| blob | 5ebc2a9bf2a58a579c9d3e05e1815442bb3720f5 |
3 This directory contains the "distributed rwho" (drwho) program. Drwho
4 alleviates certain rwho(1) limitations. For instance it adds
5 functionality that spans subnets. In addition, drwho prints a much
6 more concise listing of who's logged in around a network.
8 Below are some examples of how to use drwho.
10 0. Start by running the server in a window or as a daemon, e.g., run
11 the following on a local machine, such as tango.cs.wustl.edu:
13 % drwho-server
15 Then, If you'd like to find out who's logged in, try the following
16 commands:
18 1. Print out the command-line options.
20 % drwho-client -h
21 usage: ./drwho-client
22 -? prints a short usage message
23 -A append the following hostname to the list of predefined hostnames.
24 -a return information on *all* users remotely logged in (uses yp passwd).
25 -b run the server in the background (i.e., as a daemon).
26 -d turn on debugging.
27 -F use the following file contents to initialize the host list.
28 -f use the following file contents to initialize the friends database.
29 -H use the following hostname as part of the new list of hostnames.
30 (this option overwrites the existing default names).
31 -h print a long usage message.
32 -L print the login name rather than the real name (which is the default).
33 -l print information in long format (works for all protocols).
34 -p set the port number (server must correspond).
35 -r do the remote lookups (i.e., local operations are the default).
36 -R print info using the rusers format.
37 -s sort the output by login name.
38 -S sort the output by real name.
39 -t set the amount of time we wait for servers to timeout.
40 -w return information on just one user.
42 ----------------------------------------
44 2. Find out which friends are logged in (* means currently active)
46 % drwho-client -A tango.cs.wustl.edu -r -f ~schmidt/.friends.dta
47 remote friends logged on
48 ------------------------
49 *Doug O'las [tango*(3) mambo]
50 Carlos O'Ryan [tango swarm.cs.wustl.edu macarena]
51 Irfan Pyarali [merengue]
52 Nanbor Wang [lambada]
53 Marina Spivak [mambo]
54 Chris Gill [tango]
55 *Vishal [merengue*(2)]
56 Kirthika [tango waltz]
57 Naga [tango polka]
58 Alex [lindy]
59 Bala [cumbia]
60 Pradeep [flamenco]
61 Matt Braun [lambada]
62 ------------------------
63 friends: 5 users: 168
65 You'll to write a friends.dta file in order for this feature to work.
66 Here's one that I've got:
68 schmidt Doug O'las
69 coryan Carlos O'Ryan
70 irfan Irfan Pyarali
71 levine David Levine
72 nanbor Nanbor Wang
73 jp4 Jeff Parsons
74 marina Marina Spivak
75 cdgill Chris Gill
76 vishal Vishal
77 kirthika Kirthika
78 naga Naga
79 alex Alex
80 bala Bala
81 pradeep Pradeep
82 brunsch Darrell Brunsch
83 jxh James Hu
84 yamuna Yamuna
85 mjb2 Matt Braun
86 gokhale Andy Gokhale
87 fredk Fred Kuhns
89 If you put this file in ~/.friends.dta drwho will automatically locate
90 it.
92 ----------------------------------------
94 3. Find out where a particular person is logged in:
96 % drwho-client -A tango.cs.wustl.edu -r -w schmidt
97 tango
99 This is useful for remote commands that require a hostname, e.g.:
101 % talk schmidt@`drwho-client -A tango.cs.wustl.edu -r -w schmidt`
103 or
105 % rsh `drwho-client -w schmidt` ps
106 PID TTY TIME CMD
107 1844 pts/9 0:01 tcsh_6.0
108 4821 ? 0:02 perfmete
109 77 pts/20 0:01 tcsh_6.0
110 4845 pts/2 0:00 tcsh_6.0
111 4766 ? 0:00 xmessage
112 4850 pts/3 0:06 tcsh_6.0
113 5057 pts/4 0:01 tcsh_6.0
114 4826 ? 18:07 netscape
115 4802 ? 0:07 mwm
116 % foreach host (`drwho -r -l -w schmidt`)
117 ? echo $host
118 ? rsh $host w | grep -E schmidt
119 ? end
121 ----------------------------------------
123 4. Find out everyone who is logged in everywhere!
