29 Eżempji Prattiċi ta' Kmandi NMAP għal Amministraturi ta' Sistema/Netwerk Linux
L-Nmap aka Network Mapper huwa sors miftuħ u għodda versatili ħafna għall-amministraturi tas-sistema/netwerk Linux. Nmap jintuża biex jesplora netwerks, iwettaq skans tas-sigurtà, verifika tan-netwerk u jsib portijiet miftuħa fuq magna remota. Jiskennja għal hosts Live, sistemi operattivi, filtri tal-pakketti u portijiet miftuħa li jaħdmu fuq hosts remoti.
Se nkun qed inkopri l-biċċa l-kbira tal-użu tal-NMAP f'żewġ partijiet differenti u din hija l-ewwel parti ta 'nmap serja. Hawnhekk f'din is-setup, użajt żewġ servers mingħajr firewall biex nittestja l-ħidma tal-kmand Nmap.
- 192.168.0.100 – server1.linux-console.net
- 192.168.0.101 – server2.linux-console.net
# nmap [Scan Type(s)] [Options] {target specification}Kif Tinstalla NMAP fil-Linux
Il-biċċa l-kbira tad-distribuzzjonijiet tal-Linux tal-lum bħal Red Hat, CentOS, Fedoro, Debian u Ubuntu inkludew Nmap fir-repożitorji awtomatiċi tal-ġestjoni tal-pakketti tagħhom imsejħa APT. Iż-żewġ għodod jintużaw biex jinstallaw u jamministraw pakketti tas-softwer u aġġornamenti. Biex tinstalla Nmap fuq distribuzzjoni speċifika uża l-kmand li ġej.
# yum install nmap [on Red Hat based systems] $ sudo apt-get install nmap [on Debian based systems]
Ladarba tkun installa l-aħħar applikazzjoni nmap, tista 'ssegwi l-istruzzjonijiet ta' eżempju pprovduti f'dan l-artikolu.
1. Skennja Sistema b'isem tal-Ospt u Indirizz IP
L-għodda Nmap toffri diversi metodi biex tiskennja sistema. F'dan l-eżempju, qed nagħmel skan bl-użu tal-hostname bħala server2.linux-console.net biex insib il-portijiet, is-servizzi u l-indirizz MAC miftuħa kollha fis-sistema.
nmap server2.linux-console.net Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 15:42 EST Interesting ports on server2.linux-console.net (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.415 seconds You have new mail in /var/spool/mail/root
nmap 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-18 11:04 EST Interesting ports on server2.linux-console.net (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 958/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.465 seconds You have new mail in /var/spool/mail/root
2. Skennja billi tuża l-għażla -v.
Tista 'tara li l-kmand ta' hawn taħt bl-għażla -v qed jagħti informazzjoni aktar dettaljata dwar il-magna remota.
nmap -v server2.linux-console.net
Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 15:43 EST
Initiating ARP Ping Scan against 192.168.0.101 [1 port] at 15:43
The ARP Ping Scan took 0.01s to scan 1 total hosts.
Initiating SYN Stealth Scan against server2.linux-console.net (192.168.0.101) [1680 ports] at 15:43
Discovered open port 22/tcp on 192.168.0.101
Discovered open port 80/tcp on 192.168.0.101
Discovered open port 8888/tcp on 192.168.0.101
Discovered open port 111/tcp on 192.168.0.101
Discovered open port 3306/tcp on 192.168.0.101
Discovered open port 957/tcp on 192.168.0.101
The SYN Stealth Scan took 0.30s to scan 1680 total ports.
Host server2.linux-console.net (192.168.0.101) appears to be up ... good.
