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7/23/2019 Laporan Praktikum Keamanan Jaringan Portsentry
http://slidepdf.com/reader/full/laporan-praktikum-keamanan-jaringan-portsentry 1/5
LAPORAN PRAKTIKUM KEAMANAN JARINGAN
PORTSENTRY
Oleh :
NOVRIZA ARIZKI
NIM E32131559
PROGRAM STUDI TEKNIK KOMPUTER JURUSAN TEKNOLOGI INFORMASI
POLITEKNIK NEGERI JEMBER
2015
7/23/2019 Laporan Praktikum Keamanan Jaringan Portsentry
http://slidepdf.com/reader/full/laporan-praktikum-keamanan-jaringan-portsentry 2/5
1. Dasar Teor
1.1 PORTSENTRY
1.1.1 Penge!"#n P$!%en!&
P$!%en!& #'#l#h %e()#h *e#ng+#! l)n#+ &#ng '" #n,#ng )n!)+
-en'e!e+%" #'#n&# *$! %,#nn"ng -ee%*$n %e,## #+!"/ "+# #'# *$!
%,#nn"ng. P$! %,#n #'#l#h *$%e% %,#nn"ng (e(#g#" #*l"+#%" %e",e
&#ng '"#l#n+#n '" %ee In!ene!. P$! %,#n #'#l#h l#ng+#h *#l"ng ##l
%e(el)- %e()#h %e#ng#n '" l#+)+#n.
3## +e# *$! %en!& 'eng#n -el#+)+#n -el"h#! +$-*)!e &#ng
-el#+)+#n %,#n '#n %e,## #+!"/ #+#n -e-(l$+" -e%"n *en&e#ng #g#
!"'#+ '#*#! -#%)+ -el#+)+#n !#n%#+%" 'eng#n %ee +"!#.
1.1.2 F"!) P$!%en!&
a. P$!%en!& #+#n -en'e!e+%" (e(#g#" !e+n"+ %,#n %e*e!" SYN4h#l/
$*en6 FIN6 NULL '#n 7MAS.
!. P$!%en!& #+#n (ee#+%" !eh#'#* )%#h# *$! %,#n '#" l##n
'eng#n ,## -e-(l$+" *en&e#ng %e,## e#l !"-e '#" )%#h# #)!$
%,#nne6 *$(e *en&el"'"+6 -#)*)n %e#ng#n !eh#'#* %"%!e-.
". P$!%en!& #+#n -el#*$+#n %e-)# +e#ngg#l#n '#n *el#ngg##n
+e*#'# %$/!#e '#e-$n %&%l$g l$+#l -#)*)n e-$!e &#ng (e"%"
n#-# %"%!e-6 #+!) %e#ng#n6 IP *en&e#ng -#)*)n n$-$ *$!
T3P #!#) UDP !e-*#! %e#ng#n '" l#+)+#n.
#. F"!) )n"+ P$!%en!& #'#l#h *#'# %##! !e'e!e+%" %e()#h *$! %,#n6
%"%!e- An'# !"(#!"(# -engh"l#ng '#" h#'#*#n *en&e#ng. F"!) "n"
-e-()#! *en&e#ng !"'#+ (e+)!"+.
e. P$!%en!& %el#l) -eng"ng#! #l#-#! IP *en&e#ng6 "+# #'# %e#ng#n
*$! %,#n &#ng (e%"/#! #n'$- -#+# *$!%en!& #+#n (ee#+%".
S#l#h %#!) h#l &#ng -en#"+ '#" *$!%en!& #'#l#h (#h# *$g#-"n" '"#n,#ng #g# '#*#! '"+$n/"g)#%" %e,## %e'eh#n# %e+#l" '#n
(e(#% '#" +eh#)%#n -e-el"h##.
1.2 NMAP
N-#* #'#l#h !$$l% *e-e!##n #"ng#n 8ne!$+9 !e(#"+ &#ng
*en#h #'# %e#)h "n". P#ngg)n##nn&# &#ng *#+!"%6 +$n/"g)#%" &#ng
-)'#h6 '#n +eh#n'#l#nn&# '#l#- -e-e!#+#n #"ng#n +$-*)!e '"
-#n#*)n. Deng#n N-#*6 #n'# '#*#! -enge!#h)" +$-*)!e+$-*)!e
7/23/2019 Laporan Praktikum Keamanan Jaringan Portsentry
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8h$%!%9 #*# %## &#ng %e'#ng !eh)()ng '#l#- %e()#h #"ng#n6 #*#
%e",e 8#*l"+#%"9 &#ng %e'#ng '"#l#n+#n +$-*)!e "!) 8h$%!96 #*# %"%!e-
$*e#%" +$-*)!e &#ng '"*#+#"6 #*# !"*e /"e#ll &#ng '"g)n#+#n6 '#n
+##+!e"%!"+ l#"nn&# '#" +$-*)!e.
N-#* )g# -e)*#+#n )!"l"!#% +e#-#n#n $*en%$),e &#ng
*$e/)ll &#ng '#*#! '"g)n#+#n )n!)+ -eng#)'"! +e#-#n#n '#n
-enge+%*l$#%" #"ng#n6 !e!#*" '#*#! )g# '"g)n#+#n )n!)+ +$-*)!e
&#ng !"'#+ !eh)()ng 'eg#n #"ng#n. N-#* '"'e%#"n )n!)+ -el#+)+#n
%,#nn"ng #"ng#n (e%# #!#) +e,"l 'eng#n -engg)n#+#n *#+e! # IP
)n!)+ -enge!#h)" h$%! &#ng )*; '#l#- #"ng#n6 %e",e &#ng '"#l#n+#n
'#n n$-$ *$! &#ng !e()+#6 '#n !"*e *#,+e!/"l!e4/"e#ll &#ng
'"g)n#+#n '#n (e(#g#" -#,#- +##+!e"%!"+ l#"nn&#. N-#* '#*#!
