Re: [ntp:questions] refid 'STC ' ? What does STC signify?
phr...@gmail.com wrote in message news:bef5f066-1c61-4ff4-8cc0-c0cfad9ec...@n33g2000pri.googlegroups.com... [...] So other than using ntptrace to see if the refclock is reported as an upstream server (an unlikely stratum 0) or something else, there's really no way to know what the heck it is in reality. I can't say that idea gives me a warm, fuzzy feeling. And you are totally right. Trust is hard on the Internet. It is often best established out-of-band. Ntptrace can help, though. Correct me if I'm wrong, but my non-caffeinated brain is telling me someone driven by a budget could set up a server using nothing but it's LCL clock as a source but fudge the ID to be something else. On an isolated network, there'd be no way to detect this (assuming for this academic argument you don't wear a reasonably accurate watch). I can imagine a group of such servers peering with each other endlessly hunting around themselves. Again, you're completely right. (You were already told you look decidedly non-stupid, right?) However, if you're caught in such an isolated network, you're probably close enough that (a) you _can_ detect your situation, and (b) you know who to walk up to and throw The Book[0] at. If ntpd came with a fixStupidNtpConf.ss script, I'd feel better about this. That's actually very easy. Configure three Pool servers. It's really hard to do worse with that than with any recogniseably stupid configuration. On the other hand, if you have the intelligence to recognise your configuration as stupid, you can probably also do better than the Pool. Groetjes, Maarten Wiltink [0] The NTP Book, that is. There is one. His Timeliness Dave Mills wrote it. ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] refid 'STC ' ? What does STC signify?
Steve, Steve Kostecke wrote: Here is the list I assembled from the current driver pages: Driver Name Ref-Id -- -- 1 Undisciplined Local Clock LCL 2 Trak 8820 GPS Receiver GPS 3 PSTI/Traconex 1020 WWV/WWVH Receiver WWV 4 WWVB/GPS ReceiversWWVB 5 TrueTime GPS/GOES/OMEGA Receivers GPS, OMEGA, GOES 6 IRIG Audio Decoder IRIG 7 Radio CHU Audio Demodulator/DecoderCHU 8 Generic Reference Driver PARSE 9 Magnavox MX4200 GPS Receiver GPS 10 Austron 2200A/2201A GPS Receivers GPS 11 Arbiter 1088A/B GPS Receiver GPS 12 KSI/Odetics TPRO/S IRIG Interface IRIG 16 Bancomm bc635VME Time and Frequency Processor BTFP 18 NIST/USNO/PTB Modem Time Services NIST 19 Heath WWV/WWVH ReceiverWWV 20 Generic NMEA GPS Receiver GPS 22 PPS Clock Discipline PPS 26 Hewlett Packard 58503A GPS Receiver and HP Z3801A GPS 27 Arcron MSF ReceiverMSFa, MSF, DCF, WWVB 28 Shared memoy DriverSHM 29 Trimble Palisade and Thunderbolt Receivers GPS 31 Rockwell Jupiter GPS Receiver GPS 32 Chrono-log K-series WWVB receiver CHRONOLOG 33 Dumb Clock DUMBCLOCK 34 Ultralink ClockWWVB 35 Conrad parallel port radio clock PCF 36 Radio WWV/H Audio Demodulator/Decoder WVf or WHf 37 Forum Graphic GPS Dating station GPS 38 hopf clock drivers by ATLSoft HOPF (default), GPS, DCF 39 hopf clock drivers by ATLSoft HOPF (default), GPS, DCF 40 JJY Receivers JJY 42 Zyfer GPStarplus Receiver GPS 43 RIPE NCC interface for Trimble PalisadeRIPENCC 44 NeoClock4X NEOL As has been mentioned elsewhere in this thread, the Reference ID may be set in ntp.conf. AFAIK the refid (as reported in the ntpq -p billboard) can only have up to 4 characters since it's transported in a 32 bit value in the NTP packet, so it's not possible to set it e.g. to OMEGA or DUMBCLOCK. Also, e.g. the parse driver sets the default refid for a refclock depending on the mode, e.g. DCFp, DCFa, or GPS. And yes, the refid of a refclock can be set in ntp.conf, e.g.: server 172.127.8.0 mode 2# sets the refid to DCFa fudge 172.127.8.0 refid STC # changes the refid to STC ;-) Martin -- Martin Burnicki Meinberg Funkuhren Bad Pyrmont Germany ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] refid 'STC ' ? What does STC signify?