Interesting ports on server2.linux-console.net (192.168.0.101):
Not shown: 1674 closed ports
PORT STATE SERVICE
22/tcp open ssh
80/tcp open http
111/tcp open rpcbind
957/tcp open unknown
3306/tcp open mysql
8888/tcp open sun-answerbook
MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems)
Nmap finished: 1 IP address (1 host up) scanned in 0.485 seconds
Raw packets sent: 1681 (73.962KB) | Rcvd: 1681 (77.322KB)Skennja Ospiti Multipli
Tista' tiskennja hosts multipli billi sempliċement tikteb l-indirizzi IP jew l-ismijiet tal-host tagħhom b'Nmap.
nmap 192.168.0.101 192.168.0.102 192.168.0.103 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 16:06 EST Interesting ports on server2.linux-console.net (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 3 IP addresses (1 host up) scanned in 0.580 seconds
4. Skennja Subnet sħiħ
Tista' tiskennja firxa sħiħa ta' subnet jew IP b'Nmap billi tipprovdi * wildcard magħha.
nmap 192.168.0.* Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 16:11 EST Interesting ports on server1.linux-console.net (192.168.0.100): Not shown: 1677 closed ports PORT STATE SERVICE 22/tcp open ssh 111/tcp open rpcbind 851/tcp open unknown Interesting ports on server2.linux-console.net (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 256 IP addresses (2 hosts up) scanned in 5.550 seconds You have new mail in /var/spool/mail/root
Fuq l-output ta 'hawn fuq tista' tara li nmap skennja subnet sħiħ u ta l-informazzjoni dwar dawk l-hosts li huma Up fin-Netwerk.
5. Skennja Multiple Servers billi tuża l-aħħar ottett tal-indirizz IP
Tista 'twettaq skans fuq indirizz IP multipli billi sempliċiment tispeċifika l-aħħar ottett tal-indirizz IP. Per eżempju, hawn I twettaq skan fuq indirizzi IP 192.168.0.101, 192.168.0.102 u 192.168.0.103.
nmap 192.168.0.101,102,103 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 16:09 EST Interesting ports on server2.linux-console.net (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 3 IP addresses (1 host up) scanned in 0.552 seconds You have new mail in /var/spool/mail/root
6. Skennja l-lista ta' Hosts minn Fajl
Jekk għandek aktar hosts x'tiskennja u d-dettalji kollha tal-host huma miktuba f'fajl, tista' titlob direttament lil nmap biex jaqra dak il-fajl u jwettaq skans. Ejja naraw kif tagħmel dan.
Oħloq fajl test imsejjaħ nmaptest.txt u ddefinixxi l-indirizzi IP kollha jew l-isem tal-host tas-server li trid tagħmel skan.
cat > nmaptest.txt localhost server2.linux-console.net 192.168.0.101
Sussegwentement, mexxi l-kmand li ġej bl-għażla iL bil-kmand nmap biex tiskennja l-indirizz IP elenkat kollu fil-fajl.
nmap -iL nmaptest.txt Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-18 10:58 EST Interesting ports on localhost.localdomain (127.0.0.1): Not shown: 1675 closed ports PORT STATE SERVICE 22/tcp open ssh 25/tcp open smtp 111/tcp open rpcbind 631/tcp open ipp 857/tcp open unknown Interesting ports on server2.linux-console.net (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 958/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Interesting ports on server2.linux-console.net (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 958/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 3 IP addresses (3 hosts up) scanned in 2.047 seconds
7. Skennja Medda ta 'Indirizzi IP
Tista 'tispeċifika firxa IP waqt li twettaq skan b'Nmap.
nmap 192.168.0.101-110 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 16:09 EST Interesting ports on server2.linux-console.net (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 10 IP addresses (1 host up) scanned in 0.542 seconds
8. Scan Network Esklużi Hosts Remoti
Tista' teskludi xi hosts waqt li tkun qed tagħmel skanjar tan-netwerk sħiħ jew meta tkun qed tiskennja b'wildcards bl-għażla -eskludi.
