Nginx log which upstream

How can I achieve that kind of logging? Improve this question. Add a comment. Active Oldest Votes. Improve this answer.

Thanks, and Thanks to M. I found multiple ressources about response body using lua which is not available on our server. I'm also wondering if there is any way to retrieve the upstream URL to which Nginx pass the request.

What OS flavor of linux are you running nginx on? Thanks for advices. I opened another separate question for this one: serverfault. Show 2 more comments. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. When processing of a request is completed, the message is written to the log that is configured on the current level, or inherited from the previous levels.

If one level defines multiple access logs, the message is written to all of them. Conditional logging allows excluding trivial or unimportant log entries from the access log.

Though many ciphers are declared insecure, older implementations still use them; ECC certificates offer greater performance than RSA, but not all clients can accept ECC. You can evaluate the SSL data obtained from the client and determine what proportion of clients get excluded if support for older SSL protocols and ciphers is removed.

The following configuration example logs the SSL protocol, cipher, and User-Agent header of any connected TLS client, assuming that each client selects the most recent protocol and most secure ciphers it supports. In this example, each client is identified by its unique combination of IP address and User-Agent. Define a key-value storage that will keep the IP address of the client and its User Agent, for example, clients :. Then you can check the logs to determine which clients are using these ciphers and then make a decision about removing these ciphers from the NGINX Plus configuration.

The syslog utility is a standard for computer message logging and allows collecting log messages from different devices on a single syslog server. A domain name or IP address can be specified with a port to override the default port, A UNIX-domain socket path can be specified after the unix: prefix:. The default value is local7. Other possible values are: auth , authpriv , daemon , cron , ftp , lpr , kern , mail , news , syslog , user , uucp , local Possible values in order of increasing severity are: debug , info , notice , warn , error default , crit , alert , and emerg.

Messages are logged at the specified level and all more severe levels. Enables session affinity, which causes requests from the same client to be passed to the same server in a group of servers.

Three methods are available:. When the cookie method is used, information about the designated server is passed in an HTTP cookie generated by nginx:. A request that comes from a client not yet bound to a particular server is passed to the server selected by the configured balancing method. Further requests with this cookie will be passed to the designated server.

If the designated server cannot process a request, the new server is selected as if the client has not been bound yet. The first parameter sets the name of the cookie to be set or inspected. When the route method is used, proxied server assigns client a route on receipt of the first request. All subsequent requests from this client will carry routing information in a cookie or URI. If the designated server cannot process a request, the new server is selected by the configured balancing method as if there is no routing information in the request.

The parameters of the route method specify variables that may contain routing information. The first non-empty variable is used to find the matching server. Otherwise, the route from the URI is used. When the learn method 1. Further requests with this cookie will be passed to the same server. If the server cannot process the request, the new server is selected as if the client has not been bound yet. The parameters create and lookup specify variables that indicate how new sessions are created and existing sessions are searched, respectively.

Both parameters may be specified more than once, in which case the first non-empty variable is used. Sessions are stored in a shared memory zone, whose name and size are configured by the zone parameter. One megabyte zone can store about sessions on the bit platform. The sessions that are not accessed during the time specified by the timeout parameter get removed from the zone. By default, timeout is set to 10 minutes. The header parameter 1. The sync parameter 1.

This directive is obsolete since version 1. An equivalent sticky directive with a new syntax should be used instead:. Learn 97 site reliability tips and best practices in this new O'Reilly ebook. Download for free at nginx. Syntax: server address [ parameters ]; Default: — Context: upstream. Syntax: zone name [ size ]; Default: — Context: upstream This directive appeared in version 1. Syntax: state file ; Default: — Context: upstream This directive appeared in version 1.

Syntax: hash key [ consistent ]; Default: — Context: upstream This directive appeared in version 1. Syntax: keepalive connections ; Default: — Context: upstream This directive appeared in version 1.