I've got an answer about how to use SocketAppender (I need it to gather logs from distributed system), but I am new to log4j and I have no idea how to use that sample code.
Probably I should have log4j-server.properties like that:
log4j.appender.SERVER=org.apache.log4j.net.SocketAppender
log4j.appender.SA.Port=4712
log4j.appender.SA.RemoteHost=loghost
log4j.appender.SA.ReconnectionDelay=10000
But I still don't know how to start the server (how to use this line)
org.apache.log4j.net.SimpleSocketServer 4712 log4j-server.properties
And what is the most important: Where\How can I see my logs?