Re: What are port requirements for remote lisp?
Mirko Vukovic <[email protected]> Thu, 2 Apr 2020 14:16:55 -0400
| Newsgroups | gmane.lisp.slime.devel |
|---|---|
| Message-ID | <CAO73BACmO-+rSwj9b3gLGEuNtRjypk2Eq2-ZYmD-SMN=USRi6g@mail.gmail.com> |
--0000000000007f75ab05a252d0bc Content-Type: text/plain; charset="UTF-8" On Thu, Apr 2, 2020 at 9:09 AM Martin Simmons <[email protected]> wrote: > >>>>> On Thu, 2 Apr 2020 08:33:42 -0400, Mirko Vukovic said: > > > > On Thu, Apr 2, 2020 at 7:55 AM Martin Simmons <[email protected]> > wrote: > > > > > >>>>> On Wed, 1 Apr 2020 08:59:30 -0400, Mirko Vukovic said: > > > > > > > > On Tue, Mar 31, 2020 at 11:51 AM Martin Simmons < > [email protected]> > > > > wrote: > > > > > > > > > >>>>> On Mon, 30 Mar 2020 21:16:00 -0400, Mirko Vukovic said: > > > > > > > > > > > > Hello, > > > > > > > > > > > > My setup is Sly on Spacemacs with Windows 10 running remote lisp > on > > > Linux > > > > > > over a corporate network. I have not found a Sly mailing list, > and I > > > > > hope I > > > > > > can get an answer here. > > > > > > > > > > > > Emacs is running Sly on Spacemacs on Windows 10. Lisp is running > on a > > > > > Linux > > > > > > server. But Sly does not connect to the listening Lisp. Corporate > > > network > > > > > > security policies have changed. I can ask for IT to accommodate > me, > > > but > > > > > > first I need to know what to ask for. > > > > > > > > > > > > So far, I have opened a tunnel, and started a listening lisp > (details > > > > > > below). > > > > > > > > > > > > In Emacs I get: > > > > > > > > > > > > sly-connect RET RET RET > > > > > > [sly] Connecting to Slynk on port 4005.. > > > > > > helm-M-x-execute-command: make client process failed: Connection > > > timed > > > > > out, > > > > > > :name, sly-9, :buffer, nil, :host, hal9000, :service, 4005, > :nowait, > > > nil, > > > > > > :tls-parameters, nil > > > > > > > > > > > > The session transcript: > > > > > > > ssh -L4005:localhost:4005 mirko@hal9000 > > > > > > > > > > > > [mirko@hal9000 .roswell]$ ros -L ccl-bin run --load > > > > > start-slynk-server.lisp > > > > > > > > > > > > Added SLYNK path to ASDF:*CENTRAL-REGISTRY* > > > > > > SLYNK's ASDF loader finished. > > > > > > Loaded ASDF system > > > > > > ;; Slynk started at port: 4005. > > > > > > > > > > > > Created SLYNK server on port 4005 > > > > > > Set *USE-DEDICATED-OUTPUT-STREAM* to NIL > > > > > > Clozure Common Lisp Version 1.11.5/v1.11.5 (LinuxX8664) > > > > > > > > > > > > For more information about CCL, please see > http://ccl.clozure.com. > > > > > > > > > > > > CCL is free software. It is distributed under the terms of the > > > Apache > > > > > > Licence, Version 2.0. > > > > > > ? > > > > > > > > > > > > My question is as follows: > > > > > > > > > > > > 1. Do I need bi-directional traffic on 4005? > > > > > > > > > > Assuming you are using the ssh tunnel above, then you don't need > port > > > 4005 > > > > > traffic on the LAN (it is all hidden in the tunnel). > > > > > > > > > > The most likely problem is that some firewall on the Windows > machine