안녕Ȣ16;세요,

1200;lj16; 대Ȣ17;교 연구실에서 1068;1012; Ȣ16;고 1080;구요, 리눅스 서버 관리/모니터링에 대해서lj16; ,144;1032; 아무,163;도 모르lj16; 상태/196; 우ǥ16;투 서버를 Ȣ16;나 사용 1473;1077;니다.

그런데 0169;화ǣ17; /196;그를 한 번 살6196;봤더니 (cat /var/log/ufw.log) 아래처/100; 아1452; 1088;1452; /196;그가 기/197;1060; .104;고 1080;습니다.

1096; 모르1648;만, 뭔가 외ǥ12; IP에서 들Ǻ12;오lj16; 1217;속 시도를 차단했다lj16; /196;그 기/197;1064; ,163; 같기도 한데요, 0169;화ǣ17; /196;그가 1060;/111;,172; 나오lj16; ,172; 1068;0152;1201;1064; 1068;1068;까요?

(1200;7148; 서버 MAC 1452;소와 IP 1452;소lj16; XXX/196; 처리했습니다.)

감사합니다.

Jan 10 15:23:39 user kernel: [239616.624637] [UFW BLOCK] IN=enp96s0f0 OUT= MAC=xx:xx:xx:xx:xx:xx:78:48:59:dd:11:e9:08:00 SRC=143.198.62.134 DST=XXX.XXX.XXX.XXX LEN=60 TOS=0x00 PREC=0x00 TTL=51 ID=46444 DF PROTO=TCP SPT=55678 DPT=22 WINDOW=64240 RES=0x00 SYN URGP=0

Jan 10 15:23:41 user kernel: [239618.640652] [UFW BLOCK] IN=enp96s0f0 OUT= MAC=xx:xx:xx:xx:xx:xx:78:48:59:dd:11:e9:08:00 SRC=143.198.62.134 DST=XXX.XXX.XXX.XXX LEN=60 TOS=0x00 PREC=0x00 TTL=51 ID=46445 DF PROTO=TCP SPT=55678 DPT=22 WINDOW=64240 RES=0x00 SYN URGP=0

Jan 10 15:23:45 user kernel: [239622.832761] [UFW BLOCK] IN=enp96s0f0 OUT= MAC=xx:xx:xx:xx:xx:xx:78:48:59:dd:11:e9:08:00 SRC=143.198.62.134 DST=XXX.XXX.XXX.XXX LEN=60 TOS=0x00 PREC=0x00 TTL=51 ID=46446 DF PROTO=TCP SPT=55678 DPT=22 WINDOW=64240 RES=0x00 SYN URGP=0

Jan 10 15:24:40 user kernel: [239677.506502] [UFW BLOCK] IN=enp96s0f0 OUT= MAC=xx:xx:xx:xx:xx:xx:78:48:59:dd:11:e9:08:00 SRC=89.248.165.21 DST=XXX.XXX.XXX.XXX LEN=40 TOS=0x00 PREC=0x00 TTL=240 ID=50454 PROTO=TCP SPT=40513 DPT=23491 WINDOW=1024 RES=0x00 SYN URGP=0

Jan 10 15:25:39 user kernel: [239736.200768] [UFW BLOCK] IN=enp96s0f0 OUT= MAC=xx:xx:xx:xx:xx:xx:78:48:59:dd:11:e9:08:00 SRC=43.130.11.228 DST=XXX.XXX.XXX.XXX LEN=52 TOS=0x08 PREC=0x00 TTL=48 ID=34058 DF PROTO=TCP SPT=35082 DPT=9018 WINDOW=65535 RES=0x00 SYN URGP=0

Jan 10 15:26:24 user kernel: [239781.380069] [UFW BLOCK] IN=enp96s0f0 OUT= MAC=xx:xx:xx:xx:xx:xx:78:48:59:dd:11:e9:08:00 SRC=167.172.233.114 DST=XXX.XXX.XXX.XXX LEN=40 TOS=0x00 PREC=0x00 TTL=241 ID=12863 PROTO=TCP SPT=61953 DPT=8016 WINDOW=1024 RES=0x00 SYN URGP=0

Jan 10 15:27:00 user kernel: [239817.301302] [UFW BLOCK] IN=enp96s0f0 OUT= MAC=xx:xx:xx:xx:xx:xx:78:48:59:dd:11:e9:08:00 SRC=167.94.146.20 DST=XXX.XXX.XXX.XXX LEN=44 TOS=0x00 PREC=0x00 TTL=35 ID=56260 PROTO=TCP SPT=47994 DPT=34928 WINDOW=1024 RES=0x00 SYN URGP=0

Jan 10 15:28:59 user kernel: [239936.730381] [UFW BLOCK] IN=enp96s0f0 OUT= MAC=xx:xx:xx:xx:xx:xx:78:48:59:dd:11:e9:08:00 SRC=128.199.235.46 DST=XXX.XXX.XXX.XXX LEN=40 TOS=0x00 PREC=0x00 TTL=235 ID=55446 PROTO=TCP SPT=61953 DPT=8000 WINDOW=1024 RES=0x00 SYN URGP=0

Jan 10 15:29:03 user kernel: [239940.052877] [UFW BLOCK] IN=enp96s0f0 OUT= MAC=xx:xx:xx:xx:xx:xx:78:48:59:dd:11:e9:08:00 SRC=43.131.68.225 DST=XXX.XXX.XXX.XXX LEN=52 TOS=0x00 PREC=0x00 TTL=46 ID=49820 DF PROTO=TCP SPT=50844 DPT=2443 WINDOW=65535 RES=0x00 SYN URGP=0

Jan 10 15:29:03 user kernel: [239940.286641] [UFW BLOCK] IN=enp96s0f0 OUT= MAC=xx:xx:xx:xx:xx:xx:78:48:59:dd:11:e9:08:00 SRC=167.248.133.27 DST=XXX.XXX.XXX.XXX LEN=44 TOS=0x08 PREC=0x00 TTL=30 ID=30955 PROTO=TCP SPT=55907 DPT=5985 WINDOW=1024 RES=0x00 SYN URGP=0