rndc | an overlooked yarn against modern technologies | Runtime Evironment library
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an overlooked yarn against modern technologies.
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QUESTION
I have written a playbook which run handlers if the task was successful.Now I want to use some type conditions that if the above task fail then run different handler. Just like simple IF else statement works.
Current PLAYBOOK
...ANSWER
Answered 2020-Aug-17 at 11:35Q: "1) Run handler if the task was successful. 2) If the task fails then run another handler."
A: The simple way is to notify a handler when a task is changed. When a task fails the status is failed not changed and no handler is notified.
In this particular case, you don't care whether the command succeeded or failed. The handler shall always be notified. This can be achieved by an explicit combination of ignore_errors, failed_when, and changed_when
.
Notify both handlers service success
and service fail
. The conditions in the handlers will decide which handler will run. For example the playbook
QUESTION
In my CSV I have inconsistent data so I have to log the error while iterating record and want to create a list of POJO of valid CSV records. I am using OpenCsv to process the CSV file. I have added try-catch block to log the error if there is any but at while(iterator.hasNext()) there is the exception/error as next record has some incorrect formatted data.
So how to log the error and continue to process the next record?
...ANSWER
Answered 2019-Nov-11 at 19:46Looks to me that the error is thrown by CsvToBean beans = ...
Quick read on this, I think it might be caused by some errors on your header, in CSV file.
QUESTION
I am attempting to run a UDP server on my GoDaddy VPS (running CENTOS 6.8 x86_64 virtuozzo) and communicate with said UDP port from my local machine (Macbook Air running OS X) via NodeJS. When I run the server on my local machine and connect with my NodeJS app everything works fine. However, after I upload the server to my VPS and compile using g++ -O2 main.cpp
it appears as though it's running fine, but it doesn't receive any messages, nor echo any data back to the NodeJS sender as it does on my local machine. I have tried to alter the port on the server multiple times. TCP servers seem to run fine on my VPS.
Here is my server code:
...ANSWER
Answered 2017-Jan-08 at 22:23The server nor the VPS were the issue. The issue was related to attempting to bind the UDP socket in my NodeJS server to a specific port on my local machine before sending the message. I'm assuming OS X would prefer to pick the port through which incoming UDP messages will be received from a remote host. I made one other slight change which I don't believe had any effect, but is at least worth noting - I changed server_socket.send(message,0,message.length,'15000','MY_VPS_IP_HERE');
to server_socket.send(message,0,message.length,15000,'MY_VPS_IP_HERE');
(Removed the quotes around '15000')
Here is my full modified NodeJS UDP client code:
QUESTION
I am trying to delete an existing zone record from bind's named.conf file (on a CentOS 7 release).
The zone record looks like that:
...ANSWER
Answered 2018-Apr-25 at 16:46Your idea is right, but for the variable domain
to be expanded, it needs to be present inside double-quotes. The shell expands the variables before passing the arguments to sed
, without the right quoting, the pattern $domain
is interpreted as a literal string. You could nest the quotes as follows
QUESTION
I have an ubuntu host machine running a CentOS guest that is hosting a webserver.
The Ubuntu host/local machine is 172.29.15.1 (static) - hostname is sysengtest01
The CentOS guest is 172.29.15.7 (static) - hostname I would like to use is ixchariot-server to resolve this address (e.g. http://ixchariot-server/)
...ANSWER
Answered 2018-Apr-09 at 17:56Your SOA record in the zone file should refer to the domain example.org
, thus:
QUESTION
named.conf
...ANSWER
Answered 2017-Jun-27 at 04:55Assuming node.js environment
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