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...
Linux – Enable PHP Short Tags
KB ID 0000886 Problem I have a particular web page that uses PHP short tags. Post migration from my old hosting company to a dedicated VPS, this stopped working. As I know little about Linux, and even less about PHP, I asked the question at Experts Exchange about why It was no longer working. I took no time at all, for someone who knew what they were doing to say, “Your code uses ‘Short tags’, but you do not have...
Backing up a Remote Linux Machine With Windows (Using Rsync and Cygwin)
KB ID 0000892 Problem The goal here was for me to get a backup of my VPS server (Running CentOS 6). My background is primarily Windows based, so I wanted a solution where I can just run the backup from a Windows machine, (i.e. my my laptop) and let it connect, login and perform the backup. What is Rsync? If you are familiar with Robocopy it’s similar, it can perform a backup/sync of data and encrypt that data while it’s...
Postfix – Change The ‘Welcome Banner’
KB ID 0000907 Problem After my recent DNS troubles, I was checking my mail server’s (MX) records, and got a warning about not having any reverse lookup records (PTR) configured properly. I telnetted to the mail server on port 25, and saw it was responding with the servers host-name. I know my records are correct for the FQDN of the server, I just needed to change its welcome banner. Solution Change the Postfix Welcome Banner by...