Common error diagnosis in Nginx - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to specify the main configuration file for nginx.

Nginx

nginx -c [1]

Drag options to blanks, or click blank then click option'

A/etc/nginx/nginx.conf

B/var/log/nginx/error.log

C/usr/share/nginx/html

D/etc/passwd

Attempts:

3 left

💡 Hint

Common Mistakes

Using a log file path instead of the config file.

Using a directory path instead of a file.

Using unrelated system files.

The -c option tells nginx which configuration file to use. The main config file is usually /etc/nginx/nginx.conf.

2fill in blank

medium

Complete the command to test nginx configuration for syntax errors.

Nginx

nginx [1]

Drag options to blanks, or click blank then click option'

A-t

B-v

C-s

D-h

Attempts:

3 left

💡 Hint

Common Mistakes

Using -v which shows version info.

Using -s which sends signals to nginx.

Using -h which shows help.

The -t option tests the nginx configuration for syntax errors without starting the server.

3fill in blank

hard

Fix the error in the command to reload nginx after config changes.

Nginx

nginx -[1] reload

Drag options to blanks, or click blank then click option'

At

Bs

Cr

Dv

Attempts:

3 left

💡 Hint

Common Mistakes

Using -r which is not a valid option.

Using -t which tests config but does not reload.

Using -v which shows version.

The -s option sends signals to the nginx master process. To reload, use nginx -s reload.

4fill in blank

hard

Fill both blanks to create a dictionary of server names and their root directories from a list.

Nginx

servers = {name: [1] for name in server_names if name [2] 'example.com'}

Drag options to blanks, or click blank then click option'

A'/var/www/' + name

B==

C!=

Dlen(name)

Attempts:

3 left

💡 Hint

Common Mistakes

Using equality instead of inequality in the condition.

Using length instead of path concatenation.

Confusing the order of operands.

This dictionary comprehension maps each server name to its root directory path. It includes only names not equal to 'example.com'.

5fill in blank

hard

Fill all three blanks to filter and transform nginx log entries into a dictionary.

Nginx

log_summary = [1]: int([2]) for [3] in logs if 'error' in [3]

Drag options to blanks, or click blank then click option'

A'error_count'

Bentry.split()[2]

Centry

D'error'

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong variable name in the loop.

Using the wrong index when splitting the entry.

Using the string 'error' as a key instead of a fixed name.

This comprehension creates a dictionary with key 'error_count' and values as the integer of the third word in each log entry containing 'error'.