I kept getting emails from noreply-dmarc-support@mydomain.com every day. After finishing a cool bucket hat design I wondered What is the rua tag in my DMARC record? Then, I did a little investigation and I remembered I set this myself when I was setting up my DMARC records in DNS. The rua tag in a DMARC …
Category Archives: Security
Enable Password Authentication on your droplet Digital Ocean
This one is quite simple. You will need to modify the ssh config file which is located at /etc/ssh/sshd_config. Open the /etc/ssh/sshd_config file with your favorite editor. Find or add the line PasswordAuthentication Enter the value ‘yes’ next to PasswordAuthentication It should look like: PasswordAuthentication yes Save and exit the file. The restart the ssh …
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How to Recover from Lost SSH Keys Digital Ocean
Hola! This happen on a couple of occasions to me. First, you will need to force your droplet to generate a new root password. Select your droplet from the Droplets menu. You will be presented with the option to reset root password. Click on the ‘Reset Root Password’ button and a new root password will …
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Generate the DKIM domain key Google GSuite
Help prevent email spoofing for outgoing messages. DKIM adds an encrypted signature to the header of all outgoing messages. Email servers that get these messages use DKIM to decrypt the message header, and verify the message was not changed after it was sent. Use the Google G Suite support link below to learn more: https://support.google.com/a/answer/174126?hl=en&ref_topic=2752442
Authorize email senders with SPF GSuite
Set up SPF to prevent spammers from sending unauthorized emails from your domain. This type of spamming is called spoofing. Sender Policy Framework (SPF) is an email security method to prevent spoofing from your domain. Spoofing is a common unauthorized use of email, so some email servers require SPF. If you don’t set up SPF for your domain, messages could bounce …
Manage suspicious emails with DMARC G Suite
Set up Domain-based Message Authentication, Reporting, and Conformance (DMARC) by adding policies to your domain’s DNS records. Policies define how your domain handles suspicious emails. Policies are defined in the form of a TXT record. There are three possible DMARC policies for how your domain responds to suspicious emails: Take no action on the message and log …
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