On Jan 22, 8:57 am, Martin Burnicki martin.burni...@meinberg.de wrote: Steve, Steve Kostecke wrote: Here is the list I assembled from the current driver pages: Driver Name Ref-Id -- -- 1 Undisciplined Local Clock LCL 2 Trak 8820 GPS Receiver GPS 3 PSTI/Traconex 1020 WWV/WWVH Receiver WWV 4 WWVB/GPS ReceiversWWVB 5 TrueTime GPS/GOES/OMEGA Receivers GPS, OMEGA, GOES 6 IRIG Audio Decoder IRIG 7 Radio CHU Audio Demodulator/DecoderCHU 8 Generic Reference Driver PARSE 9 Magnavox MX4200 GPS Receiver GPS 10 Austron 2200A/2201A GPS Receivers GPS 11 Arbiter 1088A/B GPS Receiver GPS 12 KSI/Odetics TPRO/S IRIG Interface IRIG 16 Bancomm bc635VME Time and Frequency Processor BTFP 18 NIST/USNO/PTB Modem Time Services NIST 19 Heath WWV/WWVH ReceiverWWV 20 Generic NMEA GPS Receiver GPS 22 PPS Clock Discipline PPS 26 Hewlett Packard 58503A GPS Receiver and HP Z3801A GPS 27 Arcron MSF ReceiverMSFa, MSF, DCF, WWVB 28 Shared memoy DriverSHM 29 Trimble Palisade and Thunderbolt Receivers GPS 31 Rockwell Jupiter GPS Receiver GPS 32 Chrono-log K-series WWVB receiver CHRONOLOG 33 Dumb Clock DUMBCLOCK 34 Ultralink ClockWWVB 35 Conrad parallel port radio clock PCF 36 Radio WWV/H Audio Demodulator/Decoder WVf or WHf 37 Forum Graphic GPS Dating station GPS 38 hopf clock drivers by ATLSoft HOPF (default), GPS, DCF 39 hopf clock drivers by ATLSoft HOPF (default), GPS, DCF 40 JJY Receivers JJY 42 Zyfer GPStarplus Receiver GPS 43 RIPE NCC interface for Trimble PalisadeRIPENCC 44 NeoClock4X NEOL As has been mentioned elsewhere in this thread, the Reference ID may be set in ntp.conf. AFAIK the refid (as reported in the ntpq -p billboard) can only have up to 4 characters since it's transported in a 32 bit value in the NTP packet, so it's not possible to set it e.g. to OMEGA or DUMBCLOCK. Also, e.g. the parse driver sets the default refid for a refclock depending on the mode, e.g. DCFp, DCFa, or GPS. And yes, the refid of a refclock can be set in ntp.conf, e.g.: server 172.127.8.0 mode 2# sets the refid to DCFa fudge 172.127.8.0 refid STC # changes the refid to STC ;-) Martin -- Martin Burnicki Meinberg Funkuhren Bad Pyrmont Germany So other than using ntptrace to see if the refclock is reported as an upstream server (an unlikely stratum 0) or something else, there's really no way to know what the heck it is in reality. I can't say that idea gives me a warm, fuzzy feeling. Correct me if I'm wrong, but my non-caffeinated brain is telling me someone driven by a budget could set up a server using nothing but it's LCL clock as a source but fudge the ID to be something else. On an isolated network, there'd be no way to detect this (assuming for this academic argument you don't wear a reasonably accurate watch). I can imagine a group of such servers peering with each other endlessly hunting around themselves. If ntpd came with a fixStupidNtpConf.ss script, I'd feel better about this. Phreon ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] refid 'STC ' ? What does STC signify?
