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| 131 | .IX Title "GVPE 5" |
126 | .IX Title "GVPE 5" |
| 132 | .TH GVPE 5 "2005-03-23" "1.9" "GNU Virtual Private Ethernet" |
127 | .TH GVPE 5 "2013-07-10" "2.24" "GNU Virtual Private Ethernet" |
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130 | .if n .ad l |
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131 | .nh |
| 133 | .SH "NAME" |
132 | .SH "NAME" |
| 134 | GNU\-VPE \- Overview of the GNU Virtual Private Ethernet suite. |
133 | GNU\-VPE \- Overview of the GNU Virtual Private Ethernet suite. |
| 135 | .SH "DESCRIPTION" |
134 | .SH "DESCRIPTION" |
| 136 | .IX Header "DESCRIPTION" |
135 | .IX Header "DESCRIPTION" |
| 137 | \&\s-1GVPE\s0 is a suite designed to provide a virtual private network for multiple |
136 | \&\s-1GVPE\s0 is a suite designed to provide a virtual private network for multiple |
| 138 | nodes over an untrusted network. This document first gives an introduction |
137 | nodes over an untrusted network. This document first gives an introduction |
| 139 | to VPNs in general and then describes the specific implementation of \s-1GVPE\s0. |
138 | to VPNs in general and then describes the specific implementation of \s-1GVPE\s0. |
| 140 | .Sh "\s-1WHAT\s0 \s-1IS\s0 A \s-1VPN\s0?" |
139 | .SS "\s-1WHAT\s0 \s-1IS\s0 A \s-1VPN\s0?" |
| 141 | .IX Subsection "WHAT IS A VPN?" |
140 | .IX Subsection "WHAT IS A VPN?" |
| 142 | \&\s-1VPN\s0 is an acronym, it stands for: |
141 | \&\s-1VPN\s0 is an acronym, it stands for: |
| 143 | .IP "\(bu" 4 |
142 | .IP "Virtual" 4 |
| 144 | .IX Xref "Virtual" |
143 | .IX Item "Virtual" |
| 145 | Virtual means that no physical network is created (of course), but a |
144 | Virtual means that no physical network is created (of course), but a |
| 146 | network is \fIemulated\fR by creating multiple tunnels between the member |
145 | network is \fIemulated\fR by creating multiple tunnels between the member |
| 147 | nodes by encapsulating and sending data over another transport network. |
146 | nodes by encapsulating and sending data over another transport network. |
| 148 | .Sp |
147 | .Sp |
| 149 | Usually the emulated network is a normal \s-1IP\s0 or Ethernet, and the transport |
148 | Usually the emulated network is a normal \s-1IP\s0 or Ethernet, and the transport |
| 150 | network is the Internet. However, using a \s-1VPN\s0 system like \s-1GVPE\s0 to connect |
149 | network is the Internet. However, using a \s-1VPN\s0 system like \s-1GVPE\s0 to connect |
| 151 | nodes over other untrusted networks such as Wireless \s-1LAN\s0 is not uncommon. |
150 | nodes over other untrusted networks such as Wireless \s-1LAN\s0 is not uncommon. |
| 152 | .IP "\(bu" 4 |
151 | .IP "Private" 4 |
| 153 | .IX Xref "Private" |
152 | .IX Item "Private" |
| 154 | Private means that non-participating nodes cannot decode (\*(L"sniff)\*(R" nor |
153 | Private means that non-participating nodes cannot decode (\*(L"sniff)\*(R" nor |
| 155 | inject (\*(L"spoof\*(R") packets. This means that nodes can be connected over |
154 | inject (\*(L"spoof\*(R") packets. This means that nodes can be connected over |
| 156 | untrusted networks such as the public Internet without fear of being |
