Proxy Error Apache Proxy SSL

[Ali Youssef]

Hi,

Ive been trying to setup reverse proxy with SSL and whenever I navigate to jira.mydomain.com I receive the error below. Also I have tried all of the solutions proposed by other posts but yet again it didn't work.

Proxy Error

The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request

Reason: DNS lookup failure for: localhost:8080secure

---

Apache/2.4.29 (Ubuntu) Server at jira.mydomain.com Port 443

P.S. The SSL is working 

Virtual Host Config (jira.mydomain.com.conf ):

<VirtualHost *:443 >

 ServerName jira.domain.com

 ProxyRequests Off

<Proxy *>

 Require all granted

 </Proxy>

    ProxyPass / http://localhost:8080 connectiontimeout=5 timeout=30

    ProxyPassReverse / http://localhost:8080

SSLCertificateFile fullchain.pem

SSLCertificateKeyFile privkey.pem

Include /etc/letsencrypt/options-ssl-apache.conf

 </VirtualHost>

<VirtualHost *:80>

 ServerName jira.domain.com

 Redirect Permanent / https://jira.domain.com

RewriteEngine on

RewriteCond %{SERVER_NAME} =jira.domain.com

RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,NE,R=permanent]

 </VirtualHost>

Also my server.xml config

      <Connector port="8080" relaxedPathChars="[]|" relaxedQueryChars="[]|{}^&#x5c;&#x60;&quot;&lt;&gt;"

                   maxThreads="150" minSpareThreads="25" connectionTimeout="20000" enableLookups="false"

                   maxHttpHeaderSize="8192" protocol="HTTP/1.1" useBodyEncodingForURI="true" redirectPort="8443"

                   acceptCount="100" disableUploadTimeout="true" bindOnInit="false" proxyName="jira.domain.com" proxyPort="443"  scheme="https" secure="true" />

 <Connector port="8009" URIEncoding="UTF-8" enableLookups="false" protocol="AJP/1.3"/>

[Ali Youssef · Accepted solution]

So I just figured out how to fix it: 
for the ProxyPass & ProxyPassReverse

ADD A "/" after the URL so instead of 

ProxyPass / http://localhost:8080

ProxyPassReverse / http://localhost:8080

the correct way to do it is by including the "/" at the end!

ProxyPass / http://localhost:8080/

ProxyPassReverse / http://localhost:8080/

[Fabrice Djigui Päckou]

Did you modify the /etc/hosts file of the proxy server or another server? What modification with you made?
THANKS

[Ali Youssef]

oh and for the localhost, I have also tried to type 127.0.0.1 instead and also my jira.domain.com was also added to /etc/hosts

[Fabrice Djigui Päckou]

For a little over a year, 2 of our Unix virtual servers have stopped without anyone knowing why.
These S1 and S2 servers serve respectively as a proxy server and servers on which Altassian applications are installed
(Jira, Confluence and Bitbucket).
When the problem occurs, we cannot join these 2 servers in SSH (impossible to have the prompt which asks to enter its identifier).
On a web browser, when we try to access one of the Atlassian applications, we get a blank page with an error message:

---------------------------------------------------------------------------------
Proxy 502 Error
Proxy Error The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request GET /A1/jira/secure/Dashboard.jspa.
Reason: DNS lookup failure for: full.name.server
---------------------------------------------------------------------------------
NB: full.name.server being an example. What is actually displayed is the full name of the server

Did you also have this problem?
Can you help me solve it please?
THANKS