Summary This post is about a small script that can update the /etc/hosts.allow with single IPv4 for use with Dynamic DNS. Please check the ‘ Warning ‘ section before using the script. If you’ve Server or VPS with public IP and want to limit SSH access (allow or deny) to specific IP or IP range […]
This post is general information for next post.In order to make email transaction more secure, below subject can be consider, as part of securing email transaction. SPF DMARC DKIM By transaction, I don’t mean the transfer of email itself but the fact that receiver can be sure they get the right email and the sender […]
I was using bind installed as DNS server in home lab and as I was doing multiple modification, I wanted to if I made any mistake in my configuration, so I made below little script which is supper easy to read and modify; it’ll just show where (which file) issue exist instead of checking manually […]
Well, this post going to have some technical information but it’s more like a document on “what’s happened and what should do”. Our company has multiple “data center design and support” project and three days ago there was disaster in one of them. Customer site consist of: One “HP EVA 8400 – 2C4D” as storage […]
