SHELL_SAFE = re.compile('^[-a-zA-Z0-9_=+:.,/]*$')
+hostbyname_cache = dict()
+
def openssh_has_persist():
global OPENSSH_HAS_PERSIST
if OPENSSH_HAS_PERSIST is None:
host = '%s:%s' % (host,port)
# Create a temporary server key file
tmp_known_hosts = tempfile.NamedTemporaryFile()
-
+
+ hostbyname = hostbyname_cache.get(host)
+ if not hostbyname:
+ hostbyname = socket.gethostbyname(host)
+ hostbyname_cache[host] = hostbyname
+
# Add the intended host key
- tmp_known_hosts.write('%s,%s %s\n' % (host, socket.gethostbyname(host), server_key))
+ tmp_known_hosts.write('%s,%s %s\n' % (host, hostbyname, server_key))
# If we're not in strict mode, add user-configured keys
if os.environ.get('NEPI_STRICT_AUTH_MODE',"").lower() not in ('1','true','on'):