155 | untrusted networks such as the public Internet without fear of being |
| 157 | eavesdropped while at the same time being able to trust data sent by other |
156 | eavesdropped while at the same time being able to trust data sent by other |
| 158 | nodes. |
157 | nodes. |
| 159 | .Sp |
158 | .Sp |
| 160 | In the case of \s-1GVPE\s0, even participating nodes cannot sniff packets |
159 | In the case of \s-1GVPE\s0, even participating nodes cannot sniff packets |
| 161 | send to other nodes or spoof packets as if sent from other nodes, so |
160 | send to other nodes or spoof packets as if sent from other nodes, so |
| 162 | communications between any two nodes is private to those two nodes. |
161 | communications between any two nodes is private to those two nodes. |
| 163 | .IP "\(bu" 4 |
162 | .IP "Network" 4 |
| 164 | .IX Xref "Network" |
163 | .IX Item "Network" |
| 165 | Network means that more than two parties can participate in the network, |
164 | Network means that more than two parties can participate in the network, |
| 166 | so for instance it's possible to connect multiple branches of a company |
165 | so for instance it's possible to connect multiple branches of a company |
| 167 | into a single network. Many so-called \*(L"vpn\*(R" solutions only create |
166 | into a single network. Many so-called \*(L"\s-1VPN\s0\*(R" solutions only create |
| 168 | point-to-point tunnels, which in turn can be used to build larger |
167 | point-to-point tunnels, which in turn can be used to build larger |
| 169 | networks. |
168 | networks. |
| 170 | .Sp |
169 | .Sp |
| 171 | \&\s-1GVPE\s0 provides a true multi-point network in wich any number of nodes (at |
170 | \&\s-1GVPE\s0 provides a true multi-point network in which any number of nodes (at |
| 172 | least a few dozen in practise, the theoretical limit is 4095 nodes) can |
171 | least a few dozen in practise, the theoretical limit is 4095 nodes) can |
| 173 | participate. |
172 | participate. |
| 174 | .Sh "\s-1GVPE\s0 \s-1DESIGN\s0 \s-1GOALS\s0" |
173 | .SS "\s-1GVPE\s0 \s-1DESIGN\s0 \s-1GOALS\s0" |
| 175 | .IX Subsection "GVPE DESIGN GOALS" |
174 | .IX Subsection "GVPE DESIGN GOALS" |
| 176 | .IP "\s-1SIMPLE\s0 \s-1DESIGN\s0" 4 |
175 | .IP "\s-1SIMPLE\s0 \s-1DESIGN\s0" 4 |
| 177 | .IX Item "SIMPLE DESIGN" |
176 | .IX Item "SIMPLE DESIGN" |
| 178 | Cipher, \s-1HMAC\s0 algorithms and other key parameters must be selected |
177 | Cipher, \s-1HMAC\s0 algorithms and other key parameters must be selected |
| 179 | at compile time \- this makes it possible to only link in algorithms |
178 | at compile time \- this makes it possible to only link in algorithms |
| … | |
… | |
| 195 | address, e.g. to ensure that packets from a specific \s-1IP\s0 address come, in |
194 | address, e.g. to ensure that packets from a specific \s-1IP\s0 address come, in |
| 196 | fact, from a specific host that is associated with that \s-1IP\s0 and not from |
195 | fact, from a specific host that is associated with that \s-1IP\s0 and not from |
| 197 | another host. |
196 | another host. |
| 198 | .SH "PROGRAMS" |
197 | .SH "PROGRAMS" |
| 199 | .IX Header "PROGRAMS" |
198 | .IX Header "PROGRAMS" |
| 200 | Vpe comes with two programs: one daemon (\f(CW\*(C`gvpe\*(C'\fR) and one control program |
