13,334 reputation
1825
bio website systemajik.com
location Gatineau, Canada
age 59
visits member for 4 years, 4 months
seen 20 hours ago
I have over 30 years experience in all phases of software development and delivery. I have administered a variety of midrange servers, and worked with systems from PCs to Mainframes.

May
4
comment Where to find the default status codes file for Apache in Ubuntu 12.04
@moderns I've added some examples and instructions. Good luck. curl will retrieve the custom error pages.
May
4
revised Where to find the default status codes file for Apache in Ubuntu 12.04
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May
1
awarded  dns
Apr
30
answered How do I identify who initiated mail delivery using my postfix?
Apr
30
answered What could cause DNS to un-propagate?
Apr
29
answered If I connect an interface which is not set up in operation system to a switch, should the link LED light up?
Apr
29
comment Where to find the default status codes file for Apache in Ubuntu 12.04
@moderns I've updated with more information. Work step by step, get the pages working as pages, then move on to getting them displayed. Read the comments in the the localized-error-pages configuration file.
Apr
29
revised Where to find the default status codes file for Apache in Ubuntu 12.04
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Apr
29
revised Where to find the default status codes file for Apache in Ubuntu 12.04
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Apr
29
answered Where to find the default status codes file for Apache in Ubuntu 12.04
Apr
28
comment Set up Exim to authenticate users and then relay SMTP mail via smarthost using different auth
@ChristianSieber Setting the server to run in queue-only mode will allow you to separate receiving messages from sending messages. There are tools like swaks that will allow you to setup repeatable tests. The reason messages were rejected should be logged in the exim rejectlog file.
Apr
28
answered What domain name should appear in a DKIM signature?
Apr
26
comment How to configure email server to send lots of transactional emails
@DominicP If you don't use a sub-domain, you risk tying your email server to your web-server's IP address. For a small site this may not be an issue, but as you grow it becomes a problem. Also, spammers frequently use the domain they are pretending to send from as hostname in the HELO message. This is one of the factors that can be weighted in a Spam score.
Apr
26
revised How to configure email server to send lots of transactional emails
Add details on service related sub-domains.
Apr
25
answered Set up Exim to authenticate users and then relay SMTP mail via smarthost using different auth
Apr
25
answered How to autoban IPs that request URLs with a .php extension?
Apr
25
comment How can I secure postfix so my ISP won't block it?
@LeonardChallis CentOS can, but because there are so many Spambots, most servers are tightening up their configurations. Just use your provider's relay and you should be good to go. It is best to use a proper domain name in configuring your server, but the relay should accept an illegitimate one.
Apr
24
answered How can I secure postfix so my ISP won't block it?
Apr
22
comment How to block CloudFront or other CDN to access my website
@Yoga The CDN should use their own header in addition to the X-Forwarded-For header. Base the header off their header, not the X-Forwarded-For header.
Apr
22
revised How to block CloudFront or other CDN to access my website
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