Symbols
- /etc/exports
-
- NFS, Configuring NFS
- /etc/hosts
-
- name resolution, The host file
- /etc/hosts.allow
-
- configuration, Configuration of tcp-wrappers
- /etc/hosts.deny
-
- configuration, Configuration of tcp-wrappers
- /etc/inetd.conf
-
- security, netstat
- /etc/init.d nfs-user-server restart
-
- NFS, Configuring NFS
- /etc/init.d/networking restart
-
- network troubleshooting (Debian), Summary
- /etc/nsswitch.conf
-
- name resolution, So where to look up the host name?
- NIS, Configuration of NIS clients
- /etc/rc#.d
-
- service level security, Service level security
- /etc/rc.d/init/network restart
-
- network troubleshooting (RedHat), Summary
- /etc/rc.d/network restart
-
- network troubleshooting (SuSE), Summary
- /etc/rc.init/
-
- service level security, Service level security
- /etc/ssh/ssh_host_rsa/
-
- ssh, Sample Session for Verifying a fingerprint
- /etc/sysconfig/network-scripts/
-
- RedHat, The loopback interface
- /etc/sysconfig/network-scripts/ifcfg-eth0
-
- RedHat, The loopback interface
- /etc/sysconfig/network-scripts/ifcfg-eth1
-
- RedHat, The loopback interface
- /etc/sysconfig/network/
-
- SuSE, The loopback interface
- /etc/sysconfig/network/ifcfg-eth0
-
- SuSE, The loopback interface
- /etc/sysconfig/network/ifcfg-eth1
-
- SuSE, The loopback interface
A
- Address Resolution Protocol
-
- ARP, ARP and the ARP table
- Application layer
-
- OSI model, The OSI Model
- TCP/IP model, The Application Layer
- ARP
-
- MAC, IP addresses, Transferring information across the Internet
- arp
-
- network troubleshooting, Further Troubleshooting with ping and arp
- arp -a, What is ARP?
-
- network troubleshooting, Verifying Your Routing Table
- ARP table, ARP and the ARP table
-
- TCP/IP stack, Transferring information across the Internet
- arp table, Creating and using the ARP table
- arping, arping
- Asynchronous Transfer Mode
-
- networking types, How do we connect the machines Physically
- ATM, Others: Wi-Fi and ATM
B
- Boot Protocol
-
- BOOTP, Boot Protocol
- BOOTP relay
-
- man sysctrl 5 (sysctrl.conf), Why DHCP is restricted to a broadcast domain
- bridges, Hubs, switches and bridges
- broadcast, DHCP offers the following benefits:
- broadcast domain, Broadcast versus collision domains
- Broadcast packets
-
- CSMA/CD, What is a BROADCAST?
- Broadcast services
-
- ARP, Services that are UNICAST (ssh/telnet/ftp) and broadcast (DHCP/BOOTP/ARP)
- BOOTP, Services that are UNICAST (ssh/telnet/ftp) and broadcast (DHCP/BOOTP/ARP)
- DHCP, Services that are UNICAST (ssh/telnet/ftp) and broadcast (DHCP/BOOTP/ARP)
- Broadcasts, Broadcasts, Unicasts and Multicasts
- bytes
-
- definition, Packets, frames, bytes, octets and datagrams
C
- Carrier Sense Multiple Access Collision Detection
-
- CSMA/CD, Understanding CSMA/CD
- chat script
-
- Dial Up, Checklist
- CIDR
-
- IP address/subnetmask combination, CIDR
- Class A
-
- IP addresses, IP addresses
- Class A addresses, The network interfaces that you'll see if you run ifconfig -a
- Class B
-
- IP addresses, IP addresses
- Class B addresses, The network interfaces that you'll see if you run ifconfig -a
- Class C
-
- IP addresses, IP addresses
- Class C addresses, The network interfaces that you'll see if you run ifconfig -a
- Client/Server technology, Client/Server Technology
- collision domain, Broadcast versus collision domains
- Cyclic Redundancy Check
-
- TCP/IP model, Overview of how the TCP/IP Model Works
D
- datagrams
-
- definition, Packets, frames, bytes, octets and datagrams
- default gateway, A default gateway
-
- routing, The loopback interface
- dhclient
-
- DHCP request, Explain "dhclient"
- DHCP
-
- broadcast domain, Why DHCP is restricted to a broadcast domain
- Dial Up lines
-
- analogue, Dial-up lines (analogue and digital (ISDN))
- Digital, ISDN , Dial-up lines (analogue and digital (ISDN))
- dig
-
- troubleshooting DNS client configuration, Using DIG, Why use DIG? How to use DIG? Examples
- DIGINET
-
- Digital Lines, WAN, Digital lines (T1, E1, and ADSL Etc.)
