by admin | Jul 26, 2020 | General, Linux, Mail service
Most of the providers these days are blocking the default port 25 and users find it difficult to get around it. If you are looking at sending very less mails and do not want to go for paid stuffs, this is for you. We will see how we can intergrate Postfix with...
by admin | Jun 1, 2020 | Mail service, Ubuntu, Virtualmin
Issue was noted with a Virtualmin server running on Ubuntu 18.04. Already setup the DKIM settings from the control panel, the DNS records have been propagated too, but the outgoing mails are not getting signed with DKIM key. Seems to be an issue with the opendkim...
by admin | May 17, 2020 | Servers, Ubuntu
We will look at some general server steps to harden your Ubuntu 20.04. 1. Set Auto-update On Ubuntu 20.04 # sudo apt install unattended-upgrades Now open the below file and edit # vim /etc/apt/apt.conf.d/50unattended-upgrades Uncomment this line :...
by admin | May 10, 2020 | aws
You may face this error when you use S3 to host the images for your website and when clicking on the images from website, results in : <Error> <Code>AccessDenied</Code> <Message>Access Denied</Message>...
by admin | May 8, 2020 | SSL, Ubuntu
With Ubuntu 20 released and available, many would be going to host the websites on it. How do you secure Apache with a free SSL ? Lets take a look. First make sure your domain has its A recorded pointed to the Ubuntu 20 server. Once that is made sure, lets install the...
by admin | Apr 28, 2020 | Mail service, Ubuntu, Virtualmin
Error – postfix/smtpd[xxxx]: warning: SASL authentication failure: cannot connect to saslauthd server: Permission denied Solution : If Postfix is looking at /var/run/saslauthd, to see the files in /var/spool/postfix/var/run/saslauthd , make a symlink : # ln -s...
by admin | Apr 25, 2020 | Firewall, Servers
Some useful CSF / LFD commands to do via SSH. CommandsPurposeExamplecsf -eEnable CSFcsf -xDisable CSFcsf -fFlush/Stop firewall rulescsf -d IP CommentBlock the IP csf -d 1.2.3.4 badguycsf -d IP/netmaskBlock the IP rangecsf -d 145.123.44.0/24csf -dr IPUnblock an IPcsf...
by admin | Apr 25, 2020 | Ubuntu, Virtualmin
As per https://sendy.co/, it is a self hosted email newsletter application that lets you send trackable emails via Amazon Simple Email Service (SES). This makes it possible for you to send authenticated bulk emails at an insanely low price without...
by admin | Apr 25, 2020 | OpenSource, SSL
We will secure the WordPress site with the free SSL – Letsencrpyt. Note : Applicable only for domains having Apache as Web-server Make sure you have git installed # sudo apt-get install git # cd /tmp # git clone https://github.com/certbot/certbot # cd certbot...
by admin | Apr 20, 2020 | cPanel/WHM, Linux, Servers
At times, the hosting guys wont enable the AutoSSL option or you wont find the letsencrpyt plugin in your cPanel interface to install Free SSLs. So how will you go about ? You can go to https://www.sslforfree.com/ and enter your domain name. After you give the domain...
