Create a new version of paste:

auth_param negotiate program /usr/lib/squid3/negotiate_wrapper_auth --ntlm /usr/bin/ntlm_auth --diagnostics --helper-protocol=squid-2.5-ntlmssp --kerberos /usr/lib/squid3/negotiate_kerberos_auth -r -s HTTP/server-91-03.mlvz.local@MLVZ.LOCAL
auth_param negotiate children 200 startup=50 idle=10
auth_param negotiate keep_alive off
auth_param ntlm program /usr/bin/ntlm_auth --diagnostics --helper-protocol=squid-2.5-ntlmssp
auth_param ntlm children 100 startup=20 idle=5
auth_param ntlm keep_alive off
auth_param basic program /usr/lib/squid3/basic_ldap_auth -v 3 -P -R -b "dc=mlvz,dc=local" -D beluga@mlvz.local -W /etc/squid3/conf_param_ldappass.txt -f sAMAccountName=%s -h tckem.mlvz.local kem-dc-01.mlvz.local
auth_param basic children 20
auth_param basic realm "KOM-AD01-GW10 SQUID Proxy Server Basic authentication!"
auth_param basic credentialsttl 2 hours
external_acl_type memberof ttl=3600 ipv4 %LOGIN /usr/lib/squid3/ext_ldap_group_acl -v 3 -P -R -K -b "dc=mlvz,dc=local" -D beluga@mlvz.local -W /etc/squid3/conf_param_ldappass.txt -f "(&(objectclass=person)(sAMAccountName=%v)(memberOf:1.2.840.113556.1.4.1941:=cn=%g,OU=Security Groups,DC=mlvz,DC=local))" -h tckem.mlvz.local kem-dc-01.mlvz.local
acl auth proxy_auth REQUIRED
acl BlockedURLRegex urlpath_regex -i "/etc/squid3/conf_param_urlregex_blocked.txt"
acl BlockedAccess       external memberof "/etc/squid3/conf_param_groups_blocked.txt"
acl RestrictedAccess    external memberof "/etc/squid3/conf_param_groups_restricted.txt"
acl StandardAccess      external memberof "/etc/squid3/conf_param_groups_standard.txt"
acl FullAccess          external memberof "/etc/squid3/conf_param_groups_full_auth.txt"
acl AnonymousAccess     external memberof "/etc/squid3/conf_param_groups_full_anon.txt"
acl allowedsites        dstdomain "/etc/squid3/conf_param_sites_allowed.txt"
acl blockedsites        dstdomain "/etc/squid3/conf_param_sites_blocked.txt"
acl prioritysites       dstdomain "/etc/squid3/conf_param_sites_priority.txt"
acl LocalWUServers    src       "/etc/squid3/conf_param_computers_wsus.txt"
acl GlobalWUSites     dstdomain "/etc/squid3/conf_param_sites_wsus.txt"
acl localnet src 192.168.91.0/24        # RFC1918 possible internal network
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 CONNECT method CONNECT
http_access deny BlockedURLRegex
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow localhost manager
http_access allow localnet manager
http_access deny manager
http_access allow GlobalWUSites LocalWUServers
http_access allow prioritysites localnet
http_access deny !auth
http_access deny BlockedAccess all
http_access allow allowedsites localnet
http_access deny RestrictedAccess all
http_access allow AnonymousAccess auth localnet
http_access allow FullAccess auth localnet
http_access deny blockedsites
http_access allow StandardAccess auth localnet
http_access deny all
http_port 192.168.91.251:3128
http_port 127.0.0.1:3128
hierarchy_stoplist cgi-bin ?
forward_max_tries 25
cache_mem 2048 MB
maximum_object_size_in_memory 2048 KB
memory_replacement_policy heap GDSF
cache_replacement_policy heap LFUDA
cache_dir ufs /mnt/squid-cache/ 7000 16 256
maximum_object_size 32768 KB
access_log daemon:/var/log/squid3/access.log squid !AnonymousAccess
cache_log /var/log/squid3/cache.log
coredump_dir /var/spool/squid3
refresh_pattern ^ftp:           1440    20%     10080
refresh_pattern ^gopher:        1440    0%      1440
refresh_pattern -i (/cgi-bin/|\?) 0     0%      0
refresh_pattern (Release|Packages(.gz)*)$      0       20%     2880
refresh_pattern .               0       20%     4320
cache_mgr LebedevDO@mlvz.net
httpd_suppress_version_string on
visible_hostname SQUID-XXX
error_directory /usr/share/squid3/errors/ru
error_default_language ru
dns_v4_first on
forwarded_for delete
cachemgr_passwd ### all