[Koha] Fw: Koha Staff and opac doesn't load after starting koha-plack

[Michael Kuhn]

Hi Indranil

On 21 December you wrote:

 > I have installed koha 18.11 on Ubuntu 18.04 and all went good till I
 > started koha-plack to improve performance. Initially the performance
 > improved significantly. But, when I shut down the machine and started
 > it later, both koha staff and opac failed to load.

On 24 December you wrote:

 > I have checked everything. Koha instance, plack, apache, everything
 > are running. All necessary ports are active.  But still are no staff
 > or opac page. I am really confused why !

Some questions that may help:

1. Does it work when you stop Plack?

2. You say "both koha staff and opac failed to load" - what does exactly 
happen? Do you get a white browser screen? Does the browser tell you 
anything? Will it show the Apache standard page?

3. You say "All necessary ports are active" - what are these ports 
exactly? (usually port 80 is used for the OPAC and port 8080 for the 
staff client)

For example, if you use port 80 you should be able to connect as follows 
on the host running Koha and Apache:

# telnet localhost 80
Trying ::1...
Connected to localhost.
Escape character is '^]'.

4. Do you maybe use a local (software) firewall that is blocking your 
access?

5. What kind of URL do you use - does it start with an IP address or a 
domain name?

Best wishes: Michael
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