Buenas
Ante todo deciros que mi fuerte no son las comunicaciones, así que no tengo mucha idea sobre ello.
Si este tema esta hablado, por favor, alguna referencia y disculpas.
Utlimamente estoy viendo en el log lo siguiente
System Log Date/Time Facility Severity Message Apr 23 15:56:26 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=38.100.25.135 DST=87.218.156.XXX LEN=60 TOS=0x00 PREC=0x00 TTL=252 ID=62749 DF PROTO=TCP SPT=47212 DPT=16176 WINDOW=5840 RES=0x00 SYN URGP=0 Apr 23 15:56:29 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=38.100.25.135 DST=87.218.156.XXX LEN=60 TOS=0x00 PREC=0x00 TTL=252 ID=62751 DF PROTO=TCP SPT=47212 DPT=16176 WINDOW=5840 RES=0x00 SYN URGP=0 Apr 23 15:56:47 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=38.100.25.135 DST=87.218.156.XXX LEN=60 TOS=0x00 PREC=0x00 TTL=252 ID=62755 DF PROTO=TCP SPT=47212 DPT=16176 WINDOW=5840 RES=0x00 SYN URGP=0 Apr 23 15:57:11 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=38.100.25.135 DST=87.218.156.XXX LEN=60 TOS=0x00 PREC=0x00 TTL=252 ID=62757 DF PROTO=TCP SPT=47212 DPT=16176 WINDOW=5840 RES=0x00 SYN URGP=0 Apr 23 15:57:21 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=204.214.92.10 DST=87.218.156.XXX LEN=XXX TOS=0x00 PREC=0x00 TTL=252 ID=47912 DF PROTO=TCP SPT=4552 DPT=135 WINDOW=65535 RES=0x00 SYN URGP=0 Apr 23 16:06:27 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=38.100.25.135 DST=87.218.156.XXX LEN=60 TOS=0x00 PREC=0x00 TTL=252 ID=38771 DF PROTO=TCP SPT=41452 DPT=16176 WINDOW=5840 RES=0x00 SYN URGP=0 Apr 23 16:17:09 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=85.255.117.90 DST=87.218.156.XXX LEN=60 TOS=0x00 PREC=0x00 TTL=252 ID=8732 DF PROTO=TCP SPT=55997 DPT=8469 WINDOW=5840 RES=0x00 SYN URGP=0 Apr 23 16:17:09 daemon crit pppd[427]: Clear IP addresses. Connection DOWN. Apr 23 16:17:09 daemon crit pppd[427]: Clear IP addresses. PPP connection DOWN. Apr 23 16:17:12 daemon crit pppd[427]: PPP server detected. Apr 23 16:17:12 daemon crit pppd[427]: PPP session established. Apr 23 16:17:15 daemon crit pppd[427]: PPP LCP UP. Apr 23 16:17:15 daemon crit pppd[427]: Received valid IP address from server. Connection UP. Apr 23 16:24:13 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=87.218.60.125 DST=87.218.156.XXX LEN=64 TOS=0x00 PREC=0x00 TTL=250 ID=33131 DF PROTO=TCP SPT=3579 DPT=445 WINDOW=53760 RES=0x00 SYN URGP=0 Apr 23 16:24:16 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=87.218.60.125 DST=87.218.156.XXX LEN=64 TOS=0x00 PREC=0x00 TTL=250 ID=33262 DF PROTO=TCP SPT=3579 DPT=445 WINDOW=53760 RES=0x00 SYN URGP=0 Apr 23 16:24:30 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=85.255.117.90 DST=87.218.156.XXX LEN=60 TOS=0x00 PREC=0x00 TTL=252 ID=12883 DF PROTO=TCP SPT=50464 DPT=8469 WINDOW=5840 RES=0x00 SYN URGP=0 Apr 23 16:24:33 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=85.255.117.90 DST=87.218.156.XXX LEN=60 TOS=0x00 PREC=0x00 TTL=252 ID=12885 DF PROTO=TCP SPT=50464 DPT=8469 WINDOW=5840 RES=0x00 SYN URGP=0 Apr 23 16:24:39 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=85.255.117.90 DST=87.218.156.XXX LEN=60 TOS=0x00 PREC=0x00 TTL=252 ID=12887 DF PROTO=TCP SPT=50464 DPT=8469 WINDOW=5840 RES=0x00 SYN URGP=0 Apr 23 16:34:50 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=85.255.117.90 DST=87.218.156.XXX LEN=60 TOS=0x00 PREC=0x00 TTL=252 ID=29874 DF PROTO=TCP SPT=60306 DPT=8469 WINDOW=5840 RES=0x00 SYN URGP=0 Apr 23 16:46:00 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=87.218.168.78 DST=87.218.156.XXX LEN=XXX TOS=0x00 PREC=0x00 TTL=251 ID=2942 DF PROTO=TCP SPT=2261 DPT=445 WINDOW=64240 RES=0x00 SYN URGP=0
¿Que me esta pasando?
Un Saludo