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Release: Australia · Updated: 2026-03-12 · Official documentation · View source

Shazzam probe, port probes, and protocols

Port scanning is the first step in the discovery process. The Shazzam probe performs port scanning, regardless of whether you use patterns for horizontal discovery. The following table lists the known ports and protocols used by Discovery.

After upgrading to Discovery Admin Workspace version 1.3.1 (August 2024 Store), you can navigate to Workspaces > Discovery Admin Workspace > Insights and use the enhanced dashboard.

Several port probes are available in the base system. Each port probe uses an IP Service, which is a record that tells Discovery which port to use for a specific protocol. Review this table before you block any ports with a firewall.

Important: Make sure that you do not block any ports that Discovery needs.

Default port probe nameDefault classificationDefault IP Service and port
dnsProcess Classification \[discovery\_classy\_proc\]dns \(port 53\)
httpHTTP Classification \[discovery\_classy\_http\]http \(port 80\) and https \(port 443\)
ip\_phoneSNMP Classification \[discovery\_classy\_snmp\]sip \(port 5060\)
osxScan Results Application Classifier \[discovery\_classy\_scan\_app\]afp \(port 548\)
printerScan Results Application Classifier \[discovery\_classy\_scan\_app\]hp-pdl-datastr \(port 9100\) and printer \(port 515\)
slpProcess Classification \[discovery\_classy\_proc\]slp \(port 427\)
snmpSNMP Classification \[discovery\_classy\_snmp\]snmp \(port 161\)
sshUNIX Classification \[discovery\_classy\_unix\]ssh \(port 22\)
tls\_ssl\_certs tls\_ssl\_certs- SSL ports: 443, 8443, 9443, 636 \(ldaps\), 993 \(imaps\), 995 \(popssl\), 989, 990 - StartTLS ports: 25 \(smtp\), 110, 143, 389, 21, 587 \(smtp\)
vmappApplication Classification \[discovery\_classy\_appl\]vmapp\_https \(port 5480\) and vmapp6\_https \(port 9443\)
wbemCIM Classification \[discovery\_classy\_cim\]wbem\_https \(port 5989\)
winrmWindows Classification \[discovery\_classy\_windows\]winrm \(port 5985\) and winrm\_ssl \(port 5986\)
winsProcess Classification \[discovery\_classy\_proc\]ms-nb-ns \(port 137\)
wmiWindows Classification \[discovery\_classy\_windows\]epmap \(port 135\)

This table shows you other common ports and protocols that Discovery uses. All ports listed in the Default port probes and default IP services table are also included in the following table.

NameService namePortDetailsCreatesProtocol
afpApple File Protocol548  TCP
BEA Weblogic 7001 cmdb_ci_app_serverTCP
dnsDomain Name Service53To resolve the name of each IP Address TCP/UDP
epmapMicrosoft RPC (WMI, DCOM)135Windows Systems TCP
ftp 21  TCP
ftpsFTP over SSL (control channel)990tls_ssl_certs (SSL) TCP
ftps-dataFTP over SSL (data channel)989tls_ssl_certs (SSL) TCP
hp-pdl-datastrPrinter PDL Data Stream9100HP Printers TCP
httpHyperText Transfer Protocol80Web Serverscmdb_ci_web_serverTCP
httpsHyperText Transfer Protocol over Secure Socket443Secure Web Serverscmdb_ci_web_serverTCP
https-altHTTPS alternate port8443tls_ssl_certs (SSL) TCP
IBM DB2 50000  TCP
IBM MQSeries 1414  TCP
IBM Websphere 9080  TCP
IBM WebSphere SSL 9443  TCP
imapInternet Message Access Protocol143StartTLS (tls_ssl_certs) TCP
IMAPS 993  TCP
pip (Internet Print Protocol)IP Phone/ Session Initiation Protocol5060  TCP
LDAP 389  TCP
LDAPs 636  TCP
Microsoft netbios 139  TCP
Microsoft-ds 445  TCP
ms-nb-ns 137  UDP
Microsoft SQL server 1433  TCP
MySQL 3306  TCP
Nagios NRPE 5666  TCP
nfs 2049  TCP/UDP
Oracle TNS 1521  TCP
POP3 110  TCP
popsslPost Office Protocol 3 over SSL995tls_ssl_certs (SSL) TCP
postgresql 5432 cmdb_ci_databaseTCP
printerPrinter515Printers TCP
sipSIP (Session Initiation Protocol)5060  TCP
slpService Location Protocol (SLP)427  TCP/UDP
smtpSimple Mail Transfer Protocol25  TCP
smtp-submissionSMTP Submission (StartTLS)587StartTLS (tls_ssl_certs) TCP
smux (SNMP multiplexing) 199  UDP
snmpSimple Network Management Protocol161Network Devices UDP
snmptrap 162  UDP
sshSecure Shell Service22Unix Systems TCP
sunrpc 111  TCP
telnet 23  TCP
TIBCO Rendezvous 7500  TCP
Tomcat HTTP 8080  TCP
vmapp6_https 9443  TCP
vmapp_httpsvCenter Server Appliance Web Interface using https5480  TCP
wbem_httpsCIM-XML via HTTPS(WBEM)5989CIM Classification TCP
winrmWindows Remote Management5985Windows Systems TCP
winrm_sslWindows Remote Management over SSL5986Windows Systems TCP
winsWindows Internet Name Service137NetBIOS Name Resolver UDP

Windows and dynamic ports

Supported Windows machines can have dynamic ports ranges: 49152-65535 for both TCP and UDP.

Parent Topic:Port probes