setacl(1)

╖┴╝░

╡í╟╜└Γ╠└

-s ѬÑ╫Ñ╖ÑτÑ≤ñ╧íóACL ñ≥Ñ│Ñ▐Ñ≤Ñ╔╣╘ñ╟╗╪─Ωñ╡ñ∞ñ┐Ñ¿Ñ≤Ñ╚ÑΩñ╦└▀─Ωñ╖ñ▐ñ╣íú-f ѬÑ╫Ñ╖ÑτÑ≤ñ╧íóACL ñ≥Ñ╒ÑíÑñÑδ acl_file ñ╦┤▐ñ▐ñ∞ñ╞ñññδÑ¿Ñ≤Ñ╚ÑΩñ╦└▀─Ωñ╖ñ▐ñ╣íú-d ѬÑ╫Ñ╖ÑτÑ≤ñ╧íóÑ╒ÑíÑñÑδñ╬ ACL ñ½ñΘ 1 ñ─░╩╛σñ╬╗╪─Ωñ╡ñ∞ñ┐Ñ¿Ñ≤Ñ╚ÑΩñ≥║∩╜ⁿñ╖ñ▐ñ╣íú-m ѬÑ╫Ñ╖ÑτÑ≤ñ╧íó1 ñ─░╩╛σñ╬╗╪─Ωñ╡ñ∞ñ┐ ACL Ñ¿Ñ≤Ñ╚ÑΩñ≥─╔▓├ñ▐ñ┐ñ╧╩╤╣╣ñ╖ñ▐ñ╣íú

-síó-míó-díóñ▐ñ┐ñ╧ -fñ╬ñªñ┴íóñññ║ñ∞ñ½ñ╬ѬÑ╫Ñ╖ÑτÑ≤ñ≥╔¼ñ║╗╪─Ωñ╖ñ╞ñ»ñ└ñ╡ññíú-s ñ▐ñ┐ñ╧ -f ñ≥╗╪─Ωñ╣ñδñ╚íó┬╛ñ╬ѬÑ╫Ñ╖ÑτÑ≤ñ╧╠╡╕·ñ╦ñ╩ñΩñ▐ñ╣íú-m ñ╚ -d ñ╬ѬÑ╫Ñ╖ÑτÑ≤ñ╧┴╚ñ▀╣τñ∩ñ╗ñδñ│ñ╚ñ¼ñ╟ñ¡ñ▐ñ╣íú

-m ѬÑ╫Ñ╖ÑτÑ≤ñ╚ -s ѬÑ╫Ñ╖ÑτÑ≤ñ╟ñ╧íóacl_entries ñ╧╝íñ╬ÑΩÑ╣Ñ╚ñ½ñΘ┴¬┬≥ñ╡ñ∞ñ┐ 1 ñ─░╩╛σñ╬Ñ│Ñ≤Ñ▐ñ╟╢Φ└┌ñΘñ∞ñ┐ ACL Ñ¿Ñ≤Ñ╚ÑΩñ╟ñ╣íú-f ѬÑ╫Ñ╖ÑτÑ≤ñ╟ñ╧íóacl_file ñ╧íó╞▒ñ╕ÑΩÑ╣Ñ╚ñ½ñΘ┴¬┬≥ñ╡ñ∞ñ┐ ACL Ñ¿Ñ≤Ñ╚ÑΩñ≥ 1 ╣╘ñ╦ 1 ñ─ñ║ñ─┤▐ñ≤ñ└ñΓñ╬ñ╟ñ╩ñ»ñ╞ñ╧ñ╩ñΩñ▐ñ╗ñ≤íú╛╩╬¼╗■Ñ¿Ñ≤Ñ╚ÑΩñ╧Ñ╟ÑúÑ∞Ñ»Ñ╚ÑΩñ╦┤╪ñ╖ñ╞ñ╬ñ▀╗╪─Ωñ╟ñ¡ñ▐ñ╣íú┬└╗·┬╬ñ╬╩╕╗·ñ╧íó╩╕╗·ñ≥ñ╜ñ╬ñ╚ñ¬ñΩñ╦╞■╬╧ñ╖ñ╩ñ»ñ╞ñ╧ñ╩ñΘñ╩ñññ│ñ╚ñ≥╝¿ñ╖íó┬τ│τ╕╠ñ╧╟ñ░╒ñ╟╞■╬╧ñ╣ñδ╩╕╗·ñ≥╝¿ñ╖íóÑñÑ┐ÑΩÑ├Ñ»┬╬ñ╬╩╕╗·ñ╧ѵí╝Ñ╢ñ¼╗╪─Ωñ╣ñδ╩╕╗·ñ╟ñ╣íú

