F
- F command (sendmail), Defining Classes
- fake-iquery option (named), The options Statement
- FancyIndexing keyword, Creating a Fancy Index
- fax mailer, MAILER
- FEATURE macro (sendmail), Building a sendmail.cf with m4 macros, m4 sendmail Macros, FEATURE–FEATURE
- features, FEATURE, DOMAIN
- DOMAIN source file, DOMAIN
- sendmail, FEATURE
- FETCH command (IMAP), Internet Message Access Protocol
- fetch-glue option (named), The options Statement
- fg option (vfstab file), The vfstab and fstab files
- file option (pppd), The PPP Daemon
- file servers, File Servers
- file sharing, File Sharing, The Network File System, NFS Daemons, Sharing Unix Filesystems, Mounting Remote Filesystems
- mounting remote directories, Mounting Remote Filesystems
- NFS, The Network File System, NFS Daemons
- daemons, NFS Daemons
- overview, The Network File System
- Unix, Sharing Unix Filesystems
- File Transfer Protocol, Application Layer (see FTP)
- filename parameter (dhcpd), Configuration Parameters
- FILES = (Distfiles), rdist
- Files directive (httpd.conf file), Defining Where Things Are Stored
- files option (named), The options Statement
- filtering routers, Filtering Traffic with iptables, Defining iptables filter rules
- iptables command, Defining iptables filter rules
- FIN bit (TCP), Transmission Control Protocol
- find command, locating httpd.conf file, Configuring the Apache Server
- firewalls, Firewalls–Firewalls, Functions of the Firewall, Filtering Traffic with iptables, Defining iptables filter rules
- filtering routers, Filtering Traffic with iptables
- functions of, Functions of the Firewall
- iptables command, Defining iptables filter rules
- overview, Firewalls–Firewalls
- FIRST (Forum of Incident Response and Security
Teams), Use the network to distribute information
- fixed-address parameter (dhcpd), Configuration Parameters
- Flag value (dhcpd option statement), DHCP Options
- Flags field, Fragmenting datagrams, The Routing Table, The Routing Table, The Minimal Routing Table, Defining Mailers
- Linux routing table, The Routing Table, The Routing Table
- routing tables, The Minimal Routing Table
- sendmail, Defining Mailers
- flash parameter (gated), The kernel Statement
- Flg field (netstat command), The Interface Name
- flow control, Internet Control Message Protocol, Transmission Control Protocol
- Acknowledgment Segment, Transmission Control Protocol
- ICMP, Internet Control Message Protocol
- flush command (dip), Dial-Up PPP
- FollowSymLinks (Options directive setting), Controlling Server Options
- Format of Headers (generic-linux.cf
section), General sendmail.cf Structure
- Forum of Incident Response and Security Teams
(FIRST), Use the network to distribute information
- forward only option (named.conf file), A caching-only server configuration
- forward option (named), The options Statement
- forward-mapping zone file, Configuring named, The Forward-Mapping Zone File–The Forward-Mapping Zone File
- forwarders option, A caching-only server configuration, The options Statement
- named options statement, The options Statement
- named.conf file, A caching-only server configuration
- forwarding datagrams, Passing datagrams to the transport layer
- forwarding, sendmail, Personal Mail Forwarding
- FQDN (fully qualified domain name), Domain Names
- Fragmentation Offset field, Fragmenting datagrams
- fragmenting datagrams, Fragmenting datagrams
- frames, TCP/IP Protocol Architecture, Network Access Layer
- Network Access Layer, Network Access Layer
- FreeBSD, network interface support, The device statement
- fstab files, The vfstab and fstab files
- FTP (File Transfer Protocol), Application Layer, Managing Distributed Servers
- distributed servers, managing, Managing Distributed Servers
- fully qualified domain name (FQDN), Domain Names
- FYI (For Your Information) RFCs, Protocol Standards