is > > > > > blocking port 4005. You may need to configure that firewall to > allow > > > ssh > > > > > to > > > > > listen on localhost:4005 and/or to accept connections to it from > > > Spacemacs. > > > > > In theory you might have similar localhost firewall issues on > hal9000, > > > but > > > > > that is less likely. > > > > > > > > > > > > > > > > 2. Do I need bi-directional traffic on 22? (after recent > changes I > > > > > > cannot ssh or scp into my Windows machine) > > > > > > > > > > I'm assuming that you ran the ssh command on the Windows 10 machine > > > and it > > > > > gave you a working login to hal9000. If so, then it looks like you > > > already > > > > > have what you need for port 22. > > > > > > > > > > > > > Yes, I can log in to hal9000 with the -L switch: > > > > > > > > > ssh -L4005:localhost:4005 mirko@hal9000 > > > > Last login: Thu Mar 19 14:33:17 2020 from 172.27.236.189 > > > > [mirko@hal9000 ~]$ > > > > > > > > > > > > > > > > > > Note that bi-directional traffic on a connected socket is different > > > from > > > > > whether you can make a connection in both directions. > > > > > > > > > > > > > > > > 3. What tools can I use to try to narrow down the cause of the > > > > > problem? > > > > > > For instance, can I send a command to the lisp image, and see > its > > > > > effects > > > > > > on the lisp side? > > > > > > > > > > Firstly, run "netstat -antp" on hal9000 to see if Lisp is > listening on > > > port > > > > > 4005. > > > > > > > > > > > > > It looks that ccl-bin is listening: > > > > $ sudo netstat -antp | grep :4005 > > > > tcp 0 0 127.0.0.1:4005 0.0.0.0:* > > > LISTEN > > > > 104461/lx86cl64 > > > > > > > > > > > > > > > > > > Secondly, run "netstat -anop tcp" on the Windows 10 machine to see > if > > > ssh > > > > > is > > > > > listening on port 4005. > > > > > > > > > > > > > > I have Msys2's netstat. On the laptop: > > > > > which netstat > > > > /c/WINDOWS/system32/netstat > > > > /c/Users/mirko/Downloads > > > > > netstat -anop tcp | grep :4005 > > > > TCP 127.0.0.1:4005 0.0.0.0:0 LISTENING > > > 12052 > > > > > > Yes, both netstat outputs look good at that point. > > > > > > > > > > > Thirdly, run "ssh -p 4005 localhost" on the Windows 10 machine. > This > > > use a > > > > > ssh is very bogus, but it should at least give an error message > with > > > some > > > > > diagnostics. (Normally I would use telnet for this, but it is not > > > > > installed > > > > > on Windows 10 by default.) > > > > > > > > > > > > > Outputs of both ssh and telnet on the laptop: > > > > > which telnet > > > > /usr/bin/telnet > > > > /c/Users/mirko/Downloads > > > > > telnet localhost 4005 > > > > Trying ::1... > > > > Connected to localhost. > > > > Escape character is '^]'. > > > > Connection closed by foreign host. > > > > > > OK, so it is connected to the Windows side at least. > > > > > > Check that the Slynk server was created with :dont-close t (or set > > > slynk:*dont-close* to t before creating it). If dont-close is nil, it > will > > > only accept one connection, which makes debugging