Author: Josh

The following command will list the current firewall rules: To add a new rule, issue the following command: Next, reload firewalld: List the rules again to confirm: RE: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/security_guide/sec-viewing_current_status_and_settings_of_firewalld

I was building an AWS Code Pipeline recently with terraform to deploy a new rails application on an ECS cluster and encountered the following error: The problem in the buildspec.yml was the following line: All of these build arguments were taken from System Manager’s Parameter store, so I know they were there. The problem was…

I was recently working on a problem with Tableau Server where restore operations were failing due to a ServiceOperationTimeoutException. The restore was failing to a new server, that was maintained as a hot stand-by, or passive node. Upon further examination, when trying to stop the service, via the browser control or from the command line…

Even though a user is in the Administrators group, when opening a powershell console, or running a scheduled task, even with “highest privileges”, the powershell script does not run with administrator privileges. This usually results in the following error: One way to solve this problem is to refactor the powershell script to check for administrator…

I finally migrated my web and email hosting from Rackspace to AWS. I have been with Rackspace since the Slicehost days, back in September of 2009. I’ve gone from having multiple clients hosting large, multi-terabyte, applications with 60+ servers on Rackspace with dedicated technical account managers to only managing a few servers (mine and clients)…

A not so common task for most is to migrate a domain from one registrar to another. One of the most important things that you can do to ensure the domain and applications remain available is to migrate all DNS records first and verify that it’s working on the new DNS provider, and only then,…

Windows, by default, does not allow the use of a hosts file entry to alias a CIFS share to localhost. The typical error when attempting this would be “Incorrect username or password.” when navigating to the share. To fix this, add a registry entry like the following: HKEY_LOCAL_MACHINE / SYSTEM / CurrentControlSet / Control /…

On a recent new server deployment, I ran across the error that puppet could not find the fqdn fact: Warning: Could not retrieve fact fqdn Warning: Host is missing hostname and/or domain: $short_hostname This was on an ubuntu 14.04 host running puppet 3.4.3 (ancient). The fix was to ensure that the FQDN was in the…

I saw this humorous attempt in the apache logs this morning: ==> /var/log/httpd/access_log