localhost doesn't work on Yosemite - osx-yosemite

Question

I have just today upgraded to Yosemite. I've not had a mac long. But with the update my localhost doesn't work. Chrome returns This webpage is not available. I've tried
sudo apachectl start to try and get it back but no luck. I'm a new mac user and haven't had to undergo an OS update, so not really sure where to start.

Answer 1

I've stolen the following from
https://github.com/liip/php-osx/issues/75 and http://php-osx.liip.ch/#uninstall
1. reinstall PHP
homebrew helps with this
brew update
brew upgrade
brew uninstall --force php54
brew unlink php54
brew uninstall --force php55
brew unlink php55
rm -rf /usr/local/php5*
brew install php55
2. where is libphp5.so?
please comment out the existing 'LoadModule php5_module' in /private/etc/apache2/httpd.conf and add this
LoadModule php5_module /path/to/lib/libphp5.so
3. delete +php-osx.conf and +entropy-php.conf
delete the files
+php-osx.conf
+entropy-php.conf
in
/etc/apache2/other
4. testing if everything works
try to start apache with
sudo apachectl start

Answer 2

did you try
apachectl configtest
to see if it really is running?
I've just found this:
http://macosx.com/threads/apache-wont-start-up.299851/
-> summary
'Apache couldn't find a certain log file'
cd /private/var/log
sudo mkdir apache2

Answer 3

I'm just upgraded my mac into yosemite, and boom my apache isn't working. i follow the instruction from here, and my localhost is back to normal again, here the simple steps i did.
Open your httpd.conf located on /etc/apache2, please open with sudo like sudo vi httpd.conf (i'm using vim to open the file, for most simple steps)
Find the line with this value LoadModule php5_module libexec/apache2/libphp5.so, you will found it marked with #, so delete the hash (#) and save the file by press ESC => type :wq (command for write and quit)
Restart your apache by using command sudo apachectl restart
See your localhost on browser
*tips:
For fast on searching you can press ESC and then /, and type php5_module => ENTER
You can also remove the mark (hash) fot these line, if you need to enable rewrite_module to activate mod_rewrite and vhost_alias_module for virtual-host on your machine.
*warning
If your MOD_REWRITE still doesn't work, in order to use .htaccess try to check this.
Find the section and change
AllowOverride None to AllowOverride All

Answer 4

Solution in Jan 2016 for El Capitan
None of the other answers worked for me.
run sudo apachectl configtest
I got an error:
AH00526: Syntax error on line 20 of /private/etc/apache2/extra/httpd-mpm.conf: Invalid command 'LockFile', perhaps misspelled or defined by a module not included in the server configuration
That lead me to https://apple.stackexchange.com/questions/211015/el-capitan-apache-error-message-ah00526 and the solution
Edit the file /etc/apache2/extra/httpd-mpm.conf to remove this part:
#
# The accept serialization lock file MUST BE STORED ON A LOCAL DISK.
#
<IfModule !mpm_winnt_module>
<IfModule !mpm_netware_module>
LockFile "/private/var/log/apache2/accept.lock"
</IfModule>
</IfModule>
I commented that out, rolled back all the other changes(except brew update/upgrade).

Answer 5

My problem here was the httpd.conf file and this line
Include /private/etc/apache2/other/*.conf
Where it tried to load the osx version of PHP I had. I needed to change it to my PHP version
Include /private/etc/apache2/other/php5.conf
Permissions seem to be an issue now however.

Answer 6

I just did:
brew update
brew upgrade
and
sudo apachectl restart
..."It works!"

Answer 7

I ran into this too after upgrading Yosemite recently. Neither localhost nor 127.0.0.1 would resolve. Apparently Yosemite activated or reconfigured a Firewall (System Preferences > Security & Privacy > Firewall [tab]).
I resolved the issue by accessing the Firewall Options and unchecking the box labelled 'Block all incoming connections'. Probably more importantly - that caused the 'Enable stealth mode' option below it to be switched off. That, stealth mode, was likely the culprit.
After saving above changes localhost & 127.0.0.1 worked fine for me again.