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Apr
18
comment SSL certificate for CNAME
It doesn't matter if it's a CNAME or an A record -- the name just has to match what the browser is using to access the site. Whether you can add it to any server depends on the licence conditions of your certificate provider -- there's no technical problem with doing so.
Apr
18
answered SSL certificate for CNAME
Apr
2
answered How to speed up (very remote) overloaded server connection
Mar
29
answered Do I need “A record” for AWS ELB while I set up CNAME?
Mar
26
answered 1and1 domain redirected to Amazon ELB: 1and1 free email accs management
Mar
20
answered SOA: Is using PHP FPM to serve webservice traffic without NGINX a good idea?
Mar
14
answered Upgrade from t1.microto to 2.micro - AWS Free Usage Tier
Mar
9
awarded  Enlightened
Mar
9
awarded  Nice Answer
Mar
4
awarded  Enlightened
Mar
4
comment What does MX in SPF mean?
@Paul It doesn't violate RFC 7208, because it's a SHOULD NOT, not a MUST NOT.
Mar
4
awarded  Nice Answer
Mar
3
revised What does MX in SPF mean?
edited body
Mar
3
comment What does MX in SPF mean?
If everything is on the same IP address, you don't need all of the a, mx and ptr entries, because they will all resolve to the same IP address (assuming your reverse DNS for mydomain.com is set up correctly). Any one of the three will do. But the extra ones do no harm, and could be useful later if you acquire more IP addresses. Note also that the SPF record has nothing to do with what email is allowed to go to *.mydomain.com; that would be down to the configuration of your email server software.
Mar
3
answered What does MX in SPF mean?
Feb
28
answered SSH tunneling between two server
Feb
13
answered What is the best way to isolate permissions to a role, where traditionally role-based security is not implemented?
Feb
9
comment Multiple Ec2 instances on Amazon free aws account
Yes, that's correct. If you keep your instances running all the time then they use between 672 and 745 hours per month. It doesn't matter if they're at 0% CPU usage or 100% CPU usage, just whether they're in the "Running" state or not.
Feb
9
comment Multiple Ec2 instances on Amazon free aws account
You're charged an hour for each hour that the instance is running at all, even if only for a few seconds. So if you start an instance at 08:59:30 and stop it again a minute later at 09:00:30, you'll be charged for two hours -- 08:00-09:00 and 09:00-10:00 -- since it was running in both of those hours.
Feb
9
answered Multiple Ec2 instances on Amazon free aws account