Wani lokaci muna buƙatar sanin idan tashar X a buɗe take a kan kwamfutar da ke nesa (ko uwar garke), a wannan lokacin ba mu da 'yan zaɓuɓɓuka ko kayan aikin da za mu yi amfani da su:
yanci
Mafita ta farko da yawancinmu muke tunani ita ce: yanci , duba labarin da ake kira: Duba buɗe tashar jiragen ruwa tare da NMap da matakan don kare kanmu
Idan ba kwa son yin cikakken hoto, amma kawai kuna son sanin idan an buɗe wani tashar jirgin ruwa akan kwamfutar X / uwar garke, zai zama kamar haka:
nmap {IP_O_DOMINIO} -p {PUERTO} | grep -i tcp
Alal misali:
nmap localhost -p 22 | grep -i tcp
Ya da kyau:
nmap 127.0.0.1 -p 22 | grep -i tcp
Menene wannan mai sauki ne, yana tambayar IP ko Mai watsa shiri idan tashar da aka bayar a bude take ko a'a, sannan a tace mai kawai sai kawai a nuna layin da suke son karantawa, wanda yake gaya musu idan an bude (a bude) ko an rufe (rufe ) tashar jiragen ruwa:
Da kyau ... ee, nmap (Binciken cibiyar sadarwa da kayan bincike na tashar ruwa) yana mana aiki, amma har yanzu akwai sauran bambance-bambancen karatu inda zaku buga ƙasa 🙂
nc
nc ko netcat, zaɓi ne mafi sauƙi don sanin idan tashar jirgin ruwa a buɗe take ko a'a:
nc -zv {IP_O_DOMINIO} {PUERTO}
Wannan shine:
nc -zv 192.168.122.88 80
Anan akwai hoton hoto wanda yake gwadawa zuwa tashar jiragen ruwa da aka bude (80) da kuma wani zuwa wata tashar jiragen ruwa wacce ba (53) ba:
El -zv abin da yake yi mai sauki ne, v ba mu damar ganin idan tashar ta buɗe ko a'a, yayin da z ta rufe haɗin da zaran an duba tashar, idan ba mu sanya z to lallai ne muyi wani Ctrl + C don rufe nc.
telnet
Wannan shine bambancin da nayi amfani dashi na ɗan lokaci (saboda jahilcin abubuwan da aka ambata), sannan kuma telnet yana yi mana hidima fiye da kawai sanin idan tashar ta buɗe ko a'a.
telnet {IP_O_HOST} {PUERTO}
Ga misali:
telnet 192.168.122.88 80
Matsalar telnet tana rufe haɗin yanar gizo. A wata ma'anar, a wasu lokuta ba za mu iya rufe buƙatun telnet ba kuma za a tilasta mu rufe wannan tashar, ko kuma in ba haka ba a wata tashar za a yi telnet killall ko wani abu makamancin haka. Wannan shine dalilin da yasa na guji amfani da telnet sai dai in da gaske ne.
Karshe!
Koyaya, Ina fata wannan ya kasance mai ban sha'awa a gare ku, idan kowa ya san wata hanyar da zata san idan tashar buɗewa ko a buɗe akan wata kwamfutar, bar shi a cikin bayanan.
gaisuwa
Waɗannan dokokin za su zo mini da sauƙi lokacin da na haɗa ta hanyar SSH!
Gracias!
Shin akwai aikace-aikacen zane don yin hakan?
Da kyau koyaushe zaka iya shigar zenmap wanda ke amfani da nmap daga baya :)
Idan tare da nmapfe, shine zane mai zane wanda yazo tare da nmap.
Tare da netcat yana gaya mani cewa z wani zaɓi ne mara inganci, ba tare da shi yana aiki daidai ba, kuma a cikin $ man nc, shima bai bayyana ba. Daga ina ya fito?
https://blog.desdelinux.net/wp-content/uploads/2013/12/Captura-de-pantalla-de-2013-12-29-011908.png
-z: Yana ƙayyade cewa nc ya kamata kawai bincika don sauraron raɗaɗɗa, ba tare da aika musu da wani bayanai ba. Kuskure ne yin amfani da wannan zaɓi tare da zaɓi -l.
Tare da nc a na samu O_O
Kuma ta yaya zan haɗu da VPS akan SSL?
Abin da koyaushe nake yi shi ne gudanar da nmapfe host-ip don ya ba ni dukkan tashoshin tcp, yanzu don ganin buɗe tashoshin buɗe udp dole ne ku gudana:
nmap -sU mai watsa shiri-ip
Na kuma yi amfani da telnet fiye da komai akan windows idan ban saka niXNUMX ba, banbancin gidan yanar gizo baya roko na ...
gaisuwa
Ina so in sani game da wannan, Ina fata za ku iya tallafa mini Ina da masaniya ta asali kuma ina son ƙarin sani don amfani da irin wannan ilimin a cikin aikina.
Kawai na gano cewa bani da tashoshin da nake bukatar budawa, yanzu ya zama dole in binciko yadda zan bude su domin yin abinda nake bukata. Godiya ga gudummawar, ya taimaka min sosai.
Labari mai ban sha'awa! Bayan netcat, yana aiki a kan vmware ESXi:
http://www.sysadmit.com/2015/09/prueba-de-conexion-un-puerto-desde-VMWare-Windows-Linux.html
sudo samun shigar nmap
lambar 192.168.0.19 -p 21 | grep -i tcp
gidan mai amfani srv / ftp na gida
sake farawa tare da sudo service vsftpd sake kunnawa
write_enable = EE don masu amfani na gida su ɗora fayiloli.
Don yin keji a cikin gidansa
chroot_local_user = eh
chroot_list_enable = haka ne
ba da damar_wthariable_chroot = ee
no_annon_password = a'a ga wanda ba a sani ba don sanya izinin a matsayin ladabi
musu_email_enable = eh
dakatar_email_file = / sauransu / vsftpd.banned_emails Don ƙaryatãwa ga sunan wanda ba a sani ba ta imel.
____—————————————————————–
keji mai amfani kasa da wadanda ke cikin jerin
chroot_local_user = eh
chroot_lits_enable = ee
chroot_list_file = / sauransu / vsftpd.chroot_list.
Don kara masu amfani sudo adduser name
kashe locales local_enable = a'a
keji da kanku ta tsohuwa
ba a saka sunan ba a cikin srv / ftp
gabatarwa a cikin gidan ku
Yayi kyau sosai! Idan ba mu da nmap, telnet ko netcat, za mu iya amfani da kuli da kundin adireshi:
kyanwa </ dev / tcp / BAKI / tashar jirgin ruwa
Alal misali: http://www.sysadmit.com/2016/03/linux-cat-y-proc-prueba-de-conexion.html
Na gode, kyakkyawan bayani