Squid-kerberos: Unterschied zwischen den Versionen

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=msktutils=
=msktutils=
*apt-get install msktutil
*apt-get install msktutil
*[[Was mach mskutil]]


=create computeraccount and a local keytab=
=create computeraccount and a local keytab=
*kinit administrator
*kinit administrator
PROXY="lang.linuggs.lan"
*msktutil -c -b "CN=Computers" -s HTTP/proxy.lab34.linuggs.de -k /etc/squid/krb5.keytab --computer-name proxy --upn HTTP/proxy.lab34.linuggs.de --server win2022.lab34.linuggs.de -N
DN="douglas.linuggs.lan"
*chown proxy:proxy /etc/squid/krb5.keytab
*msktutil -c -b "CN=Computers" -s HTTP/$PROXY -k /etc/squid/PROXY.keytab --computer-name PROXYSRV-HTTP --upn HTTP/$PROXY --server $DN -N
chown proxy.proxy /etc/squid3/PROXY.keytab


=Kerberos Ticket update=
=Kerberos Ticket update=
*msktutil --auto-update  --computer-name PROXYSRV-HTTP --server $DN -s HTTP/$PROXY -k /etc/squid/PROXY.keytab -N
*msktutil --auto-update  --computer-name proxy --server win2022.lab34.linuggs.de -s HTTP/proxy.lab34.linuggs.de -k /etc/squid/krb5.keytab -N
 
=Crontab=
=Crontab=
*echo "0 4  *  *  * msktutil --auto-update --computer-name PROXYSRV-HTTP --server $DN -s HTTP/$PROXY -k /etc/squid/PROXY.keytab -N"  | crontab
*echo "0 4  *  *  * msktutil --auto-update --computer-name proxy --server win2022.lab34.linuggs.de -s HTTP/proxy.lab34.linuggs.de -k /etc/squid/krb5.keytab -N"  | crontab


=/etc/default/squid3=
=/etc/default/squid3=
  KRB5_KTNAME=/etc/squid3/PROXY.keytab
*systemctl edit squid
export KRB5_KTNAME
  Environment="KRB5_KTNAME=/etc/squid/krb5.keytab"
 
= /etc/squid/squid.conf =
= /etc/squid/squid.conf =
  <pre>
  acl localnet src 0.0.0.1-0.255.255.255 # RFC 1122 "this" network (LAN)
coredump_dir /var/spool/squid3
acl localnet src 10.0.0.0/8            # RFC 1918 local private network (LAN)
refresh_pattern ^ftp:           1440    20%    10080
acl localnet src 100.64.0.0/10        # RFC 6598 shared address space (CGN)
refresh_pattern ^gopher:       1440    0%      1440
acl localnet src 169.254.0.0/16        # RFC 3927 link-local (directly plugged) machines
refresh_pattern -i (/cgi-bin/|\?) 0     0%      0
acl localnet src 172.16.0.0/12        # RFC 1918 local private network (LAN)
refresh_pattern (Release|Packages(.gz)*)$      0      20%    2880
acl localnet src 192.168.0.0/16                # RFC 1918 local private network (LAN)
refresh_pattern .              0      20%    4320
acl localnet src fc00::/7              # RFC 4193 local private network range
access_log /var/log/squid/access.log squid
acl localnet src fe80::/10            # RFC 4291 link-local (directly plugged) machines
acl SSL_ports port 443
acl Safe_ports port 80        # http
acl Safe_ports port 21        # ftp
acl Safe_ports port 443                # https
acl Safe_ports port 70        # gopher
acl Safe_ports port 210                # wais
acl Safe_ports port 1025-65535 # unregistered ports
acl Safe_ports port 280                # http-mgmt
acl Safe_ports port 488                # gss-http
acl Safe_ports port 591                # filemaker
acl Safe_ports port 777                # multiling http
'''auth_param negotiate program /usr/lib/squid/negotiate_kerberos_auth -k /etc/squid/krb5.keytab -d'''
'''auth_param negotiate children 1000'''
'''auth_param negotiate keep_alive on'''
'''acl auth proxy_auth REQUIRED'''
'''http_access deny !auth'''
'''http_access allow auth'''
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow localhost manager
http_access deny manager
include /etc/squid/conf.d/*.conf
http_access allow localhost
http_access deny all
http_port 3128
coredump_dir /var/spool/squid
refresh_pattern ^ftp:         1440    20%    10080
refresh_pattern ^gopher:       1440    0%      1440
refresh_pattern -i (/cgi-bin/|\?) 0   0%      0
refresh_pattern .             0      20%    4320


dns_v4_first on
=restart=
 
*systemctl restart squid
# iptables command ...
#iptables -t nat -A PREROUTING -j DNAT -i eth0 -p tcp --dport 80 --to 192.168.240.100:3128
http_port 3128
http_port 3129 transparent
#####
 