 
   u[ser]::operm | perm 
   u[ser]:uid:operm | perm 
   g[roup]::operm | perm 
   g[roup]:gid:operm | perm 
   c[lass]:operm | perm 
   o[ther]:operm | perm 
   d[efault]:u[ser]::operm | perm 
   d[efault]:u[ser]:uid:operm | perm 
   d[efault]:g[roup]::operm | perm 
   d[efault]:g[roup]:gid:operm | perm 
   d[efault]:c[lass]:operm | perm 
   d[efault]:o[ther]:operm | perm 

-d ѬÑ╫Ñ╖ÑτÑ≤ñ╟ñ╧íóacl_entries ñ╧íó╝íñ╬ÑΩÑ╣Ñ╚ñ½ñΘ┴¬┬≥ñ╡ñ∞ñ┐íó1 ñ─░╩╛σñ╬Ñ│Ñ≤Ñ▐ñ╟╢Φ└┌ñΘñ∞ñ┐╡÷▓─ñ╩ñ╖ñ╬ ACL Ñ¿Ñ≤Ñ╚ÑΩñ╟ñ╣íú

 
   u[ser]:uid 
   g[roup]:gid 
   d[efault]:u[ser]: 
   d[efault]:u[ser]:uid 
   d[efault]:g[roup]: 
   d[efault]:g[roup]:gid 
   d[efault]:c[lass]: 
   d[efault]:o[ther]: 

╛σñ╬ÑΩÑ╣Ñ╚ñ╟íóѵí╝Ñ╢ñ╧╝íñ╬╣α╠▄ñ≥╗╪─Ωñ╖ñ▐ñ╣íú

perm

╩╕╗·``r''(╞╔ñ▀╣■ñ▀)íó``w''(╜±ñ¡╣■ñ▀)íóñ¬ñΦñ╙``x''(╝┬╣╘)ñ≥╟ñ░╒ñ╬╜τ╜°ñ╟ 1 ▓≤ñ║ñ─╗╪─Ωñ╖ñ┐╡÷▓─╩╕╗·╬≤íúÑ╫Ñ∞í╝Ñ╣Ñ█ÑδÑ└ñ╚ñ╖ñ╞╩╕╗· - ñ≥╗╚═╤ñ╟ñ¡ñ▐ñ╣íú

operm

╛σ╡¡ñ╬╡÷▓─ñ╬ 8 ┐╩╔╜╕╜íú7 ñ╧ñ╣ñ┘ñ╞ñ╬╡÷▓─íóñ╣ñ╩ñ∩ñ┴ rwx ñ≥╔╜ñ╖íó0 ñ╧╡÷▓─ñ╩ñ╖íóñ╣ñ╩ñ∩ñ┴ --- ñ≥╔╜ñ╖ñ▐ñ╣íú

uid

ÑφÑ░ÑñÑ≤╠╛ñ▐ñ┐ñ╧ѵí╝Ñ╢ IDíú

gid

Ñ░Ñδí╝Ñ╫╠╛ñ▐ñ┐ñ╧Ñ░Ñδí╝Ñ╫ IDíú

╝íñ╦│╞ѬÑ╫Ñ╖ÑτÑ≤ñ╬░╒╠úñ≥╝¿ñ╖ñ▐ñ╣íú

-r

─╔▓├ñ╡ñ∞ñδ ACL Ñ¿Ñ≤Ñ╚ÑΩñ╬╡÷▓─ñ¼╝┬║▌ñ╦═┐ñ¿ñΘñ∞ñδñΦñªñ╦íóÑ░Ñδí╝Ñ╫Ñ»ÑΘÑ╣Ñ¿Ñ≤Ñ╚ÑΩñ╬║╞╖╫╗╗ñ≥╣╘ñññ▐ñ╣íú-r ѬÑ╫Ñ╖ÑτÑ≤ñ≥╗╪─Ωñ╣ñδñ╚íó``class''Ñ¿Ñ≤Ñ╚ÑΩñ╟╗╪─Ωñ╖ñ┐├═ñ╧╠╡╗δñ╡ñ∞ñ▐ñ╣íú