199 | Gvpe comes with two programs: one daemon (\f(CW\*(C`gvpe\*(C'\fR) and one control program |
| 201 | (\f(CW\*(C`gvpectrl\*(C'\fR). |
200 | (\f(CW\*(C`gvpectrl\*(C'\fR). |
| 202 | .IP "gvpectrl" 4 |
201 | .IP "gvpectrl" 4 |
| 203 | .IX Item "gvpectrl" |
202 | .IX Item "gvpectrl" |
| 204 | Is used to generate the keys, check and give an overview of of the |
203 | This program is used to generate the keys, check and give an overview of of the |
| 205 | configuration and contorl the daemon (restarting etc.). |
204 | configuration and to control the daemon (restarting etc.). |
| 206 | .IP "gvpe" 4 |
205 | .IP "gvpe" 4 |
| 207 | .IX Item "gvpe" |
206 | .IX Item "gvpe" |
| 208 | Is the daemon used to establish and maintain connections to the other |
207 | This is the daemon used to establish and maintain connections to the other |
| 209 | network members. It should be run on the gateway machine. |
208 | network nodes. It should be run on the gateway of each \s-1VPN\s0 subnet. |
| 210 | .SH "COMPILETIME CONFIGURATION" |
209 | .SH "COMPILETIME CONFIGURATION" |
| 211 | .IX Header "COMPILETIME CONFIGURATION" |
210 | .IX Header "COMPILETIME CONFIGURATION" |
| 212 | Please have a look at the \f(CW\*(C`gvpe.osdep(5)\*(C'\fR manpage for platform-specific |
211 | Please have a look at the \f(CW\*(C`gvpe.osdep(5)\*(C'\fR manpage for platform-specific |
| 213 | information. |
212 | information. |
| 214 | .PP |
213 | .PP |
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214 | Gvpe hardcodes most encryption parameters. While this reduces flexibility, |
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215 | it makes the program much simpler and helps making buffer overflows |
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216 | impossible under most circumstances. |
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217 | .PP |
| 215 | Here are a few recipes for compiling your gvpe, showing the extremes |
218 | Here are a few recipes for compiling your gvpe, showing the extremes |
| 216 | (fast, small, insecure \s-1OR\s0 slow, large, more secure), between you should |
219 | (fast, small, insecure \s-1OR\s0 slow, large, more secure), between which you |
| 217 | choose: |
220 | should choose: |
| 218 | .Sh "\s-1AS\s0 \s-1LOW\s0 \s-1PACKET\s0 \s-1OVERHEAD\s0 \s-1AS\s0 \s-1POSSIBLE\s0" |
221 | .SS "\s-1AS\s0 \s-1LOW\s0 \s-1PACKET\s0 \s-1OVERHEAD\s0 \s-1AS\s0 \s-1POSSIBLE\s0" |
| 219 | .IX Subsection "AS LOW PACKET OVERHEAD AS POSSIBLE" |
222 | .IX Subsection "AS LOW PACKET OVERHEAD AS POSSIBLE" |
| 220 | .Vb 1 |
223 | .Vb 1 |
| 221 | \& ./configure --enable-hmac-length=4 --enable-rand-length=0 |
224 | \& ./configure \-\-enable\-hmac\-length=4 \-\-enable\-rand\-length=0 |
| 222 | .Ve |
225 | .Ve |
| 223 | .PP |
226 | .PP |
| 224 | Minimize the header overhead of \s-1VPN\s0 packets (the above will result in |
227 | Minimize the header overhead of \s-1VPN\s0 packets (the above will result in |
| 225 | only 4 bytes of overhead over the raw ethernet frame). This is a insecure |
228 | only 4 bytes of overhead over the raw ethernet frame). This is a insecure |
| 226 | configuration because a \s-1HMAC\s0 length of 4 makes collision attacks based on |
