I tried that. I got the following error:
s...@ubuntu:~/sage/local/bin$ sage
----------------------------------------------------------------------
| Sage Version 4.2, Release Date: 2009-10-24 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
sage: notebook.setup()
Using dsage certificates.
==================================================
Generating public/private key pair for authentication...
Your key will be stored in /home/sage/.sage/dsage/dsage_key
Just hit enter when prompted for a passphrase
==================================================
/home/sage/.sage/dsage/dsage_key already exists.
Overwrite (y/n)?
Client configuration finished.
Worker configuration finished.
Choose a domain name for your SAGE notebook server,
for example, localhost (personal use) or ubuntu.chosun.ac.kr (to allow
outside connections).
Domain name [localhost]:
Using default localhost
==================================================
Generating SSL certificate for server...
Using certtool to generate key
certtool --generate-privkey --outfile /home/sage/.sage/dsage/
cacert.pem
certtool: /home/sage/sage/local/lib/libgnutls.so.26: version
`GNUTLS_2_8' not found (required by certtool)
certtool: /home/sage/sage/local/lib/libgnutls.so.26: version
`GNUTLS_2_8' not found (required by certtool)
==================================================
---------------------------------------------------------------------------
OSError Traceback (most recent call
last)
...
195
196 # Set read only permissions on cert
--> 197 os.chmod(os.path.join(DSAGE_DIR, 'cacert.pem'), 0600)
198
199 # create database schemas
OSError: [Errno 2] No such file or directory: '/home/sage/.sage/dsage/
cacert.pem'
sage:
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