-s

Ñ╒ÑíÑñÑδñ╬ ACL ñ≥└▀─Ωñ╖ñ▐ñ╣íúñ╣ñ┘ñ╞ñ╬╕┼ññ ACL Ñ¿Ñ≤Ñ╚ÑΩñ╧║∩╜ⁿñ╡ñ∞íó┐╖ñ╖ñ»╗╪─Ωñ╡ñ∞ñ┐ ACL ñ╟├╓ñ¡┤╣ñ¿ñΘñ∞ñ▐ñ╣íúÑ╒ÑíÑñÑδñ╬╜Ω═¡╝╘ñ╦ñ─ñññ╞ 1 ñ─ñ╬``group''Ñ¿Ñ≤Ñ╚ÑΩíóÑ╒ÑíÑñÑδñ≥╜Ω═¡ñ╣ñδÑ░Ñδí╝Ñ╫ñ╦ñ─ñññ╞ 1 ñ─ñ╬``class''Ñ¿Ñ≤Ñ╚ÑΩíóñ¬ñΦñ╙ 1 ñ─ñ╬``other''Ñ¿Ñ≤Ñ╚ÑΩñ¼╗╪─Ωñ╡ñ∞ñ╩ñ»ñ╞ñ╧ñ╩ñΩñ▐ñ╗ñ≤íú─╔▓├ñ╬``user''ACL Ñ¿Ñ≤Ñ╚ÑΩñ╚─╔▓├ñ╬``group''ACL Ñ¿Ñ≤Ñ╚ÑΩñ≥╗╪─Ωñ╣ñδñ│ñ╚ñ¼ñ╟ñ¡ñ▐ñ╣ñ¼íó╞▒ñ╕ uid ñ≥╗²ñ─``user''ACL Ñ¿Ñ≤Ñ╚ÑΩñΣíó╞▒ñ╕ gid ñ≥╗²ñ─``group''ACL Ñ¿Ñ≤Ñ╚ÑΩñ¼╜┼╩úñ╖ñ╞ñññ╞ñ╧ñ╩ñΩñ▐ñ╗ñ≤íúÑ╒ÑíÑñÑδñ¼Ñ╟ÑúÑ∞Ñ»Ñ╚ÑΩñ╟ñóñδ╛∞╣τñ╧íó╛╩╬¼╗■ ACL Ñ¿Ñ≤Ñ╚ÑΩñ≥╗╪─Ωñ╟ñ¡ñ▐ñ╣íúÑ╒ÑíÑñÑδñ╬╜Ω═¡╝╘ñ╦ñ─ñññ╞ñ┐ñ½ñ└ñ½ 1 ñ─ñ╬╛╩╬¼╗■ñ╬``user''Ñ¿Ñ≤Ñ╚ÑΩñ≥íóÑ╒ÑíÑñÑδñ≥╜Ω═¡ñ╣ñδÑ░Ñδí╝Ñ╫ñ╦ñ─ñññ╞ 1 ñ─ñ╬╛╩╬¼╗■ñ╬``group''Ñ¿Ñ≤Ñ╚ÑΩñ≥íóÑ╒ÑíÑñÑδÑ░Ñδí╝Ñ╫Ñ»ÑΘÑ╣ñ╦ñ─ñññ╞ 1 ñ─ñ╬╛╩╬¼╗■ñ╬``class''Ñ¿Ñ≤Ñ╚ÑΩñ≥íóñ¬ñΦñ╙ñ╜ñ╬┬╛ñ╦ 1 ñ─ñ╬╛╩╬¼╗■ñ╬``other''Ñ¿Ñ≤Ñ╚ÑΩñ≥╗╪─Ωñ╟ñ¡ñ▐ñ╣íú─╔▓├ñ╬╛╩╬¼╗■``user''Ñ¿Ñ≤Ñ╚ÑΩñ╚─╔▓├ñ╬╛╩╬¼╗■``group''Ñ¿Ñ≤Ñ╚ÑΩñ≥╗╪─Ωñ╣ñδñ│ñ╚ñΓñ╟ñ¡ñ▐ñ╣ñ¼íó╞▒ñ╕ uid ñ≥╗²ñ─╛╩╬¼╗■``user''Ñ¿Ñ≤Ñ╚ÑΩñΣíó╞▒ñ╕ gid ñ≥╗²ñ─╛╩╬¼╗■``group''Ñ¿Ñ≤Ñ╚ÑΩñ¼╜┼╩úñ╖ñ╞ñññ╞ñ╧ñ╩ñΩñ▐ñ╗ñ≤íú╡÷▓─ñ¼ñ╩ññÑ¿Ñ≤Ñ╚ÑΩñ¼ñóñδñ╚íó╗╪─Ωñ╡ñ∞ñ┐ uid ñ▐ñ┐ñ╧ gid ñ╧Ñ╒ÑíÑñÑδñ╪ñ╬ÑóÑ»Ñ╗Ñ╣ñ¼╡±╚▌ñ╡ñ∞ñ▐ñ╣íúÑ¿Ñ≤Ñ╚ÑΩñ╧╞├─Ωñ╬╜τ╜°ñ╟╗╪─Ωñ╣ñδ╔¼═╫ñ╧ñóñΩñ▐ñ╗ñ≤íúÑ¿Ñ≤Ñ╚ÑΩñ╧íóÑ╒ÑíÑñÑδñ╦┼¼═╤ñ╡ñ∞ñδ┴░ñ╦íóÑ│Ñ▐Ñ≤Ñ╔ñ╟Ñ╜í╝Ñ╚ñ╡ñ∞ñ▐ñ╣íú

