Icinga Error: icinga2: Can't send external Icinga command to the local
icinga2: Can't send external Icinga command to the local This error happens because of the absence of the feature "command"
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Linux
Kubernates pod status: ImagePullBackOff
The status ImagePullBackOff means that a Pod couldn’t start because Kubernetes could not pull a container image. The ‘BackOff’ part
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How to invalidate Cloudfront cache using aws cli
Aws cli provides the option to invalidate Cloudfront cache programmatically. Where ID need to be replaced with the id of
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Jenkins css and js not loading via Nginx reverse proxy
Here Jenkins serving the application through the Nginx reverse proxy server with the following configuration. In this case Jenkins loading
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Django Error: django.core.exceptions.ImproperlyConfigured: Error loading either pysqlite2 or sqlite3 modules (tried in that order): No module named _sqlite3
django.core.exceptions.ImproperlyConfigured: Error loading either pysqlite2 or sqlite3 modules (tried in that order): No module named _sqlite3 This error normally happens
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How to upload objects to S3 bucket and grant public access using aws cli
We can upload the objects to S3 bucket using aws cli. But the newly uploaded object do not have the
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Virsh error: failed to connect to the hypervisor
error: failed to connect to the hypervisor If this error happens even after starting the libvirtd service, it should be
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Yum Error: Peer cert cannot be verified or peer cert invalid
Peer cert cannot be verified or peer cert invalid First of all we need to ensure that the date and
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How to find out the repository from which the package comes using apt
Apt utility provides and option to check the repository from which the package comes. Where PACKAGE need to be replaced
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How to open a port in UFW
UncomplicatedFirewall (UFW) is a command-line iptables manager which comes with Ubuntu/Mint operating systems by default. This article explains the details
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How to disable Tomcat server version header
By default, Tomcat server version is exposed to public and may leads to security issues. This article explains the steps
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