nmap 192.168.0.* --exclude 192.168.0.100 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 16:16 EST Interesting ports on server2.linux-console.net (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 255 IP addresses (1 host up) scanned in 5.313 seconds You have new mail in /var/spool/mail/root
9. Scan OS informazzjoni u Traceroute
B'Nmap, tista' tiskopri liema OS u verżjoni qed taħdem fuq il-host remot. Biex nippermettu l-iskoperta tal-OS u l-verżjoni, l-iskannjar tal-iskript u t-traceroute, nistgħu nużaw l-għażla -A b'NMAP.
nmap -A 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 16:25 EST Interesting ports on server2.linux-console.net (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE VERSION 22/tcp open ssh OpenSSH 4.3 (protocol 2.0) 80/tcp open http Apache httpd 2.2.3 ((CentOS)) 111/tcp open rpcbind 2 (rpc #100000) 957/tcp open status 1 (rpc #100024) 3306/tcp open mysql MySQL (unauthorized) 8888/tcp open http lighttpd 1.4.32 MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) No exact OS matches for host (If you know what OS is running on it, see http://www.insecure.org/cgi-bin/nmap-submit.cgi). TCP/IP fingerprint: SInfo(V=4.11%P=i686-redhat-linux-gnu%D=11/11%Tm=52814B66%O=22%C=1%M=080027) TSeq(Class=TR%IPID=Z%TS=1000HZ) T1(Resp=Y%DF=Y%W=16A0%ACK=S++%Flags=AS%Ops=MNNTNW) T2(Resp=N) T3(Resp=Y%DF=Y%W=16A0%ACK=S++%Flags=AS%Ops=MNNTNW) T4(Resp=Y%DF=Y%W=0%ACK=O%Flags=R%Ops=) T5(Resp=Y%DF=Y%W=0%ACK=S++%Flags=AR%Ops=) T6(Resp=Y%DF=Y%W=0%ACK=O%Flags=R%Ops=) T7(Resp=Y%DF=Y%W=0%ACK=S++%Flags=AR%Ops=) PU(Resp=Y%DF=N%TOS=C0%IPLEN=164%RIPTL=148%RID=E%RIPCK=E%UCK=E%ULEN=134%DAT=E) Uptime 0.169 days (since Mon Nov 11 12:22:15 2013) Nmap finished: 1 IP address (1 host up) scanned in 22.271 seconds You have new mail in /var/spool/mail/root
Fl-Output ta 'hawn fuq, tista' tara li nmap ħareġ bil-marki tas-swaba 'TCP/IP tal-OS li jaħdem fuq hosts remoti u li jkun aktar speċifiku dwar il-port u s-servizzi li jaħdmu fuq l-ospiti remoti.
10. Ippermetti OS Detection b'Nmap
Uża l-għażla -O u -osscan-guess tgħin ukoll biex tiskopri l-informazzjoni dwar l-OS.
nmap -O server2.linux-console.net Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 17:40 EST Interesting ports on server2.linux-console.net (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) No exact OS matches for host (If you know what OS is running on it, see http://www.insecure.org/cgi-bin/nmap-submit.cgi). TCP/IP fingerprint: SInfo(V=4.11%P=i686-redhat-linux-gnu%D=11/11%Tm=52815CF4%O=22%C=1%M=080027) TSeq(Class=TR%IPID=Z%TS=1000HZ) T1(Resp=Y%DF=Y%W=16A0%ACK=S++%Flags=AS%Ops=MNNTNW) T2(Resp=N) T3(Resp=Y%DF=Y%W=16A0%ACK=S++%Flags=AS%Ops=MNNTNW) T4(Resp=Y%DF=Y%W=0%ACK=O%Flags=Option -O and -osscan-guess also helps to discover OS R%Ops=) T5(Resp=Y%DF=Y%W=0%ACK=S++%Flags=AR%Ops=) T6(Resp=Y%DF=Y%W=0%ACK=O%Flags=R%Ops=) T7(Resp=Y%DF=Y%W=0%ACK=S++%Flags=AR%Ops=) PU(Resp=Y%DF=N%TOS=C0%IPLEN=164%RIPTL=148%RID=E%RIPCK=E%UCK=E%ULEN=134%DAT=E) Uptime 0.221 days (since Mon Nov 11 12:22:16 2013) Nmap finished: 1 IP address (1 host up) scanned in 11.064 seconds You have new mail in /var/spool/mail/root
11. Skennja Ospitanti biex Tiskopri Firewall
Il-kmand t'hawn taħt se jwettaq skan fuq host remot biex jiskopri jekk xi filtri tal-pakkett jew Firewall jintużax mill-host.
