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Samba Notes

Attempting to connect to a windows share, on a domain, in kubuntu 18.04 and I encountered some issues. (Note: ran into this in CentOS7, ubuntu 16.04, 14.04 and others)

Normally smb://server/share/ would work in my file browser (using kde the file browser is dolphin)

When I ran some tests: ~~~ smbclient -L servername ~~~

I received the error:

SPNEGO(gse_krb5) NEG_TOKEN_INIT failed: NT_STATUS_NO_MEMORY

Looking around there were references to adjusting settings in smb.conf (adding client max protocol = NT1 did not help).

I recalled something like this from years ago so I looked back in my notes.

Keep in mind this is on an active directory domain so this will need to be adjusted to your domain.

sudo apt install krb5-user libpam-krb5

Edit the /etc/krb5.conf ~~~ [logging] default = FILE:/var/log/krb5lib.log [libdefaults] ticket_lifetime = 24000 default_realm = DOMAIN default_tkt_enctypes = RC4-HMAC des3-hmac-sha1 des-cbc-crc default_tgs_enctypes = RC4-HMAC des3-hmac-sha1 des-cbc-crc [realms] DOMAIN = { kdc = server.domain admin_server = server.domain default_domain = domain } [domain_realm] .domain = DOMAIN domain = DOMAIN ~~~

Unsure if case is necessary.

Now see if you can authenticate:

$ kinit user
Password for [email protected]: ...
$ klist
Ticket cache: FILE:/tmp/krb5cc_1000
Default principal: [email protected]

Valid starting       Expires              Service principal
05/30/2018 08:47:22  05/30/2018 18:47:22  krbtgt/[email protected]
        renew until 05/31/2018 08:47:19

Once this was working, I was able to navigate to smb://server/share in dolphin and connect to my shares.

Hope this helps out if you are stuck with the same issue.

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