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BJ_114988's avatar
BJ_114988
Icon for Nimbostratus rankNimbostratus
Nov 26, 2018
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confused! not sure what is difference between these commands

what is difference between curl , openssl and WGET ?

 

when to use these commands ?

 

as all commands basically used to test ssl on server or VIP. is ther any difference in ciphers that they used.

 

i read that they use some different ssl libraries. is it true ?

 

application delivery
BIG-IP
curl
devops

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  • Sukesh123456's avatar
    Sukesh123456
    Icon for Altostratus rankAltostratus
    Nov 27, 2018

    Hi BJ ,

     

    what is difference between curl , openssl ?

     

    Ans. Curl is a tool to transfer data from or to a server, using one of the supported protocols (DICT, FILE, FTP, FTPS, GOPHER, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, POP3, POP3S, RTMP, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET and TFTP). The command is designed to work without user interaction.

     

    So basically if your application server supports http ( non - encrypted) data , you can fetch or send http data to or from a server. During use of this command it allows you to manually set ciphers and test . For example. - curl -kv --sslv2 -- ciphers AES128-SHA https://10.1.1.1:443

     

    OPENSSL - If you familiar with command line of f5 , you can use this feature to change certificates formats , generate cert etc.This is only for SSL related purposed and has limitations.

     

  • BJ_114988's avatar
    BJ_114988
    Icon for Nimbostratus rankNimbostratus
    Jan 02, 2019

    Could you please tell what is the difference between SSL ciphers that are used in openssl and curl ?

     

    how does it decides which cipher suite to use and send to client during SSL handshake for negotiation ?