can you cross-site ping another site using C# or JS/Ajax?

    - by Josh Harris
    On our web application I am trying to ping a 3rd party site to see if it is up before redirecting our customers to it. So far I have not seen a way to do this other than from a desktop app or system console. Is this possible? I have heard that there was an image trick in original ASP. Currently we are using .NET MVC with Javascript. Thank you, Josh

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  • If I can ping my DB server, is my SQL Server connection guaranteed to work?

    - by Matt
    If I can ping my DB server, is my SQL Server connection guaranteed to work? I am using a default connection string in my code. My program runs fine locally but overseas sites are having issues and I am wondering if SQL might be using a TCP or UDP port that is still blocked. Here is the connection string "Data Source=xxxx.xxxx.com; Initial Catalog = xxxxx; User ID=xxxxx;password=xxxxx"

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  • Set up tunnel to HE.net and now only ipv6.google.com works, but other sites ping fine.

    - by AndrejaKo
    I'm setting up IPv6 using my router which is running OpenWRT, version Backfire 10.03.1-rc4. I made a tunnel using Hurricane Electric's tunnel broker and set it up on the router and I'm using RADVD to hand out IPv6 addresses. My problem is that on computers on the network, I can only access ipv6.google.com using a browser, but other sites seem to be loading forever and won't open in any browser. I can ping and traceroute to them fine, but can't open them with a browser. I can open any site normally with a browser from the router. Stopping firewall service on the router doesn't help, so it's probably not a firewall issue. All AAAA records resolve fine, so it's probably not a DNS issue. Computers on the network get their IPv6 addresses fine, so it's probably not a radvd issue. Similar setup worked fine for SixXs, but I'm having problems with my PoP there, so I decided to move to HE. Here are some traceroutes: From a client computer: Tracing route to ipv6.he.net [2001:470:0:64::2] over a maximum of 30 hops: 1 <1 ms 1 ms 1 ms 2001:470:1f0b:de5::1 2 62 ms 63 ms 62 ms andrejako-1.tunnel.tserv6.fra1.ipv6.he.net [2001:470:1f0a:de5::1] 3 60 ms 60 ms 63 ms gige-g2-4.core1.fra1.he.net [2001:470:0:69::1] 4 63 ms 68 ms 68 ms 10gigabitethernet1-4.core1.ams1.he.net [2001:470:0:47::1] 5 84 ms 74 ms 76 ms 10gigabitethernet1-4.core1.lon1.he.net [2001:470:0:3f::1] 6 146 ms 147 ms 151 ms 10gigabitethernet4-4.core1.nyc4.he.net [2001:470:0:128::1] 7 200 ms 198 ms 202 ms 10gigabitethernet5-3.core1.lax1.he.net [2001:470:0:10e::1] 8 219 ms * 210 ms 10gigabitethernet2-2.core1.fmt2.he.net [2001:470:0:18d::1] 9 221 ms 338 ms 209 ms gige-g4-18.core1.fmt1.he.net [2001:470:0:2d::1] 10 206 ms 210 ms 207 ms ipv6.he.net [2001:470:0:64::2] Trace complete. and another from a cliet computer Tracing route to whatismyipv6.com [2001:4870:a24f:2::90] over a maximum of 30 hops: 1 7 ms 1 ms 1 ms 2001:470:1f0b:de5::1 2 69 ms 70 ms 63 ms AndrejaKo-1.tunnel.tserv6.fra1.ipv6.he.net [2001:470:1f0a:de5::1] 3 57 ms 65 ms 58 ms gige-g2-4.core1.fra1.he.net [2001:470:0:69::1] 4 73 ms 74 ms 75 ms 10gigabitethernet1-4.core1.ams1.he.net [2001:470:0:47::1] 5 71 ms 74 ms 76 ms 10gigabitethernet1-4.core1.lon1.he.net [2001:470:0:3f::1] 6 141 ms 149 ms 148 ms 10gigabitethernet2-3.core1.nyc4.he.net [2001:470:0:3e::1] 7 141 ms 147 ms 143 ms 10gigabitethernet1-2.core1.nyc1.he.net [2001:470:0:37::2] 8 144 ms 145 ms 142 ms 2001:504:1::a500:4323:1 9 226 ms 225 ms 218 ms 2001:4870:a240::2 10 220 ms 224 ms 219 ms 2001:4870:a240::2 11 219 ms 218 ms 220 ms 2001:4870:a24f::2 12 221 ms 222 ms 220 ms www.whatismyipv6.com [2001:4870:a24f:2::90] Trace complete. Here's some firewall info on the router: root@OpenWrt:/# iptables -L -n Chain INPUT (policy ACCEPT) target prot opt source destination ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 syn_flood tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x17/0x02 input_rule all -- 0.0.0.0/0 0.0.0.0/0 input all -- 0.0.0.0/0 0.0.0.0/0 Chain FORWARD (policy DROP) target prot opt source destination zone_wan_MSSFIX all -- 0.0.0.0/0 0.0.0.0/0 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED forwarding_rule all -- 0.0.0.0/0 0.0.0.0/0 forward all -- 0.0.0.0/0 0.0.0.0/0 reject all -- 0.0.0.0/0 0.0.0.0/0 Chain OUTPUT (policy ACCEPT) target prot opt source destination ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 output_rule all -- 0.0.0.0/0 0.0.0.0/0 output all -- 0.0.0.0/0 0.0.0.0/0 Chain forward (1 references) target prot opt source destination zone_lan_forward all -- 0.0.0.0/0 