Instalacija KERBEROS protokola

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Instalacija i podešavanje KERBEROS protokola (služi za proveru identiteta korisnika). KERBEROS je prijavljivanje tipa prijavi-se-samo-jednom (Single Sign On), koje korisnicima omogućava da se samo jednom prijave na sistem i da nakon toga, u skladu sa svojim ovlašćenjima, imaju pristup svim resursima u sistemu (ili mreži).

  1. Otvoriti Terminal i ukucati

    sudo apt-get install krb5-user

    Uneti šifru.

  2. Nakon završene instalacije, treba izmeniti fajl ssh_config:

    sudo gedit /etc/ssh/ssh_config

    U fajl iskopirati sledeće (umesto ******** treba napisati username), sačuvati i zatvoriti ga:

# This is the ssh client system-wide configuration file.  See
# ssh_config(5) for more information.  This file provides defaults for
# users, and the values can be changed in per-user configuration files
# or on the command line.

# Configuration data is parsed as follows:
#  1. command line options
#  2. user-specific file
#  3. system-wide file
# Any configuration value is only changed the first time it is set.
# Thus, host-specific definitions should be at the beginning of the
# configuration file, and defaults at the end.

# Site-wide defaults for some commonly used options.  For a comprehensive
# list of available options, their meanings and defaults, please see the
# ssh_config(5) man page.

Host lxplus*.cern.ch
#   ForwardAgent no
    ForwardX11 yes
    ForwardX11Trusted no
#   RhostsRSAAuthentication no
#   RSAAuthentication yes
#   PasswordAuthentication yes
#   HostbasedAuthentication no
#   GSSAPIAuthentication no
#   GSSAPIDelegateCredentials no
#   GSSAPIKeyExchange no
    GSSAPITrustDNS yes
#   BatchMode no
#   CheckHostIP yes
#   AddressFamily any
#   ConnectTimeout 0
#   StrictHostKeyChecking ask
#   IdentityFile ~/.ssh/identity
#   IdentityFile ~/.ssh/id_rsa
#   IdentityFile ~/.ssh/id_dsa
#   Port 22
#   Protocol 2,1
#   Cipher 3des
#   Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc
#   MACs hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160
#   EscapeChar ~
#   Tunnel no
#   TunnelDevice any:any
#   PermitLocalCommand no
#   VisualHostKey no
#   ProxyCommand ssh -q -W %h:%p gateway.example.com
    SendEnv LANG LC_*
    HashKnownHosts yes
    GSSAPIAuthentication yes
    GSSAPIDelegateCredentials yes

Host svn.cern.ch
   User ********
   GSSAPIAuthentication yes
   GSSAPIDelegateCredentials yes
#  Protocol 2
   ForwardX11 yes
#  IdentityFile ~/.ssh/id_rsa
   ForwardX11Trusted no	
   GSSAPITrustDNS yes
  1. Program se pokreće u Terminal-u komandom:
  2. kinit username@CERN.CH

    Uneti šifru.



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