Thanks to Robert and also to Sundar for their replies.   What was driving me 
crazy was that the samba logs showed nothing.  I added the ipchains entries 
Robert suggested and it worked!   (Well, actually, I had to fix some other 
problems, but this time there were actually entries in the samba log files-- 
and I DID get it working.)  I guess I didn't realize that the medium security 
level was so strict -- oh well, it was a learning experience.

Thanks agian,
Vaughn

On Friday 11 January 2002 10:10, you wrote:
> The default firewall rules on a Red Hat 7.X install do not permit NMB
> (i.e. Samba)
>
> You can go and configure this with the GUI, but you need to add something
> like this to /etc/sysconfig/ipchains:
>
> -A input -s 0/0 -d 0/0 137:139 -p udp -i eth0 -j ACCEPT
> -A input -s 0/0 -d 0/0 137:139 -p tcp -i eth0 -j ACCEPT
>
> I could be slightly off on the exact syntax. This is from memory. It
> should, however, provide a starting point.
>
> Good Luck!
>
> Bob.
>
> On 2002.01.11 04:12 Vaughn Treude wrote:
> > Hello all:
> >
> > First for the good news:  for the first time, I get to use Linux in a
> > real-life project!  One of the things this project requires is
> > interfacing to
> > Windows boxes, so one of the things I need to do is get Samba running on
> > my
> > old Winbook notebook, on which I've installed Red Hat 7.1.  I seem to
> > have it
> > almost there, but not quite.   I can ping the notebook from elsewhere on
> > the
> > network, so I know that the NIC is working.  I can go outbound from the
> > notebook using smbclient with no problems.  The samba daemons both run,
> > and
> > the log files don't indicate any errors.  I can see the notebook in the
> > Network Neighborhood from Explorer in Windows.  But if I click on it
> > there,
> > there's a long pause followed by a message that says the machine is "not
> > available."  I get a similar response when trying to mount it via "net
> > use"
> > in the DOS prompt:  it says it can't locate the machine on the network.
> > I've
> > set the debug level to 3 for both daemons and I still don't see any
> > indication of errors, nor do I see any record of any login attempts from
> > external machines.  So I must have something set up wrong.  The wierd
> > thing
> > is that I used a working version of smb.conf from a RH 7.2 machine on the
> >
> > same network, just modifying the machine name.  I'll list that below,
> > just in
> > case there's something that's marginal.  I've also set up the smbpasswd
> > file
> > and created two entries in it (though I don't think I'm getting that far.
> >
> > Any suggestions you could give me would be greatly appreciated.
> >
> > Thanks,
> > Vaughn Treude
> > Nakota Software, Inc.
> > Custom Industrial Software Development
> >
> > The smb.conf file follows below:
> >
> > # This is the main Samba configuration file. You should read the
> > # smb.conf(5) manual page in order to understand the options listed
> > # here. Samba has a huge number of configurable options (perhaps too
> > # many!) most of which are not shown in this example
> > #
> > # Any line which starts with a ; (semi-colon) or a # (hash)
> > # is a comment and is ignored. In this example we will use a #
> > # for commentry and a ; for parts of the config file that you
> > # may wish to enable
> > #
> > # NOTE: Whenever you modify this file you should run the command
> > "testparm"
> > # to check that you have not many any basic syntactic errors.
> > #
> > #======================= Global Settings
> > =====================================
> > [global]
> >
> > # workgroup = NT-Domain-Name or Workgroup-Name
> >    workgroup = WORKGROUP
> >
> > # server string is the equivalent of the NT Description field
> >    server string = Vaughn's Machine
> >
> > # This option is important for security. It allows you to restrict
> > # connections to machines which are on your local network. The
> > # following example restricts access to two C class networks and
> > # the "loopback" interface. For more examples of the syntax see
> > # the smb.conf man page
> > ;   hosts allow = 192.168.1. 192.168.2. 127.
> > # note - I've obscured the IP address, but I know it's valid in the real
> > file
> >     hosts allow = x.0.0. 127.
> >
> > # if you want to automatically load your printer list rather
> > # than setting them up individually then you'll need this
> >    printcap name = /etc/printcap
> >    load printers = yes
> >
> > # It should not be necessary to spell out the print system type unless
> > # yours is non-standard. Currently supported print systems include:
> > # bsd, sysv, plp, lprng, aix, hpux, qnx
> >    printing = lprng
> >
> > # Uncomment this if you want a guest account, you must add this to
> > /etc/passwd
> > # otherwise the user "nobody" is used
> >   guest account = pcguest
> >
> > # this tells Samba to use a separate log file for each machine
> > # that connects
> >    log file = /var/log/samba/%m.log
> >
> > # Put a capping on the size of the log files (in Kb).
