Re: By default nmap requires an internet connection

Le mercredi 14 mai 2025 à 09:55 +0200, Rainer Fiebig a écrit :
> Am 14.05.25 um 06:07 schrieb Xi Ruoyao ([email protected] via blfs-
> dev
> Mailing List):
> > On Tue, 2025-05-13 at 18:13 -0500, Bruce Dubbs wrote:
> > > On 5/13/25 5:59 PM, Joe Locash ([email protected] via blfs-dev
> > > Mailing List) wrote:
> > > > 
> > > > On 5/13/25 6:53 PM, Bruce Dubbs ([email protected] via
> > > > blfs-dev Mailing List) wrote:
> > > > > On 5/13/25 5:34 PM, Joe Locash ([email protected] via blfs-
> > > > > dev Mailing List) wrote:
> > > > > > 
> > > > > > On 5/13/25 5:51 PM, Bruce Dubbs ([email protected] via
> > > > > > blfs-dev Mailing List) 
> > > > > > wrote:
> > > > > > > I looked at my build log and didn't see where it is using
> > > > > > > an internet connection. 
> > > > > > > Can you show where that is happening? 
> > > > > > 
> > > > > > 
> > > > > > /usr/bin/python3 -m build zenmap/
> > > > > > * Creating isolated environment: venv+pip...
> > > > > > * Installing packages in isolated environment:
> > > > > >    - setuptools
> > > > > >  > /usr/bin/python3 -m pip --python /tmp/build-env-
> > > > > > fr8do3me/bin/python install
> > > > > >    --use-pep517 --no-warn-script-location --no-compile -r
> > > > > > /tmp/build-reqs-
> > > > > >    uok0756y.txt
> > > > > > < WARNING: Retrying (Retry(total=4, connect=None,
> > > > > > read=None, redirect=None,
> > > > > >    status=None)) after connection broken by
> > > > > > 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSC
> > > > > > onnection object
> > > > > >    at 0x7f83a5b830e0>: Failed to establish a new
> > > > > > connection: [Errno -3]
> > > > > >    Temporary failure in name resolution')':
> > > > > > /simple/setuptools/
> > > > > > 
> > > > > > ....
> > > > > > 
> > > > > > < ERROR: Could not find a version that satisfies the
> > > > > > requirement setuptools
> > > > > >    (from versions: none)
> > > > > > < ERROR: No matching distribution found for setuptools
> > > > > 
> > > > > Interesting.  I have:
> > > > > 
> > > > > /usr/bin/python3 -m build zenmap/
> > > > > /usr/bin/python3 -m build ndiff/
> > > > > * Creating isolated environment: venv+pip...
> > > > > * Installing packages in isolated environment:
> > > > > * Creating isolated environment: venv+pip...
> > > > > * Installing packages in isolated environment:
> > > > > Compiling libnsock
> > > > > ...
> > > > > 
> > > > > We are installing setuptools in LFS.  Did you not have that
> > > > > installed?
> > 
> > It cannot use the setuptools in LFS because they are not creating
> > venv
> > with --system-site-packages (like what we are doing for various
> > Python
> > modules).  If you purge ~/.cache/pip and disconnect the network (or
> > use
> > unshare -r -n to create an environment with no network) you can
> > reproduce the issue.
> "--system-site-packages" is indeed used several times in BLFS-12.3
> but
> contrary to other options it's not explained anywhere.

Ouch, good catch! Will fix this, thanks!

Pierre

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