Linux重定向端口

Redirect port on Linux by socat

2018_01_27

Recently when I run gradlew run, I found the files gradlew wanted
to fetch on a server were blocked by Verification Code, I could
enter the verification code manually from Chrome and download the
files but gradlew can’t.

So, I need to set up a local server to redirect the server to my
localhost.

Since I have a Apache server listening port 1994, I need to
redirect port 80 to port 1994 and download the needed file
to /srv/www/htdocs/ and mkdir the corresponding subdirs.

After that, sudo vi /etc/hosts and add

127.0.0.1 www.loc.gov

Then, use socat

sudo socat TCP-LISTEN:80,fork TCP:127.0.0.1:1994

Finally, rerun gradlew run and everything went smoothly.