Re: Not keeping correct time
On Tue, 20 Aug 1996, Shaya Potter wrote: Whenever I try to do a netdate to any site, I get a connection refused error, I done both tcp and udp. Could it be because I am behind a firewall? Very possibly. The reason your system clock gains/looses time (one or the other, not both) is that the timer that the system uses runs of the system crystal and is not dividable to an even second. Your calendar clock does not suffer from this problem and is far more accurate. Thus 'clock -s' will reset the system clock to the more accurate calendar clock. These clocks tend to stay within 1 sec/year of the correct time. If this kind of accuracy is not sufficient then you will need to learn about breaking out of firewalls. I am totaly ignorant on this subject, so please tell us what you learn. Luck, Dwarf -- aka Dale Scheetz Phone: 1 (904) 877-0257 Flexible Software Fax: NONE Black Creek Critters e-mail: [EMAIL PROTECTED] If you don't see what you want, just ask --
Re: Not keeping correct time
Shaya Potter writes: I just noticed that my linux box dosen't seem to be keeping correct time. I tried running xntp to correct it, but it wouldn't work (does it work behind firewalls?) Does anyone know of an efficient way to make my linux box keep correct time? If you don't want to go over the internet you could try adjtimex. This package adjusts the kernel timex variable and makes your system keep the time pretty well. If it works well you should think about a BIOS write command (clock -w), too. Michael -- Michael Meskes |_ __ [EMAIL PROTECTED] | / ___// / // / / __ \___ __ [EMAIL PROTECTED] | \__ \/ /_ / // /_/ /_/ / _ \/ ___/ ___/ [EMAIL PROTECTED]| ___/ / __/ /__ __/\__, / __/ / (__ ) Use Debian Linux!| //_/ /_/ //\___/_/ //
Re: Not keeping correct time
: On Mon, 19 Aug 1996, Shaya Potter wrote: Subject: Re: Not keeping correct time : : I just noticed that my linux box dosen't seem to be keeping correct : time. I tried running xntp to correct it, but it wouldn't work (does : it work behind firewalls?) Does anyone know of an efficient way to : make my linux box keep correct time? I don't know if xntp works behind firewalls, but as a test you can try running ntpdate, which should be part of the same package. Run # ntpdate -d list of hosts as root (without xntpd running). You should get back about a page of information for each remote host and, at the bottom, it should tell you which host it liked and how far off your clock is. Note that the remote hosts must be running the xntpd server for this to work. Chris -)- -- Christopher R. Hertel -)- University of Minnesota [EMAIL PROTECTED] Networking and Telecommunications Services
Re: Not keeping correct time
Hi, I have these two lines in a script that cron runs nightly for root netdate tcp hostname_of_a_timeserver clock -u -w clock is inteligent enough to correct systematic errors. The options for this are controled in /etc/adjtime. The clock is adjusted everytime you boot. If you want this more frequently, put an clock -au into cron.daily. Of course netdate is the better solution, as long as you have net-access. Greetings Bernd
Re: Not keeping correct time
Shaya Potter [EMAIL PROTECTED] writes: Whenever I try to do a netdate to any site, I get a connection refused error, I done both tcp and udp. Could it be because I am behind a firewall? Don't know if this will help, but the xntp-docs says the following about ntpdate: -u Direct ntpdate to use an unprivileged port or outgoing packets. This is most useful when behind a firewall that blocks incoming traffic to privileged ports, and you want to synchronise with hosts beyond the firewall. Note that the -d option always uses unprivileged ports. Vebby
Not keeping correct time
I just noticed that my linux box dosen't seem to be keeping correct time. I tried running xntp to correct it, but it wouldn't work (does it work behind firewalls?) Does anyone know of an efficient way to make my linux box keep correct time? Thanks Shaya -- Shaya Potter [EMAIL PROTECTED]
Re: Not keeping correct time
Shaya Potter writes: Shaya I just noticed that my linux box dosen't seem to be keeping correct Shaya time. File that under advantages of being IBM PC compatible :-) Shaya Does anyone know of an efficient way to make my linux box keep Shaya correct time? I have these two lines in a script that cron runs nightly for root netdate tcp hostname_of_a_timeserver clock -u -w Netdate is in netstd, you already have it. I am sure that you can find a timeserver in your domain, if not, pointers to do them are in the xntp doc. Afterwards, clock -u -w writes (-w) the correctly set time into the bios using GMT (-u) time. -- Dirk Eddelbuttel http://qed.econ.queensu.ca/~edd
Re: Not keeping correct time
On Mon, 19 Aug 1996, Shaya Potter wrote: I just noticed that my linux box dosen't seem to be keeping correct time. I tried running xntp to correct it, but it wouldn't work (does it work behind firewalls?) Does anyone know of an efficient way to make my linux box keep correct time? This is the script I use to keep my clock on time: /usr/sbin/netdate tick.usno.navy.mil tock.usno.navy.mil /sbin/clock -w Luck, Dwarf -- aka Dale Scheetz Phone: 1 (904) 877-0257 Flexible Software Fax: NONE Black Creek Critters e-mail: [EMAIL PROTECTED] If you don't see what you want, just ask --
Re: Not keeping correct time
Whenever I try to do a netdate to any site, I get a connection refused error, I done both tcp and udp. Could it be because I am behind a firewall? Thanks Shaya -- Shaya Potter [EMAIL PROTECTED] On Tue, 20 Aug 1996, Dale Scheetz wrote: On Mon, 19 Aug 1996, Shaya Potter wrote: I just noticed that my linux box dosen't seem to be keeping correct time. I tried running xntp to correct it, but it wouldn't work (does it work behind firewalls?) Does anyone know of an efficient way to make my linux box keep correct time? This is the script I use to keep my clock on time: /usr/sbin/netdate tick.usno.navy.mil tock.usno.navy.mil /sbin/clock -w Luck, Dwarf -- aka Dale Scheetz Phone: 1 (904) 877-0257 Flexible Software Fax: NONE Black Creek Critters e-mail: [EMAIL PROTECTED] If you don't see what you want, just ask --