difficult. > > > > > > Then restart the log in to hal9000 with -v option to ssh to make it > print > > > debug > > > information: > > > > > > ssh -v -L4005:localhost:4005 mirko@hal9000 > > > > > > and try the telnet again to see what is happening at the Linux end. > > > > > > __Martin > > > > > Here is the test log. Telnet and ssh debug are at the bottom. > > 1 Start slynk with :dont-close t > > > > Modified startup script: > > > > (let ((port 4005)) > > (slynk:create-server :port port :dont-close t) > > (format t "~% Created SLYNK server on port ~a" port)) > > (setf slynk:*use-dedicated-output-stream* nil) > > > > 2 Started tunnel with verbose option, -v switch > > > > $ ssh -v -L4005:hal9000:4005 mirko@hal9000 > > > > 3 Telnet on laptop side to laptop port 4005 > > > > @laptop> telnet localhost 4005 > > Trying ::1... > > Connected to localhost. > > Escape character is '^]'. > > Connection closed by foreign host. > > > > 4 SSH debug output > > > > @hal9000> debug1: Connection to port 4005 forwarding to hal9000 port > > 4005 requested. > > debug1: channel 3: new [direct-tcpip] > > channel 3: open failed: connect failed: Connection refused > > debug1: channel 3: free: direct-tcpip: listening port 4005 for hal9000 > > port 4005, connect from ::1 port 64100 to ::1 port 4005, nchannels 4 > > It looks like hal9000 is resolving to the IPv6 localhost address ::1 on > hal9000, but the Lisp is probably only listening on IPv4. > > Try restarting the tunnel with -L4005:127.0.0.1:4005 to force IPv4. > > __Martin > I restarted tunnel with IPv4: Now when I type something in the telnet session, I get Lisp to respond (with debugger in this case). Sly is still not connecting - maybe I need to restart emacs. Log: 1 Start slynk with :dont-close t as before 2 Start tunnel with verbose option, -v switch and IPv4 $ ssh -v -L4005:127.0.0.1:4005 977315@hal9000 3 Telnet on laptop side to laptop port 4005 @laptop> telnet localhost 4005 Trying ::1... Connected to localhost. Escape character is '^]'. 3.1 SSH debug output to telnet start debug1: Connection to port 4005 forwarding to 127.0.0.1 port 4005 requested. debug1: channel 3: new [direct-tcpip] 4 Send command via telnet session Using telnet session send command: *features* Connection closed by foreign host. 4.1 Results in an error in lisp due to syntax error ;; slynk:close-connection: Not an integer string: "*featu" ;; closing 0 channels ;; closing 0 listeners ;; Event history start: decode-message close-connection: Not an integer string: "\x00FF\x00F4\x00FF\x00FD\x00FF" ... close-connection Not an integer string: "\x00FF\x00F4\x00FF\x00FD\x00FF" ... done. decode-message close-connection: Not an integer string: "*featu" ... ;; Event history end. ;; Backtrace: 0: (NIL #<Unknown Arguments>) 1: (NIL #<Unknown Arguments>) 2: (SLYNK-BACKEND:CALL-WITH-DEBUGGING-ENVIRONMENT #<Compiled-function (:INTERNAL SLYNK::SAFE-BACKTRACE) (Non-Global) #x302000A0BFFF>) 3: (SLYNK::SAFE-BACKTRACE) 4: (SLYNK::SIGNAL-SLYNK-ERROR #<CCL::PARSE-INTEGER-NOT-INTEGER-STRING #x302000C1F32D> NIL) 5: (SIGNAL #<CCL::PARSE-INTEGER-NOT-INTEGER-STRING #x302000C1F32D>) 6: (CCL::%ERROR #<CCL::PARSE-INTEGER-NOT-INTEGER-STRING #x302000C1F32D> (:STRING "*featu") 5975725205395) 7: (PARSE-INTEGER "*featu" :START 0 :END 6 :RADIX 16 :JUNK-ALLOWED NIL) 8: (SLYNK-RPC:READ-PACKET #<BASIC-TCP-STREAM ISO-8859-1 (SOCKET/4) #x302000BDFD9D>) 9: (SLYNK-RPC:READ-MESSAGE #<BASIC-TCP-STREAM ISO-8859-1 (SOCKET/4) #x302000BDFD9D> #<Package "SLYNK-IO-PACKAGE">) 10: (SLYNK::DECODE-MESSAGE #<BASIC-TCP-STREAM ISO-8859-1 (SOCKET/4) #x302000BDFD9D>) 11: (SLYNK::READ-LOOP #<MULTITHREADED-CONNECTION #x302000BDEFCD>) 12: (CCL::RUN-PROCESS-INITIAL-FORM #<PROCESS reader-thread(9) [Active] #x302000BFEFBD> (#<COMPILED-LEXICAL-CLOSURE (:INTERNAL CCL::%PROCESS-RUN-FUNCTION) #x302000BFED2F>)) 13: ((:INTERNAL (CCL::%PROCESS-PRESET-INTERNAL (PROCESS))) #<PROCESS reader-thread(9) [Active] #x302000BFEFBD> (#<COMPILED-LEXICAL-CLOSURE (:INTERNAL CCL::%PROCESS-RUN-FUNCTION) #x302000BFED2F>)) 14: ((:INTERNAL CCL::THREAD-MAKE-STARTUP-FUNCTION)) ;; Connection to Emacs lost. [ ;; condition: Not an integer string: "*featu" ;; type: CCL::PARSE-INTEGER-NOT-INTEGER-STRING ;; style: :SPAWN] --0000000000007f75ab05a252d0bc Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr"><div dir=3D"ltr"><br></div><br><div class=3D"gmail_quote">= <div dir=3D"ltr" class=3D"gmail_attr">On Thu, Apr 2, 2020 at 9:09 AM Martin= Simmons <<a href=3D"mailto:[email protected]">[email protected]</= a>> wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0p= x 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">&g= t;>>>> On Thu, 2 Apr 2020 08:33:42 -0400, Mirko Vukovic said:<b= r> > <br> > On Thu, Apr 2, 2020 at 7:55 AM Martin Simmons <<a href=3D"mailto:ma= [email protected]" target=3D"_blank">[email protected]</a>> wrote:<b= r> > <br> > > >>>>> On Wed, 1 Apr 2020 08:59:30 -0400, Mirko Vuk= ovic said:<br> > > ><br> > > > On Tue, Mar 31, 2020 at 11:51 AM Martin Simmons <<a href= =3D"mailto:[email protected]" target=3D"_blank">[email protected]</a>= ><br> > > > wrote:<br> > > ><br> > > > > >>>>> On Mon, 30 Mar 2020 21:16:00 -0400= , Mirko Vukovic said:<br> > > > > ><br> > > > > > Hello,<br> > > > > ><br> > > > > > My setup is Sly on Spacemacs with Windows 10 runni= ng remote lisp on<br> > > Linux<br> > > > > > over a corporate network. I have not found a Sly m= ailing list, and I<br> > > > > hope I<br> > > > > > can get an answer here.<br> > > > > ><br> > > > > > Emacs is running Sly on Spacemacs on Windows 10. L= isp is running on a<br> > > > > Linux<br> > > > > > server. But Sly does not connect to the listening = Lisp. Corporate<br> > > network<br> > > > > > security policies have changed. I can ask for IT t= o accommodate me,<br> > > but<br> > > > > > first I need to know what to ask for.<br> > > > > ><br> > > > > > So far, I have opened a tunnel, and started a list= ening lisp (details<br> > > > > > below).<br> > > > > ><br> > > > > > In Emacs I get:<br> > > > > ><br> > > > > > sly-connect RET RET RET<br> > > > > > [sly] Connecting to Slynk on port 4005..