Categories: Linux administration, Networking
The course discusses network traffic filtering tools on Linux, including application layer filtering and specifically web content filtering using transparent proxies. Participants learn how to use filters for virus protection and how to establish safe Internet access policies for companies and organizations.
Duration
1 day
Agenda
- Firewalls on Linux
- The iptables command
- blocking or allowing access to services from internal and external networks
- rules, criteria, targets, user chains, policies
- testing the setup, nmap scanner
- Network topology
- Proxy servers, Squid
- configuration: squid.conf
- Access control
- creating ACLs
- Transparent proxy, forcing the user to go through our server
- Content analysis
- DansGuardian scanner, definitions, keyword filtering
- ClamAV anti-virus scanner
- Configuring user workstations
- Deploying a company-wide Internet access policy
Audience and prerequisites
This course targets at least intermediate-level Linux administrators.
Participants are expected to have good knowledge of general system administration and TCP/IP networks and protocols.
Certificates
Course participants receive completion certificates signed by ALX.
See also:
- Linux administrator
- Advanced Linux administrator
- LPI 101. An introduction to Linux administration
- LPI 102. Linux administration and networking
- Building a modern CI / CD process using the Jenkins server
- Selected Linux network services
- Selected Linux server-side technologies
- LPI 201. Linux architecture and low-level configuration
- File sharing and directory services
- LPI 202. Selected network services and network security
- LPIC-2 exam prep course
- LPI 300: LDAP, Samba, Integration with MS Windows and Mixed Environments
- LPI 303: Cryptography, Access Control, Services and Network Security
- LPI 304: Linux Virtualization and High Availability
- E-mail server - Exim, anti-spam solutions
- E-mail server - Postfix
- Bash shell programming
- Advanced shell programming, Bash, AWK
- Linux backups
- VPNs in theory and practice
- Bandwidth and Traffic Management (QoS) on Linux
- Server and network monitoring, SNMP, Nagios, Munin
- Apache HTTP server on Linux
- Bind domain name server on Linux
- LDAP directory services on Linux. Integrating authorization systems
- Samba server on Linux
- Advanced Samba configuration (PDC, LDAP, replication)
- Linux virtualization
- Wireless networks and their security
- Digital signature and encryption with OpenSSL and GnuPG
- High availability: Linux Virtual Server and supporting technologies (HA1)
- NFS: Network File System on Linux
- Safe Internet in a computer lab
- Security components in Linux
- Linux - application and kernel debugging
- Linux - exploiting applications and operating system. Low level attacks.
- Linux - application security testing, searching for possible exploits. High-level attacks
- MySQL administration
