traceroute unix example

Traceroute command usage instance traceroute is the routing tool used to track data packets arriving at the network host. traceroute is the gateway tool used to send data packets between the host and the target host. The principle of traceroute is to try to send a test packet with the smallest TTL to track the gateway

process of restarting, the customer did not send text) after restarting, the customer sends the text, but in the server TCP has lost the previous connection information, so in response to an RST, The call returns Econnreset.6) Server main machine: When the normal shutdown, the INIT process usually first send sigterm signal to all processes (can be captured, the default action is to terminate the process, only ignored or processed after no termination, will be terminated by Sigkill), and wait fo

People who want to seriously study UNIX environment advanced programming may want to knock the example in the book and run a look at the effect. But for the novice, there may be some difficulty, because the example used in the header file and some functions do not know where, the compilation may also be problematic. This article here is an

Qingming Holiday three days did not out of the bedroom door, first put the independent blog toss good. The domain name is not well filed. Domain name is ilovecpp.com, meaning "I love C + +", good shy, hide face, escape:). Words cnblogs.com the interface is ugly. Most of the rest of the time is to toss this small project, Unix kernel functions of various structures, flags even check man manual or look at the head big. Fortunately, it has been achieved.

The C language implements the character Fu Jing Unix timestamp, which needs to be converted to a TM type before getting its Unix timestamp. Attached implementation code: #include Above the C language implementation of the word Fu Jing Unix Timestamp Simple example is a small series to share all the conte

Recently in the "UNIX Network Programming" (abbreviated UNP) and "Linux program Design", for the first time in UNP to get the example of the server, practice always a little headache, Because the author contains all of the declarations in the unp.h, resulting in the subsequent writing of the code will be dependent on the header file, and learn not to call the corresponding function, which should contain the

Landlord rookie, from the "Linux/unix system Programming Manual" to learn, learn the procedure must first run the example to play, but did not know how to do 1 hours in the book example how to run, Baidu does not come out, casually dozen a make order drink a cup of water, found out a xx.a file, the problem solved. Take out and share with you, don't like to Spray,

Today I learned the Example 2-2 of "Advanced Programming in UNIX environment", but I am very confused. I created a directory named sample2_2, put the source code in it, compile it, and generate the sample2_2 file. Then copy pathconf. sym and sysconf. sym to this directory. Run the following command: ./Sample2_2 pathconf. sym The result is as follows: No symbol for arg_max Arg_max = 2621440 Max_canon

Sed and awk are powerful text filtering tools in the UNIX environment. With SED and awk, it is easy to edit local files, and it is easier to use regular expressions to filter out the output of other commands. SED represents the stream Editor, which means that sed is a flow-oriented mechanism. All inputs provided for the SED command are sent to STDOUT after being processed by SED. The SED command does not change the input text. Common sed format: I.