<br> > > > > > helm-M-x-execute-command: make client process fail= ed: Connection<br> > > timed<br> > > > > out,<br> > > > > > :name, sly-9, :buffer, nil, :host, hal9000, :servi= ce, 4005, :nowait,<br> > > nil,<br> > > > > > :tls-parameters, nil<br> > > > > ><br> > > > > > The session transcript:<br> > > > > > > ssh -L4005:localhost:4005 mirko@hal9000<br> > > > > ><br> > > > > > [mirko@hal9000 .roswell]$ ros -L ccl-bin run --loa= d<br> > > > > start-slynk-server.lisp<br> > > > > ><br> > > > > >=C2=A0 Added SLYNK path to ASDF:*CENTRAL-REGISTRY*<= br> > > > > > SLYNK's ASDF loader finished.<br> > > > > >=C2=A0 Loaded ASDF system<br> > > > > > ;; Slynk started at port: 4005.<br> > > > > ><br> > > > > >=C2=A0 Created SLYNK server on port 4005<br> > > > > >=C2=A0 Set *USE-DEDICATED-OUTPUT-STREAM* to NIL<br> > > > > > Clozure Common Lisp Version 1.11.5/v1.11.5=C2=A0 (= LinuxX8664)<br> > > > > ><br> > > > > > For more information about CCL, please see <a href= =3D"http://ccl.clozure.com" rel=3D"noreferrer" target=3D"_blank">http://ccl= .clozure.com</a>.<br> > > > > ><br> > > > > > CCL is free software.=C2=A0 It is distributed unde= r the terms of the<br> > > Apache<br> > > > > > Licence, Version 2.0.<br> > > > > > ?<br> > > > > ><br> > > > > > My question is as follows:<br> > > > > ><br> > > > > >=C2=A0 =C2=A0 1. Do I need bi-directional traffic o= n 4005?<br> > > > ><br> > > > > Assuming you are using the ssh tunnel above, then you d= on't need port<br> > > 4005<br> > > > > traffic on the LAN (it is all hidden in the tunnel).<br= > > > > ><br> > > > > The most likely problem is that some firewall on the Wi= ndows machine is<br> > > > > blocking port 4005.=C2=A0 You may need to configure tha= t firewall to allow<br> > > ssh<br> > > > > to<br> > > > > listen on localhost:4005 and/or to accept connections t= o it from<br> > > Spacemacs.<br> > > > > In theory you might have similar localhost firewall iss= ues on hal9000,<br> > > but<br> > > > > that is less likely.<br> > > > ><br> > > > ><br> > > > > >=C2=A0 =C2=A0 2. Do I need bi-directional traffic o= n 22? (after recent changes I<br> > > > > >=C2=A0 =C2=A0 cannot ssh or scp into my Windows mac= hine)<br> > > > ><br> > > > > I'm assuming that you ran the ssh command on the Wi= ndows 10 machine<br> > > and it<br> > > > > gave you a working login to hal9000.=C2=A0 If so, then = it looks like you<br> > > already<br> > > > > have what you need for port 22.<br> > > > ><br> > > ><br> > > > Yes, I can log in to hal9000 with the -L switch:<br> > > ><br> > > > > ssh -L4005:localhost:4005 mirko@hal9000<br> > > > Last login: Thu Mar 19 14:33:17 2020 from 172.27.236.189<br> > > > [mirko@hal9000 ~]$<br> > > ><br> > > ><br> > > > ><br> > > > > Note that bi-directional traffic on a connected socket = is different<br> > > from<br> > > > > whether you can make a connection in both directions.<b= r> > > > ><br> > > > ><br> > > > > >=C2=A0 =C2=A0 3. What tools can I use to try to nar= row down the cause of the<br> > > > > problem?<br> > > > > >=C2=A0 =C2=A0 For instance, can I send a command to= the lisp image, and see its<br> > > > > effects<br> > > > > >=C2=A0 =C2=A0 on the lisp side?