nmap -sA 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 16:27 EST All 1680 scanned ports on server2.linux-console.net (192.168.0.101) are UNfiltered MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.382 seconds You have new mail in /var/spool/mail/root
12. Skennja Ospitanti biex tivverifika l-protezzjoni tiegħu minn Firewall
Biex tiskennja host jekk ikun protett minn xi softwer tal-iffiltrar tal-pakketti jew Firewalls.
nmap -PN 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 16:30 EST Interesting ports on server2.linux-console.net (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.399 seconds
13. Sib Hosts Live f'Netwerk
Bl-għajnuna tal-għażla -sP nistgħu sempliċement niċċekkjaw liema hosts huma ħajjin u up fin-Netwerk, b'din l-għażla nmap taqbeż is-sejbien tal-port u affarijiet oħra.
nmap -sP 192.168.0.* Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-18 11:01 EST Host server1.linux-console.net (192.168.0.100) appears to be up. Host server2.linux-console.net (192.168.0.101) appears to be up. MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 256 IP addresses (2 hosts up) scanned in 5.109 seconds
14. Wettaq Skan Mgħaġġel
Tista 'twettaq skan veloċi b'għażla -F biex tiskennja għall-portijiet elenkati fil-fajls nmap-services u tħalli l-portijiet l-oħra kollha.
nmap -F 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 16:47 EST Interesting ports on server2.linux-console.net (192.168.0.101): Not shown: 1234 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.322 seconds
15. Sib il-verżjoni Nmap
Tista 'ssir taf il-verżjoni Nmap li qed taħdem fuq il-magna tiegħek bl-għażla -V.
nmap -V Nmap version 4.11 ( http://www.insecure.org/nmap/ ) You have new mail in /var/spool/mail/root
16. Skennja Portijiet Konsekuttivament
Uża l-bandiera -r biex ma tagħmilx każwali.
nmap -r 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 16:52 EST Interesting ports on server2.linux-console.net (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.363 seconds
17. Stampa Interfaces Ospitanti u Rotot
Tista' ssib l-interface tal-host u l-informazzjoni dwar ir-rotta b'nmap billi tuża l-għażla -iflist.
nmap --iflist Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 17:07 EST ************************INTERFACES************************ DEV (SHORT) IP/MASK TYPE UP MAC lo (lo) 127.0.0.1/8 loopback up eth0 (eth0) 192.168.0.100/24 ethernet up 08:00:27:11:C7:89 **************************ROUTES************************** DST/MASK DEV GATEWAY 192.168.0.0/0 eth0 169.254.0.0/0 eth0
Fl-output ta 'hawn fuq, tista' tara li l-mappa qed telenka interfaces mehmuża mas-sistema tiegħek u r-rotot rispettivi tagħhom.
18. Skennja għal Port speċifiku
Hemm diversi għażliet biex tiskopri portijiet fuq magna remota b'Nmap. Tista 'tispeċifika l-port li trid li nmap jiskennja bl-għażla -p, b'mod awtomatiku nmap jiskenja biss portijiet TCP.
nmap -p 80 server2.linux-console.net Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 17:12 EST Interesting ports on server2.linux-console.net (192.168.0.101): PORT STATE SERVICE 80/tcp open http MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) sca
19. Skennja Port TCP
Tista 'wkoll tispeċifika tipi u numri ta' port speċifiċi b'nmap biex tiskennja.
