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AH00898 Error reading from remote server returned by

Hello everyone,
I am having trouble with some HTTPS services deployed via WAF.

Previously those services were deployed using DNAT.

When accessing the URL I get and Proxy error

This is what the log shows:
2013:09:23-13:41:18  reverseproxy: [Mon Sep 23 13:41:18.313296 2013] [proxy_http:error] [pid 5211:tid 4010797936] (20014)Internal error: [client :58915] AH01102: error reading status line from remote server :443
2013:09:23-13:41:18  reverseproxy: srcip="" localip="" size="0" user="-" host="" method="GET" statuscode="200" reason="-" extra="-" time="14736" url="/mifs/c/apix/v1/client//appstore" server="" referer="-" cookie="JSESSIONID=" set-cookie="-"
2013:09:23-13:41:18  reverseproxy: [Mon Sep 23 13:41:18.363377 2013] [proxy_http:error] [pid 5211:tid 3985619824] (20014)Internal error: [client :58917] AH01102: error reading status line from remote server :443
2013:09:23-13:41:18  reverseproxy: [Mon Sep 23 13:41:18.363398 2013] [proxy:error] [pid 5211:tid 3985619824] [client :58917] AH00898: Error reading from remote server returned by /mifs/c/apix/v1/client//appstore
2013:09:23-13:41:18  reverseproxy: srcip="" localip="" size="461" user="-" host="" method="GET" statuscode="502" reason="-" extra="-" time="13823" url="/mifs/c/apix/v1/client//appstore" server="" referer="-" cookie="JSESSIONID=" set-cookie="-"
2013:09:23-13:41:18  reverseproxy: srcip="" localip="" size="39" user="-" host="" method="GET" statuscode="404" reason="-" extra="-" time="14408" url="/apple-touch-icon-152x152-precomposed.png" server="" referer="-" cookie="-" set-cookie="JSESSIONID=; Path=/mifs; Secure; HttpOnly, HASH_JSESSIONID=; Path=/mifs; Secure"
2013:09:23-13:41:18  reverseproxy: srcip="" localip="" size="39" user="-" host="" method="GET" statuscode="404" reason="-" extra="-" time="13898" url="/apple-touch-icon-152x152.png" server="" referer="-" cookie="-" set-cookie="JSESSIONID=; Path=/mifs; Secure; HttpOnly, HASH_JSESSIONID=; Path=/mifs; Secure"
2013:09:23-13:41:18  reverseproxy: srcip="" localip="" size="39" user="-" host="" method="GET" statuscode="404" reason="-" extra="-" time="14605" url="/apple-touch-icon-precomposed.png" server="" referer="-" cookie="-" set-cookie="JSESSIONID=; Path=/mifs; Secure; HttpOnly, HASH_JSESSIONID=; Path=/mifs; Secure"
2013:09:23-13:41:18  reverseproxy: srcip="" localip="" size="45" user="-" host="" method="GET" statuscode="404" reason="-" extra="-" time="14330" url="/apple-touch-icon.png" server="" referer="-" cookie="-" set-cookie="JSESSIONID=; Path=/mifs; Secure; HttpOnly, HASH_JSESSIONID=; Path=/mifs; Secure" 


I masked some information in 

This happens only with this subpath. There is another portal running on this webserver (same real and virtual server) and thats running smoothly

Any ideas?

WAF is kinda hart to debug since the logs give not much of a clue what is the issue [:(]

best regards
chaser


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  • PS: The first issue seemed to be caused by the internal server authenticating the clients via certificates, which the reverseproxy couldn't handle/isn't supported. DNAT has to be used

    Sophos support said:
    2013:09:30-11:16:51  reverseproxy: [Mon Sep 30 11:16:51.804534 2013] [ssl:warn] [pid 22153:tid 3718474608] AH02268: Proxy client certificate callback: (:443) downstream server wanted client certificate but none are configured

     wartet also auf eine Clientzertifikat als Authentifizierungsmechanismus. Das ist mit unserer Webserver Protection leider nicht möglich und somit auch der Einsatz dieser mit .

    Sie müssten hier auf ein DNAT ausweichen.