<br> > > > ><br> > > > > Firstly, run "netstat -antp" on hal9000 to se= e if Lisp is listening on<br> > > port<br> > > > > 4005.<br> > > > ><br> > > ><br> > > > It looks that ccl-bin is listening:<br> > > > $ sudo netstat -antp | grep :4005<br> > > > tcp=C2=A0 =C2=A0 =C2=A0 =C2=A0 0=C2=A0 =C2=A0 =C2=A0 0 <a hr= ef=3D"http://127.0.0.1:4005" rel=3D"noreferrer" target=3D"_blank">127.0.0.1= :4005</a>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 0.0.0.0:*<br> > >=C2=A0 LISTEN<br> > > >=C2=A0 =C2=A0 =C2=A0 104461/lx86cl64<br> > > ><br> > > ><br> > > > ><br> > > > > Secondly, run "netstat -anop tcp" on the Wind= ows 10 machine to see if<br> > > ssh<br> > > > > is<br> > > > > listening on port 4005.<br> > > > ><br> > > > ><br> > > > I have Msys2's netstat. On the laptop:<br> > > > > which netstat<br> > > > /c/WINDOWS/system32/netstat<br> > > > /c/Users/mirko/Downloads<br> > > > > netstat -anop tcp | grep :4005<br> > > >=C2=A0 =C2=A0TCP=C2=A0 =C2=A0 <a href=3D"http://127.0.0.1:400= 5" rel=3D"noreferrer" target=3D"_blank">127.0.0.1:4005</a>=C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0<a href=3D"http://0.0.0.0:0" rel=3D"noreferrer" target=3D"= _blank">0.0.0.0:0</a>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 LISTE= NING<br> > >=C2=A0 12052<br> > ><br> > > Yes, both netstat outputs look good at that point.<br> > ><br> > ><br> > > > > Thirdly, run "ssh -p 4005 localhost" on the W= indows 10 machine.=C2=A0 This<br> > > use a<br> > > > > ssh is very bogus, but it should at least give an error= message with<br> > > some<br> > > > > diagnostics.=C2=A0 (Normally I would use telnet for thi= s, but it is not<br> > > > > installed<br> > > > > on Windows 10 by default.)<br> > > > ><br> > > ><br> > > > Outputs of both ssh and telnet on the laptop:<br> > > > > which telnet<br> > > > /usr/bin/telnet<br> > > > /c/Users/mirko/Downloads<br> > > > > telnet localhost 4005<br> > > > Trying ::1...<br> > > > Connected to localhost.<br> > > > Escape character is '^]'.<br> > > > Connection closed by foreign host.<br> > ><br> > > OK, so it is connected to the Windows side at least.<br> > ><br> > > Check that the Slynk server was created with :dont-close t (or se= t<br> > > slynk:*dont-close* to t before creating it).=C2=A0 If dont-close = is nil, it will<br> > > only accept one connection, which makes debugging difficult.<br> > ><br> > > Then restart the log in to hal9000 with -v option to ssh to make = it print<br> > > debug<br> > > information:<br> > ><br> > > ssh -v -L4005:localhost:4005 mirko@hal9000<br> > ><br> > > and try the telnet again to see what is happening at the Linux en= d.<br> > ><br> > > __Martin<br> > ><br> > Here is the test log. Telnet and ssh debug are at the bottom.<br> > 1 Start slynk with :dont-close t<br> > <br> > Modified startup script:<br> > <br> > (let ((port 4005))<br> >=C2=A0 =C2=A0 =C2=A0(slynk:create-server :port port :dont-close t)<br> >=C2=A0 =C2=A0 =C2=A0(format t "~% Created SLYNK server on port ~a&= quot; port))<br> > (setf slynk:*use-dedicated-output-stream* nil)<br> > <br> > 2 Started tunnel with verbose option, -v switch<br> > <br> > $ ssh -v -L4005:hal9000:4005 mirko@hal9000<br> > <br> > 3 Telnet on laptop side to laptop port 4005<br> > <br> > @laptop> telnet localhost 4005<br> > Trying ::1...