侦测指定IP/域名的端口

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#  侦测指定IP/域名的端口

[root@ec-k8s-m1 ~]$ nmap www.baidu.com

Starting Nmap 6.40 ( http://nmap.org ) at 2018-11-21 10:30 CST
Nmap scan report for www.baidu.com (14.215.177.38)
Host is up (0.0072s latency).
Other addresses for www.baidu.com (not scanned): 14.215.177.39
Not shown: 998 filtered ports
PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https

Nmap done: 1 IP address (1 host up) scanned in 4.50 seconds

侦测指定网段

[root@ec-k8s-m1 ~]# nmap 172.16.0.1-100

Starting Nmap 6.40 ( http://nmap.org ) at 2018-11-21 11:18 CST
Nmap scan report for ec-k8s-m2 (172.16.0.52)
Host is up (0.00015s latency).
Not shown: 998 closed ports
PORT    STATE SERVICE
22/tcp  open  ssh
179/tcp open  bgp
MAC Address: 08:00:27:D6:EE:46 (Cadmus Computer Systems)

Nmap scan report for ec-k8s-n1 (172.16.0.61)
Host is up (0.00024s latency).
Not shown: 996 closed ports
PORT     STATE SERVICE
22/tcp   open  ssh
53/tcp   open  domain
179/tcp  open  bgp
6789/tcp open  ibm-db2-admin
MAC Address: 08:00:27:73:C2:97 (Cadmus Computer Systems)

Nmap scan report for ec-k8s-n2 (172.16.0.62)
Host is up (0.00024s latency).
Not shown: 995 closed ports
PORT     STATE SERVICE
22/tcp   open  ssh
53/tcp   open  domain
111/tcp  open  rpcbind
179/tcp  open  bgp
6789/tcp open  ibm-db2-admin
MAC Address: 08:00:27:C0:E0:5B (Cadmus Computer Systems)

Nmap scan report for ec-k8s-n3 (172.16.0.63)
Host is up (0.00058s latency).
Not shown: 997 closed ports
PORT    STATE SERVICE
22/tcp  open  ssh
111/tcp open  rpcbind
179/tcp open  bgp
MAC Address: 08:00:27:78:D9:B5 (Cadmus Computer Systems)

Nmap scan report for ec-k8s-n4 (172.16.0.64)
Host is up (0.00060s latency).
Not shown: 998 closed ports
PORT    STATE SERVICE
22/tcp  open  ssh
179/tcp open  bgp
MAC Address: 08:00:27:7F:6E:0A (Cadmus Computer Systems)

Nmap scan report for ec-k8s-m1 (172.16.0.51)
Host is up (0.000027s latency).
Not shown: 997 closed ports
PORT     STATE SERVICE
22/tcp   open  ssh
179/tcp  open  bgp
6789/tcp open  ibm-db2-admin

sendto in send_ip_packet_sd: sendto(5, packet, 44, 0, 172.16.0.96, 16) => Operation not permitted
Offending packet: TCP 172.16.0.96:59885 > 172.16.0.96:80 S ttl=47 id=37962 iplen=44  seq=325954690 win=1024 <mss 1460>
Nmap scan report for 172.16.0.96
Host is up (0.000022s latency).
Not shown: 997 closed ports
PORT    STATE    SERVICE
22/tcp  open     ssh
80/tcp  filtered http
179/tcp open     bgp