nmap -p T:8888,80 server2.linux-console.net Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 17:15 EST Interesting ports on server2.linux-console.net (192.168.0.101): PORT STATE SERVICE 80/tcp open http 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.157 seconds
20. Skennja Port UDP
nmap -sU 53 server2.linux-console.net Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 17:15 EST Interesting ports on server2.linux-console.net (192.168.0.101): PORT STATE SERVICE 53/udp open http 8888/udp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.157 seconds
21. Skennja Portijiet Multipli
Tista 'wkoll tiskennja portijiet multipli billi tuża l-għażla -p.
nmap -p 80,443 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-18 10:56 EST Interesting ports on server2.linux-console.net (192.168.0.101): PORT STATE SERVICE 80/tcp open http 443/tcp closed https MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.190 seconds
22. Skennja l-Portijiet skond il-Medda tan-Netwerk
Tista' tiskennja portijiet b'firxiet billi tuża espressjonijiet.
nmap -p 80-160 192.168.0.101
23. Sib in-Numri tal-verżjoni tas-Servizzi Ospitanti
Nistgħu nsibu l-verżjonijiet tas-servizz li qed jaħdmu fuq hosts remoti bl-għażla -sV.
nmap -sV 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 17:48 EST Interesting ports on server2.linux-console.net (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE VERSION 22/tcp open ssh OpenSSH 4.3 (protocol 2.0) 80/tcp open http Apache httpd 2.2.3 ((CentOS)) 111/tcp open rpcbind 2 (rpc #100000) 957/tcp open status 1 (rpc #100024) 3306/tcp open mysql MySQL (unauthorized) 8888/tcp open http lighttpd 1.4.32 MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 12.624 seconds
24. Skennja hosts remoti billi tuża TCP ACK (PA) u TCP Syn (PS)
Xi drabi l-firewalls tal-iffiltrar tal-pakketti jimblokkaw it-talbiet ping ICMP standard, f'dak il-każ, nistgħu nużaw il-metodi TCP ACK u TCP Syn biex niskennjaw hosts remoti.
nmap -PS 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 17:51 EST Interesting ports on server2.linux-console.net (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.360 seconds You have new mail in /var/spool/mail/root
25. Scan Remote host għal portijiet speċifiċi b'TCP ACK
nmap -PA -p 22,80 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 18:02 EST Interesting ports on server2.linux-console.net (192.168.0.101): PORT STATE SERVICE 22/tcp open ssh 80/tcp open http MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.166 seconds You have new mail in /var/spool/mail/root
26. Scan Remote host għal portijiet speċifiċi b'TCP Syn
nmap -PS -p 22,80 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 18:08 EST Interesting ports on server2.linux-console.net (192.168.0.101): PORT STATE SERVICE 22/tcp open ssh 80/tcp open http MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.165 seconds You have new mail in /var/spool/mail/root
27. Wettaq Skennjar mistħoqq
nmap -sS 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 18:10 EST Interesting ports on server2.linux-console.net (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.383 seconds You have new mail in /var/spool/mail/root
28. Iċċekkja l-Portijiet l-aktar użati b'mod komuni b'TCP Syn
nmap -sT 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 18:12 EST Interesting ports on server2.linux-console.net (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.406 seconds You have new mail in /var/spool/mail/root
29. Wettaq scan null tcp biex iqarraq firewall
nmap -sN 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 19:01 EST Interesting ports on server2.linux-console.net (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open|filtered ssh 80/tcp open|filtered http 111/tcp open|filtered rpcbind 957/tcp open|filtered unknown 3306/tcp open|filtered mysql 8888/tcp open|filtered sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 1.584 seconds You have new mail in /var/spool/mail/root
Dak hu bl-NMAP għalissa, ser inkun noħroġ għażliet aktar kreattivi ta 'NMAP fit-tieni parti tagħna ta' dan is-serjetà. Sa dak iż-żmien, żommu sintonizzat magħna u tinsiex taqsam il-kummenti siewja tiegħek.