0.0.0.0/0 zone_wan_forward all -- 0.0.0.0/0 0.0.0.0/0 zone_wan_forward all -- 0.0.0.0/0 0.0.0.0/0 Chain forwarding_lan (1 references) target prot opt source destination Chain forwarding_rule (1 references) target prot opt source destination nat_reflection_fwd all -- 0.0.0.0/0 0.0.0.0/0 Chain forwarding_wan (1 references) target prot opt source destination Chain input (1 references) target prot opt source destination zone_lan all -- 0.0.0.0/0 0.0.0.0/0 zone_wan all -- 0.0.0.0/0 0.0.0.0/0 zone_wan all -- 0.0.0.0/0 0.0.0.0/0 Chain input_lan (1 references) target prot opt source destination Chain input_rule (1 references) target prot opt source destination Chain input_wan (1 references) target prot opt source destination Chain nat_reflection_fwd (1 references) target prot opt source destination ACCEPT tcp -- 192.168.1.0/24 192.168.1.2 tcp dpt:80 Chain output (1 references) target prot opt source destination zone_lan_ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 zone_wan_ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 Chain output_rule (1 references) target prot opt source destination Chain reject (7 references) target prot opt source destination REJECT tcp -- 0.0.0.0/0 0.0.0.0/0 reject-with tcp-reset REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable Chain syn_flood (1 references) target prot opt source destination RETURN tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x17/0x02 limit: avg 25/sec burst 50 DROP all -- 0.0.0.0/0 0.0.0.0/0 Chain zone_lan (1 references) target prot opt source destination input_lan all -- 0.0.0.0/0 0.0.0.0/0 zone_lan_ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 Chain zone_lan_ACCEPT (2 references) target prot opt source destination ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 Chain zone_lan_DROP (0 references) target prot opt source destination DROP all -- 0.0.0.0/0 0.0.0.0/0 DROP all -- 0.0.0.0/0 0.0.0.0/0 Chain zone_lan_MSSFIX (0 references) target prot opt source destination TCPMSS tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x06/0x02 TCPMSS clamp to PMTU Chain zone_lan_REJECT (1 references) target prot opt source destination reject all -- 0.0.0.0/0 0.0.0.0/0 reject all -- 0.0.0.0/0 0.0.0.0/0 Chain zone_lan_forward (1 references) target prot opt source destination zone_wan_ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 forwarding_lan all -- 0.0.0.0/0 0.0.0.0/0 zone_lan_REJECT all -- 0.0.0.0/0 0.0.0.0/0 Chain zone_wan (2 references) target prot opt source destination ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:68 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 8 ACCEPT 41 -- 0.0.0.0/0 0.0.0.0/0 input_wan all -- 0.0.0.0/0 0.0.0.0/0 zone_wan_REJECT all -- 0.0.0.0/0 0.0.0.0/0 Chain zone_wan_ACCEPT (2 references) target prot opt source destination ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 Chain zone_wan_DROP (0 references) target prot opt source destination DROP all -- 0.0.0.0/0 0.0.0.0/0 DROP all -- 0.0.0.0/0 0.0.0.0/0 DROP all -- 0.0.0.0/0 0.0.0.0/0 DROP all -- 0.0.0.0/0 0.0.0.0/0 Chain zone_wan_MSSFIX (1 references) target prot opt source destination TCPMSS tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x06/0x02 TCPMSS clamp to PMTU TCPMSS tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x06/0x02 TCPMSS clamp to PMTU Chain zone_wan_REJECT (2 references) target prot opt source destination reject all -- 0.0.0.0/0 0.0.0.0/0 reject all -- 0.0.0.0/0 0.0.0.0/0 reject all -- 0.0.0.0/0 0.0.0.0/0 reject all -- 0.0.0.0/0 0.0.0.0/0 Chain zone_wan_forward (2 references) target prot opt source destination ACCEPT tcp -- 0.0.0.0/0 192.168.1.2 forwarding_wan all -- 0.0.0.0/0 0.0.0.0/0 zone_wan_REJECT all -- 0.0.0.0/0 0.0.0.0/0 Here's some routing info: root@OpenWrt:/# ip -f inet6 route 2001:470:1f0a:de5::/64 via :: dev 6in4-henet proto kernel metric 256 mtu 1280 advmss 1220 hoplimit 0 2001:470:1f0b:de5::/64 dev br-lan proto kernel metric 256 mtu 1500 advmss 1440 hoplimit 0 fe80::/64 dev eth0 proto kernel metric 256 mtu 1500 advmss 1440 hoplimit 0 fe80::/64 dev br-lan proto kernel metric 256 mtu 1500 advmss 1440 hoplimit 0 fe80::/64 dev eth0.1 proto kernel metric 256 mtu 1500 advmss 1440 hoplimit 0 fe80::/64 dev eth0.2 proto kernel metric 256 mtu 1500 advmss 1440 hoplimit 0 fe80::/64 via :: dev 6in4-henet proto kernel metric 256 mtu 1280 advmss 1220 hoplimit 0 default dev 6in4-henet metric 1024 mtu 1280 advmss 1220 hoplimit 0 I have computers running windows 7 SP1 and openSUSE 11.3 and all of them have same problem. I also made a thread about this on HE's forum, but it seems that people there are out of ideas what to do.

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