 
#cache_peer 127.0.0.1 parent 8080 0 no-query no-digest no-netdb-exchange
 
 
#auth_param basic program /usr/lib/squid3/basic_ldap_auth -b "dc=xinux,dc=de" -f "uid=%s" -h 127.0.0.1
#auth_param basic children 50
#auth_param basic realm Web-Proxy
#auth_param basic credentialsttl 1 minute
#auth_param basic casesensitive off
 
 
auth_param negotiate program /usr/lib/squid/negotiate_kerberos_auth  -k /etc/squid/PROXY.keytab -d -i -s GSS_C_NO_NAME
auth_param negotiate children 10
auth_param negotiate keep_alive off
 
 
####
acl auth proxy_auth REQUIRED
acl xinux src 192.168.240.0/20
acl thomas src 192.168.244.0/24
acl localhost src 127.0.0.1/32
acl to_localhost dst 127.0.0.0/8 0.0.0.0/32
acl SSL_ports port 443
acl Safe_ports port 80          # http
acl Safe_ports port 21          # ftp
acl Safe_ports port 443        # https
acl Safe_ports port 70          # gopher
acl Safe_ports port 210        # wais
acl Safe_ports port 1025-65535  # unregistered ports
acl Safe_ports port 280        # http-mgmt
acl Safe_ports port 488        # gss-http
acl Safe_ports port 591        # filemaker
acl Safe_ports port 777        # multiling http
acl boese_seiten url_regex  "/etc/squid3/boese_seiten"
acl CONNECT method CONNECT
 
 
##http_access allow xinux_users
#http_access allow xinux !boese_seiten
#http_access allow manager localhost
 
http_access allow all auth
http_access deny manager
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow localhost
http_access deny all
#never_direct allow all
</pre>


=restart=
=Auf dem Client=
  service squid3 start
  Bitte beim Client den Namen in die Proxy Konfiguration eintragen.
=client Machine=
Set your proxy to server dewey.xinux.org using port 3128. It is important that you use the fully qualified domain name and NOT the IP address.


=debugging=
=debugging=

Aktuelle Version vom 7. Oktober 2024, 14:09 Uhr

als ads client aufnehmen

zuerst als client aufnehemen https://xinux.net/index.php/Ubuntu-ads-client#.2Fetc.2Fkrb5.conf

msktutils

create computeraccount and a local keytab

  • kinit administrator
  • msktutil -c -b "CN=Computers" -s HTTP/proxy.lab34.linuggs.de -k /etc/squid/krb5.keytab --computer-name proxy --upn HTTP/proxy.lab34.linuggs.de --server win2022.lab34.linuggs.de -N
  • chown proxy:proxy /etc/squid/krb5.keytab

Kerberos Ticket update

  • msktutil --auto-update --computer-name proxy --server win2022.lab34.linuggs.de -s HTTP/proxy.lab34.linuggs.de -k /etc/squid/krb5.keytab -N

Crontab

  • echo "0 4 * * * msktutil --auto-update --computer-name proxy --server win2022.lab34.linuggs.de -s HTTP/proxy.lab34.linuggs.de -k /etc/squid/krb5.keytab -N" | crontab

/etc/default/squid3

  • systemctl edit squid
Environment="KRB5_KTNAME=/etc/squid/krb5.keytab"

/etc/squid/squid.conf

acl localnet src 0.0.0.1-0.255.255.255 # RFC 1122 "this" network (LAN)
acl localnet src 10.0.0.0/8            # RFC 1918 local private network (LAN)
acl localnet src 100.64.0.0/10         # RFC 6598 shared address space (CGN)
acl localnet src 169.254.0.0/16        # RFC 3927 link-local (directly plugged) machines
acl localnet src 172.16.0.0/12         # RFC 1918 local private network (LAN)
acl localnet src 192.168.0.0/16                # RFC 1918 local private network (LAN)
acl localnet src fc00::/7              # RFC 4193 local private network range
acl localnet src fe80::/10             # RFC 4291 link-local (directly plugged) machines
acl SSL_ports port 443
acl Safe_ports port 80         # http
acl Safe_ports port 21         # ftp
acl Safe_ports port 443                # https
acl Safe_ports port 70         # gopher
acl Safe_ports port 210                # wais
acl Safe_ports port 1025-65535 # unregistered ports
acl Safe_ports port 280                # http-mgmt
acl Safe_ports port 488                # gss-http
acl Safe_ports port 591                # filemaker
acl Safe_ports port 777                # multiling http
auth_param negotiate program /usr/lib/squid/negotiate_kerberos_auth -k /etc/squid/krb5.keytab -d
auth_param negotiate children 1000
auth_param negotiate keep_alive on
acl auth proxy_auth REQUIRED
http_access deny !auth
http_access allow auth
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow localhost manager
http_access deny manager
include /etc/squid/conf.d/*.conf
http_access allow localhost
http_access deny all
http_port 3128
coredump_dir /var/spool/squid
refresh_pattern ^ftp:          1440    20%     10080
refresh_pattern ^gopher:       1440    0%      1440
refresh_pattern -i (/cgi-bin/|\?) 0    0%      0
refresh_pattern .              0       20%     4320

restart

  • systemctl restart squid

Auf dem Client

Bitte beim Client den Namen in die Proxy Konfiguration eintragen.

debugging

sources

Abgerufen von „https://wiki.ixheim.de/index.php?title=Squid-kerberos&oldid=57324“