Gateway activity logs

Private source IP substitution

Gateway logs will only show the public IP address for the Source IP field. Private IP addresses are substituted by a public IP address via network address translation (NAT).

Gateway activity logs show the individual DNS queries, Network packets, and HTTP requests inspected by Gateway. You can also download encrypted SSH command logs for sessions proxied by Gateway.

To view Gateway activity logs, log in to Zero Trust ↗ and go to Logs > Gateway. Select an individual row to investigate the event in more detail.

Enterprise users can generate more detailed logs with Logpush.

Selective logging

By default, Gateway logs all events, including DNS queries and HTTP requests that are allowed and not a risk. You can choose to disable logs or only log blocked requests. To customize what type of events are recorded, log in to Zero Trust ↗ and go to Settings > Network. Under Activity Logging, indicate your DNS, Network, and HTTP log preferences.

These settings will only apply to logs displayed in Zero Trust. Logpush data is unaffected.

DNS logs

Explanation of the fields

Basic information

Field	Description
DNS	Name of the domain that was queried.
Email	Email address of the user who registered the WARP client where traffic originated from. If a non-identity on-ramp (such as a proxy endpoint) or machine-level authentication (such as a service token) was used, this value will be non_identity@<team-domain>.cloudflareaccess.com.
Action	The Action Gateway applied to the query (such as Allow or Block).
Time	Date and time of the DNS query.
Resolver Decision	The reason why Gateway applied a particular Action to the request. Refer to the list of resolver decisions.

Matched policies

Field	Description
Policy Name	Name of the matched policy (if there is one).
Policy ID	ID of the matched policy (if there is one).
Policy Description	Description of the matched policy (if there is one).

Custom resolver

Field	Description
Address	Address of your custom resolver.
Policy	Name of the matched resolver policy.
Response	Status of the custom resolver response.
Time (in milliseconds)	Duration of time it took for the custom resolver to respond

Identities

Field	Description
Email	Email address of the user who registered the WARP client where traffic originated from.
User ID	UUID of the user. Each unique email address in your organization will have a UUID associated with it.
Device Name	Display name of the device returned by the operating system to the WARP client. Typically this is the hostname of a device. Not all devices will have a device name. Device names are not guaranteed to be unique.
Device ID	UUID of the device connected with the WARP client. Each unique device in your organization will have a UUID associated with it each time the device is registered for a particular email. The same physical device may have multiple UUIDs associated with it.
Last authenticated	Date and time the user last authenticated their Zero Trust session.

DNS query details

Field	Description
Query Type	Type of DNS query ↗.
Query Category	Content categories that the domain belongs to.
Matched Categories	Name of the Gateway policy category that match the domain.
Matched Indicator Feed Name	Name of the indicator feeds that matched a Gateway policy (if any).
Query Indicator Feed Name	Name of the indicator feeds that a matched domain or IP belongs to (if any).
Source IP	Public source IP address of the DNS query.
Source IP Country	Country code of the DNS query.
Source Internal IP	Private IP address assigned by the user’s local network (if any).
Resolver IP	Public IP address of the DNS resolver.
Resolved IPs	Resolved IP addresses in the response (if any).
Port	Port that was used to make the DNS query.
Protocol	Protocol that was used to make the DNS query (such as https).
DNS Location	User-configured location from where the DNS query was made.
Location ID	ID of the DNS location where the query originated.

Resolver decisions

Name	Value	Description
blockedByCategory	3	Domain or hostname matched a category in a Block policy.
allowedOnNoLocation	4	Allowed because query did not match a Gateway DNS location.
allowedOnNoPolicyMatch	5	Allowed because query did not match a policy.
blockedAlwaysCategory	6	Domain or hostname is always blocked by Cloudflare.
overrideForSafeSearch	7	Response was overridden by a Safe Search policy.
overrideApplied	8	Response was overridden by an Override policy.
blockedRule	9	IP address in the response matched a Block policy.
allowedRule	10	IP address in the response matched an Allow policy.

Network logs

Failed connection logs

Gateway will only log failed connections in network session logs. These logs are available for Enterprise users via Logpush or GraphQL.

Explanation of the fields

Basic information

Field	Description
Source IP	IP address of the user sending the packet.
Source Internal IP	Private IP address assigned by the user’s local network.
Destination IP	IP address of the packet’s target.
Action	The Gateway Action taken based on the first rule that matched (such as Allow or Block).
Session ID	ID of the unique session.
Time	Date and time of the session.

Matched policies

Field	Description
Policy Name	Name of the matched policy (if there is one).
Policy ID	ID of the policy enforcing the decision Gateway made.
Policy Description	Description of the matched policy (if there is one).