Nmap done: 100 IP addresses (7 hosts up) scanned in 1.69 seconds

##
#  以 ping 的方式进行扫描

[root@ec-k8s-m1 ~]# nmap -sP 172.16.0.1-254

Starting Nmap 6.40 ( http://nmap.org ) at 2018-11-21 11:17 CST
Nmap scan report for ec-k8s-m2 (172.16.0.52)
Host is up (0.00033s latency).
MAC Address: 08:00:27:D6:EE:46 (Cadmus Computer Systems)
Nmap scan report for ec-k8s-n1 (172.16.0.61)
Host is up (0.00025s latency).
MAC Address: 08:00:27:73:C2:97 (Cadmus Computer Systems)
Nmap scan report for ec-k8s-n2 (172.16.0.62)
Host is up (0.00022s latency).
MAC Address: 08:00:27:C0:E0:5B (Cadmus Computer Systems)
Nmap scan report for ec-k8s-n3 (172.16.0.63)
Host is up (0.00068s latency).
MAC Address: 08:00:27:78:D9:B5 (Cadmus Computer Systems)
Nmap scan report for ec-k8s-n4 (172.16.0.64)
Host is up (0.00066s latency).
MAC Address: 08:00:27:7F:6E:0A (Cadmus Computer Systems)
Nmap scan report for 172.16.0.110
Host is up (0.00012s latency).
MAC Address: 6C:3B:E5:3C:DE:0F (Hewlett Packard)
Nmap scan report for 172.16.0.112
Host is up (0.00039s latency).
MAC Address: F4:8E:38:AD:CB:B4 (Unknown)
Nmap scan report for 172.16.0.132
Host is up (0.00016s latency).
MAC Address: F4:8E:38:AB:B7:B3 (Unknown)
Nmap scan report for 172.16.0.134
Host is up (0.00060s latency).
MAC Address: 00:E0:4C:36:09:2D (Realtek Semiconductor)
Nmap scan report for 172.16.0.200
Host is up (0.00075s latency).
MAC Address: 08:00:27:78:D9:B5 (Cadmus Computer Systems)
Nmap scan report for ec-k8s-m1 (172.16.0.51)
Host is up.
Nmap scan report for 172.16.0.96
Host is up.
Nmap done: 254 IP addresses (12 hosts up) scanned in 2.13 seconds

