Docker Certified Associate – Preparation & methodology
Preparing for the Docker Certified Associate (DCA) exam is an achievable goal with the right plan, focused practice, and high-quality mock exams.
LPI
LPI LPIC-2 Exam 202
The LPIC-2 Exam 202 (now updated to 202-450) is the second required exam for achieving the LPIC-2 certification (Linux Engineer), which validates advanced skills in managing small to medium-sized mixed networks across Linux and Microsoft environments.
Prüfungscode
202-450
Dauer
90 min
Questions
60
Offizielle Voraussetzungen
- LPIC-1 certification or equivalent junior-level Linux administration experience
- At least 12 months of practical Linux system administration experience
- Comfortable with command-line tools, shell scripting, and text editors
- Familiarity with networking concepts such as TCP/IP, routing, DNS, and DHCP
- Understanding of filesystems, partitioning, RAID, and LVM
Gezielte Berufe
Linux System Administrator Senior Linux Administrator Systems Engineer DevOps Engineer IT Infrastructure EngineerDomain-Blaupause
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Configure BIND 9 as both an authoritative and recursive/caching DNS server; manage zone files (forward/reverse), reload configurations, and secure the server (running as non-root in a chroot jail, TSIG, basic DNSSEC awareness).
Install and configure web and proxy services (Apache, Squid, Nginx)
Samba: standalone or Active Directory-integrated CIFS/SMB shares, printer shares, client mounting, user mapping, troubleshooting
NFS: exporting filesystems, access controls, client mounts, securing NFS environments.
DHCP: server configuration, static/bootp hosts, relay agents, basic DHCPv6/RA awareness
PAM: authentication setup (pam_unix, pam_sss, SSSD)
LDAP client: querying/updating LDAP directories
OpenLDAP server: basic directory setup, LDIF, access controls.
Mail servers: Postfix configuration (aliases, quotas, virtual domains, internal relays, TLS basics)
Delivery filtering: Sieve scripting for mail sorting/filtering
Mailbox access: POP/IMAP setup (Dovecot), TLS for mail retrieval.
Domäne 5
E-Mail Services
Mail servers: Postfix configuration (aliases, quotas, virtual domains, internal relays, TLS basics)
Delivery filtering: Sieve scripting for mail sorting/filtering
Mailbox access: POP/IMAP setup (Dovecot), TLS for mail retrieval.
Domäne 6
System Security
Router/NAT: IP forwarding, masquerading, port redirection, basic iptables/ip6tables rules
FTP servers: anonymous and authenticated vsftpd/Pure-FTPd setup and hardening
SSH: securing sshd (keys, root login, port forwarding)
Security tasks: intrusion detection (Snort, OpenVAS), patch management, alert sources
OpenVPN: site-to-site and point-to-point VPN configuration.
Lerntipp
Do hands-on labs building and configuring systems, review official objectives, study man pages, take timed practice exams, and analyze mistakes.
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