SPF, DKIM, DMARC – Sample and perfect record values Rumi, January 27, 2019 Sharing some sample record value of the post subject for future reference: SPF: domain.gov.bd. IN TXT "v=spf1 a mx ip4:1.2.3.4 ?all" DKIM: MDaemon._domainkey.domain.gov.bd. IN TXT "v=DKIM1; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDIaJcNDjvJ6LJ/zyZCIOuaQiLMSC+FBfky8JMFE7LUGlP4LXwmpaKO3Z67x+PVXgYbbFU9nzLaFOfIXTbsCh6LYLBgQF+PNghbTAchQ59IEMrMRsTPCCg95+gKYRupN0B96Uz7rrXifZL8T+yl9MkpIlAsXXs7e8Vhzwa94NdVjQIDAQAB" DMARC: _dmarc.domain.gov.bd. 3600 IN TXT "v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:postmaster@domain.gov.bd; ruf=mailto:postmaster@domain.gov.bd; rf=afrf; pct=100; ri=86400" DMARC Generator: https://www.unlocktheinbox.com/dmarcwizard/ Related Administrations Configurations (Linux) DKIMDMARCSPF
DNAT using Iptables January 12, 2009 Before I start I DNAT, I’d better say what it does- The DNAT target is used to do Destination Network Address Translation, which means that it is used to rewrite the Destination IP address of a packet. If a packet is matched, and this is the target of the rule, the packet, and all… Read More
Apache Virtual Hosts on CentOS August 24, 2019 Step One— Create a New Directory The first step in creating a virtual host is to a create a directory where we will keep the new website’s information. This location will be your Document Root in the Apache virtual configuration file later on. By adding a -p to the line… Read More
Installing a Comodo SSL on Zimbra using CLI April 14, 2019April 14, 2019 1. Get the bundle from Comodo in crt format, or sometimes like a zip file. 2. Place the bundle on your Zimbra mailbox server. You should receive, or download, the next files: AddTrustExternalCARoot.crt COMODORSAAddTrustCA.crt COMODORSADomainValidationSecureServerCA.crt my_domain_com.crt or since comodo is acquired by Sectigo, the updated zip might appear as below:… Read More