Ntp server bad file descriptor




















Hi folks, I have developed a Linux server for my customer. After migrating the server to my customer site, I was trying to sync its time to the NTP time servers at my customer site. Below is the ntp. NTP Clients not sync. All here, thank you for listening. Then I start the ntpd daemon. I've looked up everywhere but found no information Hi Expert, One on my server keep logging this error below, how to fix this issue? Thank you. NTP time sync in Solaris Ok, I have 4 production systems.

There is one NTP server for all four systems. In each system there is one Solaris 10 box that points to that NTP server. All of the other machines in the system point to the Solaris 10 machine to get their time sync.

All four Solaris 10 machines have essentially Hello, colleges! I need to synchronize time on several thousands device UTM-1 Edge Appliances - All inclusive, all secure, all branch offices. But in my country summer time are used. My Data centre is only using 5. Should i avoid running ntp or should it be ok? It has numerous known security issues and bugs. Patches specific to ntp since 5. I think i will wait for the next update. Are things back to normal are the holes fixed 5.

If you mean wait for 5. Upstream has yet to release RHEL5u6. Various errors are commonly faced by programmers, which include indentation, syntax, etc. Rectifying these errors is no big deal when you review your code thoroughly. Have a complete understanding of the concepts and know enough about the right syntax to be used in the code. They are generally non-negative values.

They assist in performing various functions related to files. Descriptors, in general, are a unique way that Python follows to manage attributes. Have you encountered the following error message when you run your Python code when defining file directories or similar ones? In the above code, the del file will delete the reference of the file object specified. Now, as per the code written, the close function was not called. This forces the destructor to close the file. Another main area in which this error is seen is in the Python socket — Socket error Bad file descriptor.

For some reason unknown to me the server socket vanishes and I get a Bad file descriptor error in the select call that waits for an incomming connection. This problem always occurs when I close an unrelated socket connection in a different thread.

This happens on an embedded Linux with 2. Does anyone know why this would happen? Is it normal that a server socket can simply vanish resulting in Bad file descriptor? Sockets file descriptors usually suffer from the same management issues as raw pointers in C. Whenever you close a socket, do not forget to assign -1 to the variable that keeps the descriptor value:. If you forget to do this yo can later close socket twice, as you would free memory twice if it was a pointer.

The other issue might be related to the fact that people usually forget: file descriptors in UNIX environment start from 0. If somewhere in the code you have. And later, some piece of code, responsible for freeing FooData structure may blindly close this descriptor, that happens to be you server's listening socket 0.

You don't distinguish the two error cases in your code, both can fail select or accept. My guess is that you just have a time out and that select returns 0. In Linux once you create a connection and it get closed then you have to wait for some time before making new connection. As in Linux, socket doesn't release the port no.



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