pxe tftpd dhcpd advanced client identifier http
dhcpd --version ifconfig | grep inet
debian/ubuntu
ls -lF /usr/share/doc/isc-dhcp-server/examples/dhcpd.conf.example mv -i /etc/dhcp/dhcpd.conf /etc/dhcp/dhcpd.conf.dist # new file vi /etc/dhcp/dhcpd.conf
slackware
ls -lF /etc/dhcpd.conf.example mv -i /etc/dhcpd.conf /etc/dhcpd.conf.dist # new file vi /etc/dhcpd.conf
netbsd
cp -pi /usr/share/examples/dhcp/dhcpd.conf /etc/dhcpd.conf.dist grep -vE '^#|^$' /etc/dhcpd.conf.dist > /etc/dhcpd.conf vi /etc/dhcpd.conf
shared MWE
default-lease-time 600;
max-lease-time 7200;
ddns-update-style none;
log-facility local7;
subnet UNUSED-NETWORK netmask UNUNSED-NETMASK {
}
subnet 192.168.0.0 netmask 255.255.255.0 {
range 192.168.0.50 192.168.0.99;
}
option routers 192.168.0.1;
option domain-name-servers x.x.x.x, x.x.x.x;
#option domain-search "example.local", "example.net";
#option smtp-server x.x.x.x;
#option ntp-servers x.x.x.x;
next-server 192.168.0.x;
filename "pxelinux.0";
dhcpd -t -cf /etc/dhcp/dhcpd.conf #ls -lF /var/lib/dhcp/dhcpd.leases #touch /var/lib/dhcp/dhcpd.leases #ln -s ../usr.sbin.dhcpd /etc/apparmor.d/disable/usr.sbin.dhcpd #systemctl restart apparmor systemctl status isc-dhcp-server6 systemctl disable isc-dhcp-server6 systemctl stop isc-dhcp-server6 systemctl status isc-dhcp-server systemctl enable isc-dhcp-server systemctl restart isc-dhcp-server
check
dhcpd -t -cf /etc/dhcpd.conf
start
dhcpd -q eth0 # -q NIC1 NIC2
status
pgrep -a dhcpd
stop
pkill dhcpd
systemctl restart dhcpd
vi /etc/rc.conf dhcpd=yes dhcpd_flags="-q xennet1" /etc/rc.d/dhcpd start
tested on slackware
grep ^lease /var/state/dhcp/dhcpd.leases | sort -V sbopkg -i uthash git clone git://git.code.sf.net/p/dhcpd-pools/code dhcpd-pools cd dhcpd-pools/ ./bootstrap ./configure echo $MAKEFLAGS make make install
as cron job
crontab -e 0 12 * * * /usr/local/bin/dhcpd-pools --config=/etc/dhcpd.conf --leases=/var/state/dhcp/dhcpd.leases --color=never --format=text #--color=always
#server-name "DHCPserver"; #server-identifier 10.1.1.253; #max-lease-time 7200; #default-lease-time 120; #max-lease-time 120; #option subnet-mask 255.255.255.0; #option domain-name "example.local";
wireshark filter
!arp && !dns && !tcp && !icmp && !ntp
dhcpd: any way to check dhcp pool status? https://unix.stackexchange.com/questions/39431/dhcpd-any-way-to-check-dhcp-pool-status
Command to list assigned dhcp addresses https://unix.stackexchange.com/questions/91799/command-to-list-assigned-dhcp-addresses/247514#247514
How do I show active dhcp leases https://askubuntu.com/questions/219609/how-do-i-show-active-dhcp-leases
ISC dhcpd lease analysis and reporting http://dhcpd-pools.sourceforge.net/
How do you have dhcpd reload its configuration file? https://kb.isc.org/docs/aa-00335
ISC dhcpd lease analysis and reporting http://dhcpd-pools.sourceforge.net/
dhcp-options - Dynamic Host Configuration Protocol options https://netbsd.gw.com/cgi-bin/man-cgi?dhcp-options+5
Options https://wiki.syslinux.org/wiki/index.php?title=PXELINUX#Options
Dynamic Host Configuration Protocol (DHCP) https://help.ubuntu.com/community/isc-dhcp-server
32.8. Diskless Operation with PXE https://docs.freebsd.org/en/books/handbook/network-diskless.html
DHCP options https://wiki.syslinux.org/wiki/index.php?title=PXELINUX#DHCP_options
PXELINUX-Multi-Arch https://wiki.syslinux.org/wiki/index.php?title=PXELINUX-Multi-Arch
BIOS and UEFI Co-Existence https://wiki.fogproject.org/wiki/index.php/BIOS_and_UEFI_Co-Existence
[syslinux] RE: DHCP option 93 for UEFI https://www.syslinux.org/archives/2014-October/022683.html
Dynamic Host Configuration Protocol (DHCP) Options for the Intel Preboot eXecution Environment (PXE https://tools.ietf.org/html/rfc4578
DHCP boot options https://community.meraki.com/t5/Security-SD-WAN/DHCP-boot-options/td-p/44536
UEFI Mode PXE Booting Doesn’t Work https://superuser.com/questions/1182862/uefi-mode-pxe-booting-doesnt-work