-m

Ñ╒ÑíÑñÑδñ╦ 1 ñ─░╩╛σñ╬┐╖ñ╖ññ ACL Ñ¿Ñ≤Ñ╚ÑΩñ≥─╔▓├ñ╖ñ┐ñΩíóÑ╒ÑíÑñÑδñ╬ 1 ñ─░╩╛σñ╬┤√┬╕ñ╬ ACL Ñ¿Ñ≤Ñ╚ÑΩñ≥╩╤╣╣ñ╖ñ┐ñΩñ╖ñ▐ñ╣íú╗╪─Ωñ╡ñ∞ñ┐ uid ñ▐ñ┐ñ╧ gid ñ╦ñ─ñññ╞íóÑ¿Ñ≤Ñ╚ÑΩñ¼ñ╣ñ╟ñ╦┬╕║▀ñ╣ñδ╛∞╣τíó╕╜║▀ñ╬╡÷▓─ñ╧╗╪─Ωñ╡ñ∞ñ┐╡÷▓─ñ╦├╓ñ¡┤╣ñ¿ñΘñ∞ñ▐ñ╣íú╗╪─Ωñ╡ñ∞ñ┐ uid ñ▐ñ┐ñ╧ gid ñ╦ñ─ñññ╞Ñ¿Ñ≤Ñ╚ÑΩñ¼┬╕║▀ñ╖ñ╩ññ╛∞╣τñ╦ñ╧íóÑ¿Ñ≤Ñ╚ÑΩñ¼║ε└«ñ╡ñ∞ñ▐ñ╣íú

-d

Ñ╒ÑíÑñÑδñ╬ 1 ñ─░╩╛σñ╬┤√┬╕ñ╬ ACL Ñ¿Ñ≤Ñ╚ÑΩñ≥║∩╜ⁿñ╖ñ▐ñ╣íúÑ╒ÑíÑñÑδñ╬╜Ω═¡╝╘íó╜Ω═¡Ñ░Ñδí╝Ñ╫ñ¬ñΦñ╙ other Ñ¿Ñ≤Ñ╚ÑΩñ╧íóACL ñ½ñΘñ╧║∩╜ⁿñ╟ñ¡ñ▐ñ╗ñ≤íú

---

├φ░╒: 1 ñ─ñ╬Ñ¿Ñ≤Ñ╚ÑΩñ≥║∩╜ⁿñ╣ñδñ│ñ╚ñ╧íóÑ¿Ñ≤Ñ╚ÑΩñ╬ñ╣ñ┘ñ╞ñ╬╡÷▓─ñ≥║∩╜ⁿñ╣ñδñ╬ñ╚ñ╧╔¼ñ║ñ╖ñΓ╞▒ñ╕╕·▓╠ñ╦ñ╩ñΩñ▐ñ╗ñ≤íú

