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1 Different methods for online detection
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2 --------------------------------------
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3
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4 /etc/ppp/peers/<provider>
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5 -------------------------
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6
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7 The scripts /etc/ppp/ip-{up,down}.d/{1,99}masqmail make use of the variable
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8 $IPPARAM, which you can define in your /etc/ppp/peers/<provider>
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9 configuration with the ippparam option, eg:
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10
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11 ippparam arcor
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12
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13 If this is set, $IPPARAM will be written to a 'route' file. Using some
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14 awk magic, the scripts finds out which file you have defined for
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15 online detection (if online_detect=file) and writes the value of
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16 $IPPARAM to this file. Masqmail then uses this file to determine its
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17 online status.
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18
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19
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20 /etc/network/interfaces
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21 -----------------------
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22
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23 You can use the /etc/network/interfaces script to tell Masqmail
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24 when a link goes up, and Masqmail shall flush its queue and/or fetch mail.
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25
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26 This is an example for a static interface:
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27
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28 iface eth0 inet static
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29 # mroute/name used by ip-up.d/masqmail BDL May02
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30 name SNRC
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31 address 130.130.10.233
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32 netmask 255.255.255.0
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33 gateway 130.130.10.254
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34
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35 (This example is from Ben Low. Thanks, Ben :-))
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36
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37 If you use Masqmail on a notebook, you can define several interfaces,
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38 depending on the network you are in. Read
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39 /usr/share/doc/ifupdown/examples/interfaces.gz
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40 for examples.
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41
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42 The scripts /etc/network/if-{up,down}.d/1masqmail make use of the NAME
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43 in the same way as the /etc/ppp/ip-{up,down}.d/ scripts. See above.
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44
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45
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46 guessnet and /etc/network/interfaces
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47 ------------------------------------
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48
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49 Another nice tool is guessnet. See /usr/share/doc/guessnet/README.gz,
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50 if you have guessnet installed. You can use it in combination with the
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51 method described above for /etc/network/interfaces.
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52
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53
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54 guessnet and the 'online_pipe' option
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55 -------------------------------------
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56
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57 Alternatively you can also use guessnet directly to check the online
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58 status. To do this, set in
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59 /etc/masqmail/masqmail.conf
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60
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61 #
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62 online_detect=pipe
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63 online_pipe="/usr/bin/guessnet < /etc/masqmail/guessnet.conf"
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64 #
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65
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66 and create a file
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67 /etc/masqmail/guessnet.conf
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68
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69 Example:
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70 192.168.0.35 00:10:5A:24:C5:B6 192.168.0.1 default
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71 192.168.2.1 00:80:AD:97:D5:2D 192.168.0.1 home
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72
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73
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74 masqdialer and the 'online_pipe' option
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75 ---------------------------------------
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76
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77 Yet another possibility for ppp dialups is masqdialer:
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78
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79 Example:
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80 #
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81 online_detect=pipe
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82 online_pipe="/usr/bin/mservdetect 192.168.1.2 224"
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83 #
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84
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85 This is useful if you have a gateway with masqdialer running
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86 and Masqmail on another host behind ('behind' as seen from the internet)
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87
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88 Note:
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89 The online detect method 'mserver' is deprecated, and this debian
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90 package comes with that option disabled. You can still recompile the
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91 package with the ./configure option --enable-mserver, but this may be
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92 removed in future version of Masqmail.
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