CentOS網路最新工具之fping

CentOS網路最新工具之fping
系統中有個最最常用命令工具--ping,而fping 是ping 工具的加強版本。安裝過程很簡單：[root@mail /]#wget --limit-rate 500khttp://www.fping.org/dist/fping-3.8.tar.gz[root@mail /]#tar zxvffping-3.8.tar.gz && cdfping-3.8[root@mail /]#./configure && make && make install[root@mail /]#fping --helpfping: invalid option -- '-'Usage: fping [options] [targets...] -a show targets that are alive -A show targets by address -b n amount of ping data to send, in bytes (default 56) -B f set exponential backoff factor to f -c n count of pings to send to each target (default 1) -C n same as -c, report results in verbose format -D print timestamp before each output line -e show elapsed time on return packets -f file read list of targets from a file ( - means stdin) (only if no -g specified) -g generate target list (only if no -f specified) (specify the start and end IP in the target list, or supply a IP netmask) (ex. fping -g 192.168.1.0 192.168.1.255 or fping -g 192.168.1.0/24) -H n Set the IP TTL value (Time To Live hops) -i n interval between sending ping packets (in millisec) (default 25)-l loop sending pings forever -m ping multiple interfaces on target host -n show targets by name (-d is equivalent) -p n interval between ping packets to one target (in millisec) (in looping and counting modes, default 1000) -q quiet (don't show per-target/per-ping results) -Q n same as -q, but show summary every n seconds -r n number of retries (default 3) -s print final stats -I if bind to a particular interface -S addr set source address-t n individual target initial timeout (in millisec) (default 500) -T n ignored (for compatibility with fping 2.4)-u show targets that are unreachable -O n set the type of service (tos) flag on the ICMP packets -v show version實用案例

• 例出區域網路中存活的主機

[root@mail /]#fping -a 192.168.0.1/24 -g 2> /dev/null192.168.0.1192.168.0.3………………

• 查詢DNS

fping 有一個-d ,它通過每一個echo 回應進行DNS查詢來返回主機名稱。使用該選項可以在ping 的回應資訊中列印出主機名稱而非IP地址[root@mail /]#cat ip_list.txt192.168.20.5192.168.20.11192.168.20.53192.168.20.241……………………[root@mail /]#fping -a -d 2>/dev/null <ip_list.txtwww.vqiudns.vqiu