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  1. #1
    rlucatto
    amigos bom dia
    resente mente instalei m firewall linux redhat 8
    essa semana duas ou trez vesez tive um log estranho nao entendi alguem poderia me ajudar
    obrigado
    ####
    Mar 27 04:02:08 net syslogd 1.4.1: restart.

    Mar 27 04:05:18 net kernel: smtpIN=lo OUT= MAC=00:00:00:00:00:00:00:00:00:00:00:00:08:00 SRC=127.0.0.1 DST=127.0.0.1 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=63747 DF PROTO=TCP SPT=2636 DPT=25 WINDOW=32767 RES=0x00 SYN URGP=0

    Mar 27 04:05:18 net kernel: smtpIN=lo OUT= MAC=00:00:00:00:00:00:00:00:00:00:00:00:08:00 SRC=127.0.0.1 DST=127.0.0.1 LEN=52 TOS=0x00 PREC=0x00 TTL=64 ID=63748 DF PROTO=TCP SPT=2636 DPT=25 WINDOW=32767 RES=0x00 ACK URGP=0

    Mar 27 04:05:18 net kernel: smtpIN=lo OUT= MAC=00:00:00:00:00:00:00:00:00:00:00:00:08:00 SRC=127.0.0.1 DST=127.0.0.1 LEN=52 TOS=0x00 PREC=0x00 TTL=64 ID=63749 DF PROTO=TCP SPT=2636 DPT=25 WINDOW=32767 RES=0x00 ACK URGP=0

    Mar 27 04:05:18 net kernel: smtpIN=lo OUT= MAC=00:00:00:00:00:00:00:00:00:00:00:00:08:00 SRC=127.0.0.1 DST=127.0.0.1 LEN=79 TOS=0x00 PREC=0x00 TTL=64 ID=63750 DF PROTO=TCP SPT=2636 DPT=25 WINDOW=32767 RES=0x00 ACK PSH URGP=0

    Mar 27 04:05:18 net kernel: smtpIN=lo OUT= MAC=00:00:00:00:00:00:00:00:00:00:00:00:08:00 SRC=127.0.0.1 DST=127.0.0.1 LEN=100 TOS=0x00 PREC=0x00 TTL=64 ID=63751 DF PROTO=TCP SPT=2636 DPT=25 WINDOW=32767 RES=0x00 ACK PSH URGP=0

    Mar 27 04:05:18 net kernel: smtpIN=lo OUT= MAC=00:00:00:00:00:00:00:00:00:00:00:00:08:00 SRC=127.0.0.1 DST=127.0.0.1 LEN=95 TOS=0x00 PREC=0x00 TTL=64 ID=63752 DF PROTO=TCP SPT=2636 DPT=25 WINDOW=32767 RES=0x00 ACK PSH URGP=0

    Mar 27 04:05:19 net kernel: smtpIN=lo OUT= MAC=00:00:00:00:00:00:00:00:00:00:00:00:08:00 SRC=127.0.0.1 DST=127.0.0.1 LEN=809 TOS=0x00 PREC=0x00 TTL=64 ID=63753 DF PROTO=TCP SPT=2636 DPT=25 WINDOW=32767 RES=0x00 ACK PSH URGP=0

    Mar 27 04:05:19 net kernel: smtpIN=lo OUT= MAC=00:00:00:00:00:00:00:00:00:00:00:00:08:00 SRC=127.0.0.1 DST=127.0.0.1 LEN=55 TOS=0x00 PREC=0x00 TTL=64 ID=63754 DF PROTO=TCP SPT=2636 DPT=25 WINDOW=32767 RES=0x00 ACK PSH URGP=0

    Mar 27 04:05:19 net kernel: smtpIN=lo OUT= MAC=00:00:00:00:00:00:00:00:00:00:00:00:08:00 SRC=127.0.0.1 DST=127.0.0.1 LEN=52 TOS=0x00 PREC=0x00 TTL=64 ID=63755 DF PROTO=TCP SPT=2636 DPT=25 WINDOW=32767 RES=0x00 ACK URGP=0

    Mar 27 04:05:19 net kernel: smtpIN=lo OUT= MAC=00:00:00:00:00:00:00:00:00:00:00:00:08:00 SRC=127.0.0.1 DST=127.0.0.1 LEN=58 TOS=0x00 PREC=0x00 TTL=64 ID=63756 DF PROTO=TCP SPT=2636 DPT=25 WINDOW=32767 RES=0x00 ACK PSH URGP=0

    Mar 27 04:05:19 net kernel: smtpIN=lo OUT= MAC=00:00:00:00:00:00:00:00:00:00:00:00:08:00 SRC=127.0.0.1 DST=127.0.0.1 LEN=52 TOS=0x00 PREC=0x00 TTL=64 ID=63757 DF PROTO=TCP SPT=2636 DPT=25 WINDOW=32767 RES=0x00 ACK URGP=0

    Mar 27 04:05:19 net kernel: smtpIN=lo OUT= MAC=00:00:00:00:00:00:00:00:00:00:00:00:08:00 SRC=127.0.0.1 DST=127.0.0.1 LEN=52 TOS=0x00 PREC=0x00 TTL=64 ID=63758 DF PROTO=TCP SPT=2636 DPT=25 WINDOW=32767 RES=0x00 ACK FIN URGP=0




  2. #2
    Danilo_Montagna
    aparentemente é algum processo que seu servidor de mail esta fazendo... pela interface loopback... ou seja.. esse servidor deve esatr instalado na maquina firewall.. e vc deve estar logando o trafego loopback tb,,



  3. #3
    rlucatto
    estranho que nao estou fazendo log do loopback



  4. #4
    Danilo_Montagna
    bom.. mais com certeza vc tem alguma regra com esse log-prefix

    kernel: smtpIN

    talvez ele loga como loopbakc pelo fato do processo ser local..

    mais o log é de smtpIN






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