Chapter 2. How to Install and Test SAMBA

Binary packages of samba are included in almost any Linux or - Unix distribution. There are also some packages available at + UNIX distribution. There are also some packages available at the samba homepage. -

If you need to compile samba from source, check the - appropriate appendix chapter.

If you have already installed samba, or if your operating system +

If you need to compile samba from source, check + the chapter about compiling samba from scratch.

If you have already installed samba, or if your operating system was pre-installed with samba, then you may not need to bother with this chapter. On the other hand, you may want to read this chapter anyhow - for information about updating samba.

Configuring samba (smb.conf)

+ for information about updating samba.

Configuring samba (smb.conf)

Samba's configuration is stored in the smb.conf file, that usually resides in /etc/samba/smb.conf or /usr/local/samba/lib/smb.conf. You can either edit this file yourself or do it using one of the many graphical tools that are available, such as the web-based interface swat, that is included with samba. -

Example Configuration

There are sample configuration files in the examples subdirectory in the distribution. I suggest you read them carefully so you can see how the options go together in practice. See the man page for all the options.

The simplest useful configuration file would be something like this:

-	[global]
-		workgroup = MYGROUP
-
-	[homes]
-		guest ok = no
-		read only = no
-

Example 2.1. Simplest possible smb.conf file

[global]

workgroup = MIDEARTH

[homes]

guest ok = no

read only = no

This will allow connections by anyone with an account on the server, using either - their login name or "homes" as the service name. + their login name or homes" as the service name. (Note that the workgroup that Samba must also be set.)

- Make sure you put the smb.conf file in the same place - you specified in the Makefile (the default is to - look for it in /usr/local/samba/lib/). + Make sure you put the smb.conf file in the correct place + (usually in /etc/samba).

For more information about security settings for the - [homes] share please refer to the chapter - Securing Samba. -

Test your config file with testparm

+ [homes] share please refer to + "Securing Samba". +

Test your config file with testparm

It's important that you test the validity of your smb.conf file using the testparm program. If testparm runs OK then it will list the loaded services. If not it will give an error message. @@ -50,7 +41,7 @@ Make sure it runs OK and that the services look reasonable before proceeding.

Always run testparm again when you change smb.conf! -

SWAT

SWAT is a web-based interface that helps you configure samba. SWAT might not be available in the samba package on your platform, but in a separate package. Please read the swat manpage @@ -66,9 +57,10 @@ machine but connecting from a remote machine leaves your connection open to password sniffing as passwords will be sent in the clear over the wire. -

Try listing the shares available on your - server

$ smbclient -L - yourhostname

You should get back a list of shares available on +

Try listing the shares available on your + server

+$ smbclient -L yourhostname
+

You should get back a list of shares available on your server. If you don't then something is incorrectly setup. Note that this method can also be used to see what shares are available on other LanManager clients (such as WfWg).

If you choose user level security then you may find @@ -76,68 +68,31 @@ See the smbclient man page for details. (you can force it to list the shares without a password by adding the option -U% to the command line. This will not work - with non-Samba servers)

Try connecting with the unix client

$ smbclient - //yourhostname/aservice

Typically the yourhostname + with non-Samba servers)

Try connecting with the unix client

+$ smbclient  //yourhostname/aservice
+

Typically the yourhostname would be the name of the host where you installed smbd. The aservice is any service you have defined in the smb.conf file. Try your user name if you just have a [homes] section in smb.conf.

For example if your unix host is bambi - and your login name is fred you would type:

$ smbclient //bambi/fred -

Try connecting from a DOS, WfWg, Win9x, WinNT, - Win2k, OS/2, etc... client

Try mounting disks. eg:

C:\WINDOWS\> net use d: \\servername\service -

Try printing. eg:

C:\WINDOWS\> net use lpt1: - \\servername\spoolservice

C:\WINDOWS\> print filename -

What If Things Don't Work?

