problems download specific file types

From: Cory C. Albrecht (coryalbrecht_at_hotmail.com)
Date: 08/01/04

  • Next message: Ian: "Re: sendmail.cf" 
    Date: Sun, 01 Aug 2004 08:05:24 GMT

    Hello all,

    Does anybody know if there are nay settings (network, pppd, how I built
    my kernel, etc...) that would cause problems with open BSD downloading
    Windows *.exe files?

    I have my OpenBSD machine which uses pppd to connect to my dial-up ISP
    set up as a firewall using PF with NAT to allow a Windows XP machine to
    connect to the Internet. With either machine I can surf the web and FTP
    files no problemo as long as they are _not_ Windows *.exe files. If they
    are, regardless of whether I am using
    IE/Netscape/Mozilla/Firefox/wget/ncftp on the winXP machine or
    Mozilla/wget/ncftp/lynx on the OpenBSD machines, I can only get a few
    10s of kB of an *.exe file and then nothing. The TCP connection never
    times out, just stays there for ever until my ISP drops the connection
    (six hours was the longest time).

    This isn't just an issue with one website or with one FTP server - it
    happens with any one I try. I've even tried logging on to a remote
    account, downloading the *.exe to there, and then trying to get it from
    there to here. No joy - still only a few 10s of kB and then nothing. If
    I gzip the *.exe file on the remote host

    I can see how fouling up /etc/pf.conf or routing between my WinXP and
    OpenBSD machines would prevent the WinXP machine from downloading files,
    but you would expect that to affect _every_ type of file, not just *.exe
    files. And nor would that explain the OpenBSD machine having the exact
    same problem.

    Even if I disable pf and flush all rules, the problem still continues on
    the OpenBSD machine. I have turned settings for pppd on and off and back
    and forth so many times I'm dizzy, increased the allowed idle time,
    removed all active filters, nothing seems to make any difference at all.

    If I take the modem out of the OpenBSD machine and place it in the WinXP
    machine set it up to gatewat for the OpenBSD machine there is no problem
    whatsoever downloading anything.

    Does anybody have even the slightest idea what might be causing this
    problem? What woudl prevent OpenBSD from downloading *.exe files but
    allow everything else?

    Thanks in advance.

    Files:

    /etc/pf.conf

    ext_if="ppp0"
    int_if="fxp0"
    nat pass on $ext_if from fxp0:network to any -> ($ext_if)
    pass in all
    pass out all
    block in log on $ext_if proto { tcp, udp } from any port { 135, 137,
    138, 139, 445 }
    block in log on $ext_if proto { tcp, udp } to any port { 135, 137, 138,
    139, 445 }
    block out log on $ext_if proto { tcp, udp } from any port { 135, 137,
    138, 139, 445 }
    block out log on $ext_if proto { tcp, udp } to any port { 135, 137, 138,
    139, 445 }

    /etc/ppp/options

    /dev/cua02 57600 crtscts
    defaultroute
    netmask 255.255.255.0
    192.168.1.2:192.168.1.3
    ipcp-accept-local
    ipcp-accept-remote
    demand
    idle 300
    #active-filter "not (port 135 and 137 and 138 and 139 and 445)"
    noauth

    /etc/ppp/peers/nonline (for "pppd call nonline")

    /dev/cua02 57600 crtscts
    defaultroute
    netmask 255.255.255.0
    192.168.1.2:192.168.1.3
    ipcp-accept-local
    ipcp-accept-remote
    demand
    idle 300
    #active-filter "not (port 135 and 137 and 138 and 139 and 445)"
    name bytor
    remotename nonline
    noauth
    connect "/usr/sbin/chat -v -f /etc/ppp/peers/nonline.chat"

    /etc/ppp/peers/nonline.chat

    ABORT "NO CARRIER"
    ABORT "NO DIALTONE"
    ABORT "ERROR"
    ABORT "NO ANSWER"
    ABORT "BUSY"
    "" "ATE1L3M1W1X4V1"
    "OK" "ATDT489-2298"
    ogin:--ogin: <myuserid>
    word: <mypasswd>

    If any other info/files might help somebody figure this out for me, let
    me know and I will post it.

    Thanks in advance.

  • Next message: Ian: "Re: sendmail.cf"

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