I have always wondered why such a basic feature (loading ssh keys for persistent usage) requires a clunky command to execute in the background of a cmdline. Why isn't ssh-agent a service (for example) by default? I assume there might be a security reason, but I'm curious to get other thoughts.
There are clearly benefits of using a subdomain for sending email to protection domain reputation, but is this always true? What about the extreme case, where a spam domain sends every email from a distinct subdomain?
I would like to use Postfix as an MTA to deliver emails that I create locally using a Python SMTP client. But I would like to handle the re-sending of emails manually, rather than using Postfix's automatic queues. I also want to get the status codes from the destination server back to Python through my local Postfix. Is this possible?
EDIT: See comment below.
I know postfix can limit concurrent connections to recipient "domains", but I am sending emails to websites from different domains that may use the same email service (Google, Outlook, etc.) for the MX domains. Is there a way to limit the sending rate by the MX domain as opposed to the domain of the email address?
I'm tearing my hair out trying to setup dnsmasq. I'd like to be able to resolve certain local domains (just as a test) to my own machine, and forward the rest to my regular DHCP nameserver that's coming from campus. I'm running Ubuntu 20.04.
Here's what I need from dnsmasq:
- A wildcard resolver to some local test domain.
- Full compatibility with forwarding to my existing campus nameserver. I.e. I want 'search' from /etc/resolv.conf to still work, so 'neon' resolves to 'neon.cs.princeton.edu' as usual. I have been unable to even find the IP address of my campus nameserver, let alone keep 'search' working.