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Printing QR-Code in Software hosts allow = 192.168.1. 192.168.2.

hosts allow = 192.168.1. 192.168.2.
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To enable printing, allow Samba to load the printer descriptions from your printcap file. Although you can specify a particular print system type with the printing entry, this usually is unnecessary.
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printcap name = /etc/printcap load printers = yes
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You can use a guest user to make resources available to anyone without requiring a password. A guest user login would handle any users who log in without a specific account. On Linux systems, by default Samba will use the nobody user as the guest user. Alternatively, you can set up and designate a specific user to use as the guest user. You designate the guest user with the "guest account" entry in the smb.conf file. The commented smb.conf file provided by Samba currently lists a commented entry for setting up a guest user called pcguest. You can
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make this a user you want used as the guest user. Be sure to add the guest user to the password file:
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guest account = pcguest
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On SWAT you can specify a guest account entry on the GLOBALS page. By default this is already set to the nobody user.
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As noted previously, user-level security requires that each user log in to the Samba server using passwords. Samba can use either clear text or encrypted passwords, although current Windows clients support encrypted passwords. You can use the smbpasswd command to add and change Samba passwords. On SWAT, you enable password encryption on the GLOBALS page and manage passwords on the Passwords page, as shown in Figure 38-4. On the Server Password Management section you can add, change, remove, enable, or disable users. To add a new user, enter the user name and password, then click Add New User. As the root user on the Samba server, you can add new passwords as well as enable or disable current ones. Normal users can use the Client/Server Password Management section to change their own passwords.
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Figure 38-4: SWAT Passwords page
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Homes Section
The Homes section specifies default controls for accessing a user home directory through the SMB protocols by remote users. Setting the Browseable entry to No prevents the client from listing the files with the browser, such as that used by a file manager to display files and
directories (for example, Explorer on Windows). The Writable entry specifies whether users have read and write control over files in their home directories. On SWAT, you simply select the SHARES page, select the Homes entry from the drop-down menu, and click Choose Share (see Figure 38-2).
[homes] comment = Home Directories browseable = no writable = yes
Printers Section
The Printers section specifies the default controls for accessing printers. These are used for printers for which no specific sections exist. In this case, Samba uses printers defined in the server's printcap file. In this context, setting Browseable to No simply hides the Printers section from the client, not the printers. The path entry specifies the location of the spool directory Samba will use for printer files. To enable printing at all, the printable entry must be set to Yes. To allow guest users to print, set the Guest OK entry to Yes. The Writable entry set to No prevents any kind of write access, other than the printer's management of spool files. On SWAT, select the PRINTER page and the Printers entry in the drop-down menu, and then select Choose Printers. A standard implementation of the Printers section is shown here:
[printers] comment = All Printers path = /var/spool/samba browseable = No guest ok = Yes writable = No printable = Yes
If you can't print, be sure to check the Default Print entry. This specifies the command the server actually uses to print documents.
Sections for specific shared resources, such as directories on your system, are usually placed after the Homes and Printers sections. For a section defining a shared directory, enter a label for the system. Then, on separate lines, enter options for its pathname and the different permissions you want to set. In the path = option, specify the full pathname for the directory. The comment = option holds the label to be given the share. You can make a directory writable, public, or read-only. You can control access to the directory with the Valid Users entry. With this entry, you can list those users permitted access. For those options not set, the defaults entered in the Global, Home, and Printer segments are used. On SWAT, you use the SHARES page to create and edit shared directories. Select the one you want to edit from the drop-down menu and click Choose Share. The Basic View shows the commonly used entries. For entries such as Valid Users, you need to select the Advanced View. Be sure to click Commit Changes before you move on to another Share or Printers section (see Figure 38-5).
Figure 38-5: SWAT Samba Share The following example is the myprojects share generated by SWAT from the share page shown in Figure 38-5. Here the /myprojects directory is defined as a share resource that is open to any user with guest access.
[myprojects] comment = Great Project Ideas path = /myprojects writeable = Yes guest ok = Yes printable = Yes
To limit access to certain users, you can list a set of valid users. Setting the public option to No closes it off from access by others.
[mynewmusic] comment = Service path = //home/specialprojects valid users = mark public = no writable = yes printable = no
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