nginx how to do if not regex

Question

I have as below in nginx but it doesn't do what I intend:

location / {
  if ($host !~* blah.blah.com) {
    return 307 https://$host/$request?uri;
  }
}

I basically need to do a 307 when $host doesn't match blah.blah.com in regex or it could really just be a plain string. I tried putting them in double quotes or /.../ but nothing seems to work. How do I specify this in nginx's location block?

Richard Smith · Accepted Answer · 2019-02-12 09:23:50Z

11

As you say, you do not need to use a regular expression to match a single string. You can use the = and != operators with the if directive. See this document for details.

For example:

if ($host != foo.example.com) { ... }

The correct regular expression for the above requires two anchors (^ and $) and an escape for the . which would otherwise represent any character.

For example:

if ($host !~* ^foo\.example\.com$) { ... }

The use of quotes is optional, unless the string contains reserved characters (such as { and }).

See this link for more on regular expressions.

answered Feb 12, 2019 at 9:23

Richard Smith

50.3k7 gold badges97 silver badges96 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

nginx how to do if not regex

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related