125 % drwho-client -A tango.cs.wustl.edu -r -a
126 remote users logged on
127 ------------------------
128 rlneblet [ascc]
129 woody [fixer]
130 Jyoti Parwatikar [hopscotch]
131 Stephen D. Scott [occam]
132 klkramer [ascc]
133 dmorris [ascc]
134 *pabacard [ascc*]
135 sestasne [ascc]
136 Sumedh Mungee [merengue lindy]
137 Alexander Babu Arulanthu [lindy]
138 Robert A. Rouse [siesta]
139 asamarak [ascc]
140 Tom Chaney [snoodles]
141 Joe Hoffert [monkeybars]
142 ircornel [ascc]
143 Chris Cleeland [macarena]
144 *Matthew Karl Lundberg [enz lcs*(2)]
145 dmschult [ascc]
146 sherlia [owen]
147 *wmwhites [ascc*]
148 Marius Mihai Tutunaru [siesta]
149 Ken Wong [ackbar sarlacc]
150 abstutts [ascc]
151 Barry L. Kalman [sachel]
152 Yunhong Zhou [siesta]
153 Marina Igorevna Spivak [mambo]
154 mschraed [ascc]
155 tuck [ascc]
156 Daniel Robert Dooly [cardinal]
157 emlentz [ascc]
158 Margaret Flucke [honker yoda brainmap]
159 Jonathan S. Pollack [siesta]
160 Gurudatta M. Parulkar [ackbar]
161 Mike Richards [teebo]
162 *Vishal Kachroo [merengue*(1)]
163 The dump man [tapeworm]
164 Uooyeol Yoon [siesta]
165 jtlink [ascc]
166 Dan Rosenstein [tubman]
167 cdnorden [ascc]
168 Jon Turner [spanky]
169 Stan C. Kwasny [lambda]
170 aymessin [ascc]
171 Nanbor Wang [lambada]
172 wolf [sarlacc]
173 jgbers [ascc]
174 Pradeep Gore [flamenco]
175 Chris D. Gill [tango]
176 sduseja [ascc]
177 amgarcia [ascc]
178 *Hongyin Quan [ackbar*(2)]
179 firemen [helen]
180 *lskafenb [ascc*]
181 Sally Goldman [occam]
182 Marcel Waldvogel [tiger]
183 klforesm [ascc]
184 Andy Fingerhut [yoda leia]
185 root@tango [tango emperor siren flora helen boushi tapeworm siesta rainier taumsauk honker polka]
186 Nagarajan Surendran [tango polka]
187 ajeckste [ascc]
188 Linda Suri [kavita]
189 Sarah Elizabeth Burcham [helen]
190 Salathiel Sawyer [helen]
191 A. Maynard Engebretson [wicket]
192 Theresa Manzara [siesta]
193 aagrillo [ascc]
194 ksviehen [ascc]
195 Will Gillett [gel]
196 Elaine M Ashton [helen]
197 James C. Gray [siesta]
198 Ian Flanigan [siesta]
199 jacrank [ascc]
200 Matthew J Braun [lambada]
201 *pjhanrah [ascc*]
202 Vadim Adamov [siesta]
203 *rbherrin [ascc*]
204 kslee [ascc]
205 Balachandran Natarajan [cumbia]
206 *Qianbo Huai [ecommerce*(2)]
207 Scott Thomas Haug [bacon kato]
208 Yuhua Chen [beru]
209 blawrenc [ascc]
210 dcoats [ascc]
211 *sdsinger [ascc*]
212 Katherine Skirving Larson [odysseus mas]
213 rmcarbon [ascc]
214 rer [luke honker leia]
215 Ron Loui [ai siesta]
216 Sergio Flores [tango siesta]
217 maint [helen]
218 mewedeha [ascc]
219 Scott Simon [ackbar]
220 weathert [anakin hobbie honker]
221 Kirthika Parameswaran [waltz tango]
222 Scott Douglas Powers [greedo buster]
223 *vehays [ascc*]
224 Multiagent Systems Research Group [siren]
225 *Douglas C. Schmidt [tango*(3) mambo]
226 sunyh [r2d2]
227 *jbbrooks [ascc*]
228 mweisema [ascc]
229 *baruethe [ascc*]
230 Yan Zhou [thunderball]
231 *jennyc [ascc*]
232 Karl Stiefvater [tamarin helen]
233 John Roman [helen]
234 slstraus [ascc]
235 Subhash Suri [kavita]
236 Sandeep Sikka [siesta]
