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wget maven ntlm proxy

How to make wget, curl and Maven download behind an NTLM Proxy

Working on CentOS, behind an NTLM proxy:
  1. yum can deal without problem with a NTLM Proxy
  2. wget, curl and Maven cannot
The solution is to use "cntlm".
"cntlm" is a NTLM client for proxies requiring NTLM authentication.

How it works
  • Install "cntlm"
  • Configure "cntlm" 
    • by giving it your credentials
    • by giving it the NTLM Proxy
  • Start "cntlm" deamon (it listens to "")
  • Configure wget, curl and Maven to use "cntlm" instead of using directly the NTLM Proxy
Note: You will have then a kind of 2 stages Proxy: cntlm + the NTLM proxy

Configure CNTLM

After installing cntlm, the configuration file is in "cntlm.conf".

You must have your domain (in the Windows meaning), proxy login and  proxy password.
Mine are respectively:, mihamina, 1234abcd (yes, just for the example)

You must have you NTLM Proxy Hostnama or IP and port
Mine are respectively:, 8080

You have to make cntlm format them to make cntlm job easy by

cntlm -H -d -u mihamina

This will output something like:

PassLM          D6F1CF1F55CFC61D2C114A2E7
PassNT          B649D7C5ECEFD7A189C189763
PassNTLMv2      F9E6B8689C0B5CE6194605D73

Thanks to

The final "cntlm.conf" file looks like:

Username        mihamina                                                                                                                                                                  
Password        1234abcd                                                                                                                                                              
PassLM          D6F1CF1F55CFC61D2C114A2E7                                                                                                                                         
PassNT          B649D7C5ECEFD7A189C189763                                                                                                                                         
PassNTLMv2      F9E6B8689C0B5CE6194605D73                                                                                                                                         

Configuring wget to use cntlm

You have to set the following environment variables:
export https_proxy=${http_proxy}
export http_proxy=http://localhost:3128
Feel free to put it into ".bashrc" or ".bash_profile", depending on your distribution.

Configuring Maven to use cntlm

In "~/.m2/settings.xml"

<settings xmlns="" xmlns:xsi=""



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