On Jan 22, 9:40 am, Steve Kostecke koste...@ntp.org wrote: On 2009-01-22, Martin Burnicki martin.burni...@meinberg.de wrote: Steve Kostecke wrote: [---=| Quote block shrinked by t-prot: 35 lines snipped |=---] GPS, DCF 39 hopf clock drivers by ATLSoft HOPF (default), GPS, DCF 40 JJY Receivers JJY 42 Zyfer GPStarplus Receiver GPS 43 RIPE NCC interface for Trimble PalisadeRIPENCC 44 NeoClock4X NEOL AFAIK the refid (as reported in the ntpq -p billboard) can only have up to 4 characters since it's transported in a 32 bit value in the NTP packet, so it's not possible to set it e.g. to OMEGA or DUMBCLOCK. Please see the reference IDs listed on the following pages (among others): http://www.eecis.udel.edu/~mills/ntp/html/drivers/driver5.htmlhttp://www.eecis.udel.edu/~mills/ntp/html/drivers/driver33.htmlhttp://www.eecis.udel.edu/~mills/ntp/html/drivers/driver43.html I assembled a list based on the Official Distribution Documentation to provide some useful information to our news-group readers in place of the usual dismissive reply of RTFM. If there are errors in the documentation please contact the documentation maintainer. -- Steve Kostecke koste...@ntp.org NTP Public Services Project -http://support.ntp.org/ Thanks for the links. I did indeed RTFM, including the links provided, but as noted in other posts in this thread, STC is not known and the refid field can be fudged to any 4 char. string (I did overlook the important nugget). Experience has taught me that if Google searches of the web or usenet produce zero valid hits, I'm looking for something extremely esoteric or the information doesn't exist in any online form. This is why I came to this group. I haven't dug into the code for each driver yet, but I didn't think it's unreasonable to *hope* the information I was seeking is available in the official documentation rather than having to sift through actual code. NTP seems unique that much of the information necessary to understand and effectively administer it is scattered about many sources and is often buried in text. I liken it to trying to learn DVORAK on a keyboard that has no markings by reading the engineering specifications and firmware code. I've read the ( NTP v3) RFC cover to cover in a previous life, but one of my failings is I don't remember all the fine details if I don't use them on a regular basis. Either way, as lazy as it sounds, my job keeps me busy enough that I can't spend much time tilting at this windmill. Thanks, Phreon ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] refid 'STC ' ? What does STC signify?
Phreon, phr...@gmail.com wrote: On Jan 22, 8:57 am, Martin Burnicki martin.burni...@meinberg.de wrote: [...] And yes, the refid of a refclock can be set in ntp.conf, e.g.: server 172.127.8.0 mode 2# sets the refid to DCFa fudge 172.127.8.0 refid STC # changes the refid to STC ;-) So other than using ntptrace to see if the refclock is reported as an upstream server (an unlikely stratum 0) or something else, there's really no way to know what the heck it is in reality. Right. However, there are institutes like the German PTB (www.ptb.de) who are operating their own public NTP servers and have fudged their refid to PTB. I can't say that idea gives me a warm, fuzzy feeling. Correct me if I'm wrong, but my non-caffeinated brain is telling me someone driven by a budget could set up a server using nothing but it's LCL clock as a source but fudge the ID to be something else. If the server is operated by a trusted intitution then this is OK. If the server belongs to the public pool servers then a large offset will be noticed and the server removed from the pool. Using some server on the internet without knowing who operates them is not good policy, and you're on your own risk. Anyway, if you'd configure several upstream servers then a freewheeling stratum 1 should automatically be detected and discarded. On an isolated network, there'd be no way to detect this (assuming for this academic argument you don't wear a reasonably accurate watch). I can imagine a group of such servers peering with each other endlessly hunting around themselves. If there is an NTP server on an isolated network then there is also an administrator who has installed that server, so you can contact him. If ntpd came with a fixStupidNtpConf.ss script, I'd feel better about this. I don't think such a script is a good idea. Martin -- Martin Burnicki Meinberg Funkuhren Bad Pyrmont Germany ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] refid 'STC ' ? What does STC signify?
