Network Ports

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Required Network Ports

In order to allow access to ILLiad and its various component parts, the following server ports are required to be open.

SQL Ports 1433 or

Port opened outbound from web server and clients to SQL
server. This allows the ILLiad client to communicate with the
database. This would only need to be open for the webserver
(if separate server) and the ILLiad client to access the SQL
server. If you have changed the port used by SQL Server,
this port number will be different.

Port 1433 is the standard port, but 1344 is set up to use as
an alternative if you are having trouble connecting. 

Public Web
443 or

Port opened inbound to all or any IP ranges that are allowed
access to the ILLiad web forms. This allows customers to
access the ILLiad Web pages and receive RSS Feeds. This
would need to be open to everyone or could be restricted if
you wanted to limit access to the customer interface (not
commonly done). ILLiad's Web Platform requires an SSL
certificate, so most sites are using SSL for their ILLiad web
pages as well.

Use port 443 for secure web pages (recommended) or
80 for non-secure pages.

443 Port opened only outbound from the ILLiad webserver to
OCLC's web platform server ( This
allows the ILLiad Connection Manager and ILLiad client to
contact OCLC for update and download purposes.
ILLiad Update

The ILLiad server updater now uses secure HTTPS to download updated files. 

This needs to be open to

ILLiad Client

Each time it is opened, the ILLiad client checks against
the Atlas server to verify the latest version available. If the
installed version is older than the latest available, it prompts
the user to update and downloads that update from the
Atlas server over port 443. 

This is a direct connection and not through a proxy server.


ILLiad web server needs to have port opened inbound and
outbound to the world as well as inbound from staff clients.
Staff clients need the port opened inbound and outbound to
the ILLiad web server only. This allows the Electronic Delivery
client machines to send electronic documents to the ILLiad
Server and the ILLiad Server to send those documents out
to other ILLiad Servers using the Odyssey Protocol.

The Odyssey Manager service will discard anything sent
over this port that is not a recognized TIFF or PDF document
with an appropriately formatted header

OCLC Article
443 Port opened only outbound from the ILLiad web server to
OCLC's Article Exchange web platform server ( 

To change the port that the ILLiad client uses to connect to Microsoft SQL Server, create or edit your existing logon.dbc file and enter,1344 into the Server field, where is your server IP address.

Optional Network Ports

You may want to opening the following ports if you use the services described.

Z39.50 Varies If you plan on using Z39.50 to search your local OPAC from
within ILLiad, you will need to check that the ILLiad Client
machines have access to the Z39.50 server over that port.
This port differs from OPAC to OPAC so you will need to
verify that value. The client needs to be able to connect to
the port to display local holdings information.
ISO ILL 1611 The ILLiad web server needs to have this port opened both
inbound and outbound. This allows the ILLiad client to send
and receive ISO ILL requests. This is generally open to all
IP addresses.
4500 The ILLiad web server needs to be able to communicate
with the PatronAPI server outbound to authenticate if using
PatronAPI authentication. While this port is typically 4500,
the port may differ based on your unique setup.
SIRSI SymphonyAPI 8080

The ILLiad web server needs to be able to communicate outbound
with the SymphonyAPI server to verify SymphonyAPI authentication
into SIRSI.

LDAP 389 or

The ILLiad web server needs to be able to communicate
with the LDAP server outbound to authenticate if using LDAP
authentication. The LDAP server needs to allow traffic from
the ILLiad web server's IP to request authentication.

Port 389 is used for standard LDAP and 636 is used for SSL.

Remote Desktop
3389 This would be opened only if you wish to allow customer
support to access your ILLiad Server via Remote Desktop


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