fping
Posted sunyyer
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fping
fping程序类似ping,也是通过发送ICMP包协议回复请求检测主机是否存在,不过fping可以在命令行中指定要ping的主机数量范围,也可以指定含有要ping的主机列表文件。fping可以实现多主机同ping,当指定的主机被ping通时,就会从待ping主机列表中移除,当指定主机未ping通时,系统会先放置等待后续进一步指令。以下是fping指令
Probing options:
- -4, --ipv4 only ping IPv4 addresses
- -6, --ipv6 only ping IPv6 addresses
- -b, --size=BYTES amount of ping data to send, in bytes (default: 56)
- -B, --backoff=N set exponential backoff factor to N (default: 1.5)
- -c, --count=N count mode: send N pings to each target
- -f, --file=FILE read list of targets from a file ( - means stdin)
- -g, --generate generate target list (only if no -f specified)
- (give start and end IP in the target list, or a CIDR address)
- (ex. fping -g 192.168.1.0 192.168.1.255 or fping -g 192.168.1.0/24)
- -H, --ttl=N set the IP TTL value (Time To Live hops)
- -I, --iface=IFACE bind to a particular interface
- -l, --loop loop mode: send pings forever
- -m, --all use all IPs of provided hostnames (e.g. IPv4 and IPv6), use with -A
- -M, --dontfrag set the Don‘t Fragment flag
- -O, --tos=N set the type of service (tos) flag on the ICMP packets
- -p, --period=MSEC interval between ping packets to one target (in ms)
- (in loop and count modes, default: 1000 ms)
- -r, --retry=N number of retries (default: 3)
- -R, --random random packet data (to foil link data compression)
- -S, --src=IP set source address
- -t, --timeout=MSEC individual target initial timeout (default: 500 ms,
- except with -l/-c/-C, where it‘s the -p period up to 2000 ms)
Output options:
- -a, --alive show targets that are alive
- -A, --addr show targets by address
- -C, --vcount=N same as -c, report results in verbose format
- -D, --timestamp print timestamp before each output line
- -e, --elapsed show elapsed time on return packets
- -i, --interval=MSEC interval between sending ping packets (default: 10 ms)
- -n, --name show targets by name (-d is equivalent)
- -N, --netdata output compatible for netdata (-l -Q are required)
- -o, --outage show the accumulated outage time (lost packets * packet interval)
- -q, --quiet quiet (don‘t show per-target/per-ping results)
- -Q, --squiet=SECS same as -q, but show summary every n seconds
- -s, --stats print final stats
- -u, --unreach show targets that are unreachable
- -v, --version show version
- -x, --reachable=N shows if >=N hosts are reachable or not
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