Steve, Steve Kostecke wrote: On 2009-01-22, Martin Burnicki martin.burni...@meinberg.de wrote: Steve Kostecke wrote: [---=| Quote block shrinked by t-prot: 35 lines snipped |=---] GPS, DCF 39 hopf clock drivers by ATLSoft HOPF (default), GPS, DCF 40 JJY Receivers JJY 42 Zyfer GPStarplus Receiver GPS 43 RIPE NCC interface for Trimble PalisadeRIPENCC 44 NeoClock4X NEOL AFAIK the refid (as reported in the ntpq -p billboard) can only have up to 4 characters since it's transported in a 32 bit value in the NTP packet, so it's not possible to set it e.g. to OMEGA or DUMBCLOCK. Please see the reference IDs listed on the following pages (among others): http://www.eecis.udel.edu/~mills/ntp/html/drivers/driver5.html http://www.eecis.udel.edu/~mills/ntp/html/drivers/driver33.html http://www.eecis.udel.edu/~mills/ntp/html/drivers/driver43.html I assembled a list based on the Official Distribution Documentation to provide some useful information to our news-group readers in place of the usual dismissive reply of RTFM. Yes, it's a good idea, but unfortunately there seem to be quite some discrepancies between those docs and the current code. A quick grep over the ntp-dev sources shows that for some refids just the first 4 characters are used on the wire (e.g. DUMBCLOCK - DUMB) whereas for some refclock types the refid in the code just differs from the docs (e.g. RIPENCC - GPS\0. If there are errors in the documentation please contact the documentation maintainer. We both know it's not easy to submit fixes for the docs, and in case of the refclocks it may be even worse since most refclocks have different maintainers, but the docs are on Dave's server. Martin -- Martin Burnicki Meinberg Funkuhren Bad Pyrmont Germany ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] refid 'STC ' ? What does STC signify?
On 2009-01-22, phr...@gmail.com phr...@gmail.com wrote: Thanks for the links. I did indeed RTFM, including the links provided, but as noted in other posts in this thread, Those links where to show that the Reference IDs in the list I assembled were correct as documented. STC is not known and the refid field can be fudged to any 4 char. string (I did overlook the important nugget). If could be .FOOT. .HAND. .HEAD. or any other word up to 4 letters in length. Experience has taught me that if Google searches of the web or usenet produce zero valid hits, I'm looking for something extremely esoteric or the information doesn't exist in any online form. This is why I came to this group. I haven't dug into the code for each driver yet, but I didn't think it's unreasonable to *hope* the information I was seeking is available in the official documentation rather than having to sift through actual code. It only takes a few seconds to grep an NTP source tree for 'STC' (or any other string. Hardly a difficult task. -- Steve Kostecke koste...@ntp.org NTP Public Services Project - http://support.ntp.org/ ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] refid 'STC ' ? What does STC signify?
