Squid Timeout Configuration Explained

Connect_timeout

Official explanation: TCP's Build-time timeout

Applicable occasions: Squid back source and source station built-in timeout time, applicable to the return source direction.

Default configuration: Connect_timeout 1 minute

Request_timeout

Official explanation: The request time-out period after the connection is established.

Application scenario: After the client and squid are connected, squid determines the time-out of the client request, that is, how long squid has not read the data sent by the client to time out.

Default configuration: request_timeout 5 minutes

Read_timeout

Official explanation: Read data time-out, only valid for back-source interruption

Application scenario: Squid and the source station established a successful connection, and sent out the request data, read the source station sent back the response time-out.

Default configuration: Read_timeout minutes

Pconn_timeout

Official explanation: Idle connection hold Time

Application scenario: Squid and the source station established long connection, with the source station to maintain idle long connection time.

Default configuration: Pconn_timeout 1 minute

Persistent_request_timeout

Official explanation: Long connection waits for the next request to arrive time-out

Application Scenario: Squid establishes a long connection with the client, the current request processing ends, and the time-out waiting for the next request to arrive.

Dns_timeout

Official explanation: DNS Query time-out

Default configuration: Dns_timeout 2 minutes

Positive_dns_ttl

Official explanation: The correct DNS cache expiration time

Applicable scenario: The DNS cache expires with a smaller value that returns the TTL for the configuration item and DNS resolution, and the value cannot be less than Negative_dns_ttl

Default configuration: Positive_dns_ttl 6 hours

Negative_dns_ttl

Official explanation: Error DNS parsing cache time

Default configuration: Negative_dns_ttl 1 minute

This article is from the "Network Favorites" blog, so be sure to keep this source http://liyaoyi.blog.51cto.com/442933/1743906

Squid Timeout Configuration Explained