dhcp

kea dhcp

kea dhcp v1.5.0 install battle on ubuntu18.04

sudo apt update
sudo apt upgrade -y

## Installing with Postgres
## If you want to compile Kea with PostgreSQL, install the following packages in addition to the ones above:
## memo: ucan select cassandra instead of postgres
sudo apt -y install postgresql-server-dev-all libpq-dev

# Run configure and add --with-pgsql

## Script 1
# install the build environment
sudo apt -y install automake libtool pkg-config build-essential ccache
# install the dependencies
sudo apt -y install libboost-dev libboost-system-dev liblog4cplus-dev libssl-dev

## Script 2
wget https://ftp.isc.org/isc/kea/1.5.0/kea-1.5.0.tar.gz
tar xvfz kea-1.5.0.tar.gz
cd kea-1.5.0

export PKG_CONFIG_PATH=/usr/local/lib64/pkgconfig
# export CC="ccache gcc" CXX="ccache g++"
declare -x PATH="/usr/lib64/ccache:$PATH"
autoreconf --install
# when u use pgsql, plz add --with-pgsql options to configure cmd
# ./configure --with-pgsql=<path_to_pgsql_conf>
# mariadbなら
./configure --with-mysql=/usr/bin/mariadb_config --with-boost-include=/usr/include/boost
make -j4
sudo make install
echo "/usr/local/lib/hooks" > /etc/ld.so.conf.d/kea.conf
ldconfig
  • keactrl コマンドで制御．
jp7fkf@dhcp:~$ keactrl status
DHCPv4 server: inactive
DHCPv6 server: inactive
DHCP DDNS: inactive
Control Agent: inactive
Kea DHCPv4 configuration file: /usr/local/etc/kea/kea-dhcp4.conf
Kea DHCPv6 configuration file: /usr/local/etc/kea/kea-dhcp6.conf
Kea DHCP DDNS configuration file: /usr/local/etc/kea/kea-dhcp-ddns.conf
Kea Control Agent configuration file: /usr/local/etc/kea/kea-ctrl-agent.conf
keactrl configuration file: /usr/local/etc/kea/keactrl.conf
  • 2019/07現在，ubuntu18.04(bionic)では1.1.0のパッケージがある．
jp7fkf@lab1:~$ sudo apt list -a | grep kea
[sudo] password for jp7fkf:

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

golang-github-bgentry-speakeasy-dev/bionic 0.1.0-1 all
kea-admin/bionic 1.1.0-1build2 amd64
kea-common/bionic 1.1.0-1build2 amd64
kea-dev/bionic 1.1.0-1build2 amd64
kea-dhcp-ddns-server/bionic 1.1.0-1build2 amd64
kea-dhcp4-server/bionic 1.1.0-1build2 amd64
kea-dhcp6-server/bionic 1.1.0-1build2 amd64
kea-doc/bionic 1.1.0-1build2 all

kea-ctrl-agent REST API Example

curl -sS -X POST -H "Content-Type: application/json" -d '{ "command": "ha-heartbeat", "service": [ "dhcp4" ] }' http://localhost:8080/ | jq
curl -sS -X POST -H "Content-Type: application/json" -d '{ "command": "lease4-get-all", "service": [ "dhcp4" ] }' http://localhost:8080/ | jq
curl -X POST -H "Content-Type: application/json" -d '{ "command": "lease4-get-all","arguments": {"subnets": [ 6 ]} ,"service": [ "dhcp4" ] }' http://localhost:8080/ | jq '.[].-sS arguments.leases[] | select (.ip-address==10.0.0.100)'
curl -sS -X POST -H "Content-Type: application/json" -d '{ "command": "config-get"}' http://localhost:8080/ | jq
curl -sS -X POST -H "Content-Type: application/json" -d '{ "command": "config-get", "service": [ "dhcp4" ] }' http://localhost:8080/ | jq
curl -sS -X POST -H "Content-Type: application/json" -d '{ "command": "lease4-del", "arguments": {"ip-address": "192.0.2.202"},  "service": [ "dhcp4" ] }' http://localhost:8080/ | jq

memo

jp7fkf@lab1:~$ whereis boost
boost: /usr/include/boost
## boost headerはここらしいということがわかる．

mysql -uroot -p -e "show variables like "chara%";"

$ mysql -u root -p
mysql>
mysql> CREATE DATABASE database-name;
mysql> CREATE USER 'user-name'@'localhost' IDENTIFIED BY 'password';
mysql> GRANT ALL ON database-name.* TO 'user-name'@'localhost';
mysql> CONNECT database-name;
mysql> SOURCE path-to-kea/share/kea/scripts/mysql/dhcpdb_create.mysql
$ kea-admin lease-init mysql -u database-user -p database-password -n database-name

kea dhcp keynote

  • https://www.isc.org/docs/getting-started-with-Kea-withQA.ppt.pdf

kea performance optimization

Load-Balancing

  • KeaもMicrosoft ServerのLoad-Balancingも，act-actで動作させる場合はRFC3074に基づく場合が多いようだ．