- Differentiation of Hosting, VPS, Cloud VPS and Server - Secure your VPS/Server - Debug your WordPress

1. Hosting and WordPress
By: Nghia Than
Date: January 15, 2015
www.vHost.vn

2. Table of content
1. Differentiation of Hosting, VPS, Cloud VPS and
Server
2. Secure your VPS/Server
3. Debug your WordPress

3. Differentiation
3
Share Hosting VPS / Cloud VPS
Dedicated Server

4. Differentiation (cont)
Share Hosting Traditional VPS Cloud VPS
Dedicated
Server
User Account Most users account Lesser users account The same traditional VPS Only you
Resources
Sharing
√ √ √
Full control √ √ √
PHP Customize √ (*) √ √ √
Dedicated IP √ √ √
High Availability √
Control Panel √ No (**) No (**)
Upgrade Easy Easy Easy Harder

5. Differentiation (cont)
Share Hosting Traditional VPS Cloud VPS
Dedicated
Server
Pros
- Low $$$
- No need to pay control panel
license and other software like
softaculous, cloudlinux…on server
- No need to understand about
technical
- Ful control on your VPS
- Do what you want: install any web
server you like, custom any PHP
information depend on your
application
- Resources is guaranteed for VPS
- Ful control on your VPS
- Do what you want: install any web
server you like, custom any PHP
information depend on your
application
- Resources is guaranteed for VPS
- Hardware redundancy
- Resources is dedicated for
you
- Ful control on your server
- Do what you want: install any
web server you like, custom
any PHP information depend
on your application
Cons
- Share resources with others user
on server
- Security issue like: localhack,
ddos attacking…
- Limited resources
- Higher $$$ than share hosting
- Technical require
- License responsibility
- Share server resources: cpu, ram,
hdd, network…
- Higher $$$ than share hosting
- Technical require
- License responsibility
- Share server resources: cpu, ram,
hdd, network…
- Highest $$$
- Technical require

6. Secure your VPS/Server
Port change (SSH, cPanel, DA…)
Disable password authorisation
MySQL: tunnel + socket
SSL encryption
PHP tunning: which mode, disable function, safe_mode,
display_error, session variable, remote file includes, file upload…
Deal with virus: ClamAV
Deal with malware: Malware Detect

7. Secure your VPS/Server (cont)
PHP Comparision
PHP disable_function: proc_open, show_source, popen, disk_free_space, diskfreespace, leak, system, shell_exec,
passthru, allow_url_fopen, mail

8. Debug WordPress
WordPress debug option
Error log
• Move server check list
• Webserver log (plugin, themes, php code, htaccess, file/
folder permission, internal 500, update WordPress…)
• Application log (PHP, WordPress…)
• Can not send email

9. Thank you !!!
Q&A