Just Host Web Hosting Help

Open New Ports

For security reasons, many unused ports are closed by default. In certain circumstances, we can open those ports for you.

Can You Give Me Access to a Specific Port Number?

On account of the shared hosting environment, Just Host restricts port access. Because every account on the server shares a single IP address and no single account is assigned the IP address for the box, most ports are blocked. We block access to certain ports to help avoid having security holes in the firewall and to allow us to monitor and control customers who attempt to abuse the different services that we allow to run through these ports. We have only opened the ports for processes which we are running on our servers (web mail, cPanel, etc.).

To gain access to blocked ports, it is necessary to lease a dedicated IP address through Just Host. Purchasing a Dedicated IP address allows your account to have access to ports that are normally closed on the shared IP. This applies to both outbound and inbound connections running on non-standard ports.

If you have a dedicated IP and require ports to be opened, you may contact us via Phone or Live Chat. We will add the requested ports without any additional charges.

What Port Numbers Can You Open?

With a dedicated IP address on your account, we can generally open any port over 1024. Ports 1024 and lower are restricted and cannot be opened.

If you would like to purchase a dedicated IP, please log into the cPanel of your hosting account and click on the Dedicated IP tab and follow the wizard to purchase. You will be charged and the dedicated IP will be automatically installed.

Note: Because of the IP address change you may experience a period of about 6-24 hours where your site appears to be non-functional. This is the standard propagation time that is required to update your DNS throughout the world. Please note, your temporary URL will also be changed and will be unavailable while the Dedicated IP is installed on your account. This is normal and you will be able to view your site by visiting your site using your new Dedicated IP within 6-24 hours.

Knowledgebase Article 124,960 views bookmark tags: access firewall outgoing port restrictions


Was this resource helpful?

Did this resolve your issue?


Please add any other comments or suggestions about this content:





Recommended Help Content

I need to be able to change the port used by Eudora for incoming or outgoing mail.
Knowledgebase Article 111,589 views tags: eudora port ports

How can I change the outgoing SMTP port from 25 to 26?
Knowledgebase Article 377,085 views tags: email outgoing port send sending smtp

This article explains how to manager your ports through IPTables.
Knowledgebase Article 29,092 views tags: close dedi dedicated iptables open ports vps

Related Help Content

If you are receiving an error that the page could not be displayed when trying to log into the control panel. It is most likely due to the fact that your firewall is blocking the port that the control
Knowledgebase Article 210,070 views tags: accessing control firewall log login panel

What is the difference between a Shared & Dedicated IP? How do I get Port Access? What type of SSL Certificate is right for me?
Knowledgebase Article 352,459 views tags: ip port secure

How to modify the Exim Port (Mail Transfer Agent) in the WHM
Knowledgebase Article 40,758 views tags: dedicated exim outgoing port sending server whm

How do I Access My Account Control Panel?
Knowledgebase Article 485,364 views tags: access alternate control cpanel panel port secure secured

I cannot make an outbound connection from my script
Knowledgebase Article 116,930 views tags: ip outgoing port

I get the following database connection error: Warning: mysql_connect() [function.mysql-connect]: Host 'host#.Justhost.com' is blocked because of many connection errors; unblock with 'mysqlad
Knowledgebase Article 144,973 views tags: blocked connection host localhost mysql

Clients in China are unable to view my website. My website's content doesn't contain any objectionable material.

Why can I not send/receive certain types of attachment?
Knowledgebase Article 83,167 views tags: attachment block blocked email malware trojan virus