ping sweep by ping command

sweeping from 1 to 15:

-c: count of ping

-t: TTL option

-w: timeout -- second

bash-3.2$ for i in {1..15}; do ping -c 1 -w 1 10.0.1.$i | grep 'from'; done

64 bytes from 10.0.1.1: icmp_seq=0 ttl=255 time=184.080 ms

64 bytes from 10.0.1.12: icmp_seq=0 ttl=64 time=0.057 ms

64 bytes from 10.0.1.13: icmp_seq=0 ttl=64 time=322.238 ms

64 bytes from 10.0.1.14: icmp_seq=0 ttl=64 time=5.747 ms

Comments

SNMP mib tips: snmpwalk & snmptranslate

Referring to this web site: https://gist.github.com/bahootyper/575190 The following explanations are about snmpwalk & snmptranslate command options. #Displayes every OID $ snmptranslate -Tp #Dispaly OID label(MIB name) from OID $ snmptranslate .1.3.6.1.4.1.14823.2.2.1.1.2.1.1.2 WLSX-SWITCH-MIB::userPhyAddress #Dispaly MIB tree name from OID label #-IR: label, -Tp: tree option $ snmptranslate -IR -Tp nUser6Name +-- -R-- String nUser6Name(3) Textual Convention: DisplayString Size: 0..128 #Dispaly MIB tree name from OID label #-IR: label, -Tp: tree option $ snmptranslate -Tp .1.3.6.1.4.1.14823.2.2.1.14.1.2.1.3 +-- -R-- String nUser6Name(3) Textual Convention: DisplayString Size: 0..128 # OID's detailed option $ snmptranslate -Td .1.3.6.1.4.1.14823.2.2.1.14.1.2.1.3 WLSX-USER6-MIB::nUser...

SNMP mib file installation

Step1: Installing private MIB file and changing SNMP configuration on PC Refeering to the following link for private mibs: http://changineer.info/server/monitoring/monitoring_snmp.html http://wiki.pomme-tech.com/index.cgi?page=%A5%D7%A5%E9%A5%A4%A5%D9%A1%BC%A5%C8MIB%A4%CE%C4%C9%B2%C3&print=1 http://www.lesstep.jp/step_on_board/linux/23/ Refeering to the following link for errors related to mibs: http://www.zabbix.jp/node/3056 http://serverfault.com/questions/440319/did-not-find-zerodotzero-in-module-snmpv2-smi Step2. installing private mib files in an appropriate directory(/usr/share/snmp/private-bims) Step3. changing snmp.conf files. You may need to create an empty new file NOT snmpd.conf. ---------------------------------------- /etc/snmp/snmp.conf MIBDIRS /usr/share/snmp/mibs:/usr/share/snmp/private-bims MIBS all ---------------------------------------- Step4: Checking the output before and after installing private mib files. You don't need to restart th...

Honebrew on MAC

referring to Homebrew site. Step1. Installing brew /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" Step2. Executing brew doctor to check brew status $ brew doctor Your system is ready to brew. Step3. Check brew version $ brew -v Homebrew 1.3.4 Homebrew/homebrew-core (git revision 2105c; last commit 2017-10-01)

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