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/content/2014/09/05-manualy-connecting-ethernet.rst

https://gitlab.com/pschwendenman/whatsdoom.com
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  1. -----------------------------------
    2. 

  2. Manually Connecting Ethernet
    3. 

  3. -----------------------------------
    4. 

  4. 

  5. :date: 2014-09-05
    6. 

  6. :category: blog
    7. 

  7. :tags: ethernet, cli tools
    8. 

  8. 

  9. I broke my computers internet installing wicd.
    10. 

  10. 

  11. Getting internet back
    12. 

  12. ----------------------
    13. 

  13. 

  14. 1. Check the interfaces
    15. 

  15. 

  16. 	::
    17. 

  17. 

  18. 		$ ifconfig
    19. 

  19. 

  20. #. Check eth0 explicitly
    21. 

  21. 

  22. 	For whatever reason, my eth0 wasn't showing up until I explicitly
    23. 

  23. 	specified it.
    24. 

  24. 

  25. 	::
    26. 

  26. 

  27. 		$ ifconfig eth0
    28. 

  28. 

  29. #. Get an ip address
    30. 

  30. 

  31. 	::
    32. 

  32. 

  33. 		$ sudo ifconfig eth0 192.168.1.100
    34. 

  34. 

  35. #. Connect to the outside internet
    36. 

  36. 

  37. 	::
    38. 

  38. 

  39. 		sudo route add -net 0.0.0.0 gw 192.168.1.1
    40. 

  40. 

  41. #. Make dns resolve
    42. 

  42. 

  43. 	- Edit /etc/resolve.conf to include::
    44. 

  44. 

  45. 		nameserver 8.8.8.8
    46. 

  46. 		nameserver 8.8.4.4
    47. 

  47. 

  48. Fixing wicd
    49. 

  49. ------------
    50. 

  50. 

  51. 1. Try wicd-curses
    52. 

  52. 

  53. 	Wicd-curses fails to start up. With a long python traceback
    54. 

  54. 

  55. 	.. code:: pytb
    56. 

  56. 

  57.             Can't connect to the daemon, trying to start it automatically...
    58. 

  58.             Traceback (most recent call last):
    59. 

  59.               File "/usr/share/wicd/curses/wicd-curses.py", line 1043, in <module>
    60. 

  60.                 setup_dbus()
    61. 

  61.               File "/usr/share/wicd/curses/wicd-curses.py", line 1031, in setup_dbus
    62. 

  62.                 dbus_ifaces = dbusmanager.get_dbus_ifaces()
    63. 

  63.               File "/usr/lib/python2.7/dist-packages/wicd/dbusmanager.py", line 36, in
    64. 

  64.             get_dbus_ifaces
    65. 

  65.                 return DBUS_MANAGER.get_dbus_ifaces()
    66. 

  66.               File "/usr/lib/python2.7/dist-packages/wicd/dbusmanager.py", line 62, in
    67. 

  67.             get_dbus_ifaces
    68. 

  68.                 if not self._dbus_ifaces: connect_to_dbus()
    69. 

  69.               File "/usr/lib/python2.7/dist-packages/wicd/dbusmanager.py", line 48, in
    70. 

  70.             connect_to_dbus
    71. 

  71.                 return DBUS_MANAGER.connect_to_dbus()
    72. 

  72.               File "/usr/lib/python2.7/dist-packages/wicd/dbusmanager.py", line 79, in
    73. 

  73.             connect_to_dbus
    74. 

  74.                 proxy_obj = self._bus.get_object("org.wicd.daemon", '/org/wicd/daemon')
    75. 

  75.               File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 241, in
    76. 

  76.             get_object
    77. 

  77.                 follow_name_owner_changes=follow_name_owner_changes)
    78. 

  78.               File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 248, in
    79. 

  79.             __init__
    80. 

  80.                 self._named_service = conn.activate_name_owner(bus_name)
    81. 

  81.               File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 180, in
    82. 

  82.             activate_name_owner
    83. 

  83.                 self.start_service_by_name(bus_name)
    84. 

  84.               File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 278, in
    85. 

  85.             start_service_by_name
    86. 

  86.                 'su', (bus_name, flags)))
    87. 

  87.               File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in
    88. 

  88.             call_blocking
    89. 

  89.                 message, timeout)
    90. 

  90.             dbus.exceptions.DBusException: org.freedesktop.DBus.Error.ServiceUnknown:
    91. 

  91.             The name org.wicd.daemon was not provided by any .service files
    92. 

  92.             Error in sys.excepthook:
    93. 

  93.             Traceback (most recent call last):
    94. 

  94.               File "/usr/lib/python2.7/dist-packages/apport_python_hook.py", line 96, in
    95. 

  95.             apport_excepthook
    96. 

  96.                 dbus_service_unknown_analysis(exc_obj, pr)
    97. 

  97.               File "/usr/lib/python2.7/dist-packages/apport_python_hook.py", line 172,
    98. 

  98.             in dbus_service_unknown_analysis
    99. 

  99.                 cp = ConfigParser(interpolation=None)
    100. 

  100.             TypeError: __init__() got an unexpected keyword argument 'interpolation'
    101. 

  101. 

