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A P P E N D I X I
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T e m p u s L X G P S U s e r M a n u a l
S O F T W A R E R E L E A S E N O T E S
2.4.31-IPV6 kernel upgrade procedure, and your systems will continue to behave as before. Custom-
ers buying new products may choose to have the IPv6-capable kernel installed at the factory. The
default will be the previous Linux 2.4.26 IPv4-only kernel.
Performing the Upgrade
Performing the 2.60 RFS upgrade is identical to the current procedure (see your User Manual, Ap-
pendix B, Performing the Linux/NTP Upgrade), and must be performed first if you are also planning
to upgrade your kernel. The IPv6 Linux 2.4.31 kernel upgrade procedure is new, and a new utility,
upgradekernel
has been added to the 2.60 RFS to facilitate and failsafe this procedure. First you
need to upload the new compressed kernel image file to a temporary location on the file system, us-
ing scp. (Alternatively, you could
ftp
from your timeserver to an ftp server on your network and
download the file). Then the kernel upgrade utility is executed with a single argument passed on the
command line: the path to the previously uploaded kernel image file. Like this, for example:
upgradekernel /tmp/newkernelimage
The kernel upgrade utility verifies the integrity of the file, reads the kernel version information, pres-
ents it to you and asks you to verify before replacing the old kernel image. If you verify, it will then
erase the old image and write the new one in its place. The erase and write operation takes about 10
seconds.
A power failure during this time would render the unit unbootable, so it is highly advis-
able to plug the unit into a UPS while performing the upgrade.
Enabling New IPv6
Capabilities
The presence of an IPv6 capable kernel will automatically enable most of the new IPv6 capabilities.
By default, autoconfiguration of the ethernet interface via IPv6 Router Advertisements is enabled. To
disable acceptance of Router Advertisements, or to configure a static IPv6 address and default IPv6
gateway, you must either run the interactive
netconfig
script or, if your unit is so equipped, use the
front-panel keypad and display. Either method will allow you to configure your ethernet interface
for both IPv4 and IPv6 operation. Using the
netconfig
script has the advantage that you can also
configure the hostname and domainname for the unit, as well as any nameservers you may want it to
have access to.
OpenSSH
Starting with the 2.60 RFS,
sshd
is no longer started by the superserver daemon,
inetd
. If you have
a previously reconfigured
/boot/etc/inetd.conf
, the
/etc/rc.d/rc.inet2
startup script will detect it and
remove the line that allows
sshd
to be started by
inetd
. By default,
sshd
is factory configured to
listen on both IPv4 and IPv6 addresses. It may be forced to listen on either IPv4 only, or IPv6 only
by editing the
/etc/rc.d/rc.inet2
startup script, where
sshd
is started, and then copying it to /
boot/etc/
rc.d
.
Net-SNMP
By default,
snmpd
is factory configured to listen on both IPv4 and IPv6 addresses. This may be
changed by editing
/etc/rc.d/rc.local
and modifying the agent address argument passed to
snmpd
at
start-up, and then copying it to
/boot/etc/rc.d
.
Summary of Contents for Tempus LX GPS
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