bgp commands for troubleshooting

1. Routes identified with R: IGP and BGP Learn the same route, but the IGP learns that the ad is smaller, and the route identifies the route that the R,r identity does not put in the routing table, but is still passed to the other neighbors. You can view the routes identified by the R by command show ip BGP rib-failure.2. Two methods of restarting BGP:Hard restart: Clear IP

I. troubleshooting commands 1. show command: 1) Global commands: Show version; displays the system hardware and software versions, DRAM, Flash Show startup-config; displays the configuration content written into NVRAM Show running-config; displays the currently running configuration content Show buffers; Detailed output buffer name and size Show stacks; provides

Online troubleshooting commands-Shell, online troubleshooting-shell Creation: Liu Xinyu, latest modification: about 4 hours ago Go to metadata start 1. Track online logs and regularly refresh the latest content tail-fn 200 $log 2. Search for a specified string # Show only matching rowsgrep$String $file# Match up or down n rows of the row

Postfix skills and troubleshooting commands Here are some commands I use every day. Of course, other email administrators will also use them, so I will write them down in case I forget them. LIST/print the current Message Queue # Postqueue-p # Mailq If the queue is too long, you can use the tail pipeline to read it. # Mailq | tail Clear queue # Postqu

the add MySQL jar package is called Com.mysql.fabric.jdbc.FabricMySQLDriver. This is wrong and shouldCom.mysql.jdbc.Driver. You can resolve the problem that indicates that the error is not connected. When connecting to a database in Java, we often use such statements in order to prevent the stored data from being garbled: Jdbc:mysql://localhost:3306/weibo?useunicode=truecharacterencoding=utf8 The last characterencoding is the encoding of the specified database.Vi. MySQL Utility commands1. Enqu

Online troubleshooting commands-Shell1. track online logs and regularly refresh the latest content: tail-fn 200 $ log 2. search for a specified String # only show the matched row grep $ String $ file # match the upper and lower lines of the String in the row grep-C n $ String $ file # number of rows matching the String grep $ String $ file | wc-l # match String highlighted grep -- color $ String $ file # us

Docker run-it Docker front-end start Container container -d back-end boot container container -p Fixed port mappings -p non-fixed port mappings --name name the generated container Docker PS: Default display of running container Ps-a Docker rm-f container//Forced removal of containers docker exec-it centos/bin/bash interactive mode into container container 650) this.width=650; "Src=" https://s5.51cto.com/wyfs02/M01/A4/C9/wKioL1mxQS7Scn7vAAA0ez_6jgQ229.jpg-wh_500x0-wm_ 3-wmp_4-s_66

1, the monitoring process GC situation:Jstat-gcutil PID FrequencyExample: Jstat-gcutil 3807 2s2. Monitor Cup and Memory:Command: Top,vmstat,nmonTools: JVISUALVM, Jprofile,perfnom,btrace,loadrunner3, monitoring Io:iostatiostat-d-x-k 1 104, monitoring network: Ifstat,iftop,nethogsMonitor overall bandwidth using ――nload, Bmon, Slurm, Bwm-ng, CBM, speedometer, and netloadMonitor overall bandwidth usage (batch output) ――vnstat, Ifstat, Dstat, and CollectlBandwidth per socket connection using ――iftop,

from name server Updatekvconfig Create or update KV CONFIG. Deletekvconfig Delete KV config. Wipewriteperm Wipe write perm of broker in all name servers Resetoffsetbytime Reset consumer offset by Timestam P (without client restart). updateorderconf Create or UPDATE or delete order conf CLEANEXPIREDCQ clean expired consumequeue on broker. Cleanunusedtopic clean unused topic on broker. startmonitoring Start monitoring Statsall Topic and Consumer TPS stats ALLOCATEMQ Allocate MQ CHECKMSG

I. troubleshooting commands 1. show command:1) Global commands:Show version; displays the system hardware and software versions, DRAM, flashShow startup-config; displays the configuration content written into NVRAMShow running-config; displays the currently running configuration contentShow buffers; Detailed output buffer name and sizeShow stacks; provides the router process and processor utilization infor

1. Check the user's online and login statusW-View Online usersLast-View recent user logins2. View System command Execution historyHistory3. View the process information that the system is running nowPstree-a (simple result)PS aux (Detailed results)4. View network connection InformationNetstat-ntlpNetstat-nulpNetstat-nxlp5. View CPU and Memory run informationFree-m # View Current Memory usageUptime # to see how long the system is runningTop # View System process information (dynamic)6. View hardw

established connections# netstat-s # View Network statisticsProcess:# ps-ef # View All Processes# top # Real-time display of process status (in another article there is a detailed introduction)User:# w # View active Users# ID # last # View user log in log# cut-d:-f1/etc/passwd # View All users of the system# cut-d:-f1/etc/group # View all system groups# crontab-l # View Current user's scheduled tasksService:# chkconfig–list # List all system services# Chkconfig–list | grep on # Lists all startu

you reach 100%, the hardware device is saturated.If the data for the logical device is displayed, then the device utilization does not mean that the backend actual hardware device is saturated. It is worth noting that even if the IO performance is not good, it does not necessarily mean that the application performance will not be bad, can be used such as pre-read, write cache policies to improve application performance."Sar-n DEV 1"View throughput rates for network devicesThere is a need to und

skip the password2, keep the cmd of the previous step does not close, the administrator runs another cmd, directly enter Mysql-u root-p Enter, display the input password, the direct return can be password-free login3, you can change the root password in the second cmd (see two).Note: The process MySQL does not have a net start MySQL operation.Four, net start MySQL when there is no startCheck to see if it is started, or if there is a mysqld.exe process running in the process.MyEclipse Database E