<br> > Connected to localhost.<br> > Escape character is '^]'.<br> > Connection closed by foreign host.<br> > <br> > 4 SSH debug output<br> > <br> > @hal9000> debug1: Connection to port 4005 forwarding to hal9000 por= t<br> > 4005 requested.<br> > debug1: channel 3: new [direct-tcpip]<br> > channel 3: open failed: connect failed: Connection refused<br> > debug1: channel 3: free: direct-tcpip: listening port 4005 for hal9000= <br> > port 4005, connect from ::1 port 64100 to ::1 port 4005, nchannels 4<b= r> <br> It looks like hal9000 is resolving to the IPv6 localhost address ::1 on<br> hal9000, but the Lisp is probably only listening on IPv4.<br> <br> Try restarting the tunnel with -L4005:<a href=3D"http://127.0.0.1:4005" rel= =3D"noreferrer" target=3D"_blank">127.0.0.1:4005</a> to force IPv4.<br> <br> __Martin<br></blockquote><div><br></div><div>I restarted tunnel with IPv4: = Now when I type something in the telnet session, I get Lisp to respond (wit= h debugger in this case). Sly is still not connecting - maybe I need to res= tart emacs.</div><div><br></div><div>Log:</div><div><div id=3D"gmail-conten= t" style=3D"color:rgb(0,0,0);font-family:"Times New Roman";font-s= ize:medium"><div id=3D"gmail-outline-container-org2d6c770" class=3D"gmail-o= utline-2"><h2 id=3D"gmail-org2d6c770"><span class=3D"gmail-section-number-2= ">1</span>=C2=A0Start slynk with=C2=A0<code>:dont-close t</code>=C2=A0as be= fore</h2></div><div id=3D"gmail-outline-container-orgc94a94d" class=3D"gmai= l-outline-2"><h2 id=3D"gmail-orgc94a94d"><span class=3D"gmail-section-numbe= r-2">2</span>=C2=A0Start tunnel with verbose option,=C2=A0<code>-v</code>= =C2=A0switch and IPv4</h2><div class=3D"gmail-outline-text-2" id=3D"gmail-t= ext-2"><pre class=3D"example" style=3D"border:1px solid rgb(204,204,204);pa= dding:8pt;overflow:auto;margin:1.2em">$ ssh -v -L4005:<a href=3D"http://127= .0.0.1:4005">127.0.0.1:4005</a> 977315@hal9000 </pre></div></div><div id=3D"gmail-outline-container-org959bd82" class=3D"g= mail-outline-2"><h2 id=3D"gmail-org959bd82"><span class=3D"gmail-section-nu= mber-2">3</span>=C2=A0Telnet on laptop side to laptop port 4005</h2><div cl= ass=3D"gmail-outline-text-2" id=3D"gmail-text-3"><pre class=3D"example" sty= le=3D"border:1px solid rgb(204,204,204);padding:8pt;overflow:auto;margin:1.= 2em">@laptop> telnet localhost 4005 Trying ::1... Connected to localhost. Escape character is '^]'. </pre></div><div id=3D"gmail-outline-container-org9fd5e73" class=3D"gmail-o= utline-3"><h3 id=3D"gmail-org9fd5e73"><span class=3D"gmail-section-number-3= ">3.1</span>=C2=A0SSH debug output to telnet start</h3><div class=3D"gmail-= outline-text-3" id=3D"gmail-text-3-1"><pre class=3D"example" style=3D"borde= r:1px solid rgb(204,204,204);padding:8pt;overflow:auto;margin:1.2em">debug1= : Connection to port 4005 forwarding to 127.0.0.1 port 4005 requested. debug1: channel 3: new [direct-tcpip] </pre></div></div></div><div