|
|
Sponsored Content
Operating Systems
Linux
Red Hat
Purpose of Static IP address through DHCP
Post 302534027 by Perderabo on Sunday 26th of June 2011 03:36:54 PM
06-26-2011
We have to build thousands of PC's where I work. They are all built with the same image and thus they all use DHCP. A very few of them need a static IP (or at least the owners think they do 
). We assign these static IP's but the PC's still use DHCP. We have almost 3,000 PC's but less than 100 of them have static IP addresses.
The usual genuine reason for assigning static IP's is security. My PC has a static IP address and that address is known by various highly secured servers. Thus an ssh from my PC will be accepted.
At home I use static IP addresses because I feel like it. But my roku box must use DHCP, it has no capabilty to enter an IP address directly. This is the only device I know that must use DHCP but I guess that others may exist.
). We assign these static IP's but the PC's still use DHCP. We have almost 3,000 PC's but less than 100 of them have static IP addresses.The usual genuine reason for assigning static IP's is security. My PC has a static IP address and that address is known by various highly secured servers. Thus an ssh from my PC will be accepted.
At home I use static IP addresses because I feel like it. But my roku box must use DHCP, it has no capabilty to enter an IP address directly. This is the only device I know that must use DHCP but I guess that others may exist.
|
|
10 More Discussions You Might Find Interesting
1. HP-UX
***Newbie alert***
What's the easiest way to accomplish this? An admin left our company and I have taken over his HP Workstation and moved it to a different location that is on a different IP segment.
I have performed a number of google searches but the steps I have followed haven't worked.
... (1 Reply)
Discussion started by: Steelysteel
1 Replies
2. IP Networking
I have a USB Wireless Adapter using the rum0 driver. All I want to do is set a perminent static IP for the onboard wired interface elxl0. I can plumb the wired interface up fine on the fly, but when I try to save the static IP over a reboot, I lose the IP address assigned to rum0 from my wireless... (1 Reply)
Discussion started by: ts97783
1 Replies
3. IP Networking
I am pretty new to this. My router was earlier configured to enable DHCP, thus my UNIX box is using the dhcp address, i.e. I have to do a ifconfig dhcp hme0 start. Since I am planning to use my NT as a web server, I needed to use the static IP address. How do I configure the unix box to use the... (5 Replies)
Discussion started by: lee30320
5 Replies
4. IP Networking
I am trying to write a set of scripts for my Ubuntu 810 Server to allow a user to change from DHCP to a user-supplied Static IP, Subnet, Gateway and DNS Servers.
So far I have the following, where $USERCHOICE is a user-entered value in each case:
ifconfig eth0 down && ifconfig eth0 $USERCHOICE... (1 Reply)
Discussion started by: cleanden
1 Replies
5. Red Hat
Hi,
I am using RHEL 5.1 and i would like to know,
how to find the whether my system is using DHCP or STATIC IP
with out looking at /etc/sysconfig/network-scripts/ifconfig-eth0 configuration file.
Regards,
Venkat (3 Replies)
Discussion started by: venkat55
3 Replies
6. UNIX for Dummies Questions & Answers
Hey guys ,
YEs this is probably silly for most but i am new to this forum and solaris . i am curious to know if the ip address we have for our solaris server is static or dhcp . how can i tell ? will ifconfig -a tell me this ? or other commands?
Thanks in advance (1 Reply)
Discussion started by: xdrivex
1 Replies
7. HP-UX
Hi,
I can find the IP details whether it is Static or dynamic in Linux machine from the location /etc/sysconfig/network-scripts/ifconfig-eth0 configuration file.
Can someone suggest a location to find the same in HP UX machines?
-Vivek (2 Replies)
Discussion started by: vkk
2 Replies
8. IP Networking
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
9. IP Networking
I'm trying to figure out what circumstances would cause an Open Solaris 11.2 host to switch itself from a static to a DHCP ip address upon reboot. This has only happened once but is a cause for some concern as this machine will be part of a web server pool.
Nothing has changed on the LAN that... (2 Replies)
Discussion started by: SmokeyJoe
2 Replies
10. Solaris
We have 2 solaris 10 t5240 servers with static IP addresses on nxge0 I/F which were rebooted a few days back with a known good config that has been in place for years (for /etc/hosts, /etc/hostname.nxge0, /etc/netmasks, etc)
They are not using dhcp.
About the same time today, both of their... (7 Replies)
Discussion started by: hdatontodo
7 Replies
LEARN ABOUT LINUX
dhcpmgr
dhcpmgr(1M) System Administration Commands dhcpmgr(1M) NAME
dhcpmgr - graphical interface for managing DHCP service SYNOPSIS
/usr/sadm/admin/bin/dhcpmgr DESCRIPTION
dhcpmgr is a graphical user interface which enables you to manage the Dynamic Host Configuration Protocol (DHCP) service on the local sys- tem. It performs the functions of the dhcpconfig, dhtadm, and pntadm command line utilities. You must be root to use dhcpmgr. The dhcpmgr Help, available from the Help menu, contains detailed information about using the tool. USAGE
You can perform the following tasks using dhcpmgr: Configure DHCP service Use dhcpmgr to configure the DHCP daemon as a DHCP server, and select the data store to use for storing network configuration tables.. Configure BOOTP relay service Use dhcpmgr to configure the DHCP daemon as a BOOTP relay. Manage DHCP or BOOTP relay service Use dhcpmgr to start, stop, enable, disable or unconfigure the DHCP service or BOOTP relay service, or change DHCP server parameters. Manage DHCP addresses Use dhcpmgr to add, modify, or delete IP addresses leased by the DHCP service. Manage DHCP macros Use dhcpmgr to add, modify or delete macros used to supply configuration parameters to DHCP clients. Manage DHCP options Use dhcpmgr to add, modify or delete options used to define parameters deliverable through DHCP. Convert to a new DHCP data store Use dhcpmgr to configure the DHCP server to use a different data store, and convert the DHCP data to the format used by the new data store. Move DHCP data to another server Use dhcpmgr to export data from one Solaris DHCP server and import data onto another Solaris DHCP server. EXIT STATUS
The following exit values are returned: 0 Successful completion. non-zero An error occurred. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWdhcm | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ SEE ALSO
dhcpconfig(1M), dhtadm(1M), pntadm(1M), in.dhcpd(1M), dhcpsvc.conf(4), dhcp_network(4), dhcptab(4), attributes(5), dhcp(5), dhcp_modules(5) Solaris DHCP Service Developer's Guide System Administration Guide: IP Services SunOS 5.10 13 Mar 2001 dhcpmgr(1M)