Goal (for if you have a better solution than my idea): Securely host a purely golang backend webapp on a domain that people don’t have to type “:port number” to access.
My current situation: I am learning golang, and want to create a golang http-server.
(Yes, I know about nginx & reverse-proxy)
Right now, my golang’s web servers are serving on nonprivileged ports, e.g. 8080, instead of port: 80. (I’d like not to run the golang http server as root to run on a privileged port, but that’s just me)
I was wanting my golang http server to serve to port 8080 , and have the IPTables monitor port 80 and redirect port 80 requests to my golang server @ 8080 via SNAT.
Hopefully I’m making myself clear.
I’ve read some documentation on it, but I’m better at learning by example.
Also, with everything on one droplet, I don’t need the entire address SNAT’d, just the ports.
Relevant environment info: Ubuntu 14.04 x64 golang 1.2.2
putty as my ssh client
limited ubuntu xp
This textbox defaults to using Markdown to format your answer.
You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!
These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.
Become a contributor for community
Get paid to write technical tutorials and select a tech-focused charity to receive a matching donation.
DigitalOcean Documentation
Full documentation for every DigitalOcean product.
Resources for startups and SMBs
The Wave has everything you need to know about building a business, from raising funding to marketing your product.
The developer cloud
Scale up as you grow — whether you're running one virtual machine or ten thousand.
Get started for free
Sign up and get $200 in credit for your first 60 days with DigitalOcean.*
*This promotional offer applies to new accounts only.
setcap 'cap_net_bind_service=+ep' /path/to/binarysudoas necessarysetcap[
setcapdocumentation] (http://man7.org/linux/man-pages/man8/setcap.8.html)cap_net_bind_servicedocumentationStill haven’t received a more elegant solution.
I have SSL needs now too, so add a line into console: sudo iptables -t nat -A PREROUTING -p tcp --dport 443 -j REDIRECT --to-port 10443
Here’s a temporary solution I worked out:
Enter the following into console: sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 8080
Source was: http://serverfault.com/questions/112795/how-can-i-run-a-server-on-linux-on-port-80-as-a-normal-user