id=3D"gmail-outline-container-org3943f79" clas= s=3D"gmail-outline-2"><h2 id=3D"gmail-org3943f79"><span class=3D"gmail-sect= ion-number-2">4</span>=C2=A0Send command via=C2=A0<code>telnet</code>=C2=A0= session</h2><div class=3D"gmail-outline-text-2" id=3D"gmail-text-4"><p>Usin= g=C2=A0<code>telnet</code>=C2=A0session send command:</p><pre class=3D"exam= ple" style=3D"border:1px solid rgb(204,204,204);padding:8pt;overflow:auto;m= argin:1.2em">*features* Connection closed by foreign host. </pre></div><div id=3D"gmail-outline-container-org0ef4685" class=3D"gmail-o= utline-3"><h3 id=3D"gmail-org0ef4685"><span class=3D"gmail-section-number-3= ">4.1</span>=C2=A0Results in an error in lisp due to syntax error</h3><div = class=3D"gmail-outline-text-3" id=3D"gmail-text-4-1"><pre class=3D"example"= style=3D"border:1px solid rgb(204,204,204);padding:8pt;overflow:auto;margi= n:1.2em">;; slynk:close-connection: Not an integer string: "*featu&quo= t; ;; closing 0 channels ;; closing 0 listeners ;; Event history start: decode-message close-connection: Not an integer string: "\x00FF\x00F4\x00FF\x00FD\x00= FF" ... close-connection Not an integer string: "\x00FF\x00F4\x00FF\x00FD\x00F= F" ... done. decode-message close-connection: Not an integer string: "*featu" ... ;; Event history end. ;; Backtrace: 0: (NIL #<Unknown Arguments>) 1: (NIL #<Unknown Arguments>) 2: (SLYNK-BACKEND:CALL-WITH-DEBUGGING-ENVIRONMENT #<Compiled-function (:= INTERNAL SLYNK::SAFE-BACKTRACE) (Non-Global) #x302000A0BFFF>) 3: (SLYNK::SAFE-BACKTRACE) 4: (SLYNK::SIGNAL-SLYNK-ERROR #<CCL::PARSE-INTEGER-NOT-INTEGER-STRING #x= 302000C1F32D> NIL) 5: (SIGNAL #<CCL::PARSE-INTEGER-NOT-INTEGER-STRING #x302000C1F32D>) 6: (CCL::%ERROR #<CCL::PARSE-INTEGER-NOT-INTEGER-STRING #x302000C1F32D&g= t; (:STRING "*featu") 5975725205395) 7: (PARSE-INTEGER "*featu" :START 0 :END 6 :RADIX 16 :JUNK-ALLOWE= D NIL) 8: (SLYNK-RPC:READ-PACKET #<BASIC-TCP-STREAM ISO-8859-1 (SOCKET/4) #x302= 000BDFD9D>) 9: (SLYNK-RPC:READ-MESSAGE #<BASIC-TCP-STREAM ISO-8859-1 (SOCKET/4) #x30= 2000BDFD9D> #<Package "SLYNK-IO-PACKAGE">) 10: (SLYNK::DECODE-MESSAGE #<BASIC-TCP-STREAM ISO-8859-1 (SOCKET/4) #x30= 2000BDFD9D>) 11: (SLYNK::READ-LOOP #<MULTITHREADED-CONNECTION #x302000BDEFCD>) 12: (CCL::RUN-PROCESS-INITIAL-FORM #<PROCESS reader-thread(9) [Active] #= x302000BFEFBD> (#<COMPILED-LEXICAL-CLOSURE (:INTERNAL CCL::%PROCESS-R= UN-FUNCTION) #x302000BFED2F>)) 13: ((:INTERNAL (CCL::%PROCESS-PRESET-INTERNAL (PROCESS))) #<PROCESS rea= der-thread(9) [Active] #x302000BFEFBD> (#<COMPILED-LEXICAL-CLOSURE (:= INTERNAL CCL::%PROCESS-RUN-FUNCTION) #x302000BFED2F>)) 14: ((:INTERNAL CCL::THREAD-MAKE-STARTUP-FUNCTION)) ;; Connection to Emacs lost. [ ;; condition: Not an integer string: "*featu" ;; type: CCL::PARSE-INTEGER-NOT-INTEGER-STRING ;; style: :SPAWN] </pre></div></div></div></div><div id=3D"gmail-postamble" class=3D"gmail-st= atus" style=3D"color:rgb(0,0,0);font-family:"Times New Roman";fon= t-size:medium"><p class=3D"gmail-date" style=3D"font-size:14.4px;margin:0.2= em"><br></p></div></div></div></div> --0000000000007f75ab05a252d0bc--