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234 Start-Up assume both server and client to be members of the same subnet without the need for additional routing. a Use ping hostname (replace hostname with the hostname of the server) to check whether each one of them is up and responding to the network. If this command is successful, it tells you that the host you were looking for is up and running and that the name service for your network is configured correctly. If ping fails with destination host unreachable, either your system or the desired server is not properly configured or down. Check whether your system is reachable by running ping your_hostname from another machine. If you succeed to reach your machine from another machine, it is the server that is not running at all or not configured correctly. If ping fails with unknown host, the name service is not configured correctly or the hostname used was incorrect. Use ping -n ipaddress to try to connect to this host without name service. If this is successful, check the spelling of the hostname and for a misconfigured name service in your network. For further checks on this matter, refer to Step 4.b (page 234). If ping still fails, either your network card is not configured correctly or your network hardware is faulty. Refer to Step 4.c (page 235) for information about this. b Use host hostname to check whether the hostname of the server you are trying to connect to is properly translated into an IP address and vice versa. If this command returns the IP address of this host, the name service is up and running. If this the host command fails, check all network configuration files relevant to name and address resolution on your host: /etc/resolv.conf This file is used to keep track of the name server and domain you are currently using. It can be modified manually or be automatically adjusted by YaST or DHCP. Automatic adjustment is preferable. However, make sure that this file has the following structure and all network addresses and domain names are correct: search fully_qualified_domain_name nameserveripaddress_of_nameserver
This file can contain more than one name server address, but at least one of them must be correct to provide name resolution to your host. If needed, adjust this file using the YaST DNS and Hostname module. If your network connection is handled via DHCP, enable DHCP to change hostname and name service information by selecting Change Hostname via DHCP and Update Name Servers and Search List via DHCP in the YaST DNS and Hostname module. /etc/nsswitch.conf This file tells Linux where to look for name service information. It should look like this: ... hosts: files dns networks: files dns ... The dns entry is vital. It tells Linux to use an external name server. Normally, these entries are automatically made by YaST, but it never hurts to check. If all the relevant entries on the host are correct, let your system administrator check the DNS server configuration for the correct zone information. For detailed information about DNS, refer to Chapter The Domain Name System (↑Reference). If you have made sure that the DNS configuration of your host and the DNS server are correct, proceed with checking the configuration of your network and network device. c If your system cannot establish a connection to a network server and you have excluded name service problems from the list of possible culprits, check the configuration of your network card. Use the command ifconfig network_device (executed as root) to check whether this device was properly configured. Make sure that both inet address and Mask are configured correctly. An error in the IP address or a missing bit in your network mask would render your network configuration unusable. If necessary, perform this check on the server as well. d If name service and network hardware are properly configured and running, but some external network connections still get long time-outs or fail entirely, Common Problems and Their Solutions 235
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SUSE Linux 10.1 April 07, 2006 Star
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Contents About This Guide vii Part
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6 Customizing Your KDE Desktop 165
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viii Start-Up SUSE Linux Reference
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Part I. Setup
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4 Start-Up 2 Reboot the system. 3 A
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6 Start-Up Use the function keys in
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8 Start-Up dows but does not provid
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10 Start-Up The partitions to creat
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12 Start-Up Figure 1.2 Possible Opt
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14 Start-Up The first bar graph sho
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16 Start-Up Other Filters Click the
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18 Start-Up 1.8.5 Keyboard Layout S
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20 Start-Up 1.9.2 root Password roo
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22 Start-Up If you have multiple ne
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24 Start-Up Figure 1.5 Entering the
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26 Start-Up settings. LDAP client c
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28 Start-Up AutoYaST is a system fo
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30 Start-Up To start YaST in text m
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32 Start-Up Figure 2.2 YaST Package
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34 Start-Up NOTE Because language-s
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36 Start-Up Installation Summary Af
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38 Start-Up Figure 2.3 Conflict Man
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40 Start-Up Find the list of availa
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42 Start-Up Backup During the updat
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44 Start-Up 2.4.2 Infrared Device C
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46 Start-Up satisfied with the sett
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48 Start-Up is provided at http://c
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50 Start-Up If YaST is unable to de
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52 Start-Up Standard Boot Floppy Us
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54 Start-Up point of the hard disks
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56 Start-Up If you partition manual
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58 Start-Up To edit a PCI ID, selec
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60 Start-Up Figure 2.5 Setting the
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62 Start-Up 2.7.1 Mail Transfer Age
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64 Start-Up LDAP Client If using LD
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66 Start-Up The YaST Remote Adminis
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68 Start-Up 2.9.2 Group Management
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70 Start-Up the options Current Dir
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72 Start-Up /proc/iomem This displa
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74 Start-Up Press Enter to start th
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2.11.3 Starting the Individual Modu
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78 Start-Up superuser Permits all r
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80 Start-Up Figure 2.8 Card and Mon
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82 Start-Up The tabs in the row at
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84 Start-Up Activate 3-Button Emula
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86 Start-Up 2.14 Troubleshooting Al
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Working with the Shell When booting
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IMPORTANT: No News Is Good News The
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3.1.2 Linux Directory Structure Bec
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in Programs needed early in the boo
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directory where you ran the command
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and paths with the help of →| , y
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sponding command. Both standard out
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such as installing new programs, ar
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3.2.2 Modifying File Permissions Ch
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3.3.1 File Commands The following s
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u g o User Group Others For access,
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locate patterns This command is onl
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-t filesystem Specify the file syst
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ps [options] [process ID] If run wi
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eboot [options] Does the same as ha
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H J K L Move one character to the l
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• A number of vim sources are ava
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124 Start-Up configuration of the s
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Figure 4.3 Generating a Search Inde
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128 Start-Up Another possibility to
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130 Start-Up 4.7 Package Documentat
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132 Start-Up concentrates on standa
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Part III. Desktop
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138 Start-Up boot. In this case, yo
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140 Start-Up main menu. Alter a sho
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142 Start-Up structure for accessin
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144 Start-Up Figure 5.3 Main Menu S
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146 Start-Up topmost directory is r
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148 Start-Up • Select the object
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150 Start-Up The group determines t
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152 Start-Up 4 Specify the folder t
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154 Start-Up where you want the tex
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156 Start-Up network passwords and
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158 Start-Up Figure 5.8 Ark: File A
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160 Start-Up Start KJobViewer from
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162 Start-Up filename for the image
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164 Start-Up To update system fonts
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166 Start-Up 5 Apply your changes a
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168 Start-Up In the Icons section,
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170 Start-Up shortcuts. For more in
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172 Start-Up The Country/Region & L
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174 Start-Up Login Manager configur
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176 Start-Up The program managing t
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178 Start-Up 7.2 Logging Out When y
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180 Start-Up To remove an icon from
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182 Start-Up The Places Menu The Pl
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Page 204 and 205: 194 Start-Up To open a file display
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Page 208 and 209: 198 Start-Up account, open a file d
Page 210 and 211: 200 Start-Up To add a new channel,
Page 212 and 213: 202 Start-Up 8.1 Hardware Settings
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Page 221: Part IV. Troubleshooting
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Page 240 and 241: 230 Start-Up 9.4.3 Login Successful
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Page 258 and 259: 248 Start-Up We endeavor to help yo
Page 260 and 261: ping, 115 ps, 115 reboot, 117 rm, 1
Page 262 and 263: utilities, 195-200 grep, 112 groups
Page 264 and 265: S Samba clients, 66 servers, 66 SaX
Page 266: servers, 66 Samba clients, 26 scann
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