DHCLIENT.LEASES(5) BSD File Formats Manual DHCLIENT.LEASES(5)NAME
dhclient.leases -- DHCP client lease database
DESCRIPTION
The Internet Software Consortium DHCP client keeps a persistent database of leases that it has acquired that are still valid. The database
is a free-form ASCII file containing one valid declaration per lease. If more than one declaration appears for a given lease, the last one
in the file is used. The file is written as a log, so this is not an unusual occurrence.
The lease file is named dhclient.leases.IFNAME, where IFNAME represents the network interface the DHCP client acquired the lease on. For
example, if dhclient(8) is configured for the em0 network device, the lease file will be named dhclient.leases.em0.
The format of the lease declarations is described in dhclient.conf(5).
FILES
/var/db/dhclient.leases.IFNAME Current lease file.
SEE ALSO dhclient.conf(5), dhcp-options(5), dhcpd.conf(5), dhclient(8), dhcpd(8)
RFC 2132, RFC 2131.
AUTHORS
The dhclient(8) utility was written by Ted Lemon <mellon@vix.com> under a contract with Vixie Labs.
The current implementation was reworked by Henning Brauer <henning@openbsd.org>.
BSD January 1, 1997 BSD
Check Out this Related Man Page
dhclient.leases(5) File Formats Manual dhclient.leases(5)NAME
dhclient.leases - DHCP client lease database
DESCRIPTION
The Internet Systems Consortium DHCP client keeps a persistent database of leases that it has acquired that are still valid. The database
is a free-form ASCII file containing one valid declaration per lease. If more than one declaration appears for a given lease, the last
one in the file is used. The file is written as a log, so this is not an unusual occurrance.
The format of the lease declarations is described in dhclient.conf(5).
FILES
DBDIR/dhclient.leases
SEE ALSO dhclient(8), dhcp-options(5), dhclient.conf(5), dhcpd(8), dhcpd.conf(5), RFC2132, RFC2131.
AUTHOR dhclient(8) was written by Ted Lemon under a contract with Vixie Labs. Funding for this project was provided by Internet Systems Consor-
tium. Information about Internet Systems Consortium can be found at https://www.isc.org.
dhclient.leases(5)
Wow, bright colors.
Hi,
I lease a dedicated server and it's usually fine. However, lately it seems slow. The hosting company says all is well, my isp says all is well (and it appears so using this), and yet the fastest file transfer I can get is 40kbs or thereabouts.
I ran a trace from... (2 Replies)
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)
I want to include all the subnet files under /etc/dhcpd/ to /etc/dhcpd.conf
so here is my content of dhcpd.conf
...
include "/etc/dhcpd/*";
however, the check-syntax reports syntax error, as they do not recognize the wildcard *, and display that " file /etc/dhcpd/* could not be found.
... (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 guys,
I just wanted to know is there any way we can know that the linux has renew it's lease time..
My network has configuration that gives the same IP every time u renew the IP. So when it automatically checks or send the query to the dhcp server for the renewal of the IP ( when the... (3 Replies)
Hi All
dhcpd.conf has a range of IPs sa for example( 192.168.1.201 192.168.1.220)
So this is the range of IP addresses the server will issue to DHCP enabled PC clients booting up on the network
How do i know which IPs are being used or which IPs from the range are assigned to dhcp enabled... (11 Replies)
Hi *,
I need to delete duplicate lease entries in file according to MAC/IP.
I'm having tempfile which contains many lease info and need to have one entry for each IP(not more than that), if it contains more than one entry for same set, need to be deleted that entry...
EX:
lease... (4 Replies)
Hi,
am having a lease file which contains lots os lease info. In that i have to copy the whole block(shown below) by identifying the mac and change the IP according to the i/p.
I have used like
sed s/${ip_addr}/$ch_ip/g $temp_file | grep -B5 "${mac}" >> $persistent_file
sed... (2 Replies)
Hi,
I need a help that i want to get the IP which is located at the first line of lease block, using mac id i have to get that ip....In between IP and MAC, the number of lines may vary.....i tried using Grep before 5 line and using awk i took the IP...But the scenario am facing is that... (3 Replies)
Hi
Can anyone please tell me how to disable dhclient on redhat host.
I have set static IP to one of my redhat host but I don't know how it changes to some other IP after few hours.
here is the output from ifcfg-eth0 and rc.local
test-123 root # cat... (2 Replies)
Okay, I am trying to make a bash script to get a certain domains IP address (my home ip). My home is on a DHCP lease from my ISP, so I cannot always trust the IP address to remain constant.
This is what I have so far for it:
alias ip-home="ping -c 1 example.com | grep 'PING' | cut -d'(' -f2 |... (5 Replies)
Hi,
I got a strange issue here: We are using ISC DHCP v4 which is default in Open SuSE 11.4. These two options 'default-lease-time' and 'max-lease-time' are set in all subnets, with values between 43200 (12 hours) to 518400 (144 hours). See partial dhcpd.conf below please.
Now the lease... (5 Replies)
Hi
I know the basic about script and sleep processes.
However this is more tricky:
I would like to run
sh -x /sbin/dhclient-script and slow down the output of the script as a whole.
How would you do it?
I would like to delay output on the screen with 1 second for every line for the output... (3 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,
I'm far from an expert so bear with me on this. I'm writing a script to check for check for active DHCP leases on each subnet configured on a server, and clear and restart DHCP if the usage is above 90%. The possible scope is /16 - /24.
/usr/share/flint/scripts/leasecheck.pl is a perl... (2 Replies)