---

╞├ñ╦íó╞├─Ωñ╬ѵí╝Ñ╢ñ╬Ñ¿Ñ≤Ñ╚ÑΩñ≥║∩╜ⁿñ╣ñδñ╚íóñ╜ñ╬ѵí╝Ñ╢ñ╬╡÷▓─ñ╧``other''Ñ¿Ñ≤Ñ╚ÑΩñ╦ñΦñ├ñ╞╖Φ─Ωñ╡ñ∞ñδñ│ñ╚ñ╦ñ╩ñΩñ▐ñ╣(ѵí╝Ñ╢ñ¼╜Ω═¡Ñ░Ñδí╝Ñ╫ñ╦┬░ñ╖ñ╞ñññδ╛∞╣τñ╧íó╜Ω═¡``group''ñ╬Ñ¿Ñ≤Ñ╚ÑΩñ╦ñΦñ├ñ╞╖Φ─Ωñ╡ñ∞ñ▐ñ╣)íú

-f

Ñ╒ÑíÑñÑδñ╬ ACL ñ≥íóacl_file ñ╚ñññª╠╛┴░ñ╬Ñ╒ÑíÑñÑδñ╦┤▐ñ▐ñ∞ñ╞ñññδ ACL Ñ¿Ñ≤Ñ╚ÑΩñ╦└▀─Ωñ╖ñ▐ñ╣íú╗╪─Ωñ╡ñ∞ñδÑ¿Ñ≤Ñ╚ÑΩñ╦ñ─ñññ╞ñ╧íó-s ѬÑ╫Ñ╖ÑτÑ≤ñ╚╞▒ñ╕└⌐╠≤ñ¼ñóñΩñ▐ñ╣íúacl_file ñ╟╗╪─Ωñ╡ñ∞ñδÑ╒ÑíÑñÑδñ╬├µñ╟íóÑ¿Ñ≤Ñ╚ÑΩñ╧╞├─Ωñ╬╜τ╜°ñ╦ñ╩ñ├ñ╞ñññδ╔¼═╫ñ╧ñóñΩñ▐ñ╗ñ≤íúacl_file ñ╬├µñ╟ñ╧íó"#" ñ≥Ñ│ÑßÑ≤Ñ╚ñ≥╗╪─Ωñ╣ñδ╩╕╗·ñ╚ñ╖ñ╞╗╚═╤ñ╟ñ¡ñ▐ñ╣íú"#" ñ½ñΘ╣╘╦÷ñ▐ñ╟ñ╬╩╕╗·ñ╧ñ╣ñ┘ñ╞╠╡╗δñ╡ñ∞ñ▐ñ╣íú

---

├φ░╒: acl_file ñ¼ getacl Ñ│Ñ▐Ñ≤Ñ╔ñ╬╜╨╬╧ñ╚ñ╖ñ╞║ε└«ñ╡ñ∞ñ╞ñññ┐╛∞╣τíó┴░ñ╦ "#" ñ≥╔╒ñ▒ñΘñ∞ñ╞╜±ñ¡╣■ñ▐ñ∞ñ┐═¡╕·ñ╩╡÷▓─ñ╧ñ╣ñ┘ñ╞╠╡╗δñ╡ñ∞ñ▐ñ╣íú

