Leopard’s new Finder now lists computers under the “Shared” section on the left hand panel. This is pretty snazzy. Not only can you manually mount a server via Apple + K (Connect to server), all local servers show up here. However it seems that if your Mac and/or Linux based machine doesn’t have some sort of zeroconf (aka Bonjour) service advertising AFP, then it shows up as a Samba (aka PC Server) under Shared.

Assumption:
I assume you have netatalk configured correctly, as in your rebuild it correctly with dhx support (not by default in Debian). . You can read more about that here.
So under Debian the fix is as follows:

1. sudo su – or su -
2. aptitude install avahi-daemon
3. echo “- -noddp -uamlist uams_randnum.so,uams_dhx.so” > /etc/netatalk/afpd.conf
4. vi /etc/nsswitch
change your hosts line to be like this:
hosts: files dns mdns4
5. paste in (no quotes):
‘cd /etc/avahi/services; wget http://www.disgruntled-dutch.com/media/afpd.service’
6. /etc/init.d/netatalk restart && /etc/init.d/avahi-daemon restart && tail -n70 /var/log/syslog

Check if it started up like for example:

Oct 26 11:03:42 thenas afpd[26279]: Registering CNID module [last]
Oct 26 11:03:42 thenas afpd[26279]: Registering CNID module [cdb]
Oct 26 11:03:42 thenas afpd[26279]: Registering CNID module [dbd]
Oct 26 11:03:42 thenas afpd[26279]: Loading ConfigFile
Oct 26 11:03:42 thenas afpd[26279]: main: atp_open: Cannot assign requested address
Oct 26 11:03:42 thenas afpd[26279]: dsi_tcp: hostname 'thenas' resolves to loopback address
Oct 26 11:03:42 thenas afpd[26279]: dsi_tcp: '192.168.1.250' on interface 'eth1' will be used instead.
Oct 26 11:03:42 thenas afpd[26279]: ASIP started on 192.168.1.250:548(5) (2.0.3)
Oct 26 11:03:42 thenas afpd[26279]: Sucessfully registered afp://192.168.1.250/?NAME=thenas&ZONE= with SRVLOC
Oct 26 11:03:42 thenas afpd[26279]: uam: loading (/usr/lib/netatalk/uams_dhx.so)
Oct 26 11:03:42 thenas afpd[26279]: uam: uams_dhx.so loaded
Oct 26 11:03:42 thenas afpd[26279]: uam: loading (/usr/lib/netatalk/uams_guest.so)
Oct 26 11:03:42 thenas afpd[26279]: uam: uams_guest.so loaded
Oct 26 11:03:42 thenas afpd[26279]: uam: loading (/usr/lib/netatalk/uams_clrtxt.so)
Oct 26 11:03:42 thenas afpd[26279]: uam: uams_clrtxt.so loaded
Oct 26 11:03:42 thenas afpd[26279]: uam: loading (/usr/lib/netatalk/uams_passwd.so)
Oct 26 11:03:42 thenas afpd[26279]: uam_load(uams_passwd.so): mod_symbol error for symbol uams_passwd
Oct 26 11:03:42 thenas afpd[26279]: uam: uams_passwd.so load failure
Oct 26 11:03:42 thenas afpd[26279]: uam: loading (/usr/lib/netatalk/uams_gss.so)
Oct 26 11:03:42 thenas avahi-daemon[26246]: Got SIGTERM, quitting.
Oct 26 11:03:42 thenas avahi-daemon[26246]: Leaving mDNS multicast group on interface eth1.IPv4 with address 192.168.1.250.
Oct 26 11:03:42 thenas afpd[26279]: uam: uams_gss.so loaded
Oct 26 11:03:42 thenas afpd[26279]: uam: "Client Krb v2" available
Oct 26 11:03:42 thenas afpd[26279]: uam: "Cleartxt Passwrd" available
Oct 26 11:03:42 thenas afpd[26279]: uam: "No User Authent" available
Oct 26 11:03:42 thenas afpd[26279]: uam: "DHCAST128" available
Oct 26 11:03:42 thenas afpd[26279]: main: dsi_init: Address already in use
Oct 26 11:03:42 thenas afpd[26279]: uam: loading (/usr/lib/netatalk/uams_randnum.so)
Oct 26 11:03:42 thenas afpd[26279]: uam: uams_randnum.so loaded
Oct 26 11:03:42 thenas afpd[26279]: uam: loading (/usr/lib/netatalk/uams_dhx.so)
Oct 26 11:03:42 thenas afpd[26279]: uam: uams_dhx.so loaded
Oct 26 11:03:42 thenas afpd[26279]: Finished parsing Config File
Oct 26 11:03:42 thenas avahi-daemon[26290]: Found user 'avahi' (UID 107) and group 'avahi' (GID 106).
Oct 26 11:03:42 thenas avahi-daemon[26290]: Successfully dropped root privileges.
Oct 26 11:03:42 thenas avahi-daemon[26290]: avahi-daemon 0.6.21 starting up.
Oct 26 11:03:42 thenas avahi-daemon[26290]: Successfully called chroot().
Oct 26 11:03:42 thenas avahi-daemon[26290]: Successfully dropped remaining capabilities.
Oct 26 11:03:42 thenas avahi-daemon[26290]: Loading service file /services/afpd.service.
Oct 26 11:03:42 thenas avahi-daemon[26290]: Joining mDNS multicast group on interface eth1.IPv4 with address 192.168.1.250.
Oct 26 11:03:42 thenas avahi-daemon[26290]: New relevant interface eth1.IPv4 for mDNS.
Oct 26 11:03:42 thenas avahi-daemon[26290]: Network interface enumeration completed.
Oct 26 11:03:42 thenas avahi-daemon[26290]: Registering new address record for fe80::213:d4ff:fe0a:2da8 on eth1.*.
Oct 26 11:03:42 thenas avahi-daemon[26290]: Registering new address record for 192.168.1.250 on eth1.IPv4.
Oct 26 11:03:42 thenas avahi-daemon[26290]: Registering HINFO record with values 'I686'/'LINUX'.
Oct 26 11:03:43 thenas avahi-daemon[26290]: Server startup complete. Host name is thenas.local. Local service cookie is 962578462.
Oct 26 11:03:44 thenas avahi-daemon[26290]: Service "thenas" (/services/afpd.service) successfully established.

You are good to go!

EDIT: Had to escape the XML code.
EDIT2: added a ‘wget step’ due to mangled XML code on this blog.