crestron troubleshooting

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

not too big difference. If the positive and negative resistance are very small or close to the conduction, it is indicated that there is a short-circuit on the motherboard, should check the cause of the short circuit. When troubleshooting the short-circuit, plug in all the I/O cards to measure whether the +5v,+12v and the ground are short. In particular, whether the +12v and surrounding signals collide. If you have exactly the same type of motherboar

Sometimes the hard drive is in use, will suddenly "when" straight ring, and then can not continue to read and write, restart the computer again, in the BIOS can not find the hard drive. The more typical fault is just boot hard disk use normal, but when the use of one or two hours, the hard disk suddenly appear this abnormal sound phenomenon. From the surface analysis, this seems to be a hard drive of a chip instability caused hard disk work paralysis. The hard drive needs a steady voltage and s

in the paper height exceeds this standard, it may hinder the paper system of the normal roll paper, at this time must be properly placed in the appropriate amount of paper to the feed slot to eliminate the failure to enter the paper. Again, to see if the printer is using the paper is the standard of the special printer, if the use of paper is too thick or too thin, it is possible to appear in the paper phenomenon. Finally, if it's an inkjet printer, you need to see the printer control Panel in

time_wait that are specified in the TCP specification must wait 2MSL time. However, in Linux, if the tcp_tw_recycle,time_wait TCP connection is turned on, it will not wait for 2MSL time (instead of RTO or 60s) to achieve the purpose of quickly reusing (reclaiming) a TCP connection in the TIME_WAIT state. This can cause the connection to receive data that was previously connected. To do this, Linux will record the peer information of the TIME_WAIT connection, including the IP address, timestamp,

(Config-router) #exitIf this is all configured, then use the ping command to test it!Here is a start-up-configuring HSRP Hot Spares:Configure on the active three-layer switch:Switch (config) #interface vlan 1Switch (config-if) #standby 1 IP 192.168.1.254Switch (config-if) #standby 1 priority 200Switch (config-if) #standby 1 track fastethernet 0/2Switch (config-if) #standby 1 preemptConfigure on the backup layer three switch:Switch (config) #interface vlan 1Switch (config-if) #standby 1 IP 192.1

. Reset the virtual machine NAT network:Remove the NAT network. Add the VMnet8 to NAT mode and change the IP-heavy.650) this.width=650; "Src=" Http://note.youdao.com/yws/api/personal/file/28C043C1B6034815BA4C9FDCA88E24CE?method =downloadsharekey=db2cb07d5bebd7f217047829a770f429 "alt=" image "Style=" Border-style:none;background-color: RGB (255,255,255); "/> 650) this.width=650; "Src=" http://note.youdao.com/yws/api/personal/file/7B9327C2AAD443C6B54A6553D64A83E6?method= DOWNLOADSHAREKEY=2E92350A7

1) Check the physical layer physical layersIP link is etho, see if the network card stat up, the IP link set eth0 up to the UP network cardor whether the Ifconfig eth0 can acquire IP2) Check the data link layerDid arp-n learn about Mac?3) Network layerPingDid Route-n learn how to routeTraceroute or Mtr-n 8.8.8.8NETSTAT-ANL whether to monitor IP or ss-antDig @dns Server Destination IP#如果禁ping, you can use the Telnet test, the ping is the ICMP protocol, Telnet is the TCP IP protocol4) Transport La

validation has an error, return to the index page note, not redirect to index to do this effect is if there is an error will still be on the index page Face and prompt account and password can not empty the account write, but the password is not written, will only prompt the password is blank, and the Account input box fill in the information will not disappear is because 1. When we come to this page, we send an empty admin object. , so he put the value you wrote in the set into the admin box i

Synchronization method: is to add the Sync keyword to the methodWhat is the lock object for the synchronization method? This (do not believe you can try to change the following this to other objects) Packagecom.test; Public classSellticketImplementsRunnable {/**Note that if you are inheriting, you must use static adornments here*/ Private intTickets = 60; Private intx = 0; @Override Public voidrun () { while(true){ if(x%2==0){ synchronized( This) {Dosell (); }

