lsof 결과의 이름 열 아래에 있는 포트 매핑 문자열을 해석하는 방법은 무엇입니까?

나는 다음과 같은 출력을 가지고 있습니다lsof -i:portnumber

[ztao@MongoDB ~]$ lsof -i:6379
COMMAND    PID USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
redis-ser 5341 ztao    4u  IPv6  23457      0t0  TCP *:6379 (LISTEN)
redis-ser 5341 ztao    5u  IPv4  23459      0t0  TCP *:6379 (LISTEN)
redis-ser 5341 ztao    6u  IPv4  23533      0t0  TCP localhost:6379->localhost:6633 (ESTABLISHED)
redis-ser 5341 ztao    7u  IPv4  23535      0t0  TCP localhost:6379->localhost:6634 (ESTABLISHED)
redis-ser 5341 ztao    8u  IPv4  23538      0t0  TCP localhost:6379->localhost:6635 (ESTABLISHED)
redis-ser 5341 ztao    9u  IPv4  23540      0t0  TCP localhost:6379->localhost:6636 (ESTABLISHED)
redis-ser 5341 ztao   10u  IPv4  23839      0t0  TCP localhost:6379->localhost:6747 (ESTABLISHED)
redis-ser 5341 ztao   11u  IPv4  23842      0t0  TCP localhost:6379->localhost:6748 (ESTABLISHED)
newsProvi 5349 ztao    6u  IPv4  23530      0t0  TCP localhost:6633->localhost:6379 (ESTABLISHED)
newsProvi 5349 ztao    7u  IPv4  23532      0t0  TCP localhost:6634->localhost:6379 (ESTABLISHED)
newsProvi 5349 ztao    8u  IPv4  23536      0t0  TCP localhost:6635->localhost:6379 (ESTABLISHED)
newsProvi 5349 ztao    9u  IPv4  23539      0t0  TCP localhost:6636->localhost:6379 (ESTABLISHED)
newsDistr 5456 ztao   12u  IPv4  23838      0t0  TCP localhost:6747->localhost:6379 (ESTABLISHED)
newsDistr 5456 ztao   13u  IPv4  23841      0t0  TCP localhost:6748->localhost:6379 (ESTABLISHED)

localhost:6379->localhost:6633 (ESTABLISHED)이것이 무엇을 의미하는지 이해할 수 없습니다 . 검색을 시도했지만 답변을 찾을 수 없습니다. 이것은 확실히 아주 기본적인 지식이지만, 저는 초보이고 잘 모르겠습니다. 도움이 필요하세요?