Server Dienste Minimal

Minimales Linux-Server-Schulungsnetz

Netzplan

• 10.20.10.0/24 internes Netz
• 172.22.0.0/16 externes Netz (Internet)
• Server: debian-srv (10.20.10.11)
• Server: rocky-srv (10.20.10.12)
• Client: debian-client (10.20.10.51)

Apache2 mit PHP (Debian)

• apt install apache2 php libapache2-mod-php -y
• echo "<?php phpinfo(); ?>" > /var/www/html/info.php
• systemctl enable --now apache2
• http://10.20.10.11/info.php prüfen

Nginx mit PHP (Rocky)

• yum install nginx php-fpm -y
• systemctl enable --now nginx php-fpm
• echo "<?php phpinfo(); ?>" > /usr/share/nginx/html/info.php
• vi /etc/nginx/conf.d/default.conf

server {
  listen 80;
  root /usr/share/nginx/html;
  index index.php index.html;
  location ~ \.php$ {
    fastcgi_pass 127.0.0.1:9000;
    include fastcgi.conf;
  }
}

• systemctl reload nginx
• http://10.20.10.12/info.php prüfen

Exim (Mailserver minimal)

• apt install exim4 -y
• dpkg-reconfigure exim4-config

Internet-Site

System mail name: lab.local

Smarthost leer

Mail an root: root

• echo "Testmail" | mail -s "Exim läuft" root@lab.local

NFS-Server

• apt install nfs-kernel-server -y
• mkdir -p /srv/nfs/share
• chown nobody:nogroup /srv/nfs/share
• echo "/srv/nfs/share 10.20.10.0/24(ro,sync,no_subtree_check)" >> /etc/exports
• exportfs -ra
• systemctl enable --now nfs-server

Samba-Server

• apt install samba -y
• mkdir -p /srv/samba/share
• chmod 777 /srv/samba/share
• echo "[share]" >> /etc/samba/smb.conf
• echo " path = /srv/samba/share" >> /etc/samba/smb.conf
• echo " read only = no" >> /etc/samba/smb.conf
• echo " guest ok = yes" >> /etc/samba/smb.conf
• systemctl enable --now smbd nmbd

DHCP-Server

• apt install isc-dhcp-server -y
• vi /etc/dhcp/dhcpd.conf

subnet 10.20.10.0 netmask 255.255.255.0 {
  range 10.20.10.100 10.20.10.150;
  option routers 10.20.10.1;
  option domain-name-servers 10.20.10.11;
  option domain-name "lab.local";
}

• systemctl enable --now isc-dhcp-server

DNS-Server (Bind9)

• apt install bind9 -y
• vi /etc/bind/named.conf.local

zone "lab.local" {
  type master;
  file "/etc/bind/db.lab.local";
};
zone "10.20.10.in-addr.arpa" {
  type master;
  file "/etc/bind/db.10.20.10";
};

• cp /etc/bind/db.local /etc/bind/db.lab.local
• vi /etc/bind/db.lab.local

$TTL    604800
@       IN      SOA     debian-srv.lab.local. root.lab.local. (
                        2     ; Serial
                        604800 ; Refresh
                        86400  ; Retry
                        2419200 ; Expire
                        604800 ) ; Negative Cache TTL
@       IN      NS      debian-srv.lab.local.
debian-srv      IN      A       10.20.10.11
rocky-srv       IN      A       10.20.10.12
debian-client   IN      A       10.20.10.51

• cp /etc/bind/db.127 /etc/bind/db.10.20.10
• vi /etc/bind/db.10.20.10

$TTL 604800
@ IN SOA debian-srv.lab.local. root.lab.local. (
        2 604800 86400 2419200 604800 )
@ IN NS debian-srv.lab.local.
11 IN PTR debian-srv.lab.local.
12 IN PTR rocky-srv.lab.local.
51 IN PTR debian-client.lab.local.

• systemctl enable --now bind9
• dig debian-srv.lab.local @10.20.10.11 prüfen

SFTP-Server (Rocky)

• yum install openssh-server -y
• systemctl enable --now sshd
• adduser sftpuser
• passwd sftpuser
• mkdir -p /sftp/files
• chown root:root /sftp
• chown sftpuser:sftpuser /sftp/files
• vi /etc/ssh/sshd_config

Subsystem sftp internal-sftp
Match User sftpuser
  ChrootDirectory /sftp
  ForceCommand internal-sftp

• systemctl reload sshd
• sftp sftpuser@10.20.10.12

cd files

put test.txt

Test vom Client

• apt install nfs-common smbclient dnsutils isc-dhcp-client -y
• mount -t nfs 10.20.10.11:/srv/nfs/share /mnt
• smbclient //10.20.10.11/share -U guest
• dig rocky-srv.lab.local @10.20.10.11
• ping 10.20.10.11