229 | configuration because a \s-1HMAC\s0 length of 4 makes collision attacks almost |
| 227 | the birthday paradox easy, though. |
230 | trivial. |
| 228 | .Sh "\s-1MINIMIZE\s0 \s-1CPU\s0 \s-1TIME\s0 \s-1REQUIRED\s0" |
231 | .SS "\s-1MINIMIZE\s0 \s-1CPU\s0 \s-1TIME\s0 \s-1REQUIRED\s0" |
| 229 | .IX Subsection "MINIMIZE CPU TIME REQUIRED" |
232 | .IX Subsection "MINIMIZE CPU TIME REQUIRED" |
| 230 | .Vb 1 |
233 | .Vb 1 |
| 231 | \& ./configure --enable-cipher=bf --enable-digest=md4 |
234 | \& ./configure \-\-enable\-cipher=bf \-\-enable\-digest=md4 |
| 232 | .Ve |
235 | .Ve |
| 233 | .PP |
236 | .PP |
| 234 | Use the fastest cipher and digest algorithms currently available in |
237 | Use the fastest cipher and digest algorithms currently available in |
| 235 | gvpe. \s-1MD4\s0 has been broken and is quite insecure, though. |
238 | gvpe. \s-1MD4\s0 has been broken and is quite insecure, though, so using another |
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239 | digest algorithm is recommended. |
| 236 | .Sh "\s-1MAXIMIZE\s0 \s-1SECURITY\s0" |
240 | .SS "\s-1MAXIMIZE\s0 \s-1SECURITY\s0" |
| 237 | .IX Subsection "MAXIMIZE SECURITY" |
241 | .IX Subsection "MAXIMIZE SECURITY" |
| 238 | .Vb 1 |
242 | .Vb 1 |
| 239 | \& ./configure --enable-hmac-length=16 --enable-rand-length=8 --enable-digest=sha1 |
243 | \& ./configure \-\-enable\-hmac\-length=16 \-\-enable\-rand\-length=12 \-\-enable\-digest=ripemd610 |
| 240 | .Ve |
244 | .Ve |
| 241 | .PP |
245 | .PP |
| 242 | This uses a 16 byte \s-1HMAC\s0 checksum to authenticate packets (I guess 8\-12 |
246 | This uses a 16 byte \s-1HMAC\s0 checksum to authenticate packets (I guess 8\-12 |
| 243 | would also be pretty secure ;) and will additionally prefix each packet |
247 | would also be pretty secure ;) and will additionally prefix each packet |
| 244 | with 8 bytes of random data. In the long run, people should move to |
248 | with 12 bytes of random data. |
| 245 | \&\s-1SHA\-224\s0 and beyond, but support in openssl is missing as of writing this |
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| 246 | document. |
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| 247 | .PP |
249 | .PP |
| 248 | In general, remember that \s-1AES\-128\s0 seems to be more secure and faster than |
250 | In general, remember that \s-1AES\-128\s0 seems to be as secure but faster than |
| 249 | \&\s-1AES\-192\s0 or \s-1AES\-256\s0, more randomness helps against sniffing and a longer |
251 | \&\s-1AES\-192\s0 or \s-1AES\-256\s0, more randomness helps against sniffing and a longer |
| 250 | \&\s-1HMAC\s0 helps against spoofing. \s-1MD4\s0 is a fast digest, \s-1SHA1\s0 or \s-1RIPEMD160\s0 are |
252 | \&\s-1HMAC\s0 helps against spoofing. \s-1MD4\s0 is a fast digest, \s-1SHA1\s0, \s-1RIPEMD160\s0, \s-1SHA256\s0 |
| 251 | better, and Blowfish is a fast cipher (and also quite secure). |
253 | are consecutively better, and Blowfish is a fast cipher (and also quite |
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254 | secure). |
| 252 | .SH "HOW TO SET UP A SIMPLE VPN" |
255 | .SH "HOW TO SET UP A SIMPLE VPN" |
| 253 | .IX Header "HOW TO SET UP A SIMPLE VPN" |
256 | .IX Header "HOW TO SET UP A SIMPLE VPN" |
