From your dhcpd.conf, use
to identify the IP range considered. From the
blocks, extract the iptables . . . FORWARD . . . ACCEPT rules, and collect (and print out) the /etc/ethers info.
The "relative complement" of the IP range then can be used to define the iptables . . . DROP rules.
I have intall a REdhat 9.0 as a server and Ive configure to act as a DHCP however Im having technical problems b/c the file /etc/dhcpd.conf does not exists. I went to the text edit and I created :
subnet 192.192.168.100.0 netmask 255.255.255.0 {
range 192.168.100.10 192.168.100.150;... (1 Reply)
Hi,
I need to get a script together to edit the dhcp service configuration file dhcpd.conf.
Mac addresses are defined in classes ex.
class "HOST1" { match if substring (hardware, 1,18)=00:11:11:FF:FF:FF;}
class "HOST2" ...
class "HOST3" ...
...
followed by allow or deny statements:... (4 Replies)
Hi,
I've setup DHCP Server on RH linux AS3 and everything works fine except static routes. They are not getting effected on client systems.
My dhcpd.conf:
+++++++++++
ddns-update-style interim;
ddns-updates off;
option domain-name-servers 192.168.116.122;
option domain-name... (3 Replies)
HI,
I want a help for Configuring snmpd.conf and snmptrapd.conf (i.e Configuring SNMP)
for receiving
TRAPS in my networks. I am using RHEL4.0 OS.
Please tell me How I can configure above two files in a proper way and at an
advanced level.
Especially I am getting... (2 Replies)
Hi all,
I am too new for this stuff and i am lost in perl tutorials. I need help to change dhcp entries in .conf file with a perl script.
The file entries are like below :
host bertha-clp-0 {
hardware ethernet AA:0A:A0:00:6c:40;
fixed-address 10.10.10.72;
option... (6 Replies)
Hi All,
Could you please help to resolve my following issues:
Problem Description:
Suppose my user name is "MI90".
i.e. $USER = MI90
when i run below command, i get all the processes running on the system containing name MQ.
ps -ef | grep MQ
But sometimes it lists... (8 Replies)
Hello all,
Newbie here.
I'm currently tasked with updating rsyslog.conf and auditd.conf on a large set of servers. I know the exact logging configurations that I want to enable. I have updated both files on on a server and hope to use the updated files as a template for the rest of the... (3 Replies)
Hi,
I've installed Solaris 11.3(live media) and configured DNS. Everytime I reboot the server, resolv.conf got deleted and it created a new nsswitch.conf.
I used below to configure both settings:
# svccfg -s dns/client
svc:/network/dns/client> setprop config/nameserver = (xx.xx.xx.aa... (1 Reply)
Hi Experts,
Our DHCP server currently answers the DHCP Discover requests from ServerX. In our dhcpd.conf file there are parameters defined for ServerX.
Now we introduced some additional Servers into the network and want them to get service from the same DHCP server.
Similar configuration... (13 Replies)
Discussion started by: ekorgur
13 Replies
LEARN ABOUT OPENSOLARIS
netmasks
netmasks(4) File Formats netmasks(4)NAME
netmasks - network mask database
SYNOPSIS
/etc/inet/netmasks
/etc/netmasks
DESCRIPTION
The netmasks file contains network masks used to implement IP subnetting. It supports both standard subnetting as specified in RFC-950 and
variable length subnetting as specified in RFC-1519. When using standard subnetting there should be a single line for each network that is
subnetted in this file with the network number, any number of SPACE or TAB characters, and the network mask to use on that network. Network
numbers and masks may be specified in the conventional IP `.' (dot) notation (like IP host addresses, but with zeroes for the host part).
For example,
128.32.0.0 255.255.255.0
can be used to specify that the Class B network 128.32.0.0 should have eight bits of subnet field and eight bits of host field, in addition
to the standard sixteen bits in the network field.
When using variable length subnetting, the format is identical. However, there should be a line for each subnet with the first field being
the subnet and the second field being the netmask that applies to that subnet. The users of the database, such as ifconfig(1M), perform a
lookup to find the longest possible matching mask. It is possible to combine the RFC-950 and RFC-1519 form of subnet masks in the net-
masks file. For example,
128.32.0.0 255.255.255.0
128.32.27.0 255.255.255.240
128.32.27.16 255.255.255.240
128.32.27.32 255.255.255.240
128.32.27.48 255.255.255.240
128.32.27.64 255.255.255.240
128.32.27.80 255.255.255.240
128.32.27.96 255.255.255.240
128.32.27.112 255.255.255.240
128.32.27.128 255.255.255.240
128.32.27.144 255.255.255.240
128.32.27.160 255.255.255.240
128.32.27.176 255.255.255.240
128.32.27.192 255.255.255.240
128.32.27.208 255.255.255.240
128.32.27.224 255.255.255.240
128.32.27.240 255.255.255.240
128.32.64.0 255.255.255.192
can be used to specify different netmasks in different parts of the 128.32.0.0 Class B network number. Addresses 128.32.27.0 through
128.32.27.255 have a subnet mask with 28 bits in the combined network and subnet fields (often referred to as the subnet field) and 4 bits
in the host field. Furthermore, addresses 128.32.64.0 through 128.32.64.63 have a 26 bits in the subnet field. Finally, all other
addresses in the range 128.32.0.0 through 128.32.255.255 have a 24 bit subnet field.
Invalid entries are ignored.
SEE ALSO ifconfig(1M), inet(7P)
Postel, Jon, and Mogul, Jeff, Internet Standard Subnetting Procedure, RFC 950, Network Information Center, SRI International, Menlo Park,
Calif., August 1985.
V. Fuller, T. Li, J. Yu, K. Varadhan, Classless Inter-Domain Routing (CIDR): an Address Assignment and Aggregation Strategy, RFC 1519,
Network Information Center, SRI International, Menlo Park, Calif., September 1993.
T. Pummill, B. Manning, Variable Length Subnet Table For IPv4, RFC 1878, Network Information Center, SRI International, Menlo Park, Calif.,
December 1995.
NOTES
/etc/inet/netmasks is the official SVr4 name of the netmasks file. The symbolic link /etc/netmasks exists for BSD compatibility.
SunOS 5.11 7 Jan 1997 netmasks(4)