---

setacl Ñ│Ñ▐Ñ≤Ñ╔ñ≥╗╚═╤ñ╣ñδñ╚íóÑ╒ÑíÑñÑδ╡÷▓─Ñ╙Ñ├Ñ╚ñ¼╩╤▓╜ñ╣ñδñ│ñ╚ñ¼ñóñΩñ▐ñ╣íúÑ╒ÑíÑñÑδ╜Ω═¡╝╘ñ╬``user''ACL Ñ¿Ñ≤Ñ╚ÑΩñ¼╩╤╣╣ñ╡ñ∞ñδñ╚íóÑ╒ÑíÑñÑδ╜Ω═¡╝╘╡÷▓─Ñ╙Ñ├Ñ╚ñ¼╩╤╣╣ñ╡ñ∞ñ▐ñ╣íú``other''ACL Ñ¿Ñ≤Ñ╚ÑΩñ¼╩╤╣╣ñ╡ñ∞ñδñ╚íóÑ╒ÑíÑñÑδñ╬ other ╡÷▓─Ñ╙Ñ├Ñ╚ñ¼╩╤╣╣ñ╡ñ∞ñ▐ñ╣íúñ╜ñ╬┬╛ñ╬``user''ACL Ñ¿Ñ≤Ñ╚ÑΩñ¬ñΦñ╙í┐ñ▐ñ┐ñ╧``group''ACL Ñ¿Ñ≤Ñ╚ÑΩñ¼└▀─Ωñóñδñññ╧╩╤╣╣ñ╡ñ∞ñδñ╚íó─╔▓├ñ╬``user''Ñ¿Ñ≤Ñ╚ÑΩñ╚ñ╣ñ┘ñ╞ñ╬``group''Ñ¿Ñ≤Ñ╚ÑΩñ╦ñΦñ├ñ╞╩▌╛┌ñ╡ñ∞ñδ║╟┬τñ╬╡÷▓─ñ≥╚┐▒╟ñ╖ñ╞íóÑ╒ÑíÑñÑδÑ░Ñδí╝Ñ╫Ñ»ÑΘÑ╣╡÷▓─Ñ╙Ñ├Ñ╚ñ¼╩╤╣╣ñ╡ñ∞ñ▐ñ╣íú

ACL ñ╦─╔▓├ñ╬``user''Ñ¿Ñ≤Ñ╚ÑΩñΣ─╔▓├ñ╬``group''Ñ¿Ñ≤Ñ╚ÑΩñ¼┤▐ñ▐ñ∞ñ╞ñññ╩ññ╛∞╣τíóѬÑ╓Ñ╕ѺѻÑ╚ñ╬╜Ω═¡Ñ░Ñδí╝Ñ╫ñ╬``group''Ñ¿Ñ≤Ñ╚ÑΩñ╚``class''Ñ¿Ñ≤Ñ╚ÑΩñ╬╡÷▓─ñ╧┼∙ñ╖ñ»ñ╩ñ»ñ╞ñ╧ñ╩ñΩñ▐ñ╗ñ≤íúñ│ñ╬ñ┐ñßíó-d ѬÑ╫Ñ╖ÑτÑ≤ñ¼╗╪─Ωñ╡ñ∞ñ╞ñ¬ñΩíó─╔▓├ñ╬ѵí╝Ñ╢Ñ¿Ñ≤Ñ╚ÑΩñΣ─╔▓├ñ╬Ñ░Ñδí╝Ñ╫Ñ¿Ñ≤Ñ╚ÑΩñ¼ñ╩ññ╛∞╣τíó``class''Ñ¿Ñ≤Ñ╚ÑΩ╡÷▓─ñ╧íó╜Ω═¡Ñ░Ñδí╝Ñ╫ñ╬Ñ¿Ñ≤Ñ╚ÑΩñ╬╡÷▓─ñ╚┼∙ñ╖ññ├═ñ╦└▀─Ωñ╡ñ∞ñ▐ñ╣(ñ│ñ∞ñ╧ -r ѬÑ╫Ñ╖ÑτÑ≤ñ≥╗╚═╤ñ╣ñδñ╬ñ╚╞▒ñ╕ñ╟ñ╣)íú

Ñ╟ÑúÑ∞Ñ»Ñ╚ÑΩñ╧╛╩╬¼╗■ñ╬ ACL Ñ¿Ñ≤Ñ╚ÑΩñ≥┤▐ñαñ│ñ╚ñ¼ñ╟ñ¡ñ▐ñ╣íú╛╩╬¼╗■ñ╬ ACL Ñ¿Ñ≤Ñ╚ÑΩñ≥┤▐ñ≤ñ╟ñññδÑ╟ÑúÑ∞Ñ»Ñ╚ÑΩñ╬├µñ╟Ñ╒ÑíÑñÑδñ¼║ε└«ñ╡ñ∞ñδñ╚íó┐╖ñ╖ñ»║ε└«ñ╡ñ∞ñ┐Ñ╒ÑíÑñÑδñ╦ñ╜ñ∞ñΘñ╬Ñ¿Ñ≤Ñ╚ÑΩñ¼─╔▓├ñ╡ñ∞ñ▐ñ╣íú

