변군이글루

[named] recursive clients 본문

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[named] recursive clients

변군 변군이글루 2013.06.17 22:47

recursive clients 개수

# rndc status | grep recursive
recursive clients: 6/10000

// recursive clients 수가 200이상 증가 시,
// 외부 통신이 불가능한 상황이 발생한다.

# rndc recursing
// 현재 외부 질의를 하고 있는 퀴리를 수집

# vi /var/named/named.recursing (recursing queries 로그 확인)
-----------------------------------------------------------------
;
; Recursing Queries
;
; client 152.149.80.2#35056: '118.220.172.71.co.kr' requesttime 1245718851
; client 152.149.73.143#49185: 'grafjasqq.ru' requesttime 1245718858
; client 152.149.73.143#49185: 'grafjasqq.ru' requesttime 1245718862
; client 152.149.80.2#35151: '118.220.172.71.co.kr' requesttime 1245718869
; client 152.149.73.143#49686: 'grafjasqq.ru' requesttime 1245718875
; Dump complete
~
-----------------------------------------------------------------

// blackhole에 IP 등록

# vi /etc/named.conf
-----------------------------------------------------------------
options {
        blackhole {131.123.123.19;};
};
-----------------------------------------------------------------

# rndc relocad

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