| 254 | In this section I will describe how to get a simple \s-1VPN\s0 consisting of |
257 | In this section I will describe how to get a simple \s-1VPN\s0 consisting of |
| 255 | three hosts up and running. |
258 | three hosts up and running. |
| 256 | .Sh "\s-1STEP\s0 1: configuration" |
259 | .SS "\s-1STEP\s0 1: configuration" |
| 257 | .IX Subsection "STEP 1: configuration" |
260 | .IX Subsection "STEP 1: configuration" |
| 258 | First you have to create a daemon configuation file and put it into the |
261 | First you have to create a daemon configuration file and put it into the |
| 259 | configuration directory. This is usually \f(CW\*(C`/etc/gvpe\*(C'\fR, depending on how you |
262 | configuration directory. This is usually \f(CW\*(C`/etc/gvpe\*(C'\fR, depending on how you |
| 260 | configured gvpe, and can be overwritten using the \f(CW\*(C`\-c\*(C'\fR commandline switch. |
263 | configured gvpe, and can be overwritten using the \f(CW\*(C`\-c\*(C'\fR command line switch. |
| 261 | .PP |
264 | .PP |
| 262 | Put the following lines into \f(CW\*(C`/etc/gvpe/gvpe.conf\*(C'\fR: |
265 | Put the following lines into \f(CW\*(C`/etc/gvpe/gvpe.conf\*(C'\fR: |
| 263 | .PP |
266 | .PP |
| 264 | .Vb 3 |
267 | .Vb 3 |
| 265 | \& udp-port = 50000 # the external port to listen on (configure your firewall) |
268 | \& udp\-port = 50000 # the external port to listen on (configure your firewall) |
| 266 | \& mtu = 1400 # minimum MTU of all outgoing interfaces on all hosts |
269 | \& mtu = 1400 # minimum MTU of all outgoing interfaces on all hosts |
| 267 | \& ifname = vpn0 # the local network device name |
270 | \& ifname = vpn0 # the local network device name |
| 268 | .Ve |
271 | \& |
| 269 | .PP |
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| 270 | .Vb 2 |
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| 271 | \& node = first # just a nickname |
272 | \& node = first # just a nickname |
| 272 | \& hostname = first.example.net # the DNS name or IP address of the host |
273 | \& hostname = first.example.net # the DNS name or IP address of the host |
| 273 | .Ve |
274 | \& |
| 274 | .PP |
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| 275 | .Vb 2 |
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| 276 | \& node = second |
275 | \& node = second |
| 277 | \& hostname = 133.55.82.9 |
276 | \& hostname = 133.55.82.9 |
| 278 | .Ve |
277 | \& |
| 279 | .PP |
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| 280 | .Vb 2 |
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| 281 | \& node = third |
278 | \& node = third |
| 282 | \& hostname = third.example.net |
279 | \& hostname = third.example.net |
| 283 | .Ve |
280 | .Ve |
| 284 | .PP |
281 | .PP |
| 285 | The only other file neccessary if the \f(CW\*(C`if\-up\*(C'\fR script that initializes the |
282 | The only other file necessary is the \f(CW\*(C`if\-up\*(C'\fR script that initializes the |
| 286 | local ethernet interface. Put the following lines into \f(CW\*(C`/etc/gvpe/if\-up\*(C'\fR |
283 | virtual ethernet interface on the local host. Put the following lines into |
| 287 | and make it execute (\f(CW\*(C`chmod 755 /etc/gvpe/if\-up\*(C'\fR): |
284 | \&\f(CW\*(C`/etc/gvpe/if\-up\*(C'\fR and make it executable (\f(CW\*(C`chmod 755 /etc/gvpe/if\-up\*(C'\fR): |