Then you might read the file chapter - Diagnosis and the - FAQ. If you are still stuck then try to follow - the Analysing and Solving Problems chapter - Samba has been successfully installed at thousands of sites worldwide, - so maybe someone else has hit your problem and has overcome it.

Common Errors

-The following questions and issues get raised on the samba mailing list over and over again. -

Why are so many smbd processes eating memory?

-“ -Site that is running Samba on an AIX box. They are sharing out about 2 terabytes using samba. -Samba was installed using smitty and the binaries. We seem to be experiencing a memory problem -with this box. When I do a svmon -Pu the monitoring program shows that smbd has several -processes of smbd running: -” -

- “ -Is samba suppose to start this many different smbd processes? Or does it run as one smbd process? Also -is it normal for it to be taking up this much memory? -” -

+ and your login name is fred you would type:

+$ smbclient //bambi/fred
+

Try connecting from another SMB client

Try mounting disks. from a DOS, Windows or OS/2 client, eg:

+C:\> net use d: \\servername\service
+

Try printing. eg:

-Inuse * 4096 = amount of memory being used by this process
-
-     Pid Command        Inuse      Pin     Pgsp  Virtual   64-bit    Mthrd
-   20950 smbd           33098     1906      181     5017        N        N
-   22262 smbd            9104     1906      5410
-   21060 smbd            9048     1906      181     5479        N        N
-   25972 smbd            8678     1906      181     5109        N        N
-   24524 smbd            8674     1906      181     5105        N        N
-   19262 smbd            8582     1906      181     5013        N        N
-   20722 smbd            8572     1906      181     5003        N        N
-   21454 smbd            8572     1906      181     5003        N        N
-   28946 smbd            8567     1906      181     4996        N        N
-   24076 smbd            8566     1906      181     4996        N        N
-   20138 smbd            8566     1906      181     4996        N        N
-   17608 smbd            8565     1906      181     4996        N        N
-   21820 smbd            8565     1906      181     4996        N        N
-   26940 smbd            8565     1906      181     4996        N        N
-   19884 smbd            8565     1906      181     4996        N        N
-    9912 smbd            8565     1906      181     4996        N        N
-   25800 smbd            8564     1906      181     4995        N        N
-   20452 smbd            8564     1906      181     4995        N        N
-   18592 smbd            8562     1906      181     4993        N        N
-   28216 smbd            8521     1906      181     4954        N        N
-   19110 smbd            8404     1906      181     4862        N        N
-
-   Total memory used:  841,592,832 bytes
+C:\> net use lpt1:	\\servername\spoolservice

C:\> print filename
+

What If Things Don't Work?

Then you might read the file chapter diagnosis + and the FAQ. If you are still stuck then refer to "Analysing and solving problems". + Samba has been successfully installed at thousands of sites worldwide, + so maybe someone else has hit your problem and has overcome it.

Common Errors

+The following questions and issues get raised on the samba mailing list over and over again. +

Large number of smbd processes

Samba consists on three core programs: nmbd, smbd, winbindd. nmbd is the name server message daemon, smbd is the server message daemon, winbindd is the daemon that @@ -152,4 +107,9 @@ connection made. That is why you are seeing so many of them, one (1) per client

winbindd will run as one or two daemons, depending on whether or not it is being run in "split mode" (in which case there will be two instances). -

I'm getting "open_oplock_ipc: Failed to get local UDP socket for address 100007f. Error was Cannot assign requested" in the logs

Your loopback device isn't working correctly. Make sure it's running.

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"open_oplock_ipc: Failed to get local UDP socket for address 100007f. Error was Cannot assign requested"

Your loopback device isn't working correctly. Make sure it's configured properly. The loopback device is an internal (virtual) network device with + the ip address 127.0.0.1. Read your OS documentation for details + on how to configure the loopback on your system.

"The network name cannot be found"

+ This error can be caused by one of these misconfigurations: +

You specified an nonexisting path for the share in smb.conf
The user you are trying to access the share with does not + have sufficient permissions to access the path for the share. Both read (r) and access (x) should be possible.
The share you are trying to access does not exist.