- Digital Signature
-
- GPG, Digital signatures
- DNS client configuration
-
- troubleshooting, Troubleshooting your DNS client configuration
- DNS Name Server, DNS Name Server
- DNS records, Types of records in a DNS
- DNS server
-
- round robin, Describe round robin DNS servers
- Domain Name System
-
- DNS, Domain Naming System
- domainname
-
- NIS, Configuration of NIS clients
- Dynamic Host Configuration Protocol
-
- DHCP, Dynamic Host Configuration Protocol
- the protocol, Understanding the Dynamic Host Configuration Protocol (DHCP)
- dynamic IP addressing
-
- DHCP, BOOTP, IP Address Allocation
F
- Fiber Data Distributed Interface
-
- networking types, How do we connect the machines Physically
- finger
-
- daemon/client pair, Configuration of tcp-wrappers
- tcp-wrappers, Configuration of tcp-wrappers
- fingerprint
-
- ssh, Sample Session for Verifying a fingerprint
- forward name resolution, Forward versus reverse name resolution
- frames
-
- definition, Packets, frames, bytes, octets and datagrams
- FTP
-
- client/server, Fourth example:
- remote access, FTP
- TCP/IP model, Overview of how the TCP/IP Model Works
I
- ICMP
-
- ping, TCP/IP stack, Lets look at ping from the TCP/IP Stack point of view
- ICMP sequence
-
- ping, troubleshooting, Sequence Number
- ifconfig, The ifconfig command
- ifconfig -a, The network interfaces that you'll see if you run ifconfig -a
- IMAP
-
- email, Category 3: Your email resides at an ISP.
- in.fingerd
-
- tcp-wrappers, Configuration of tcp-wrappers
- inet services
-
- security, netstat
- inetd
-
- service level security, Inetd:
- Service level security (Debian), Service level security
- service restrictions, xinetd and inetd service restrictions
- Internet Connection Sharing
-
- router, Explaining routers
- IP address
-
- configuring network address, How to put an IP address onto your network card
- IP addresses, IP addresses
M
- MAC address
-
- arp, ARP and the ARP table
- MAC layer
-
- TCP protocol layers, MAC Layer
- TCP/IP model, The MAC Layer
- mail transport agent
-
- MTA, MTA and MUA
- mail user agent
-
- MUA, MTA and MUA
- Master/Slave NIS
-
- redundancy, Master/Slave NIS and redundancy
- Maximum Transmission Unit
-
- CSMA/CD, Maximum transmission unit (MTU)
- message digest
-
- encrypting, Digital signatures
- minicom
-
- Dial Up, Checklist
- Multicasts, Broadcasts, Unicasts and Multicasts
N
- name resolution process, Describe the name resolution process
- NAT
-
- problems with IPv4, Basic explanation - relating NAT to problems with IPv4
- security, Basic explanation - relating NAT to problems with IPv4
- netstat
-
- routing, Routing and using the "netstat" command
- security, netstat
- netstat -l
-
- security, netstat, xinetd and inetd service restrictions
- service level security, Service level security
- netstat -r
-
- network troubleshooting, Verifying Your Routing Table
- netstat -rn
-
- routing table, Show how to look at the routing table in Linux
- Network File System
-
- definition, What is NFS?
- Network Layer
-
- TCP/IP model, The Network Layer
- Network portion
-
- IP addresses, Network and Host Portion
- network security, Network, System and Service Security
- Network Terminating Unit
-
- Digital Lines, WAN, Digital lines (T1, E1, and ADSL Etc.)
- NFS
-
- configuring, Configuring NFS
- NFS server, How can we use NFS?
- NIS, Network Information Service (NIS)
-
- DNS Name Server, NIS
- nmap
-
- xinetd, security, Xinetd:
- nmblookup
-
- SAMBA, Nmblookup
- nslookup
-
- troubleshooting DNS client configuration, Using NSLOOKUP
P
- packets
-
- definition, Packets, frames, bytes, octets and datagrams
- Physical Layer
-
- TCP/IP model, The Physical Layer
- physical network, Logical and physical networks
- physical network layout
-
- network structure, Logical versus physical network layout
- ping
-
- flooding, Flooding with PING
- network troubleshooting, Further Troubleshooting with ping and arp, PING
- TCP/IP stack, Lets look at ping from the TCP/IP Stack point of view
- testing connectivity, Test the network with Ping
- plumbing a device, Plumbing a device
- plumbing a network card
-
- IP addressing, Plumbing a network card
- POP3
-
- email, Category 3: Your email resides at an ISP.
