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bio website plokta.com
location Canterbury, United Kingdom
age 51
visits member for 5 years, 3 months
seen 4 hours ago

5h
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
Feb
2
answered Network bridging - what's the point?
Dec
16
comment In AWS, does an hour of usage get charged just for an instance being in the “running” state?
Note that reservations have now changed. Under the new structure, all reservations are Heavy and commit you to paying for the full reservation period whether the instance is running or not, and you can choose to pay all up-front, all monthly, or a mixture. The more you pay up-front, the cheaper it is.
Dec
15
awarded  Enlightened