1
2
3
4
5
6
7

sudo vi /etc/cloud/cloud.cfg.d/90_dpkg.cfg
sudo apt purge cloud-init snapd nano
sudo rm -rf /etc/cloud/
sudo rm -rf /var/lib/cloud/
sudo apt autoremove
echo "$USER ALL=(ALL:ALL) NOPASSWD: ALL" |sudo tee -a /etc/sudoers
echo "set completion-ignore-case on" |sudo tee -a /etc/inputrc

禁用systemd-resolved

systemd-resolved不好用，经常将复杂网络配置搞坏，可以考虑禁用掉：

1
2
3
4

systemctl disable systemd-resolved
systemctl stop systemd-resolved
rm /etc/resolve.conf  # 删除符号链接
echo "nameserver 114.114.114.114" > /etc/resolve.conf

网卡

Ubuntu Server 启动时经常卡在:a start job is running for the raise network上。解决方法如下： 将

1
2

auto eno1
iface eno1 inet dhcp

改为:

1
2

allow-hotplug eno1
iface eno1 inet dhcp

dhcpd

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

sudo apt install isc-dhcp-server

/etc/default/isc-dhcp-server 
INTERFACES="eth0"

/etc/dhcp/dhcpd.conf
option domain-name "tecmint.lan";
option domain-name-servers ns1.tecmint.lan, ns2.tecmint.lan;
default-lease-time 3600; 
max-lease-time 7200;
authoritative;

subnet 192.168.10.0 netmask 255.255.255.0 {
        option routers                  192.168.10.1;
        option subnet-mask              255.255.255.0;
        option domain-search            "tecmint.lan";
        option domain-name-servers      192.168.10.1;
        range   192.168.10.10   192.168.10.100;
        range   192.168.10.110   192.168.10.200;
}

sudo systemctl start isc-dhcp-server.service
sudo systemctl enable isc-dhcp-server.service