- ports, listening
-
- Security, Checking on listening ports.
- Presentation layer
-
- OSI model, The OSI Model
- Private Keys
-
- GPG, Public and Private Keys
- Public Keys
-
- GPG, Public and Private Keys
- pump
-
- DHCP request, Explain "dhclient"
- put
-
- FTP, FTP
S
- SAMBA, SAMBA
- service security, Network, System and Service Security
- Session layer
-
- OSI model, The OSI Model
- SFTP
-
- Secure FTP Session, SSH
- SIGHUP
-
- xinetd, security, Xinetd:
- smbclient
-
- ftp-like service, Using smbclient
- SAMBA, Using smbclient
- smbmount
-
- SAMBA, Smbmount/smbumount
- smbtar
-
- SAMBA, Smbtar
- smbumount
-
- SAMBA, Smbmount/smbumount
- SMTP
-
- email, SMTP
- SMTP server
-
- email, Open Relays and SPAM
- SSH
-
- remote access, SSH
- ssh agent, Sample Session Using ssh agent
- ssh-keygeb -t rsa -b 1024
-
- generating key for ssh, Sample Session for Generating a key
- static IP addressing, IP Address Allocation
- sub-netting
-
- IP addresses, Why use sub-netting
- subnetmask
-
- configuring network address, How to put an IP address onto your network card
- Summary
-
- ping, troubleshooting, Summary
- switches, Hubs, switches and bridges
-
- building bridging tables, Switches and building bridging tables
- Symmetric Keys
-
- GPG, Symmetric Keys
- system security, Network, System and Service Security
T
- TCP
-
- connection orientated protocol, The Transport Layer
- TCP protocol layers, The Transport Layer
- TCP/IP model, Introducing the TCP/IP Model
- Transmission Control Protocol, The Transport Layer
- transport layer protocol, The Transport Layer
- TCP wrappers
-
- security, TCP Wrappers
- tcp-wrappers
-
- configuration, Configuration of tcp-wrappers
- troubleshooting, Troubleshooting TCP-wrappers
- tcp-wrappers, configuration
-
- daemon/client pair, Configuration of tcp-wrappers
- TCP/IP, Network Administration Fundamentals
- TCP/IP stack, Summary - TCP/IP Stack
- tcpchk -v
-
- troubleshooting tcp-wrappers, Troubleshooting TCP-wrappers
- telnet
-
- remote access, Inherent problems with telnet
- TIME
-
- ping, troubleshooting, Time
- Token Ring, Overview of how the TCP/IP Model Works
-
- network technology, Token Ring
- networking types, How do we connect the machines Physically
- Transport layer
-
- OSI model, The OSI Model
- TCP protocol layers, The Transport Layer
- TCP/IP model, The Transport Layer
- TTL
-
- ping, troubleshooting, TTL
U
- UDP
-
- connectionless protocol, The Transport Layer, The Transport Layer
- TCP protocol layers, The Transport Layer
- TCP/IP model, Introducing the TCP/IP Model
- transport layer protocol, The Transport Layer
- User Datagram Protocol, The Transport Layer
- Unicast services
-
- ftp, Services that are UNICAST (ssh/telnet/ftp) and broadcast (DHCP/BOOTP/ARP)
- ssh, Services that are UNICAST (ssh/telnet/ftp) and broadcast (DHCP/BOOTP/ARP)
- telnet, Services that are UNICAST (ssh/telnet/ftp) and broadcast (DHCP/BOOTP/ARP)
- Unicasts, Broadcasts, Unicasts and Multicasts
- update-rc.d <servicename> <setting>
-
- service level security, Service level security
- update-rc.d apmd remove
-
- service level security, Service level security
W
- WAN, Briefly on LAN 's and WAN's, What technology must we look at when using a WAN
-
- Analogue lines, Analogue lines
- networking types, How do we connect the machines Physically
- WAN - Digital lines
-
- ADSL, Digital lines (T1, E1, and ADSL Etc.)
- E1, Digital lines (T1, E1, and ADSL Etc.)
- T1, Digital lines (T1, E1, and ADSL Etc.)
- WI-FI, Others: Wi-Fi and ATM
