From Bugzilla Helper: User-Agent: Mozilla/4.76 [en] (X11; U; Linux 2.4.5 i686) Description of problem: With 7.1+ it seems that some services require connectivity to the Internet to work properly, even if one wants merely to talk to another machine on the local LAN. How reproducible: Always Steps to Reproduce: 1.Configure a local LAN (more than one machine) using 192.168.80.* addresses 2.Use one machine as dialup Internet server for all others (using IP masq support) 3.Try to use ftp between machines on the LAN while the server is NOT connected to Internet. This will cause FTPD to hang forever. Actual Results: FTPD hangs without prompting for username and password Expected Results: FTPD should prompt for usename and password Additional info: When I try to use Sun's latest Java JDK v1.4.0 and run the demo's, they run as if I were trying to run them on a remote machine with X-windows redirected using the DISPLAY variable, even when I run them on the local machine. This slows down the JDK and causes font problems as well. In general, it appears that 7.1+ RedHat forces connections to go to the Internet and back, slowing things down and causing other problems.
Forgot to mention: I cannot install Borland's JBuilder4, even after upgrading to 256MB of RAM. The installation program hangs for a long time, then the first install window appears, but then everything just stalls. I suspect that this is because the OS is in effect installing this large program "remotely" even though it is actually installed locally. I tested this install under Linux 6.1 and it worked. Perhaps it is my X server? (Intel 815?). The relationship to the original report is the round-trip to the Internet, or so it seems to me.
Being just another Red Hat Linux user, I can't confirm this misbehaviour. Maybe you have a bad default route configured?
The ftpd problem is almost certainly caused by a broken DNS setup. wu-ftpd will hang for 60 seconds (hardly forever ;) ) if it can't perform a reverse lookup of the IP trying to connect. The JBuilder problem doesn't have anything to do with this; If it worked in 6.1, my guess is they're linking dynamically to libraries we no longer ship, such as ancient versions of libstdc++ or glibc, possibly even libc5. Since I don't have JBuilder and it isn't free, I can't debug this; please report this to Borland. It's their problem.