negative SetEnvIf conditional

[powerflash]

I use these directives for check specific remote ip address

SetEnvIf Remote_Addr myipaddress trace_this_client

is possible use SetEnvIf in negative for invert conditional?

[wilderness]

is possible use SetEnvIf in negative for invert conditional?

SetEnvIf Remote_Addr myipaddress trace_this_client/

I don't quite understand your example (maybe I'm just having a dense moment), however not in the manner of your example.

The answer is yes!

SetEnvIf Remote_Addr ^123\.456\. !keep_out

The leading exclamation point at the front of your own same phrase does what you wish.

[lucy24]

is possible use SetEnvIf in negative for invert conditional?

Are you asking about the third element, as in

SetEnvIf variable-type desired-value
SetEnvIf variable-type !unwanted-value

? No. The docs [httpd.apache.org] don't say so explicitly, so I experimented. A ! in this position is interpreted as a literal exclamation mark, which is rare but not impossible in a request.

The ! can be used to remove a previously set environmental variable, as in

SetEnvIf Remote_Addr ^128\.30\.52 !keep_out

(a line I personally use. It means "let the link checker run wild even though they use a stupid UA") but I don't think that's what you were asking.

[powerflash]

I use in this context

ExtFilterDefine fixtext1 mode=output intype=text/html cmd="/bin/sed s/findstring/replacestring/g" EnableEnv=trace_this_client

SetEnvIf Remote_Addr myipaddress trace_this_client
SetOutputFilter fixtext1

I want that replace sed cmd run for all ip address unless myipaddress

[lucy24]

Do it the other way around. First set the environmental variable globally, and then say

SetEnvIf Remote_Addr myipaddress !trace_this_client

which wipes the variable.

But can't you use a ! negative in the EnableEnv statement instead?

:: detour to docs, because I'm not familiar with the syntax of this command ::

Hey, I was close. You need to switch it around and use disableenv instead of enableenv. The SetEnvIf part then becomes something like

SetEnvIf Remote_Addr myipaddress ignore_this_client

[powerflash]

I tried this but not work

ExtFilterDefine fixtext1 mode=output intype=text/html cmd="/bin/sed s/findstring/replacestring/g" EnableEnv=trace_this_client

<Location />
SetEnvIf Remote_Addr "^" loopback_ip=1
SetEnvIf Remote_Addr myipaddress loopback_ip=2
SetEnvIf loopback_ip 1 trace_this_client
SetOutputFilter fixtext1
</Location>

[powerflash]

I solved with different solution based on host name

ExtFilterDefine fixtext1 mode=output intype=text/html cmd="/bin/sed s/findstring/replacestring/g" EnableEnv=trace_this_client

SetEnvIf Host parking\.hostname\.com trace_this_client
SetOutputFilter fixtext1

with this solution I use main hostname and others use a parking domain

[lucy24]

I solved with different solution

Well, that's definitely cleaner than the previous version. But why do you need to use EnableEnv? DisableEnv would seem to be what the situation warrants ("do this for everyone except such-and-such").