> >    max log size = 0
> >
> > # Security mode. Most people will want user level security. See
> > # security_level.txt for details.
> >    security = user
> > # Use password server option only with security = server or
> > # security = domain
> > ;   password server = <NT-Server-Name>
> >
> > # Password Level allows matching of _n_ characters of the password for
> > # all combinations of upper and lower case.
> > ;  password level = 8
> > ;  username level = 8
> >
> > # You may wish to use password encryption. Please read
> > # ENCRYPTION.txt, Win95.txt and WinNT.txt in the Samba documentation.
> > # Do not enable this option unless you have read those documents
> >   encrypt passwords = yes
> >   smb passwd file = /etc/samba/smbpasswd
> >
> > # The following is needed to keep smbclient from spouting spurious errors
> > # when Samba is built with support for SSL.
> > ;   ssl CA certFile = /usr/share/ssl/certs/ca-bundle.crt
> >
> > # The following are needed to allow password changing from Windows to
> > # update the Linux sytsem password also.
> > # NOTE: Use these with 'encrypt passwords' and 'smb passwd file' above.
> > # NOTE2: You do NOT need these to allow workstations to change only
> > #        the encrypted SMB passwords. They allow the Unix password
> > #        to be kept in sync with the SMB password.
> > ;  unix password sync = Yes
> > ;  passwd program = /usr/bin/passwd %u
> > ;  passwd chat = *New*UNIX*password* %n\n *ReType*new*UNIX*password* %n\n
> >
> > *passwd:*all*authentication*tokens*updated*successfully*
> >
> > # Unix users can map to different SMB User names
> > ;  username map = /etc/samba/smbusers
> >
> > # Using the following line enables you to customise your configuration
> > # on a per machine basis. The %m gets replaced with the netbios name
> > # of the machine that is connecting
> > ;   include = /etc/samba/smb.conf.%m
> >
> > # Most people will find that this option gives better performance.
> > # See speed.txt and the manual pages for details
> >    socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
> >
> > # Configure Samba to use multiple interfaces
> > # If you have multiple network interfaces then you must list them
> > # here. See the man page for details.
> > ;   interfaces = 192.168.12.2/24 192.168.13.2/24
> >
> > # Configure remote browse list synchronisation here
> > #  request announcement to, or browse list sync from:
> > #	a specific host or from / to a whole subnet (see below)
> > ;   remote browse sync = 192.168.3.25 192.168.5.255
> > # Cause this host to announce itself to local subnets here
> > ;   remote announce = 192.168.1.255 192.168.2.44
> >
> > # Browser Control Options:
> > # set local master to no if you don't want Samba to become a master
> > # browser on your network. Otherwise the normal election rules apply
> > ;   local master = no
> >
> > # OS Level determines the precedence of this server in master browser
> > # elections. The default value should be reasonable
> > ;   os level = 33
> >
> > # Domain Master specifies Samba to be the Domain Master Browser. This
> > # allows Samba to collate browse lists between subnets. Don't use this
> > # if you already have a Windows NT domain controller doing this job
> > ;   domain master = yes
> >
> > # Preferred Master causes Samba to force a local browser election on
> > startup
> > # and gives it a slightly higher chance of winning the election
> > ;   preferred master = yes
> >
> > # Enable this if you want Samba to be a domain logon server for
> > # Windows95 workstations.
> >    domain logons = yes
> >
> > # if you enable domain logons then you may want a per-machine or
> > # per user logon script
> > # run a specific logon batch file per workstation (machine)
> > ;   logon script = %m.bat
> > # run a specific logon batch file per username
> > ;   logon script = %U.bat
> >
> > # All NetBIOS names must be resolved to IP Addresses
> > # 'Name Resolve Order' allows the named resolution mechanism to be
> > specified
> > # the default order is "host lmhosts wins bcast". "host" means use the
> > unix
> > # system gethostbyname() function call that will use either /etc/hosts OR
> > # DNS or NIS depending on the settings of /etc/host.config,
> > /etc/nsswitch.conf
> > # and the /etc/resolv.conf file. "host" therefore is system configuration
> > # dependant. This parameter is most often of use to prevent DNS lookups
> > # in order to resolve NetBIOS names to IP Addresses. Use with care!
> > # The example below excludes use of name resolution for machines that are
> > NOT
> > # on the local network segment
> > # - OR - are not deliberately to be known via lmhosts or via WINS.
> > ; name resolve order = wins lmhosts bcast
> >
> > # Windows Internet Name Serving Support Section:
> > # WINS Support - Tells the NMBD component of Samba to enable it's WINS
> > Server
> > ;   wins support = yes
> >
> > # WINS Server - Tells the NMBD components of Samba to be a WINS Client
> > #	Note: Samba can be either a WINS Server, or a WINS Client, but
> > NOT both
> > ;   wins server = w.x.y.z
> >
> > # WINS Proxy - Tells Samba to answer name resolution queries on
> > # behalf of a non WINS capable client, for this to work there must be
> > # at least one	WINS Server on the network. The default is NO.