  102.             Original exception was:
    103. 

  103.             Traceback (most recent call last):
    104. 

  104.               File "/usr/share/wicd/curses/wicd-curses.py", line 1043, in <module>
    105. 

  105.                 setup_dbus()
    106. 

  106.               File "/usr/share/wicd/curses/wicd-curses.py", line 1031, in setup_dbus
    107. 

  107.                 dbus_ifaces = dbusmanager.get_dbus_ifaces()
    108. 

  108.               File "/usr/lib/python2.7/dist-packages/wicd/dbusmanager.py", line 36, in
    109. 

  109.             get_dbus_ifaces
    110. 

  110.                 return DBUS_MANAGER.get_dbus_ifaces()
    111. 

  111.               File "/usr/lib/python2.7/dist-packages/wicd/dbusmanager.py", line 62, in
    112. 

  112.             get_dbus_ifaces
    113. 

  113.                 if not self._dbus_ifaces: connect_to_dbus()
    114. 

  114.               File "/usr/lib/python2.7/dist-packages/wicd/dbusmanager.py", line 48, in
    115. 

  115.             connect_to_dbus
    116. 

  116.                 return DBUS_MANAGER.connect_to_dbus()
    117. 

  117.               File "/usr/lib/python2.7/dist-packages/wicd/dbusmanager.py", line 79, in
    118. 

  118.             connect_to_dbus
    119. 

  119.                 proxy_obj = self._bus.get_object("org.wicd.daemon", '/org/wicd/daemon')
    120. 

  120.               File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 241, in
    121. 

  121.             get_object
    122. 

  122.                 follow_name_owner_changes=follow_name_owner_changes)
    123. 

  123.               File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 248, in
    124. 

  124.             __init__
    125. 

  125.                 self._named_service = conn.activate_name_owner(bus_name)
    126. 

  126.               File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 180, in
    127. 

  127.             activate_name_owner
    128. 

  128.                 self.start_service_by_name(bus_name)
    129. 

  129.               File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 278, in
    130. 

  130.             start_service_by_name
    131. 

  131.                 'su', (bus_name, flags)))
    132. 

  132.               File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in
    133. 

  133.             call_blocking
    134. 

  134.                 message, timeout)
    135. 

  135.             dbus.exceptions.DBusException: org.freedesktop.DBus.Error.ServiceUnknown:
    136. 

  136.             The name org.wicd.daemon was not provided by any .service files
    137. 

  137. 

  138. 	:relevant post: http://ubuntuforums.org/showthread.php?t=1115640
    139. 

  139. 

  140. #. Wicd's daemon
    141. 

  141. 	
    142. 

  142. 	So, Wicd's daemon isn't running. Lets check that::
    143. 

  143. 	
    144. 

  144. 		$  sudo service wicd status
    145. 

  145. 		* wicd is not running
    146. 

  146. 		 
    147. 

  147. 	And try and start it?
    148. 

  148. 

  149. 	.. code:: pytb
    150. 

  150. 	
    151. 

  151.             $  sudo service wicd start
    152. 

  152.             Traceback (most recent call last):
    153. 

  153.               File "/usr/share/wicd/daemon/wicd-daemon.py", line 1859, in <module>
    154. 

  154.                 main(sys.argv)
    155. 

  155.               File "/usr/share/wicd/daemon/wicd-daemon.py", line 1708, in main
    156. 

  156.                 os.symlink(dest, backup_location)
    157. 

  157.             OSError: [Errno 17] File exists
    158. 

  158. 

  159. 	Manually?
    160. 

  160. 

  161. 	.. code:: pytb
    162. 

  162. 

  163.             $  sudo wicd -foe
    164. 

  164.             Traceback (most recent call last):
    165. 

  165.               File "/usr/share/wicd/daemon/wicd-daemon.py", line 1859, in <module>
    166. 

  166.                 main(sys.argv)
    167. 

  167.               File "/usr/share/wicd/daemon/wicd-daemon.py", line 1708, in main
    168. 

  168.                 os.symlink(dest, backup_location)
    169. 

  169.             OSError: [Errno 17] File exists
    170. 

  170. 

  171. 	Ahh, lets look for that issue.
    172. 

  172. 

  173. #. Fixing daemon
    174. 

  174. 

  175. 	I found a bug on launchpad and basically, `/etc/resolve.conf` points
    176. 

  176. 	towards a relative link rather than an absolute one so when wicd
    177. 

  177. 	copies the symlink it points to a different path. I did this::
    178. 

  178. 

  179. 		# rm /etc/resolv.conf
    180. 

  180. 		# ln -s /run/resolvconf/resolv.conf /etc/resolve.conf
    181. 

  181. 		# rm /var/lib/wicd/resolv.conf.orig
    182. 

  182. 		# ln -s /etc/resolv.conf /var/lib/wicd/resolv.conf.orig
    183. 

  183. 

  184. 	Then I retried starting up the daemon and success!
    185. 

  185. 

  186. 	:relevant bug: https://bugs.launchpad.net/ubuntu/+source/wicd/+bug/1132529
    187. 

  187.