Block guest VPN
Sazzad Hossain
sazzad.suzon89 at gmail.com
Wed Sep 22 15:19:15 CEST 2021
Hello Alan,
Thanks for your time.
Another question, although after those two changes [mentioned above], the
server is still allowing the GUEST users to login.What i am doing wrong?
Any help will be thankfully appreciated.
Have a nice day!
__________________________________________________________________________________________________________________
(0) Received Access-Request Id 164 from 127.0.0.1:56127 to 127.0.1.1:1812
length 76
(0) User-Name = "riedel"
(0) User-Password = "testtest1A"
(0) NAS-IP-Address = 127.0.1.1
(0) NAS-Port = 1812
(0) Message-Authenticator = 0xf39ecbe7fd56fcc239189fe5e548c9cc
(0) # Executing section authorize from file
/etc/freeradius/3.0/sites-enabled/default
(0) authorize {
(0) policy filter_username {
(0) if (&User-Name) {
(0) if (&User-Name) -> TRUE
(0) if (&User-Name) {
(0) if (&User-Name =~ / /) {
(0) if (&User-Name =~ / /) -> FALSE
(0) if (&User-Name =~ /@[^@]*@/ ) {
(0) if (&User-Name =~ /@[^@]*@/ ) -> FALSE
(0) if (&User-Name =~ /\.\./ ) {
(0) if (&User-Name =~ /\.\./ ) -> FALSE
(0) if ((&User-Name =~ /@/) && (&User-Name !~ /@(.+)\.(.+)$/)) {
(0) if ((&User-Name =~ /@/) && (&User-Name !~ /@(.+)\.(.+)$/)) ->
FALSE
(0) if (&User-Name =~ /\.$/) {
(0) if (&User-Name =~ /\.$/) -> FALSE
(0) if (&User-Name =~ /@\./) {
(0) if (&User-Name =~ /@\./) -> FALSE
(0) } # if (&User-Name) = notfound
(0) } # policy filter_username = notfound
(0) [preprocess] = ok
(0) [chap] = noop
(0) [mschap] = noop
(0) [digest] = noop
(0) suffix: Checking for suffix after "@"
(0) suffix: No '@' in User-Name = "riedel", looking up realm NULL
(0) suffix: No such realm "NULL"
(0) [suffix] = noop
(0) eap: No EAP-Message, not doing EAP
(0) [eap] = noop
*(0) files: Searching for user in group "Gast"*
rlm_ldap (ldap): Reserved connection (0)
(0) files: EXPAND (uid=%{%{Stripped-User-Name}:-%{User-Name}})
(0) files: --> (uid=riedel)
(0) files: Performing search in "ou=people,dc=fr" with filter
"(uid=riedel)", scope "sub"
(0) files: Waiting for search result...
(0) files: User object found at DN
"uid=riedel,ou=people,dc=uni-potsdam,dc=de"
(0) files: Checking user object's memberOf attributes
(0) files: Performing unfiltered search in "uid=riedel,ou=people,dc=fr",
scope "base"
(0) files: Waiting for search result...
(0) files: Search returned no results
(0) files: Can't check membership attributes, user object not found
rlm_ldap (ldap): Released connection (0)
Need 5 more connections to reach 10 spares
rlm_ldap (ldap): Opening additional connection (5), 1 of 27 pending slots
used
rlm_ldap (ldap): Connecting to ldap://10.9.25.56:389
rlm_ldap (ldap): Waiting for bind result...
rlm_ldap (ldap): Bind successful
(0) files: User is not a member of "Gast"
(0) [files] = noop
rlm_ldap (ldap): Reserved connection (1)
(0) ldap: EXPAND (uid=%{%{Stripped-User-Name}:-%{User-Name}})
(0) ldap: --> (uid=riedel)
(0) ldap: Performing search in "ou=people,dc=fr" with filter
"(uid=riedel)", scope "sub"
(0) ldap: Waiting for search result...
(0) ldap: User object found at DN "uid=riedel,ou=people,dc=fr"
(0) ldap: Processing user attributes
(0) ldap: control:NT-Password :=
0x3937316136326634626234393063623639653936363163616333356132323734
rlm_ldap (ldap): Released connection (1)
(0) [ldap] = updated
(0) if (Ldap-Group == "Gast") {
(0) Searching for user in group "Gast"
rlm_ldap (ldap): Reserved connection (2)
(0) Using user DN from request "uid=riedel,ou=people,dc=fr"
(0) Checking user object's memberOf attributes
(0) Performing unfiltered search in "uid=riedel,ou=people,dc=fr",
scope "base"
(0) Waiting for search result...
(0) Search returned no results
(0) Can't check membership attributes, user object not found
rlm_ldap (ldap): Released connection (2)
(0) User is not a member of "Gast"
(0) if (Ldap-Group == "Gast") -> FALSE
(0) [expiration] = noop
(0) [logintime] = noop
(0) pap: Normalizing NT-Password from hex encoding, 32 bytes -> 16 bytes
(0) [pap] = updated
(0) } # authorize = updated
(0) Found Auth-Type = PAP
(0) # Executing group from file /etc/freeradius/3.0/sites-enabled/default
(0) Auth-Type PAP {
(0) pap: Login attempt with password
(0) pap: Comparing with "known-good" NT-Password
(0) pap: User authenticated successfully
(0) [pap] = ok
(0) } # Auth-Type PAP = ok
(0) # Executing section post-auth from file
/etc/freeradius/3.0/sites-enabled/default
(0) post-auth {
(0) if (session-state:User-Name && reply:User-Name && request:User-Name
&& (reply:User-Name == request:User-Name)) {
(0) if (session-state:User-Name && reply:User-Name && request:User-Name
&& (reply:User-Name == request:User-Name)) -> FALSE
(0) update {
(0) No attributes updated for RHS &session-state:
(0) } # update = noop
(0) [exec] = noop
(0) policy remove_reply_message_if_eap {
(0) if (&reply:EAP-Message && &reply:Reply-Message) {
(0) if (&reply:EAP-Message && &reply:Reply-Message) -> FALSE
(0) else {
(0) [noop] = noop
(0) } # else = noop
(0) } # policy remove_reply_message_if_eap = noop
(0) } # post-auth = noop
*(0) Sent Access-Accept Id 164 from 127.0.1.1:1812 <http://127.0.1.1:1812>
to 127.0.0.1:56127 <http://127.0.0.1:56127> length 0*
(0) Finished request
Waking up in 4.9 seconds.
(0) Cleaning up request packet ID 164 with timestamp +5
On Wed, Sep 22, 2021 at 2:49 PM Alan DeKok <aland at deployingradius.com>
wrote:
> On Sep 22, 2021, at 3:06 AM, Sazzad Hossain <sazzad.suzon89 at gmail.com>
> wrote:
> > I want to block our Guest users to use our VPN and i wrote following
> under /
> > sites-enable/default.
> >
> > *ldap*
> >
> > * if (Ldap-Group [*] == "Gast") { update control {
> > AUth-Type = reject } }*
>
> Why add the [*] ?
>
> All of the documentation and examples say to just use what you did here:
>
> > and under /freeradius/users
> >
> >
> > *DEFAULT Ldap-Group == "Gast", Auth-Type := Reject Fall-Through =
> > yes*
>
> There's no [*] here, which is correct.
>
> Alan DeKok.
>
>
> -
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