> > ;   wins proxy = yes
> >
> > # DNS Proxy - tells Samba whether or not to try to resolve NetBIOS names
> > # via DNS nslookups. The built-in default for versions 1.9.17 is yes,
> > # this has been changed in version 1.9.18 to no.
> >    dns proxy = no
> >
> > # Case Preservation can be handy - system default is _no_
> > # NOTE: These can be set on a per share basis
> > ;  preserve case = no
> > ;  short preserve case = no
> > # Default case is normally upper case for all DOS files
> > ;  default case = lower
> > # Be very careful with case sensitivity - it can break things!
> > ;  case sensitive = no
> >
> > #============================ Share Definitions
> > ==============================
> > [homes]
> >    comment = Home Directories
> >    browseable = no
> >    writable = yes
> >    valid users = %S
> >    create mode = 0664
> >    directory mode = 0775
> >
> > # Un-comment the following and create the netlogon directory for Domain
> > Logons
> > ; [netlogon]
> > ;   comment = Network Logon Service
> > ;   path = /home/netlogon
> > ;   guest ok = yes
> > ;   writable = no
> > ;   share modes = no
> >
> >
> > # Un-comment the following to provide a specific roving profile share
> > # the default is to use the user's home directory
> > ;[Profiles]
> > ;    path = /home/profiles
> > ;    browseable = no
> > ;    guest ok = yes
> >
> >
> > # NOTE: If you have a BSD-style print system there is no need to
> > # specifically define each individual printer
> > [printers]
> >    comment = All Printers
> >    path = /var/spool/samba
> >    browseable = no
> > # Set public = yes to allow user 'guest account' to print
> >    guest ok = no
> >    writable = no
> >    printable = yes
> >
> > # This one is useful for people to share files
> > ;[tmp]
> > ;   comment = Temporary file space
> > ;   path = /tmp
> > ;   read only = no
> > ;   public = yes
> >
> > # A publicly accessible directory, but read only, except for people in
> > # the "staff" group
> > ;[public]
> > ;   comment = Public Stuff
> > ;   path = /home/samba
> > ;   public = yes
> > ;   writable = yes
> > ;   printable = no
> > ;   write list = @staff
> >
> > # Other examples.
> > #
> > # A private printer, usable only by fred. Spool data will be placed in
> > fred's
> > # home directory. Note that fred must have write access to the spool
> > directory,
> > # wherever it is.
> > ;[fredsprn]
> > ;   comment = Fred's Printer
> > ;   valid users = fred
> > ;   path = /homes/fred
> > ;   printer = freds_printer
> > ;   public = no
> > ;   printable = yes
> >
> > # A private directory, usable only by fred. Note that fred requires write
> > # access to the directory.
> > ;[fredsdir]
> > ;   comment = Fred's Service
> > ;   path = /usr/somewhere/private
> > ;   valid users = fred
> > ;   public = no
> > ;   writable = yes
> > ;   printable = no
> >
> > # a service which has a different directory for each machine that
> > connects
> > # this allows you to tailor configurations to incoming machines. You
> > could
> > # also use the %u option to tailor it by user name.
> > # The %m gets replaced with the machine name that is connecting.
> > ;[pchome]
> > ;  comment = PC Directories
> > ;  path = /usr/pc/%m
> > ;  public = no
> > ;  writable = yes
> >
> > # A publicly accessible directory, read/write to all users. Note that all
> >
> > files
> > # created in the directory by users will be owned by the default user, so
> > # any user with access can delete any other user's files. Obviously this
> > # directory must be writable by the default user. Another user could of
> > course
> > # be specified, in which case all files would be owned by that user
> > instead.
> > ;[public]
> > ;   path = /home/share
> > ;   public = yes
> > ;   only guest = yes
> > ;   writable = yes
> > ;   printable = no
> >
> > # The following two entries demonstrate how to share a directory so that
> > two
> > # users can place files there that will be owned by the specific users.
> > In
> > this
> > # setup, the directory should be writable by both users and should have
> > the
> > # sticky bit set on it to prevent abuse. Obviously this could be extended
> > to
> > # as many users as required.
> > ;[myshare]
> > ;   comment = Mary's and Fred's stuff
> > ;   path = /usr/somewhere/shared
> > ;   valid users = mary fred
> > ;   public = no
> > ;   writable = yes
> > ;   printable = no
> > ;   create mask = 0765
> >
> >
> > ________________________________________________
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> >
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