| 288 | .PP |
285 | .PP |
| 289 | .Vb 6 |
286 | .Vb 6 |
| 290 | \& #!/bin/sh |
287 | \& #!/bin/sh |
| 291 | \& ip link set $IFNAME address $MAC mtu $MTU up |
288 | \& ip link set $IFNAME address $MAC mtu $MTU up |
| 292 | \& [ $NODENAME = first ] && ip addr add 10.0.1.1 dev $IFNAME |
289 | \& [ $NODENAME = first ] && ip addr add 10.0.1.1 dev $IFNAME |
| … | |
… | |
| 294 | \& [ $NODENAME = third ] && ip addr add 10.0.3.1 dev $IFNAME |
291 | \& [ $NODENAME = third ] && ip addr add 10.0.3.1 dev $IFNAME |
| 295 | \& ip route add 10.0.0.0/16 dev $IFNAME |
292 | \& ip route add 10.0.0.0/16 dev $IFNAME |
| 296 | .Ve |
293 | .Ve |
| 297 | .PP |
294 | .PP |
| 298 | This script will give each node a different \s-1IP\s0 address in the \f(CW\*(C`10.0/16\*(C'\fR |
295 | This script will give each node a different \s-1IP\s0 address in the \f(CW\*(C`10.0/16\*(C'\fR |
| 299 | network. The internal network (e.g. the \f(CW\*(C`eth0\*(C'\fR interface) should then be |
296 | network. The internal network (if gvpe runs on a router) should then be |
| 300 | set to a subset of that network, e.g. \f(CW\*(C`10.0.1.0/24\*(C'\fR on node \f(CW\*(C`first\*(C'\fR, |
297 | set to a subset of that network, e.g. \f(CW\*(C`10.0.1.0/24\*(C'\fR on node \f(CW\*(C`first\*(C'\fR, |
| 301 | \&\f(CW\*(C`10.0.2.0/24\*(C'\fR on node \f(CW\*(C`second\*(C'\fR, and so on. |
298 | \&\f(CW\*(C`10.0.2.0/24\*(C'\fR on node \f(CW\*(C`second\*(C'\fR, and so on. |
| 302 | .PP |
299 | .PP |
| 303 | By enabling routing on the gateway host that runs \f(CW\*(C`gvpe\*(C'\fR all nodes will |
300 | By enabling routing on the gateway host that runs \f(CW\*(C`gvpe\*(C'\fR all nodes will |
| 304 | be able to reach the other nodes. You can, of course, also use proxy arp |
301 | be able to reach the other nodes. You can, of course, also use proxy \s-1ARP\s0 |
| 305 | or other means of pseudo-bridging (or even real briding), or (best) full |
302 | or other means of pseudo-bridging, or (best) full routing \- the choice is |
| 306 | routing \- the choice is yours. |
303 | yours. |
| 307 | .Sh "\s-1STEP\s0 2: create the \s-1RSA\s0 key pairs for all hosts" |
304 | .SS "\s-1STEP\s0 2: create the \s-1RSA\s0 key pairs for all hosts" |
| 308 | .IX Subsection "STEP 2: create the RSA key pairs for all hosts" |
305 | .IX Subsection "STEP 2: create the RSA key pairs for all hosts" |
| 309 | Run the following command to generate all key pairs (that might take a |
306 | Run the following command to generate all key pairs for all nodes (that |
| 310 | while): |
307 | might take a while): |
| 311 | .PP |
308 | .PP |
| 312 | .Vb 1 |
309 | .Vb 1 |
| 313 | \& gvpectrl -c /etc/gvpe -g |
310 | \& gvpectrl \-c /etc/gvpe \-g |
| 314 | .Ve |
311 | .Ve |
| 315 | .PP |
312 | .PP |
| 316 | This command will put the public keys into \f(CW\*(C`/etc/gvpe/pubkeys/\f(CInodename\f(CW\*(C'\fR and the private keys into \f(CW\*(C`/etc/gvpe/hostkeys/\f(CInodename\f(CW\*(C'\fR. |
313 | This command will put the public keys into \f(CW\*(C`/etc/gvpe/pubkeys/\f(CInodename\f(CW\*(C'\fR and the private keys into \f(CW\*(C`/etc/gvpe/hostkeys/\f(CInodename\f(CW\*(C'\fR. |
| 317 | .Sh "\s-1STEP\s0 3: distribute the config files to all nodes" |
