Linux (CentOS 7) Generating CSR (Certificate Signing Requests)
KB ID 0001206 Problem If you want to use digital certificates on your CentOS server, then you will need to generate a CSR. It does not matter if you want to purchase a publicly signed certificate, or even if you are going to sign your own. Below is how to generate a CSR for a single web host. Note: Most cert vendors now require a minimum key length of 2048 so thats what I’m going to use. And I’m assuming you have openSSL...
Webmin – Read User Mail Error ‘The mail server in the module configuration was not found on your system’
KB ID 0000885 Problem While setting up and configuring a new Postfix mail server, I attempted to use the Webmin ‘Read User Mail’ module, and got this error. Module Config Read User Mail The mail server set in the module configuration was not found on your system, You will need to adjust the configuration to use the correct server. Solution At first I thought I needed to enter a servername into the config. However it seems...
RSS Error – Your feed appears to be encoded as “UTF8”, but your server is reporting “US-ASCII”
KB ID 0000889 Problem I don’t validate and check the sites RSS feed as often as I should, but post server migration I got this error; This feed is valid, but interoperability with the widest range of feed readers could be improved by implementing the following recommendations. Your feed appears to be encoded as “UTF8”, but your sever is reporting “US-ASCII” Solution As you can see by the section I’ve...
SquirrelMail – Error connecting to IMAP server 13 : Permission Denied
KB ID 0000880 Problem After installing SquirrelMail (with Postfix and Dovecot). When I attempted to connect via a browser, this is what happened. Solution Nice easy fix, 1. Connect via SSH (or open a temrinal window) > Logon as, or su to root. 2. Execute the following command; setsebool -P http_can_network_connect=1 Related Articles, References, Credits, or External Links...
Configure Postfix for SASL Authentication from Dovecot
KB ID 0000883 Problem I built a Postfix mail server with Dovecat on CentOS 6.4 installed last week. To read my emails I installed SquirrelMail on the same server, and surprisingly it all went well. However If I attempted to send mail from Microsoft Outlook on my laptop, or from my iPhone this happened; The following recipient(s) cannot be reached: ‘name@domain-name.com’ on 22/11/2013 22:21 Server error: ‘554...