Aug 15 2012

How To Fix WordPress: “Briefly unavailable for scheduled maintenance. Check back in a minute.”

After some upgrade work on WordPress sites, sometimes the following message appears:
“Briefly unavailable for scheduled maintenance. Check back in a minute.”
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Mar 5 2012

Juniper SRX: Copy a file from one node to another one in a JSRP Chassis Cluster.

When Chassis Cluster is enabled, it is possible to transfer a file from one node to the other.

An example scenario would be if it’s required to move a JunOS image from one node to the other to upgrade both nodes.
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Jan 29 2012

Upgrade JunOS on SRX Chassis Clusters.

SRX devices in a Chassis Cluster have a requirement to not have different version of JunIS on each node of the cluster.

Because of this, it is very important to ensure that both devices in the cluster come online at the same time.
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Nov 17 2011

Ubuntu: Disable Automatic Updates via Console

Automatic Updates are done by a scheduled job (via /etc/cron.daily/apt) to automatically update the package list, upgrade packages, etc. and notifications to the user about available updates.

Some ‘sensitive’ machines need to be updated manually, to have full control of the packages that will be affected during the process.
Disable the Automatic Update configured in Ubuntu is immediate.
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May 10 2011

Ubuntu Release Upgrades

Now it’s possible to directly upgrade to Ubuntu newest releases easily.

We have only to be sure that we applied all updates to the current version of Ubuntu before the upgrade.

Before upgrading, it is recommended to read the release notes for Ubuntu versions.
It’s strongly recommended to see the upgrade notes for more information on how to upgrade.
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