apache

Question 1

apache error log

Answer 1

/etc/apache2/logs/error_log

Question 2

apache config file

Answer 2

/etc/apache2/conf.d/httpd.conf

Question 3

primary configuration file directory

Answer 3

/etc/apache2/conf.d

Question 4

contanes include files that add content to the httpd.conf file

Answer 4

/etc/apache2/conf.d/includes

Question 5

find list of apache modules

Answer 5

httpd -M

Question 6

apache logs and apache module logs located here

Answer 6

/usr/local/apache/logs

Question 7

How do you check what port apache is listening on?

Answer 7

give lsof and and netstat example here

Question 8

what’s the usual apache user?

Answer 8

“nobody”

Question 9

1xx apache return code

Answer 9

informational, we never see these

Question 10

2xx apache return code

Answer 10

success code, it’s working, no problem to process

Question 11

3xx apache return code

Answer 11

redirection, you’ll see these referenced in .htaccess files, but they are not a source of issues

Question 12

4xx apache return code

Answer 12

client errors

404 not found is most commonly seen when there are tomcat issues, mod_userdir issues, or document root issues

Question 13

5xx apache return code

Answer 13

server errors

500 internal server error, Most commonly seen when there are permission or script issues. Check the error logs for more information. Sometimes seen with CloudLinux when a site reaches a memory or processor limit part way through processing a request.

503 Service Unavailable. Most commonly seen with CloudLinux when a site reaches one of its limits at an expected juncture.

Question 14

what two ways can apache connect to other programs

Answer 14

CGI (the common gateway interface) and custom modules