ACL ñ╦─╔▓├ñ╬``default:user''Ñ¿Ñ≤Ñ╚ÑΩñ╚─╔▓├ñ╬``default:group''Ñ¿Ñ≤Ñ╚ÑΩñ¼┤▐ñ▐ñ∞ñ╞ñ¬ñΘñ║íóѬÑ╓Ñ╕ѺѻÑ╚╜Ω═¡Ñ░Ñδí╝Ñ╫ñ╦┬╨ñ╖ñ╞``default:group''Ñ¿Ñ≤Ñ╚ÑΩñ¼╗╪─Ωñ╡ñ∞ñ╞ñññδ╛∞╣τñ╦ñ╧íó``default:class''Ñ¿Ñ≤Ñ╚ÑΩñΓ╗╪─Ωñ╖ñ╩ñ»ñ╞ñ╧ñ╩ñΘñ║íóѬÑ╓Ñ╕ѺѻÑ╚╜Ω═¡Ñ░Ñδí╝Ñ╫ñ╬``default:group''Ñ¿Ñ≤Ñ╚ÑΩñ╬╡÷▓─ñ╚``default:class''Ñ¿Ñ≤Ñ╚ÑΩñ╬╡÷▓─ñ╧┼∙ñ╖ñ»ñ╩ñ»ñ╞ñ╧ñ╩ñΩñ▐ñ╗ñ≤íú

ñ│ñ╬Ñ│Ñ▐Ñ≤Ñ╔ñ╧íóACL ñ≥Ñ╡Ñ▌í╝Ñ╚ñ╖ñ╞ñññ╩ññÑ╒ÑíÑñÑδÑ╖Ñ╣Ñ╞Ñαñ╟╝┬╣╘ñ╖ñ╞íó3 ñ─ñ╬┤≡╦▄Ñ¿Ñ≤Ñ╚ÑΩíóñ╣ñ╩ñ∩ñ┴Ñ╒ÑíÑñÑδ╜Ω═¡╝╘íóÑ╒ÑíÑñÑδ╜Ω═¡Ñ░Ñδí╝Ñ╫ñ¬ñΦñ╙ other ñ╬╡÷▓─ñ≥└▀─Ωñ╣ñδñ│ñ╚ñ¼ñ╟ñ¡ñ▐ñ╣íúñ│ñ╬╛∞╣τñ╧íó─╔▓├ñ╬Ñ¿Ñ≤Ñ╚ÑΩñΣ╛╩╬¼╗■ñ╬Ñ¿Ñ≤Ñ╚ÑΩñ╧╗╪─Ωñ╟ñ¡ñ▐ñ╗ñ≤íú

╗╚═╤╬π

Ñ╒ÑíÑñÑδ filea ñ╦ 1 ñ─ñ╬ ACL Ñ¿Ñ≤Ñ╚ÑΩñ≥─╔▓├ñ╖íóѵí╝Ñ╢``archer''ñ╦╞╔ñ▀╣■ñ▀╡÷▓─ñ└ñ▒ñ≥═┐ñ¿ñδñ╦ñ╧íó╝íñ╬Ñ│Ñ▐Ñ≤Ñ╔ñ≥╞■╬╧ñ╖ñ▐ñ╣íú

 
   setacl -m user:archer:r-- filea 

ѵí╝Ñ╢``archer''ñ╬Ñ¿Ñ≤Ñ╚ÑΩñ¼ñ╣ñ╟ñ╦┬╕║▀ñ╣ñδ╛∞╣τíóñ│ñ╬Ñ│Ñ▐Ñ≤Ñ╔ñ╧ñ╜ñ╬Ñ¿Ñ≤Ñ╚ÑΩñ╬╡÷▓─ñ≥ r-- ñ╦└▀─Ωñ╖ñ▐ñ╣íú

