! ୮ଫአֵአTCPփᬌහഝጱײ҅හഝտᤩනفܐᦓ҅ྯӞտᤩ୮֢ӞԀྲᇙၞᭆفᗑᕶ҅ྯ
ӞտےଫጱḒ᮱TCPփ᭓ᕳIPጱහഝܔزฎTCPಸ҅IPփ᭓ᕳᗑᕶളݗጱහഝܔزݞIP
හഝಸ҅᭗ᬦզᗑփᬌጱྲᇙၞᑍԅ
UDPහഝӨTCPහഝӞᛘ҅ࠔӞጱӧݶᅩฎහഝḒ᮱ᤰጱฎUDPḒ᮱҅ᳩଶԅ8ᜓ҅UDPᕳ
IPփᬌጱฎUDPහഝಸ
හഝጱړአӨአ
! ୮ፓጱԆතکӞӻզᗑහഝ҅හഝতܐᦓӾኧବݻӤ܋҅ݶ݄ധݱ ܐᦓےӤ
ጱಸḒ᮱ྯܐᦓፋ᮷ᥝ݄༄ັಸḒ᮱Ӿጱܐᦓຽᦩ҅զᏟളතහഝጱ Ӥ ܐ ᦓ ᬯ ӻ
ᬦ ᑕ ᑍ ֢ ړ አ
ᒒݗݩ
! TCPUDPአ16bitጱᒒݗݩᬰᤈᦩڦଫአଧํӞԶᎣݷጱᒒݗݩ҅FTPጱTCPᒒݗݩ21҅ྯӞ
ӻTelnetଫጱTCPᒒݗݩฎ23҅TFTPଫጱUDPᒒݗݩฎ69҅ᎣݷጱᒒݗݩӞᛱՕԭ1-255ԏᳵ҅
256-1023ԏᳵԆᥝฎUnix๐ۓᬰᑕಅܛአ҅ԁᒒݗԆᥝړࣁ1024-5000ٌ҅՜כኸጱᒒݗݩฎ
ԭ5000ጱ
unixᔮᕹጱᒒݗݩכࣁ҈etc/servicesӾֵ҅አӞӥեݢզັᒒݗݩ
! grep “๐ۓե” ҈etc/services
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