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1 ) Create new branch git checkout -b RCOM-605-FatPipe-Rollback 2) Compare the difference of a commit and its ancestor git diff <commit-id>^! 3) git r 阅读全文
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strace for troubleshoot , to know the system call, know the opened file system call, interface between an application and linux kernel execute() clone 阅读全文
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Connection 阅读全文
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Establish 1) A->B, Syn message include sequence number X 2) B->A, Ack with X+1 and Syn with sequence number Y 3) A-> Ack with Y+1 Finsih 1) A-> B FIN 阅读全文
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1) IPv4 32 bits , IP v6 128 bits 2) No address collision 3) no need for DHCP 4) more efficient routing 5) Ipv6 fixed 40 Bytes of header, 32 bytes are 阅读全文
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There are two movitation for SSL/TSL 1) Data encryption, if the data is captured by 3rd party, the data will be in encrypted. 2) Host identification, 阅读全文
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How DNS Work When the client try to connect to a hostname, it go through the following process 1) Check it own cache, to see if it can find it, ipconf 阅读全文