It only takes a few seconds to grep an NTP source tree for 'STC' (or any other string. Hardly a difficult task. -- Steve Kostecke koste...@ntp.org NTP Public Services Project -http://support.ntp.org/ Grepping is easy. Which source tree shall I download and search? How do I know the server in question isn't running a god awful, ancient SCO fork? Or isn't an appliance? Let us say that I spent more time than I should have on Dr. Mill's site and NTP.org in addition to playing with Google and this newsgroup before posting a question of such minor consequence. Can we put to rest the idea that every newbie who posts a question in this group is a feckless boob who in incapable of researching even the simplest nugget of information? Sometimes one senses it's worth going straight to the experts. Honestly, this thread should have died after Martin's first post, but I just can't resist when RTFM is invoked. I wonder how long before we bring Hitler into the fray? NTP(d) is a fantastic tool and I sincerely appreciate all the hard work that goes into it, but it has to be the only defacto standard tool I use, commercial or GPL, where it's suggested one should search software code in an attempt to decipher simple diagnostic output. Of course this is a moot point since even if there was a list of all the known refids and their meanings, it would be meaningless since one can fudge the field to be any four letter word (I can think of a few). FWIW, sometimes while pursuing a problem, it's just not possible to ring up the system in question's admin. Corporate politics is a strange beast. I think the best answer I've seen yet is in effect, I don't know. Fair enough. Thanks, Phreon ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] refid 'STC ' ? What does STC signify?
On 2009-01-22, phr...@gmail.com phr...@gmail.com wrote: It only takes a few seconds to grep an NTP source tree for 'STC' (or any other string. Hardly a difficult task. Grepping is easy. Which source tree shall I download and search? To the best of my knowledge no driver has ever been removed from the Reference Implementation Distribution. How do I know the server in question isn't running a god awful, ancient SCO fork? Or isn't an appliance? ntpq -crv should provide some basic information about the ntpd in question. Would you care to post that time server's hostname? Let us say that I spent more time than I should have on Dr. Mill's site and NTP.org in addition to playing with Google and this newsgroup before posting a question of such minor consequence. You would not be the first person to do so. Can we put to rest the idea that every newbie who posts a question in this group is a feckless boob who in incapable of researching even the simplest nugget of information? Sometimes one senses it's worth going straight to the experts. You asked for a list of known Reference IDs. You got the list of what's in the documentation. No one else has stepped forward to add any. Honestly, this thread should have died after Martin's first post, but I just can't resist when RTFM is invoked. Of course ... g I wonder how long before we bring Hitler into the fray? You just did. NTP(d) is a fantastic tool and I sincerely appreciate all the hard work that goes into it, but it has to be the only defacto standard tool I use, commercial or GPL, where it's suggested one should search software code in an attempt to decipher simple diagnostic output. This has been discussed in the past. One more than one occasion. Of course this is a moot point since even if there was a list of all the known refids and their meanings, it would be meaningless since one can fudge the field to be any four letter word (I can think of a few). Chances are that this particular Reference ID was set locally. I think the best answer I've seen yet is in effect, I don't know. The Reference ID in question is, AFAIKT, not a part of any driver in The NTP Reference Implementation. -- Steve Kostecke koste...@ntp.org NTP Public Services Project - http://support.ntp.org/ ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] refid 'STC ' ? What does STC signify?
phr...@gmail.com writes: It only takes a few seconds to grep an NTP source tree for 'STC' (or any other string. Hardly a difficult task. -- Steve Kostecke koste...@ntp.org NTP Public Services Project -http://support.ntp.org/ Grepping is easy. Which source tree shall I download and search? How do I know the server in question isn't running a god awful, ancient SCO fork? Or isn't an appliance? You may of course do whatever you want. Why the hell are you suddenly getting all defensive? Also why not tell us the address of this server that has STC as its source. Let us say that I spent more time than I should have on Dr. Mill's site and NTP.org in addition to playing with Google and this newsgroup before posting a question of such minor consequence. Can we put to Lets say you did. The next sentence is a non-sequiter. rest the idea that every newbie who posts a question in this group is a feckless boob who in incapable of researching even the simplest nugget of information? Sometimes one senses it's worth going straight to the experts. Honestly, this thread should have died after Martin's first post, but I just can't resist when RTFM is invoked. I wonder how long before we bring Hitler into the fray? Defensive aren't you. Steve posted for you the complete list of refclock identifiers from the ntp sources. Did yo usay thank you? He then suggested that you could also search the source code for that string. I did. It does not exist. NTP(d) is a fantastic tool and I sincerely appreciate all the hard work that goes into it, but it has to be the only defacto standard tool I use, commercial or GPL, where it's suggested one should search software code in an attempt to decipher simple diagnostic output. Of Since the software produces the code, the software is the logical place to look. It does nto exist there. Thus the server that creates that ouput must either be hacked, or as suggested, use was made of a feature of that code to give any name desired. course this is a moot point since even if there was a list of all the known refids and their meanings, it would be meaningless since one can fudge the field to be any four letter word (I can think of a few). FWIW, sometimes while pursuing a problem, it's just not possible to ring up the system in question's admin. Corporate politics is a strange beast. I think the best answer I've seen yet is in effect, I don't know. Fair enough. But you seem to have be unwilling to accept that, and you are unwilling to accept people who go to trouble trying hard to help you. ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] refid 'STC ' ? What does STC signify?