'"g)n#+#n )n!)+ -el#+)+#n /"nge*"n!"ng &#ng ("%# -e-(#n'"ng+#n
'#n -e-(e"+#n e%!"-#%" en"% %"%!e- $*e#%" 8OS9 #*# &#ng '"g)n#+#n
!#ge!. N-#* )g# -e-*)n&#" (#n&#+ +ele("h#n #!#) Fl#g% &#ng #+#n
-e-#n"*)l#%" ,## S,#nn"ng. N-#* +$-*#!"(el 'eng#n L"n)<4BSD
F#-"l& 8=n"<9 '#n >"n'$%.
?en-#* -e)*#+#n e%" GUI '#" n-#* &#ng '#*#! '"#l#n+#n
*#'# %&%!e- $*e#%" "n'$%.
2. Ke$a%a& Pra'%'()* +as, #a& A&a,sa
2.1 In%!#l#%" PORTSENTRY
#*!ge! "n%!#ll *$!%en!&
2.2 K$n/"g)#%"
[email protected] Menge'"! /"le *$!%en!&.,$n/
P",$ 4e!,4*$!%en!&4*$!%en!&.,$n/
#. Mengh"l#ng+#n !#n'# *#'# +$n/"g)#%"
KILLROUTEC4%("n4"*!#(le% I INPUT % TARGETS DROP
Be/)ng%" )n!)+ -eee,! +$ne+%" h$%! *en&e#ng 'eng#n
-engg)n#+#n "*!#(le% +e!"+# !e!#ng+#* -el#+)+#n +eg"#!#n %,#nn"ng
*$! *#'# #"ng#n.
(. Mengh"l#ng+#n !#n'# *#'# +$n/"g)#%"
7/23/2019 Laporan Praktikum Keamanan Jaringan Portsentry
http://slidepdf.com/reader/full/laporan-praktikum-keamanan-jaringan-portsentry 4/5
KILLOSTSDENYCALL: TARGETS : DENY
Be/)ng%" )n!)+ -e-/"l!e #,,e%% IP h$%! *en&e#ng +e!"+# !e!#ng+#*-el#+)+#n %,#nn"ng *$! *#'# #"ng#n.
[email protected] Menge'"! /"le *$!%en!&."gn$e.%!#!",
P",$ 4e!,4*$!%en!&4*$!%en!&."gn$e.%!#!",
Men#-(#h+#n IP &#ng !"'#+ "ng"n !el"n')ng" $leh /"e#ll *$!%en!&6
%eh"ngg# IP !e%e()! '#*#! -el#+)+#n *$! %,#nn"ng *#'# #"ng#n !#n*#
-eng+h##!"+#n '"(l$+" $leh *$!%en!&.
2.@.@ Menge'"! /"le *$!%en!&
P",$ 4e!,4'e/#)l!4*$!%en!&
Be/)ng%" )n!)+ -e-"l"h -$'e T3P '#n UDP +e!"+# *$!%en!&
-en'e!e+%" *$! T3P4UDP6 -e-"l"h -$'e 'e!e+%" *$! %e%)#" 'eng#n
&#ng '"!en!)+#n '" *$!%en!&.,$n/.
2.@ Meng#+!"/+#n %&%!e- *$!%en!&
4e!,4"n"!.'4*$!%en!& e%!#!
2.H Te% K$n/"g)#%"
#. S"#*+#n K$-*)!e 'eng#n OS >"n'$% '#n L"n)< De("#n &#ng
!el#h '"+$n/"g)#%" *$!%en!&.
(. P#'# +$-*)!e l"n)<6 +e!"+ *e"n!#h !#"l / 4#4l$g4%&%l$g &#ng
(eg)n# )n!)+ -enge!#h)" #+!"/"!#% *$!%en!& -el#l)" '#!# %&%l$g.
,. P#'# +$-*)!e "n'$%6 '$nl$#' ?en-#* '#n #l#n+#n.
'. M#%)++#n IP '#" ,$-*)!e !#ge! '#n *"l"h -$'e %e#ng#n.
e. J"+# IP '#" ,$-*)!e *en&e#ng !"'#+ '"!#-(#h+#n *#'# /"le
*$!%en!&."gn$e.%!#!",6 -#+# IP *en&e#ng #+#n '"(l$+ '#n *#'#
,$-*)!e l"n)< #+#n -)n,)l *e"ng#!#n !en!#ng #'#n&# %e#ng#n.
/. J"+# IP '#" ,$-*)!e *en&e#ng '"!#-(#h+#n *#'#
*$!%en!&."gn$e.%!#!",6 -#+# %e#ng#n n-#* #+#n (eh#%"l '#n IP
*en&e#ng !"'#+ #+#n '" (l$+.
7/23/2019 Laporan Praktikum Keamanan Jaringan Portsentry
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3. Kes)-(,a&
Ke%"-*)l#n '#" *#+!"+)- &#ng !el#h '"l#+)+#n #'#l#h :#. P$!%en!& -e)*#+#n !$$l% &#ng h#n'#l )n!)+ -el"n')ng" ,$-*)!e
'#" %e#ng#n *$! %,#nn"ng. (. F"le *$!%en!&."gn$e.%!#!", -e-*)n&#" /)ng%" &#ng %#-# 'eng#n
h"!el"%!.
. Da/%ar P(s%a'a
h!!*:44h#'"-##.(l$g%*$!.,$."'420124104*$!%en!&.h!-l
h!!*:44#'#-"!#.(l$g%*$!.,$."'420114104*enge!"#nn-#*.h!-l