237 Dna Mutants [lcs]
238 Irfan Pyarali [merengue]
239 ajhingst [ascc]
240 Tuomas Sandholm [siren]
241 Carlos O'Ryan [tango swarm.cs.wustl.edu macarena]
242 Tilman Wolf [siesta]
243 ------------------------
244 friends: 20 users: 20
246 ----------------------------------------
248 5. Print out all machines and who is logged into each one
250 % drwho-client -A tango.cs.wustl.edu -R -l
251 kavita Subhash Suri, Linda Suri
252 lcs Matthew Karl Lundberg*(2), Dna Mutants
253 leia Andy Fingerhut, rer
254 rainier root@tango
255 thunderball Yan Zhou
256 lindy Sumedh Mungee, Alexander Babu Arulanthu
257 flamenco Pradeep Gore
258 ai Ron Loui
259 wicket A. Maynard Engebretson
260 occam Stephen D. Scott, Sally Goldman
261 helen firemen, Sarah Elizabeth Burcham, Elaine M Ashton, root@tango, maint, John Roman, Karl Stiefvater, Salathiel Sawyer
262 enz Matthew Karl Lundberg
263 tamarin Karl Stiefvater
264 tiger Marcel Waldvogel
265 cumbia Balachandran Natarajan
266 r2d2 sunyh
267 fixer woody
268 ecommerce Qianbo Huai*(2)
269 lambda Stan C. Kwasny
270 boushi root@tango
271 mambo Douglas C. Schmidt, Marina Igorevna Spivak
272 ascc slstraus, rmcarbon, aymessin, aagrillo, sdsinger*, dmschult, sestasne, dmorris, jgbers, jennyc*, sduseja, baruethe*, gzhou*, vehays*, pjhanrah*, dcoats, saduthie*, ksviehen, cdnorden, ajhingst*, mschraed, asamarak, pabacard*, mewedeha, ajeckste, jbbrooks, blawrenc, amgarcia, abstutts, klforesm, klkramer, pkshah*, jtlink, jacrank, wmwhites*, kslee, mweisema, emlentz, rlneblet, tuck
273 beru Yuhua Chen
274 emperor root@tango
275 siren Tuomas Sandholm, root@tango, Multiagent Systems Research Group
276 tubman Dan Rosenstein
277 gel Will Gillett
278 honker Margaret Flucke, root@tango, weathert, rer
279 greedo Scott Douglas Powers
280 swarm.cs.wustl.edu Carlos O'Ryan
281 tapeworm root@tango, The dump man
282 siesta Uooyeol Yoon, Marius Mihai Tutunaru, Vadim Adamov, Robert A. Rouse, Jonathan S. Pollack, James C. Gray, Sergio Flores, Sandeep Sikka, Ron Loui, Yunhong Zhou, Tilman Wolf, Theresa Manzara, Ian Flanigan, root@tango
283 luke rer
284 snoodles Tom Chaney
285 ackbar Ken Wong, Scott Simon, Gurudatta M. Parulkar, Hongyin Quan*(1)
286 buster Scott Douglas Powers
287 tango Nagarajan Surendran, Sergio Flores, Chris D. Gill, Kirthika Parameswaran, Carlos O'Ryan, root@tango, Douglas C. Schmidt*(3)
288 teebo Mike Richards
289 cardinal Daniel Robert Dooly
290 lambada Nanbor Wang, Matthew J Braun
291 merengue Sumedh Mungee, Vishal Kachroo*(1), Irfan Pyarali
292 macarena Chris Cleeland, Carlos O'Ryan
293 sarlacc wolf, Ken Wong
294 spanky Jon Turner
295 brainmap Margaret Flucke
296 polka Nagarajan Surendran, root@tango
297 waltz Kirthika Parameswaran
298 flora root@tango
299 anakin weathert
300 bacon Scott Thomas Haug
301 hopscotch Jyoti Parwatikar
302 mas Katherine Skirving Larson
303 kato Scott Thomas Haug
304 hobbie weathert
305 odysseus Katherine Skirving Larson
306 sachel Barry L. Kalman
307 taumsauk root@tango
308 yoda Margaret Flucke, Andy Fingerhut
309 owen sherlia
310 monkeybars Joe Hoffert