nmap –help

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#  
[root@ec-k8s-m1 ~]$ nmap --help
Nmap 6.40 ( http://nmap.org )
Usage: nmap [Scan Type(s)] [Options] {target specification}
TARGET SPECIFICATION:
  Can pass hostnames, IP addresses, networks, etc.
  Ex: scanme.nmap.org, microsoft.com/24, 192.168.0.1; 10.0.0-255.1-254
  -iL <inputfilename>: Input from list of hosts/networks
  -iR <num hosts>: Choose random targets
  --exclude <host1[,host2][,host3],...>: Exclude hosts/networks
  --excludefile <exclude_file>: Exclude list from file
HOST DISCOVERY:
  -sL: List Scan - simply list targets to scan
  -sn: Ping Scan - disable port scan
  -Pn: Treat all hosts as online -- skip host discovery
  -PS/PA/PU/PY[portlist]: TCP SYN/ACK, UDP or SCTP discovery to given ports
  -PE/PP/PM: ICMP echo, timestamp, and netmask request discovery probes
  -PO[protocol list]: IP Protocol Ping
  -n/-R: Never do DNS resolution/Always resolve [default: sometimes]
  --dns-servers <serv1[,serv2],...>: Specify custom DNS servers
  --system-dns: Use OS's DNS resolver
  --traceroute: Trace hop path to each host
SCAN TECHNIQUES:
  -sS/sT/sA/sW/sM: TCP SYN/Connect()/ACK/Window/Maimon scans
  -sU: UDP Scan
  -sN/sF/sX: TCP Null, FIN, and Xmas scans
  --scanflags <flags>: Customize TCP scan flags
  -sI <zombie host[:probeport]>: Idle scan
  -sY/sZ: SCTP INIT/COOKIE-ECHO scans
  -sO: IP protocol scan
  -b <FTP relay host>: FTP bounce scan
PORT SPECIFICATION AND SCAN ORDER:
  -p <port ranges>: Only scan specified ports
    Ex: -p22; -p1-65535; -p U:53,111,137,T:21-25,80,139,8080,S:9
  -F: Fast mode - Scan fewer ports than the default scan
  -r: Scan ports consecutively - don't randomize
  --top-ports <number>: Scan <number> most common ports
  --port-ratio <ratio>: Scan ports more common than <ratio>
SERVICE/VERSION DETECTION:
  -sV: Probe open ports to determine service/version info
  --version-intensity <level>: Set from 0 (light) to 9 (try all probes)
  --version-light: Limit to most likely probes (intensity 2)
  --version-all: Try every single probe (intensity 9)
  --version-trace: Show detailed version scan activity (for debugging)
SCRIPT SCAN:
  -sC: equivalent to --script=default
  --script=<Lua scripts>: <Lua scripts> is a comma separated list of 
           directories, script-files or script-categories
  --script-args=<n1=v1,[n2=v2,...]>: provide arguments to scripts
  --script-args-file=filename: provide NSE script args in a file
  --script-trace: Show all data sent and received
  --script-updatedb: Update the script database.
  --script-help=<Lua scripts>: Show help about scripts.
           <Lua scripts> is a comma separted list of script-files or
           script-categories.
OS DETECTION:
  -O: Enable OS detection
  --osscan-limit: Limit OS detection to promising targets
  --osscan-guess: Guess OS more aggressively
TIMING AND PERFORMANCE:
  Options which take <time> are in seconds, or append 'ms' (milliseconds),
  's' (seconds), 'm' (minutes), or 'h' (hours) to the value (e.g. 30m).
  -T<0-5>: Set timing template (higher is faster)
  --min-hostgroup/max-hostgroup <size>: Parallel host scan group sizes
  --min-parallelism/max-parallelism <numprobes>: Probe parallelization
  --min-rtt-timeout/max-rtt-timeout/initial-rtt-timeout <time>: Specifies
      probe round trip time.
  --max-retries <tries>: Caps number of port scan probe retransmissions.
  --host-timeout <time>: Give up on target after this long
  --scan-delay/--max-scan-delay <time>: Adjust delay between probes
  --min-rate <number>: Send packets no slower than <number> per second
  --max-rate <number>: Send packets no faster than <number> per second
FIREWALL/IDS EVASION AND SPOOFING:
  -f; --mtu <val>: fragment packets (optionally w/given MTU)
  -D <decoy1,decoy2[,ME],...>: Cloak a scan with decoys
  -S <IP_Address>: Spoof source address
  -e <iface>: Use specified interface
  -g/--source-port <portnum>: Use given port number
  --data-length <num>: Append random data to sent packets
  --ip-options <options>: Send packets with specified ip options
  --ttl <val>: Set IP time-to-live field
  --spoof-mac <mac address/prefix/vendor name>: Spoof your MAC address
  --badsum: Send packets with a bogus TCP/UDP/SCTP checksum
OUTPUT:
  -oN/-oX/-oS/-oG <file>: Output scan in normal, XML, s|<rIpt kIddi3,
     and Grepable format, respectively, to the given filename.
  -oA <basename>: Output in the three major formats at once
  -v: Increase verbosity level (use -vv or more for greater effect)
  -d: Increase debugging level (use -dd or more for greater effect)
  --reason: Display the reason a port is in a particular state
  --open: Only show open (or possibly open) ports
  --packet-trace: Show all packets sent and received
  --iflist: Print host interfaces and routes (for debugging)
  --log-errors: Log errors/warnings to the normal-format output file
  --append-output: Append to rather than clobber specified output files
  --resume <filename>: Resume an aborted scan
  --stylesheet <path/URL>: XSL stylesheet to transform XML output to HTML
  --webxml: Reference stylesheet from Nmap.Org for more portable XML
  --no-stylesheet: Prevent associating of XSL stylesheet w/XML output
MISC:
  -6: Enable IPv6 scanning
  -A: Enable OS detection, version detection, script scanning, and traceroute
  --datadir <dirname>: Specify custom Nmap data file location
  --send-eth/--send-ip: Send using raw ethernet frames or IP packets
  --privileged: Assume that the user is fully privileged
  --unprivileged: Assume the user lacks raw socket privileges
  -V: Print version number
  -h: Print this help summary page.
EXAMPLES:
  nmap -v -A scanme.nmap.org
  nmap -v -sn 192.168.0.0/16 10.0.0.0/8
  nmap -v -iR 10000 -Pn -p 80
SEE THE MAN PAGE (http://nmap.org/book/man.html) FOR MORE OPTIONS AND EXAMPLES