Re: [gentoo-user] leap second

2005-12-24 Thread Jonathan A. Kollasch
On Sat, Dec 24, 2005 at 07:33:26PM -0500, Philip Webb wrote:
 There will be a leap second between 051231 235959  060101 00 .
 Does anyone know how the time servers used by NTP handle this ?
 Is it just left to the local machine to realise it's  1 sec  fast
  adjust over a few hours or does something else alert it to correct things ?
 If the former, it could create problems for those running experiments;
 if the latter, does anyone know how it is done ?
 The last leap second was 1998/9 , before NTP was widely used.

http://en.wikipedia.org/wiki/Unix_time
http://en.wikipedia.org/wiki/Talk:Unix_time

These _might_ help you understand this confusing subject.  For me
they just gave me a headache.  The best I can tell POSIX handling
of time-keeping is just broken.  In short, don't worry too much
about it.  If you really want to know what time it is use GPS time
(a sane TAI-based system), then convert that to UTC.

Jonathan Kollasch


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Re: [gentoo-user] ghosting(?) a drive

2005-11-11 Thread Jonathan A. Kollasch
On Fri, Nov 11, 2005 at 02:50:22PM -0800, maxim wexler wrote:
 intention of moving my entire gentoo OS over to it
 from a flaky 120G ATA drive(reiserfs). Hopefully, I
 can just boot up from the new drive as if nothing had
 changed.
 
 Can anybody recommend any tool(s) for the job?
 Gotchas? Does SATA prefer a certain fs?

If the new drive has a greater or equal number of blocks than the old you could 
boot a LiveCD then dd(1) the old device (something like dd if=/dev/hda 
of=/dev/sda IIRC) onto the new device. You then should be able to boot 
directly off of the new drive.

Or you could create new file systems on the new drive then cp -PRp or rsync the 
old data to the new drive. In the later case you'd need to reinstall GRUB or 
LILO.

Be sure to not erase the old drive until you're sure the data got copied 
correctly.

Jonathan Kollasch


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Re: [gentoo-user] IPv6, now what?

2005-10-24 Thread Jonathan A. Kollasch
On Sunday 23 October 2005 09:46 am, Zhang Weiwu wrote:
 Hello. I recently got an IPv6 address for my small server (or perhaps I
 recently got a lot of IPv6 address, I cannot tell) from my ISP.  This is
 what I did in attempt to activate this address (all following exactly
 what is written on the ISP's manual)

 server root # ip addr add 2001:41c8:1:53ae::2/64 dev eth0
 server root # ip route add 2000::/3 via 2001:41c8:1:53ae::1
 server root # ip -6 addr show eth0
 5: eth0: BROADCAST,MULTICAST,ALLMULTI,UP qlen 1000
 inet6 2001:41c8:1:53ae::2/64 scope global
 inet6 fe80::fcfd:50ff:fe44:5d98/64 scope link
 server root # ping6 2001:41c8:1:53ae::2
 PING 2001:41c8:1:53ae::2(2001:41c8:1:53ae::2) 56 data bytes
 64 bytes from 2001:41c8:1:53ae::2: icmp_seq=1 ttl=64 time=0.077 ms
 64 bytes from 2001:41c8:1:53ae::2: icmp_seq=2 ttl=64 time=0.069 ms
 server root # ping6 www.ipv6.org
 PING www.ipv6.org(igloo.stacken.kth.se) 56 data bytes

 --- www.ipv6.org ping statistics ---
 5 packets transmitted, 0 received, 100% packet loss, time 4024ms

 Now what? Is my ipv6 address working now? I don't see a clue on how to
 do testing.

Well it should be, but it's not. I can ping (your|their) router, but not your 
server. You might try a traceroute6 to see where the problem might be. If you 
still need help try #IPv6 on irc.freenode.net. Or if your ISP provides 
support for IPv6 talk to them.

~~~

 One question important to me but I never understood well. If I have a
 website only defined on IPv6 address, is this website accessible from
 major platforms (e.g. Win2k+/modern Linux, IE 6+/Firefox 1+) without any
 special configuration on the client side?

Windows (XP) has IPv6 disabled by default. Users would need to configure it. 
On Linux if an IPv6 router advertises itself configuration is often 
automatic. But once users have an IPv6 connection your site should be 
accessible (assuming you get your connection up).

Jonathan Kollasch
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gentoo-user@gentoo.org mailing list



Re: [gentoo-user] broadcom BCM4309 chipset and 2005.1 install

2005-09-27 Thread Jonathan A. Kollasch
On Tuesday 27 September 2005 07:40 am, W.Kenworthy wrote:
 I am just about to install gentoo on my wifes dell9200 with the broadcom
 BCM4309 chipset.  However, no wlan0 is created and the chipset is not
 detected.

Um, Broadcom + IEEE 802.11 + Free Unix = no support (unless you're running a 
Linux 2.4 kernel on the MIPS32-el architecture, and then it's a proprietary 
binary).

Jonathan Kollasch
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gentoo-user@gentoo.org mailing list



Re: [gentoo-user] sub-net 0.0.0.0

2005-08-26 Thread Jonathan A. Kollasch
On Friday 26 August 2005 06:20 pm, Joseph wrote:
 Is there a way to check what IP the device has on the network?
 I know the device MAC address and when I plug it IN, it obtains one of
 the IP via DHCP.   With
 arp -a IP
 arp -e
 I can only check the MAC address.   Is there a way to other way around.

 I know ethereal will capture the IP address, but I was wandering if
 there is any command line tool.

Ethereal's CLI counterpart is tcpdump, (you can use tcpdump to make capture 
files for Ethereal) you could also look in your dhcpd's lease file, or see if 
it responds to a ping to 224.0.0.1.

Jonathan Kollasch
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gentoo-user@gentoo.org mailing list



Re: [gentoo-user] VPN?

2005-08-26 Thread Jonathan A. Kollasch
On Friday 26 August 2005 10:12 pm, Michael W. Holdeman wrote:
 I want to be able to access a desktop machine, and most importantly the bsd
 file server with my laptop, again with a dynamic assigned ip from remote
 locations.

I suggest one of those trendy dynamic DNS services (or a _real_ ISP). 
Not 
sure how well VPNs can cope with a changing address (at your laptop or home) 
though (I don't think IPsec would like it).

Jonathan Kollasch
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