| sidebar_position | 4 | |||||||
|---|---|---|---|---|---|---|---|---|
| description | Scan for open TCP ports on network hosts. NETworkManager Port Scanner supports flexible host and port range inputs for comprehensive port scanning. | |||||||
| keywords |
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With the Port Scanner you can scan for open TCP ports on one or multiple hosts to determine which services are running.
:::info
TCP (Transmission Control Protocol) is a connection-oriented transport-layer protocol. Establishing a connection requires a three-way handshake between client and server. Port scanning tests whether this handshake can be initiated on a given port, which indicates a listening service.
:::
| Host | Description |
|---|---|
10.0.0.1 |
Single IP address (10.0.0.1) |
10.0.0.100 - 10.0.0.199 |
All IP addresses in a given range (10.0.0.100, 10.0.0.101, ..., 10.0.0.199) |
10.0.0.0/23 |
All IP addresses in a subnet (10.0.0.0, ..., 10.0.1.255) |
10.0.0.0/255.255.254.0 |
All IP addresses in a subnet (10.0.0.0, ..., 10.0.1.255) |
10.0.[0-9,20].[1-2] |
Multiple IP addresses like (10.0.0.1, 10.0.0.2, 10.0.1.1, ...,10.0.9.2, 10.0.20.1) |
borntoberoot.net |
Single IP address resolved from a host (10.0.0.1) |
borntoberoot.net/24 |
All IP addresses in a subnet resolved from a host (10.0.0.0, ..., 10.0.0.255) |
borntoberoot.net/255.255.255.0 |
All IP addresses in a subnet resolved from a host (10.0.0.0, ..., 10.0.0.255) |
| Port | Description |
|---|---|
1-1024 |
All ports in a given range (1, 2, ..., 1024) |
80; 443; 8080; 8443 |
Multiple ports like (80, 443, 8080, 8443) |
:::note
Multiple inputs can be combined with a semicolon (;).
Example: 10.0.0.0/24; 10.0.[10-20]1 or 1-1024; 8080; 8443
:::
| Button | Description |
|---|---|
| Select port profile | Opens a dialog to select a pre-defined port profile to populate the ports field |
| Action | Description |
|---|---|
| Copy | Copies the selected information to the clipboard |
| Export... | Exports the selected or all results to a file |
Inherit the host from the general settings.
Type: Boolean
Default: Enabled
:::note
If this option is enabled, the Host is overwritten by the host from the general settings and the Host is disabled.
:::
Hostname or IP range to scan for open ports.
Type: String
Default: Empty
Example:
server-01.borntoberoot.net1.1.1.1; 1.0.0.110.0.0.0/24
:::note
See also the Port Scanner example inputs for more information about the supported host formats.
:::
TCP ports to scan each host for.
Type: String
Default: Empty
Example:
1-102480; 443; 8080; 8443
:::note
See also the Port Scanner example inputs for more information about the supported port formats.
:::
List of common TCP ports to scan for.
Type: List<NETworkManager.Models.Network.PortProfileInfo>
Default:
| Name | Ports |
|---|---|
| DNS (via TCP) | 53 |
| NTP (via TCP) | 123 |
| Webserver | 80; 443 |
| Webserver (Other) | 80; 443; 8080; 8443 |
| Remote access | 22; 23; 3389; 5900 |
| Mailserver | 25; 110; 143; 465; 587; 993; 995 |
| Filetransfer | 20-21; 22; 989-990; 2049 |
| Database | 1433-1434; 1521; 1830; 3306; 5432 |
| SMB | 139; 445 |
| LDAP | 389; 636 |
| HTTP proxy | 3128 |
:::note
Right-click on a selected port profile to edit or delete it.
You can also use the Hotkeys F2 (edit) or Del (delete) on a selected port profile.
:::
Show closed ports in the result list.
Type: Boolean
Default: Disabled
Timeout in milliseconds after which a port is considered closed / timed out.
Type: Integer [Min 100, Max 15000]
Default: 4000
Resolve the hostname for given IP addresses.
Type: Boolean
Default: Enabled
Maximum number of threads used to scan hosts (1 thread = 1 host).
Type: Integer [Min 1, Max 10]
Default: 5
:::warning
Too many simultaneous requests may be blocked by a firewall. You can reduce the number of threads to avoid this, but this will increase the scan time.
Too many threads can also cause performance problems on the device.
:::
:::note
This setting only changes the maximum number of concurrently executed threads per host scan. See also the General settings to configure the application-wide thread pool.
:::
Maximum number of threads used to scan for ports for each host (1 thread = 1 port per host).
Type: Integer [Min 1, Max 512]
Default: 256
:::warning
Too many simultaneous requests may be blocked by a firewall. You can reduce the number of threads to avoid this, but this will increase the scan time.
Too many threads can also cause performance problems on the device.
:::
:::note
This setting only changes the maximum number of concurrently executed threads per port scan. See also the General settings to configure the application-wide thread pool.
:::