Date: Wed, 18 Aug 2004 13:33:02 -0700 From: Paredes =?UNKNOWN?Q?S=E1nchez_Mart=EDn_A=2E?= <mparedes@telmex.com> To: "BSD." <FreeBSD-Questions@FreeBSD.org> Subject: What is portmapper (I MUST have portmapper running to use pcnfsd) Message-ID: <E3F56D7842656F4484C5668BC4D7F29849D8CD@is~tmxmailhmo1.intranet.telmex.com>
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Hi :
I am trying to replace a sparcstation which has solaris 2.5, we use it
to boot some diskless pc's into MS-DOS 6.22 and mount a file system in
the disk C: of the pc with PC/TCP 4.1.
The boot process I had figured out, but the connection of the drive C:
to the file system is given me problems.
The problem I think is that I don't have running something called
portmapper.
Since I am not subscribed to the list, please send me a copy of your
answer.
Let me explain why I think that, I decide that I have to use tcpdump
to see what is happening.
The diskless is booting with the ip 10.115.44.50
# tcpdump -n ip host 10.115.44.50
tcpdump: listening on xl0
03:44:04.337343 10.115.44.50.603 > 10.115.44.245.111: udp 56
03:44:04.337379 10.115.44.245 > 10.115.44.50: icmp: 10.115.44.245 udp
port 111 unreachable
03:44:04.340453 10.115.44.50.604 > 10.115.44.245.111: udp 56
03:44:04.340465 10.115.44.245 > 10.115.44.50: icmp: 10.115.44.245 udp
port 111 unreachable
So, mi diskless is trying to connect to the port 111/udp, and my
services files says:
sunrpc 111/tcp rpcbind #SUN Remote Procedure Call
sunrpc 111/udp rpcbind #SUN Remote Procedure Call
And the inetd.conf does not have nothing called sunrpc or rpcbind,
but has the nexts lines:
******************************************************************
#
# RPC based services (you MUST have portmapper running to use these)
#
#rstatd/1-3 dgram rpc/udp wait root /usr/libexec/rpc.rstatd
rpc.rstatd
#rusersd/1-2 dgram rpc/udp wait root /usr/libexec/rpc.rusersd
rpc.rusersd
#walld/1 dgram rpc/udp wait root /usr/libexec/rpc.rwalld
rpc.rwalld
#pcnfsd/1-2 dgram rpc/udp wait root /usr/libexec/rpc.pcnfsd
rpc.pcnfsd
#rquotad/1 dgram rpc/udp wait root /usr/libexec/rpc.rquotad
rpc.rquotad
#sprayd/1 dgram rpc/udp wait root /usr/libexec/rpc.sprayd
rpc.sprayd
******************************************************************
What is the portmapper and how can I run it?, Do I have to uncomment the
pcnfsd line?.
I notice that the program rpc.pcnfsd is the only rpc program that is not
installed
# ll /usr/libexec/rpc.*
-r-xr-xr-x 1 root wheel 7068 May 25 14:28 /usr/libexec/rpc.rquotad
-r-xr-xr-x 1 root wheel 9380 May 25 14:28 /usr/libexec/rpc.rstatd
-r-xr-xr-x 1 root wheel 6808 May 25 14:28 /usr/libexec/rpc.rusersd
-r-xr-xr-x 1 root wheel 6176 May 25 14:28 /usr/libexec/rpc.rwalld
-r-xr-xr-x 1 root wheel 4628 May 25 14:28 /usr/libexec/rpc.sprayd
So, I instaled.
# cd /cdrom/packages/All
# pkg_add pcnfsd-93.02.16.tgz
# pkg_info|grep pcnfsd
pcnfsd-93.02.16 Sun PC NFS authentication and printing server
# pkg_info -L pcnfsd-93.02.16
Information for pcnfsd-93.02.16:
/usr/local/libexec/rpc.pcnfsd
/usr/local/man/man8/pcnfsd.8.gz
I notice that pcnfsd has installed in /usr/local/libexec/, which is
diferent
to /usr/libexec/, Do I need to modify inetd.conf?
When I check the man page for inetd.conf I found this about RPC-based
services
that I belive they are TCP-MUX services.
******************************************************************
To specify an ONC RPC-based service, the entry would contain these
fields:
service name/version
socket type
rpc/protocol
user[:group][/login-class]
server program
server program arguments
There are two types of services that inetd can start: standard and
TCP-
MUX. A standard service has a well-known port assigned to it; it
may be
a service that implements an official Internet standard or is a
BSD-specific service. As described in RFC 1078, TCPMUX services
are non-
standard services that do not have a well-known port assigned to
them.
They are invoked from inetd when a program connects to the
``tcpmux''
well-known port and specifies the service name. This feature is
useful
for adding locally-developed servers. TCPMUX requests are only
accepted
when the multiplexor service itself is enabled, above and beyond
and spe-
cific TCPMUX-based servers; see the discussion of internal services
below.
******************************************************************
TIA
maps
*************************************************************************=
*************************************************************************=
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