I have a computers that has a fixed address :
I'd like to switch it to a dhcp address but before editing the file, I need to be sure it will be able to contact the dhcp server. Indeed, I can only remote control the computer (ssh) and have no physical access to it. If I edit the file, restart the networking and if the computer cannot get an dhcp ip address, I permanently loose control over it.
Is there a command that can test a dhcp connection without actually modifying the current parameters?
Hi. I have a kornshell script that runs on a daily basis as a cron job. Part of what the script does is copy the folder contents from another server to the current server (server where KSH script is running).
I have a scp command, as follows:
scp $REMOTE_HOST:$REMOTE_FILE_DIR/* $TMP_DIR
... (8 Replies)
Hi All:
I need a script that can be timed to run every half hour to an hour to run a traceroute through a VPN to test that a connection is still up from a Win XP system. Which would be the best, C++ or Perl and what are some good resources to look at.
(If anyone has a script to do this... (1 Reply)
How do you test the physical network connection of an interface in solaris. I know that if you have an active connection and the cable gets yanked, you can look in the messages file to check for link failure messages. But is there any better way to see if you have good layer 2 connectivity? (1 Reply)
Hi Everyone,
Good day.
Scenario:
2 unix servers -- A (SunOS) and B (AIX)
I have an ftp script to sftp 30 files from A to B which happen almost instantaneously i.e 30 sftp's happen at the same time.
Some of these sftp's fail with the following error:
ssh_exchange_identification: Connection... (1 Reply)
Hello
I'm facing the above problem while doing a performance run. I've a script which I'm launching from my windows desktop using mozilla. The script will invoke backend action on a Solaris host which in turn feeds the records to a driver located on a linux box(Cent OS).
What's happening is... (1 Reply)
I have a box that has to start dhcpd when a certain connection is down and stop the dhcpd when the connection is up again. I would appriciate any help making this script:
From server A:
ping server B
if connection is ok then do nothing
if connection is not ok then start dhcpd
until... (8 Replies)
Hi everyone,
I am hoping anyone of you could help me in this weird problem we have in 1 of our Solaris 10 servers. Lately, we have been having some ftp problems in this server. Though it can ping any server within the network, it seems that it can only ftp to a select few. For most servers, the... (4 Replies)
I have a script that does db query in postgres. I'm trying to put in some error checking in the script. I keep running into the password prompt problem where when invalid credentials/or database is put it, it would prompt me for a password which hangs the script. Is there a way that I can check for... (0 Replies)
Hi everybody,
I am running a program on a supercomputer via my personal computer through a ssh connection. My program take more than a day to run, so when I left work with my PC I stop the connection with the supercomputer and the program stop.
I am wondering if someone know how I can manage... (2 Replies)
Hi All ,
please view the set up below:
-------------------------------------------------------------------
| DHCP Server |-----------| ROUTER & |-----------| Clients |
| 192.168.99.1 | - -<eth1>| DHCP-RELAY|<eth2>-- | 192.168.88.X |
... (2 Replies)
Discussion started by: gdangoor
2 Replies
LEARN ABOUT SUNOS
dhcp
dhcp(5) Standards, Environments, and Macros dhcp(5)NAME
dhcp - Dynamic Host Configuration Protocol
DESCRIPTION
Dynamic Host Configuration Protocol (DHCP) enables host systems in a TCP/IP network to be configured automatically for the network as they
boot. DHCP uses a client/server mechanism: servers store configuration information for clients, and provide that information upon a
client's request. The information can include the client's IP address and information about network services available to the client.
This manual page provides a brief summary of the Solaris DHCP implementation.
Solaris DHCP Client
The Solaris DHCP client is implemented as background daemon, dhcpagent(1M). This daemon is started automatically during bootup if there
exists at least one dhcp.interface file in /etc. Only interfaces with a corresponding /etc/dhcp.interface file are automatically configured
during boot. Network parameters needed for system configuration during bootup are extracted from the information recieved by the daemon
through the use of the dhcpinfo(1) command. The daemon's default behavior can be altered by changing the tunables in the /etc/default/dhc-
pagent file. The daemon is controlled by the ifconfig(1M) utility. Check the status of the daemon using the netstat(1M) and ifconfig(1M)
commands.
Solaris DHCP Server
The Solaris DHCP server is implemented as a background daemon, in.dhcpd(1M). This daemon can deliver network configuration information to
either BOOTP or DHCP clients. The Solaris DHCP service can be managed using the dhcpmgr(1M) GUI or the command line utilities dhcpcon-
fig(1M), dhtadm(1M), and pntadm(1M).
DHCP Configuration Tables
The Solaris DHCP server stores client configuration information in the following two types of tables:
dhcptab tables Contain macros and options (also known as symbols), used to construct a package of configuration information to
send to each DHCP client. There exists only one dhcptab for the DHCP service. The dhcptab(4) can be viewed and mod-
ified using the dhtadm(1M) command or dhcpmgr(1M) graphical utility. See dhcptab(4) for more information about the
syntax of dhcptab records. See dhcp_inittab(4) for more information about the DHCP options and symbols.
DHCP network tables DHCP network tables, which contain mappings of client IDs to IP addresses and parameters associated with those
addresses. Network tables are named with the IP address of the network, and can be created, viewed, and modified
using the pntadm command or dhcpmgr graphical utility. See dhcp_network(4) for more information about network
tables.
SEE ALSO dhcpinfo(1), dhcpagent(1M), dhcpconfig(1M), dhcpmgr(1M), dhtadm(1M), ifconfig(1M), in.dhcpd(1M), netstat(1M), pntadm(1M), syslog(3C),
dhcp_network(4), dhcptab(4), dhcpsvc.conf(4), dhcp_inittab(4), dhcp_modules(5)
Solaris DHCP Service Developer's Guide
Alexander, S., and R. Droms. RFC 2132, DHCP Options and BOOTP Vendor Extensions. Silicon Graphics, Inc. Bucknell University. March 1997.
Droms, R. RFC 1534, Interoperation Between DHCP and BOOTP. Bucknell University. October 1993.
Droms, R. RFC 2131, Dynamic Host Configuration Protocol. Bucknell University. March 1997.
Wimer, W. RFC 1542, Clarifications and Extensions for the Bootstrap Protocol. Carnegie Mellon University. October 1993.
SunOS 5.10 13 Mar 2001 dhcp(5)