314 | .SS "\s-1STEP\s0 3: distribute the config files to all nodes" |
| 318 | .IX Subsection "STEP 3: distribute the config files to all nodes" |
315 | .IX Subsection "STEP 3: distribute the config files to all nodes" |
| 319 | Now distribute the config files to the other nodes. This should be done in two steps, since the |
316 | Now distribute the config files and private keys to the other nodes. This |
| 320 | private keys should not be distributed. The example uses rsync-over-ssh |
317 | should be done in two steps, since only the private keys meant for a node |
|
|
318 | should be distributed (so each node has only it's own private key). |
|
|
319 | .PP |
|
|
320 | The example uses rsync-over-ssh |
| 321 | .PP |
321 | .PP |
| 322 | First all the config files without the hostkeys should be distributed: |
322 | First all the config files without the hostkeys should be distributed: |
| 323 | .PP |
323 | .PP |
| 324 | .Vb 3 |
324 | .Vb 3 |
| 325 | \& rsync -avzessh /etc/gvpe first.example.net:/etc/. --exclude hostkeys |
325 | \& rsync \-avzessh /etc/gvpe first.example.net:/etc/. \-\-exclude hostkeys |
| 326 | \& rsync -avzessh /etc/gvpe 133.55.82.9:/etc/. --exclude hostkeys |
326 | \& rsync \-avzessh /etc/gvpe 133.55.82.9:/etc/. \-\-exclude hostkeys |
| 327 | \& rsync -avzessh /etc/gvpe third.example.net:/etc/. --exclude hostkeys |
327 | \& rsync \-avzessh /etc/gvpe third.example.net:/etc/. \-\-exclude hostkeys |
| 328 | .Ve |
328 | .Ve |
| 329 | .PP |
329 | .PP |
| 330 | Then the hostkeys should be copied: |
330 | Then the hostkeys should be copied: |
| 331 | .PP |
331 | .PP |
| 332 | .Vb 3 |
332 | .Vb 3 |
| 333 | \& rsync -avzessh /etc/gvpe/hostkeys/first first.example.net:/etc/hostkey |
333 | \& rsync \-avzessh /etc/gvpe/hostkeys/first first.example.net:/etc/hostkey |
| 334 | \& rsync -avzessh /etc/gvpe/hostkeys/second 133.55.82.9:/etc/hostkey |
334 | \& rsync \-avzessh /etc/gvpe/hostkeys/second 133.55.82.9:/etc/hostkey |
| 335 | \& rsync -avzessh /etc/gvpe/hostkeys/third third.example.net:/etc/hostkey |
335 | \& rsync \-avzessh /etc/gvpe/hostkeys/third third.example.net:/etc/hostkey |
| 336 | .Ve |
336 | .Ve |
| 337 | .PP |
337 | .PP |
| 338 | You should now check the configration by issuing the command \f(CW\*(C`gvpectrl \-c |
338 | You should now check the configuration by issuing the command \f(CW\*(C`gvpectrl \-c |
| 339 | /etc/gvpe \-s\*(C'\fR on each node and verify it's output. |
339 | /etc/gvpe \-s\*(C'\fR on each node and verify it's output. |
| 340 | .Sh "\s-1STEP\s0 4: starting gvpe" |
340 | .SS "\s-1STEP\s0 4: starting gvpe" |
| 341 | .IX Subsection "STEP 4: starting gvpe" |
341 | .IX Subsection "STEP 4: starting gvpe" |
| 342 | You should then start gvpe on each node by issuing a command like: |
342 | You should then start gvpe on each node by issuing a command like: |
| 343 | .PP |
343 | .PP |
| 344 | .Vb 1 |
344 | .Vb 1 |
| 345 | \& gvpe -D -linfo first # first is the nodename |
345 | \& gvpe \-D \-l info first # first is the nodename |
| 346 | .Ve |
346 | .Ve |
| 347 | .PP |
347 | .PP |
| 348 | This will make the gvpe stay in foreground. You should then see |
348 | This will make the gvpe daemon stay in foreground. You should then see |
