Install cacti0.8.8g on RHEL6.1

[skywing88]

HI, Dear All
I need some help. I'm a novice to cacti. Recently I downloaded the cacti0.8.8g , which is the release latest version, and installed it on RHEL6.1 step by step following the manual. After edit of /etc/crontab, I got the error information (HTTP 500 Internal Server Error) when attempting to open the page "http://192.168.1.7/cacti".
However, The apache page and phpinfo page can be displayed without problem, which means firewall and httpd are normally configured.
Besides, SELinux is disabled as well.

I will be appreciate if anyone can give me any instruction or tell me what I should do for further troubleshooting. Thanks a lot!![/b]

[phalek]

First of all, enable php error logging by uncommenting the following line in /etc/php.ini :

Code: Select all

error_log = syslog

Then restart apache and go to that page again. You should be able to see PHP error showing up in your syslog then, telling you what may be wrong.

[skywing88]

First of all, enable php error logging by uncommenting the following line in /etc/php.ini :

Code: Select all

error_log = syslog

Then restart apache and go to that page again. You should be able to see PHP error showing up in your syslog then, telling you what may be wrong.

Thanks for replying, I have enabled php error logging as u have advised. but find that nothing has been logged in the /var/log/message after visiting that page again. Is the /var/log/message where the syslog is recorded?

[phalek]

For RedHat/CentOs, yes, /var/log/messages is the place to go.

Did you restart apache/httpd ?

[skywing88]

The log is as following.

[root@RHEL6for-Cacit log]# cat /var/log/messages
Mar 3 20:43:21 RHEL6for-Cacit httpd: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/curl.so' - /etc/php.d/curl.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:43:21 RHEL6for-Cacit httpd: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/dom.so' - /etc/php.d/dom.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:43:21 RHEL6for-Cacit httpd: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/fileinfo.so' - /etc/php.d/fileinfo.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:43:21 RHEL6for-Cacit httpd: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/gd.so' - /etc/php.d/gd.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:43:21 RHEL6for-Cacit httpd: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/json.so' - /etc/php.d/json.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:43:21 RHEL6for-Cacit httpd: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/ldap.so' - /etc/php.d/ldap.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:43:21 RHEL6for-Cacit httpd: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/mysql.so' - /etc/php.d/mysql.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:43:21 RHEL6for-Cacit httpd: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/mysqli.so' - /etc/php.d/mysqli.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:43:21 RHEL6for-Cacit httpd: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/pdo.so' - /etc/php.d/pdo.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:43:21 RHEL6for-Cacit httpd: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/pdo_mysql.so' - /etc/php.d/pdo_mysql.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:43:21 RHEL6for-Cacit httpd: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/pdo_sqlite.so' - /etc/php.d/pdo_sqlite.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:43:21 RHEL6for-Cacit httpd: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/phar.so' - /etc/php.d/phar.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:43:21 RHEL6for-Cacit httpd: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/snmp.so' - /etc/php.d/snmp.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:43:21 RHEL6for-Cacit httpd: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/sqlite3.so' - /etc/php.d/sqlite3.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:43:21 RHEL6for-Cacit httpd: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/wddx.so' - /etc/php.d/wddx.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:43:21 RHEL6for-Cacit httpd: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/xmlreader.so' - /etc/php.d/xmlreader.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:43:21 RHEL6for-Cacit httpd: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/xmlwriter.so' - /etc/php.d/xmlwriter.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:43:21 RHEL6for-Cacit httpd: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/xsl.so' - /etc/php.d/xsl.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:43:21 RHEL6for-Cacit httpd: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/zip.so' - /etc/php.d/zip.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:45:01 RHEL6for-Cacit php: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/curl.so' - /etc/php.d/curl.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:45:01 RHEL6for-Cacit php: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/dom.so' - /etc/php.d/dom.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:45:01 RHEL6for-Cacit php: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/fileinfo.so' - /etc/php.d/fileinfo.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:45:01 RHEL6for-Cacit php: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/gd.so' - /etc/php.d/gd.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:45:01 RHEL6for-Cacit php: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/json.so' - /etc/php.d/json.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:45:01 RHEL6for-Cacit php: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/ldap.so' - /etc/php.d/ldap.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:45:01 RHEL6for-Cacit php: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/mysql.so' - /etc/php.d/mysql.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:45:01 RHEL6for-Cacit php: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/mysqli.so' - /etc/php.d/mysqli.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:45:01 RHEL6for-Cacit php: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/pdo.so' - /etc/php.d/pdo.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:45:01 RHEL6for-Cacit php: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/pdo_mysql.so' - /etc/php.d/pdo_mysql.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:45:01 RHEL6for-Cacit php: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/pdo_sqlite.so' - /etc/php.d/pdo_sqlite.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:45:01 RHEL6for-Cacit php: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/phar.so' - /etc/php.d/phar.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:45:01 RHEL6for-Cacit php: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/snmp.so' - /etc/php.d/snmp.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:45:01 RHEL6for-Cacit php: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/sqlite3.so' - /etc/php.d/sqlite3.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:45:01 RHEL6for-Cacit php: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/wddx.so' - /etc/php.d/wddx.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:45:01 RHEL6for-Cacit php: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/xmlreader.so' - /etc/php.d/xmlreader.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:45:01 RHEL6for-Cacit php: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/xmlwriter.so' - /etc/php.d/xmlwriter.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:45:01 RHEL6for-Cacit php: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/xsl.so' - /etc/php.d/xsl.so: cannot open shared object file: No such file or directory in Unknown on line 0
Mar 3 20:45:01 RHEL6for-Cacit php: PHP Warning: PHP Startup: Unable to load dynamic library '/etc/php.d/zip.so' - /etc/php.d/zip.so: cannot open shared object file: No such file or directory in Unknown on line 0

[phalek]

That's not the path where these libs are usually in...

/etc/php.d/

It's either in ( 32bit RHEL/CentOS ):
extension_dir => /usr/lib/php/modules => /usr/lib/php/modules

or ( 64bit RHEL/CentOS ):
extension_dir => /usr/lib64/php/modules => /usr/lib64/php/modules

[skywing88]

That's not the path where these libs are usually in...

/etc/php.d/

It's either in ( 32bit RHEL/CentOS ):
extension_dir => /usr/lib/php/modules => /usr/lib/php/modules

or ( 64bit RHEL/CentOS ):
extension_dir => /usr/lib64/php/modules => /usr/lib64/php/modules

Thank u very much! phalek, I used "ln -s /usr/lib/php/modules/* /etc/php.d" command. Cause according to the manual ,the extension_dir is pointed to "/etc/php.d"
Now I can see the page:

[phalek]

I see.

That's for really old PHP installs only ( 4.x ? ) so you shouldn't have used that.

I'Ve created a blog post with the install steps on a RHEL6 / RHEL7 system which should take care about everything you need ( except it's for 0.8.8f , but the steps are usually the same for 0.8.8g):
http://blog.network-outsourcing.de/cact ... ing-cacti/

[skywing88]

I see.

That's for really old PHP installs only ( 4.x ? ) so you shouldn't have used that.

I'Ve created a blog post with the install steps on a RHEL6 / RHEL7 system which should take care about everything you need ( except it's for 0.8.8f , but the steps are usually the same for 0.8.8g):
http://blog.network-outsourcing.de/cact ... ing-cacti/

Mine is PHP-5.3.3. You are right. I have changed "extension=/etc/php.d" to "extension=/etc/lib/php/modules". It's also ok to open the page of installation.