回答編集履歴
1
udp
test
CHANGED
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@@ -39,3 +39,43 @@
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39
39
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Ncat: Connection from 127.0.0.1:11111.
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40
40
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41
41
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```
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42
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+
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43
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+
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44
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+
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45
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----
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46
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+
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47
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+
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48
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+
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49
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あ、UDP でしたね。
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50
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+
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51
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52
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53
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```php
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54
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55
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<?php
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56
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57
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$socket = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
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58
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59
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socket_bind($socket, "0.0.0.0", 11111) or die();
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60
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61
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socket_sendto($socket, "123", 3, 0, "127.0.0.1", 22222);
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62
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63
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```
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64
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+
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65
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66
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67
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```
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68
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69
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$ sudo tcpdump -i lo -nn port 11111
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70
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71
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tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
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72
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73
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listening on lo, link-type EN10MB (Ethernet), capture size 65535 bytes
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74
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75
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76
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77
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19:50:53.201765 IP 127.0.0.1.11111 > 127.0.0.1.22222: UDP, length 3
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78
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+
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79
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```
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80
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+
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81
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+
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