| 349 | \&\*(L"connection established\*(R" messages. If you don't see them check your |
349 | \&\*(L"connection established\*(R" messages. If you don't see them check your |
| 350 | firewall and routing (use tcpdump ;). |
350 | firewall and routing (use tcpdump ;). |
| 351 | .PP |
351 | .PP |
| 352 | If this works you should check your networking setup by pinging various |
352 | If this works you should check your networking setup by pinging various |
| 353 | endpoints. |
353 | endpoints. |
| 354 | .PP |
354 | .PP |
| 355 | To make gvpe run more permanently you can either run it as a daemon |
355 | To make gvpe run more permanently you can either run it as a daemon (by |
| 356 | (by starting it without the \f(CW\*(C`\-D\*(C'\fR switch), or, much better, from your |
356 | starting it without the \f(CW\*(C`\-D\*(C'\fR switch), or, much better, from your inittab |
| 357 | inittab. I use a line like this on my systems: |
357 | or equivalent. I use a line like this on all my systems: |
| 358 | .PP |
358 | .PP |
| 359 | .Vb 1 |
359 | .Vb 1 |
| 360 | \& t1:2345:respawn:/opt/gvpe/sbin/gvpe -D -L first >/dev/null 2>&1 |
360 | \& t1:2345:respawn:/opt/gvpe/sbin/gvpe \-D \-L first >/dev/null 2>&1 |
| 361 | .Ve |
361 | .Ve |
| 362 | .Sh "\s-1STEP\s0 5: enjoy" |
362 | .SS "\s-1STEP\s0 5: enjoy" |
| 363 | .IX Subsection "STEP 5: enjoy" |
363 | .IX Subsection "STEP 5: enjoy" |
| 364 | \&... and play around. Sending a \-HUP (\f(CW\*(C`gvpectrl \-kHUP\*(C'\fR) to the daemon |
364 | \&... and play around. Sending a \-HUP (\f(CW\*(C`gvpectrl \-kHUP\*(C'\fR) to the daemon |
| 365 | will make it try to connect to all other nodes again. If you run it from |
365 | will make it try to connect to all other nodes again. If you run it from |
| 366 | inittab, as is recommended, \f(CW\*(C`gvpectrl \-k\*(C'\fR (or simply \f(CW\*(C`killall gvpe\*(C'\fR) will |
366 | inittab, as is recommended, \f(CW\*(C`gvpectrl \-k\*(C'\fR (or simply \f(CW\*(C`killall gvpe\*(C'\fR) will |
| 367 | kill the daemon, start it again, making it read it's configuration files |
367 | kill the daemon, start it again, making it read it's configuration files |
| 368 | again. |
368 | again. |
| 369 | .SH "SEE ALSO" |
369 | .SH "SEE ALSO" |
| 370 | .IX Header "SEE ALSO" |
370 | .IX Header "SEE ALSO" |
| 371 | \&\fIgvpe.osdep\fR\|(5) for OS-depedendent information, \fIgvpe.conf\fR\|(5), \fIgvpectrl\fR\|(8), |
371 | \&\fIgvpe.osdep\fR\|(5) for OS-dependent information, \fIgvpe.conf\fR\|(5), \fIgvpectrl\fR\|(8), |
| 372 | and for a description of the transports, protocol, and routing algorithm, |
372 | and for a description of the transports, protocol, and routing algorithm, |
| 373 | \&\fIgvpe.protocol\fR\|(7). |
373 | \&\fIgvpe.protocol\fR\|(7). |
| 374 | .PP |
374 | .PP |
| 375 | The \s-1GVPE\s0 mailinglist, at <http://lists.schmorp.de/>, or |
375 | The \s-1GVPE\s0 mailing list, at <http://lists.schmorp.de/>, or |
| 376 | \&\f(CW\*(C`gvpe@lists.schmorp.de\*(C'\fR. |
376 | \&\f(CW\*(C`gvpe@lists.schmorp.de\*(C'\fR. |
| 377 | .SH "AUTHOR" |
377 | .SH "AUTHOR" |
| 378 | .IX Header "AUTHOR" |
378 | .IX Header "AUTHOR" |
| 379 | Marc Lehmann <gvpe@schmorp.de> |
379 | Marc Lehmann <gvpe@schmorp.de> |
| 380 | .SH "COPYRIGHTS AND LICENSES" |
380 | .SH "COPYRIGHTS AND LICENSES" |