Steve Kostecke koste...@ntp.org writes: On 2009-01-22, phr...@gmail.com phr...@gmail.com wrote: Thanks for the links. I did indeed RTFM, including the links provided, but as noted in other posts in this thread, Those links where to show that the Reference IDs in the list I assembled were correct as documented. STC is not known and the refid field can be fudged to any 4 char. string (I did overlook the important nugget). If could be .FOOT. .HAND. .HEAD. or any other word up to 4 letters in length. Experience has taught me that if Google searches of the web or usenet produce zero valid hits, I'm looking for something extremely esoteric or the information doesn't exist in any online form. This is why I came to this group. I haven't dug into the code for each driver yet, but I didn't think it's unreasonable to *hope* the information I was seeking is available in the official documentation rather than having to sift through actual code. It only takes a few seconds to grep an NTP source tree for 'STC' (or any other string. Hardly a difficult task. STC does not occur as a string anywhere in the 4.2.4p4 source tree except as part of a longer word. Thus STC must have been inserted by that server. Why do you not tell us what the address of that server is and perhaps we can help you? -- Steve Kostecke koste...@ntp.org NTP Public Services Project - http://support.ntp.org/ ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] refid 'STC ' ? What does STC signify?
phr...@gmail.com wrote: It only takes a few seconds to grep an NTP source tree for 'STC' (or any other string. Hardly a difficult task. -- Steve Kostecke koste...@ntp.org NTP Public Services Project -http://support.ntp.org/ Grepping is easy. Which source tree shall I download and search? How do I know the server in question isn't running a god awful, ancient SCO fork? Or isn't an appliance? Any of the ntp sources from the download site. Unpack the tar file and grep the ntpd/refclock*.c files and search for the REFID macro. This is not guaranteed to the the way the ID has been put in but it is that way for most of the refclock drivers. Let us say that I spent more time than I should have on Dr. Mill's site and NTP.org in addition to playing with Google and this newsgroup before posting a question of such minor consequence. Can we put to rest the idea that every newbie who posts a question in this group is a feckless boob who in incapable of researching even the simplest nugget of information? Sometimes one senses it's worth going straight to the experts. Honestly, this thread should have died after Martin's first post, but I just can't resist when RTFM is invoked. I wonder how long before we bring Hitler into the fray? Your questions have been quite intelligent and are not to be considered newbie questions in any case. A large number of the commonly asked questions (you remember FAQ's?) have been gathered into the wiki along with answers. Some questions don't have easy answers and are argued over endlessly. NTP(d) is a fantastic tool and I sincerely appreciate all the hard work that goes into it, but it has to be the only defacto standard tool I use, commercial or GPL, where it's suggested one should search software code in an attempt to decipher simple diagnostic output. Of course this is a moot point since even if there was a list of all the known refids and their meanings, it would be meaningless since one can fudge the field to be any four letter word (I can think of a few). The reason for that is that every driver keeps its id inside the refclock module where it really belongs. That keeps it local. Do different refclocks emit the same ID's? Yes, there are a whole bunch of refclocks which are set to GPS. We don't think that this is a flaw since the ID itself is just advisory, it has no effect on the performance of ntpd. FWIW, sometimes while pursuing a problem, it's just not possible to ring up the system in question's admin. Corporate politics is a strange beast. Some stratum 1 servers are publicly listed along with contact information but that's really optional. I think the best answer I've seen yet is in effect, I don't know. Fair enough. Noone has seen it as a priority to do the work to put together a definitive list and as previously mentioned you can redefine the ID in the configuration file. Danny Thanks, Phreon ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
[ntp:questions] refid 'STC ' ? What does STC signify?