Ñ╒ÑíÑñÑδ filea ñ╬ ACL ┴┤┬╬ñ≥├╓ñ¡┤╣ñ¿ñ╞íóѵí╝Ñ╢``archer''ñ╚``fletcher''ñ╬Ñ¿Ñ≤Ñ╚ÑΩñ≥─╔▓├ñ╖ñ╞╞╔ñ▀╜±ñ¡ÑóÑ»Ñ╗Ñ╣ñ≥╡÷▓─ñ╖íóÑ╒ÑíÑñÑδ╜Ω═¡╝╘ñ╬Ñ¿Ñ≤Ñ╚ÑΩñ╦ñ╣ñ┘ñ╞ñ╬ÑóÑ»Ñ╗Ñ╣ñ≥╡÷ñ╖íóÑ╒ÑíÑñÑδÑ░Ñδí╝Ñ╫ñ╬Ñ¿Ñ≤Ñ╚ÑΩñ╦╞╔ñ▀╣■ñ▀└∞═╤ÑóÑ»Ñ╗Ñ╣ñ≥╡÷▓─ñ╖íóother ñ╬Ñ¿Ñ≤Ñ╚ÑΩñ╦ñ╣ñ┘ñ╞ñ╬ÑóÑ»Ñ╗Ñ╣ñ≥╢╪╗▀ñ╣ñδñ╦ñ╧íó╝íñ╬Ñ│Ñ▐Ñ≤Ñ╔ñ≥╗╚═╤ñ╖ñ▐ñ╣íú

 
   setacl -r -s user::rwx,user:archer:rw-,user:fletcher:rw-,\ 
   	group::r--,class:---,other:--- filea 

Ñ╒ÑíÑñÑδ╜Ω═¡Ñ░Ñδí╝Ñ╫ñ╧╞╔ñ▀╣■ñ▀╡÷▓─ñ╖ñ½╗²ñ┴ñ▐ñ╗ñ≤ñ¼íóñ╣ñ┘ñ╞ñ╬─╔▓├``user''ACL Ñ¿Ñ≤Ñ╚ÑΩñ╚íóñ╣ñ┘ñ╞ñ╬``group''ACL Ñ¿Ñ≤Ñ╚ÑΩñ╦═┐ñ¿ñΘñ∞ñδ║╟┬τ╡÷▓─ñ╧╞╔ñ▀╣■ñ▀ñ╚╜±ñ¡╣■ñ▀ñ╬╬╛╩²ñ╟ñ╣íúñ│ñ∞ñ╧íó2 ñ─ñ╬─╔▓├``user''Ñ¿Ñ≤Ñ╚ÑΩñ¼íóñ╔ñ┴ñΘñΓñ│ñ∞ñΘñ╬╡÷▓─ñ≥╗╪─Ωñ╖ñ╞ñññδñ┐ñßñ╟ñ╣íú

-f ѬÑ╫Ñ╖ÑτÑ≤ñ≥╗╚═╤ñ╖ñ╞íó╛σñ╬╬πñ╚╞▒ñ╕ ACL ñ≥Ñ╒ÑíÑñÑδ filea ñ╦═┐ñ¿ñδñ┐ñßñ╦ñ╧íó╝íñ╬Ñ│Ñ▐Ñ≤Ñ╔ñ≥╞■╬╧ñ╖ñ▐ñ╣íú

 
   setacl -r -f filea.acl filea 

ñ│ñ╬ñ╚ñ¡íófilea.acl ñ≥╝íñ╬╞Γ═╞ñ╦ñ╖ñ╞ñ¬ñ¡ñ▐ñ╣íú

 
   user::rwx 
   user:archer:rw- 
   user:fletcher:rw- 
   group::r-- 
   other:--- 

-r ѬÑ╫Ñ╖ÑτÑ≤ñ¼╗╪─Ωñ╡ñ∞ñ╞ñññδñ╬ñ╟íó``class''Ñ¿Ñ≤Ñ╚ÑΩñ╧╔╘═╫ñ╟ñ╣íúÑ»ÑΘÑ╣Ñ¿Ñ≤Ñ╚ÑΩñ¼┬╕║▀ñ╖ñ╞ñññ∞ñ╨íóñ╜ñ╬Ñ¿Ñ≤Ñ╚ÑΩñ╧╠╡╗δñ╡ñ∞ñ▐ñ╣íú

Ñ╒ÑíÑñÑδ

/etc/passwd

ѵí╝Ñ╢ ID

/etc/group

Ñ░Ñδí╝Ñ╫ ID

┤╪╧ó╣α╠▄