-CHANGES - 2.3b1 - 2017-12-11
+CHANGES - 2.3b1 - 2017-12-14
============================
----------------------
- CUPS is now provided under the Apache License, Version 2.0.
-- Documentation updates (Issue #4580, Issue #5177)
+- Documentation updates (Issue #4580, Issue #5177, Issue #5192)
- The `lpoptions` command incorrectly saved default options (Issue #4717)
- The `lpstat` command now reports when new jobs are being held (Issue #4761)
- The `ippfind` command now supports finding printers whose name starts with an
--- /dev/null
+<!DOCTYPE html>
+<html>
+<!-- SECTION: Getting Started -->
+ <head>
+ <title>Firewalls</title>
+ <link rel="stylesheet" type="text/css" href="../cups-printable.css">
+ </head>
+ <body>
+ <h1 class="title">Firewalls</h1>
+
+ <p>This help document describes the ports that CUPS uses so that firewall administrators can allow traffic used for printing.</p>
+
+ <h2 class="title">Ports Used for Printer Sharing</h2>
+
+ <p>The following ports are used for printer sharing:</p>
+
+ <div class="table"><table summary="Ports Used for Printer Sharing">
+ <thead>
+ <tr><th>Port</th><th>TCP/UDP</th><th>Description</th></tr>
+ </thead>
+ <tbody>
+ <tr><td>53 (DNS)</td><td>TCP/UDP</td><td>Domain Name System lookups and service registrations.</td></tr>
+ <tr><td>137 (WINS)</td><td>UDP</td><td>Windows Internet Naming Service (name lookup for SMB printing).</td></tr>
+ <tr><td>139 (SMB)</td><td>TCP</td><td>Windows SMB printing.</td></tr>
+ <tr><td>445 (SMBDS)</td><td>TCP</td><td>Windows SMB Domain Server (authenticated SMB printing).</td></tr>
+ <tr><td>631 (IPP/IPPS)</td><td>TCP</td><td>Internet Printing Protocol requests and responses (print jobs, status monitoring, etc.)</td></tr>
+ <tr><td>5353 (mDNS)</td><td>UDP</td><td>Multicast DNS lookups and service registrations.</td></tr>
+ </tbody>
+ </table></div>
+
+
+ <h2 class="title">Ports Used for Network Printers</h2>
+
+ <p>The following ports are used for network printers:</p>
+
+ <div class="table"><table summary="Ports Used for Network Printers">
+ <thead>
+ <tr><th>Port(s)</th><th>TCP/UDP</th><th>Description</th></tr>
+ </thead>
+ <tbody>
+ <tr><td>53 (DNS)</td><td>TCP/UDP</td><td>Domain Name System lookups.</td></tr>
+ <tr><td>137 (WINS)</td><td>UDP</td><td>Windows Internet Naming Service (name lookup for SMB printing).</td></tr>
+ <tr><td>139 (SMB)</td><td>TCP</td><td>Windows SMB printing.</td></tr>
+ <tr><td>161 (SNMP)</td><td>UDP</td><td>SNMP browsing (broadcast) and status monitoring (directed to printer IP address).</td></tr>
+ <tr><td>443 (IPPS)</td><td>TCP</td><td>Internet Printing Protocol requests and responses (print jobs, status monitoring, etc.)</td></tr>
+ <tr><td>445 (SMBDS)</td><td>TCP</td><td>Windows SMB Domain Server (authenticated SMB printing).</td></tr>
+ <tr><td>515 (LPD)</td><td>TCP</td><td>Line Printer Daemon (LPD/lpr) print job submission and status monitoring.</td></tr>
+ <tr><td>631 (IPP/IPPS)</td><td>TCP</td><td>Internet Printing Protocol requests and responses (print jobs, status monitoring, etc.)</td></tr>
+ <tr><td>5353 (mDNS)</td><td>UDP</td><td>Multicast DNS lookups.</td></tr>
+ <tr><td>9100-9102</td><td>TCP</td><td>Raw print data stream (AppSocket/JetDirect).</td></tr>
+ </tbody>
+ </table></div>
+ </body>
+</html>
projects / thirdparty / cups.git / commitdiff