I have come across a few stratum 1 time servers that show STC as their refid. I can find no information in this group or in a general Google search that indicates what this particular id signifies. Can one of you provide enlightenment? Or a list of all the currently known/possible refids and their significance? Thanks ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] refid 'STC ' ? What does STC signify?
phr...@gmail.com wrote: I have come across a few stratum 1 time servers that show STC as their refid. I can find no information in this group or in a general Google search that indicates what this particular id signifies. Can one of you provide enlightenment? Or a list of all the currently known/possible refids and their significance? I don't know what STC is but the list of refclock drivers are here: http://www.eecis.udel.edu/~mills/ntp/html/refclock.html though the driver id's are in the code of each of the driver implementation modules. I believe you can also set it in the ntp.conf file. Danny ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] refid 'STC ' ? What does STC signify?
On 2009-01-21, phr...@gmail.com phr...@gmail.com wrote: Or a list of all the currently known/possible refids and their significance? The Reference IDs are documented in the driver pages of the distribution documentation: NTP-Dev: http://www.eecis.udel.edu/~mills/ntp/html/refclock.html Stable: http://doc.ntp.org/ Here is the list I assembled from the current driver pages: Driver Name Ref-Id -- -- 1 Undisciplined Local Clock LCL 2 Trak 8820 GPS Receiver GPS 3 PSTI/Traconex 1020 WWV/WWVH Receiver WWV 4 WWVB/GPS ReceiversWWVB 5 TrueTime GPS/GOES/OMEGA Receivers GPS, OMEGA, GOES 6 IRIG Audio Decoder IRIG 7 Radio CHU Audio Demodulator/DecoderCHU 8 Generic Reference Driver PARSE 9 Magnavox MX4200 GPS Receiver GPS 10 Austron 2200A/2201A GPS Receivers GPS 11 Arbiter 1088A/B GPS Receiver GPS 12 KSI/Odetics TPRO/S IRIG Interface IRIG 16 Bancomm bc635VME Time and Frequency Processor BTFP 18 NIST/USNO/PTB Modem Time Services NIST 19 Heath WWV/WWVH ReceiverWWV 20 Generic NMEA GPS Receiver GPS 22 PPS Clock Discipline PPS 26 Hewlett Packard 58503A GPS Receiver and HP Z3801A GPS 27 Arcron MSF ReceiverMSFa, MSF, DCF, WWVB 28 Shared memoy DriverSHM 29 Trimble Palisade and Thunderbolt Receivers GPS 31 Rockwell Jupiter GPS Receiver GPS 32 Chrono-log K-series WWVB receiver CHRONOLOG 33 Dumb Clock DUMBCLOCK 34 Ultralink ClockWWVB 35 Conrad parallel port radio clock PCF 36 Radio WWV/H Audio Demodulator/Decoder WVf or WHf 37 Forum Graphic GPS Dating station GPS 38 hopf clock drivers by ATLSoft HOPF (default), GPS, DCF 39 hopf clock drivers by ATLSoft HOPF (default), GPS, DCF 40 JJY Receivers JJY 42 Zyfer GPStarplus Receiver GPS 43 RIPE NCC interface for Trimble PalisadeRIPENCC 44 NeoClock4X NEOL As has been mentioned elsewhere in this thread, the Reference ID may be set in ntp.conf. -- Steve Kostecke koste...@ntp.org NTP Public Services Project - http://support.ntp.org/ ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