Identities

Field	Description
Email	Email address of the user sending the packet. This is generated by the WARP client.
User ID	ID of the user sending the packet. This is generated by the WARP client.
Device Name	Name of the device that sent the packet.
Device ID	ID of the device that sent the packet. This is generated by the WARP client.
Last Authenticated	Date and time the user last authenticated with Zero Trust.

Network query details

Field	Description
Source IP	IP address of the user sending the packet.
Source Port	Source port number for the packet.
Source Country	Country code for the packet source.
Destination IP	IP address of the packet’s target.
Destination Port	Destination port number for the packet.
Destination Country	Destination port number for the packet.
Protocol	Protocol over which the packet was sent.
Detected Protocol	The detected network protocol.
SNI	Host whose Server Name Indication (SNI) header Gateway will filter traffic against.
Virtual Network	Virtual network that the client is connected to.
Category details	Category or categories associated with the packet.
Proxy PAC Endpoint	PAC file proxy endpoint Gateway forwarded traffic to, if applicable.

HTTP logs

Note

When an HTTP request results in an error, Gateway logs the first 512 bytes of the request for 30 days for internal troubleshooting. Otherwise, Gateway does not log HTTP bodies.

Explanation of the fields

Basic information

Field	Description
Host	Hostname in the HTTP header for the HTTP request.
Email	Email address of the user who made the HTTP request. This is generated by the WARP client.
Action	The Gateway Action taken based on the first rule that matched (such as Allow or Block).
Request ID	Unique ID of the request.
Time	Date and time of the HTTP request.
Source Internal IP	Private IP address assigned by the user’s local network.
User Agent	User agent header sent in the request by the originating device.
Policy details	Policy corresponding to the decision Gateway made based on the traffic criteria of the request.
DLP profiles	Name of the matched DLP profile (if there is one).
DLP profile entries	Name of the matched entry within the DLP profile (if there is one).
Uploaded/downloaded file	Information about the file transferred in the request found by enhanced file detection. Details include: File name File type File size File hash (for Allowed requests only) Content type Direction (Upload/Download) Action (Block/Allow)

Matched policies

Field	Description
Policy Name	Name of the matched policy (if there is one).
Policy ID	ID of the matched policy (if there is one).
Policy Description	Description of the matched policy (if there is one).

Identities

Field	Description
Email	Email address of the user who made the HTTP request. This is generated by the WARP client.
User ID	ID of the user who made the request. This is generated by the WARP client.
Device Name	Name of the device that made the request.
Device ID	ID of the device that made the request. This is generated by the WARP client on the device that created the request.
Last Authenticated	Date and time the user last authenticated with Zero Trust.

HTTP query details

Field	Description
HTTP Version	HTTP version of the origin that Gateway connected to on behalf of the user.
HTTP Method	HTTP method used for the request (such as GET or POST).
HTTP Status Code	HTTP status code returned in the response.
URL	Full URL of the HTTP request.
Referer	Referer request header containing the address of the page making the request.
Source IP	Public source IP address of the HTTP request.
Source Port	Port that was used to make the HTTP request.
Source IP Country	Country code of the HTTP request.
Destination IP	Public IP address of the destination requested.
Destination Port	Port of the destination requested.
Destination IP Country	Country code of the destination requested.
Blocked file reason	Reason why the file was blocked if a file transfer occurred or was attempted.
Category details	Category the blocked file belongs to.

File detection details

Field	Description
Name	Name of the detected file.
Type	File type of the detected file.
Size	Size of the detected file.
Hash	Hash of the detected file, generated by DLP.
Content type	MIME type of the detected file.
Direction	Upload or download direction of the detected file.
Action	The Action Gateway applied to the request.

Enhanced file detection

Enhanced file detection is an optional feature to extract more file information from HTTP traffic. When turned on, Gateway will read file information from the HTTP body rather than the HTTP headers to provide greater accuracy and reliability. This feature may have a minor impact on performance for file-heavy organizations.

To turn on enhanced file detection:

1. In Zero Trust ↗, go to Settings > Network.
2. In Firewall, turn on TLS decryption.
3. In Gateway Logging, turn on Enable enhanced file detection.

Isolate requests

When a user creates an isolation policy, Gateway logs the initial request that triggers isolation as an Isolate action. Because this request is not isolated yet, the is_isolated field will return false. Zero Trust then securely returns the result to the user in an isolated browser. Gateway will log all subsequent requests in the isolated browser with the action (such as Allow or Block), and the is_isolated field will return true.

Limitations

Gateway activity logs are not available in the dashboard if you turn on the Customer Metadata Boundary within Cloudflare Data Localization Suite (DLS). Enterprise users using CMB can still export logs via Logpush. For more information, refer to DLS product compatibility.