Yadda ake Saita ko Canja Sunan Mai watsa shiri a CentOS/RHEL 7/8


Sunan mai masaukin kwamfuta yana wakiltar suna na musamman da aka sanya wa kwamfuta a cikin hanyar sadarwa domin a gane wannan kwamfutar ta musamman a waccan hanyar sadarwa. Ana iya saita sunan mai masaukin kwamfuta zuwa kowane sunan da kuke so, amma yakamata ku kiyaye waɗannan dokoki:

  • sunaye masu masauki suna iya ƙunsar haruffa (daga a zuwa z).
  • sunaye masu masauki suna iya ƙunsar lambobi (daga 0 zuwa 9).
  • sunaye masu masauki suna iya ƙunsar harafin saƙar kawai ( - ) azaman harafi na musamman.
  • sunayen mai masauki suna iya ƙunsar alamar ta musamman ( . ) .
  • Sunan mai masaukin baki na iya ƙunsar haɗakar duk ƙa'idodi guda uku amma dole ne farawa da ƙare da wasiƙa ko lamba.
  • Haruffa masu masaukin baki ba su da hankali.
  • Dole ne sunayen sunaye su ƙunshi tsakanin haruffa 2 zuwa 63 tsayin su.
  • Ya kamata sunayen masu watsa shirye-shirye su zama siffantawa (don sauƙaƙe gano manufar kwamfuta, wuri, yanki, da sauransu akan hanyar sadarwa).

Domin nuna sunan kwamfuta a cikin tsarin CentOS 7/8 da RHEL 7/8 ta hanyar na'ura mai kwakwalwa, ba da umarni mai zuwa. Tutar -s ta nuna gajeriyar sunan kwamfuta (sunan mai masauki kawai) da kuma alamar -f tana nuna FQDN na kwamfuta a cikin hanyar sadarwa (kawai idan kwamfutar wani yanki ne na yanki). ko daula kuma an saita FQDN).

# hostname
# hostname -s
# hostname -f

Hakanan zaka iya nuna sunan mai masaukin tsarin Linux ta hanyar bincika abun ciki na /etc/name file ta amfani da umarnin cat.

# cat /etc/hostname

Domin canza ko saita sunan mai masaukin na'ura na CentOS 7/8, yi amfani da umarnin hostnamectl kamar yadda aka nuna a cikin sashin umarni na ƙasa.

# hostnamectl set-hostname your-new-hostname

Baya ga umarnin sunan mai masauki, Hakanan zaka iya amfani da umarnin hostnamectl don nuna sunan uwar garken inji na Linux.

# hostnamectl

Domin amfani da sabon sunan mai masauki, ana buƙatar sake kunna tsarin, ba da ɗaya daga cikin umarnin da ke ƙasa don sake kunna injin CentOS 7.

# init 6
# systemctl reboot
# shutdown -r

Hanya ta biyu don saita sunan mai masaukin na'ura na CentOS 7/8 shine a gyara fayil ɗin /etc/hostname da hannu sannan a buga sabon sunan mai masaukin ku. Hakanan, sake kunna tsarin yana da mahimmanci don amfani da sabon sunan inji.

# vi /etc/hostname

Hanya ta uku da za a iya amfani da ita don canza sunan mai masaukin na'ura na CentOS 7/8 ita ce ta amfani da sysctl na Linux. Koyaya, yin amfani da wannan hanyar don canza sunan inji yana haifar da saita sunan mai ɗaukar hoto na wucin gadi.

Sunan mai watsa shiri na wucin gadi sunan mai masauki ne na musamman da aka fara kuma ana kiyaye shi ta hanyar Linux kernel azaman sunan na'ura mai taimako ban da sunan mai masaukin baki kuma baya tsira sake yi.

# sysctl kernel.hostname
# sysctl kernel.hostname=new-hostname
# sysctl -w kernel.hostname=new-hostname

Don nuna sunan mai masaukin na'ura na wucin gadi fitar da umarnin da ke ƙasa.

# sysctl kernel.hostname
# hostnamectl

A ƙarshe, ana iya amfani da umarnin hostnamectl don cimma saitunan saitunan sunan mai zuwa: –kyakkyawan, –tsaye, da –mai wucewa.

Kodayake akwai wasu ƙarin takamaiman hanyoyin da za a bi umarnin nmtui ko gyara wasu fayilolin sanyi da hannu musamman ga kowane rarraba Linux (/ sauransu/sysconfig/scripts-scripts/ifcfg-ethX don CentOS), ƙa'idodin da ke sama suna gabaɗaya ba tare da la'akari da rarraba Linux da aka yi amfani da su ba. .