Issue background:When using the third-party library Uiautomator when you do Android automation, you are prompted to install it, but when you install the Uiautomator library, you are prompted to install the current PIP version at a low 10.0.1 version. However, when upgrading to an upgrade to that version, there was a problem, and trying multiple methods failed.Problem Analysis:After using the install command, there are some words like insufficient permissions and access denied in the failed promp

to see what the process is doing, where it can navigate to the process card, whether the card is connected or read the network data, etc.When sending a message with the terminal is a go back, there is a fd=10 operation quite frequent and refreshing very fast.Use Lsof to track this process# lsof -p 24373 | grep 10As you can see, this is the native communication to the Redis host (no default 6379 port number is used)Is it the redis bottleneck that caused it?Re-confirm that the Redis configuration

**常见错误：**1. Cannot complete your request/无法完成您的请求 在NetScaler与StoreFront集成配置中，这个报错是最容易遇到的。导致这个问题的原因有很多，可能有以下几种： 在StoreFront上设定的域认证的名称与在NetScaler上设定的Single sign on的单点登录所设定的短域名不一致。 Callback 中所设定的FQDN，在StoreFront上不能正常解析。 NetScaler不能正确解析你所设定的StoreFront的FQDN。 NetScaler和StoreFront/DDC之间通信的问题。 确认各服务都正常启动。2. 使用iOS设备，第一次登陆失败，退出receiver后再重新登陆正常。 在StoreFront主机上，定位到c:\inetpub\wwwroot\Citrix\Citrix NetScaler Troubleshooting Ideas

not.Finally, we are familiar with a slightly controversial conclusion: as long as you are familiar with a language, then learning other languages will be very easy.Personally, I support this conclusion. The premise is to know the "familiarity" of the two words of the component.Read the two C + + classic books said that they are not familiar with C + + is wrong, like the introduction of the algorithm to say that they know the algorithm is not correct, need a lot of practice, thinking, deep exper

recently wrote C + + projects with VS2010, it is strange that each build solution has a fatal error LNK1123 errors, prompting the generation to fail. Review the data summary solution as follows:(1) Item--Properties--and connectors--generate manifest in the manifest file is modified to no this method generally resolves the problem, but it is set up once for each project you create.(2) Find out if there are two Cvtres.exe delete older versions. The first one is in your VS2010 installation director

, such as the width and height of the HTML element (object), are "lost"; White-spacetext in a specified paragraph does not wrap: p{ white-space: nowrap } Note: The property value "Inherit" is not supported by any version of Internet Explorer (including IE8). Normal default. The blank will be ignored by the browser. The pre blank is reserved by the browser. It behaves like a Min-heightSets the element minimum height. This property will be adaptive to

connection:[y/n]")If mysql_prolist== "Y":F=open ("/python/mysqlconn.txt")U=f.readline ()Print UMysql_max_prolist=raw_input ("Check your mysql max_connection:[y/n]")If mysql_max_prolist== "Y":F1=open ("/python/mysqlconn.txt")U1=f.readlines ()For line in U1:Print LineIf choose== "3":Name=raw_input ("Please input your The Well update package: (. tar)"). Strip ()If Len (name) ==0:Print "Empty mysqluser,try again"ContinueElsePass# Os.system ("cd/python/%s"% (name))W=os.listdir ('/python/%s '% (name)

problem, this time you should be very anxious."So you say the ideal load is 1.00?" Well, that's not exactly true. Load 1.00 indicates that the system has no remaining resources. In practice, an experienced system administrator would draw this line at 0.70. If your system's load is 0.70 or so long, you need to take some time to understand why before things get worse. multi-core processors: The system still calculates load mean with the core number of processorsIn multi-core processing, your syst

means that each process can be completed within a full CPU cycle. CPU Load High Troubleshooting ideas 1. First troubleshoot which processes have high CPU usage. Through the command PS UX 2. View the CPU usage of each thread corresponding to the Java process. by command: Ps-lp 15047 cu 3. Trace inside the thread to see why the load is too high. by command: Jstack 15047. or print thread Jstack pidof java > Stack.out Find the corresponding ThreadID, an

[INS-30131] Troubleshooting initial setup failures required for setup validation, Windows Oracle installation steps Configuration: System: WINDOWS10 Databases: Oracle Database 12c 1th Edition Quick version: 1.0 problem: [INS-30131] The initial setup required to perform setup validation failed, problem solved Problem reason and solution: 1.1 error occurs because the user file contains Chinese. (If your account name contains Chinese characters C:\Use