Professional Web Applications Themes

5.3 not accepting connections - What I'm missing? - FreeBSD

Dear all, I've recently moved from FreeBSD 4.8 to 5.3. After the upgrade, I found that my computer doesn't accept outside connections anymore. The problem is: I can't connect to my computer through different services (FTP, Telnet, SSH, etc.) and also, I can't redirect X output to my display. I've verified that the corresponding daemons are running and that all the steps to X redirection are done, but nothing happens. I'm not using a firewall. Looking deeply into the problem, I've found that also my computer doesn't reply to ping request. But changing the kernel variable 'net.inet.icmp.bmcastecho' it started to ...

  1. #1

    Default 5.3 not accepting connections - What I'm missing?

    Dear all,

    I've recently moved from FreeBSD 4.8 to 5.3. After the upgrade, I
    found that my computer doesn't accept outside connections anymore.

    The problem is: I can't connect to my computer through different
    services (FTP, Telnet, SSH, etc.) and also, I can't redirect X output
    to my display. I've verified that the corresponding daemons are
    running and that all the steps to X redirection are done, but nothing
    happens. I'm not using a firewall.

    Looking deeply into the problem, I've found that also my computer
    doesn't reply to ping request. But changing the kernel variable
    'net.inet.icmp.bmcastecho' it started to work. There is something I
    have to change to accept connections that I didn't notice?

    I think that this problem is related to security reasons, but I didn't
    find how to open a little bit my computer.

    Summarizing: from my computer, I can connect to any other machine, but
    I can't do the opposite connections.

    I hope someone could help me. Thanks in advance,

    --
    MX
    Maximiliano Guest

  2. #2

    Default 5.3 not accepting connections - What I'm missing?

    Dear all,

    I've recently moved from FreeBSD 4.8 to 5.3. After the upgrade, I
    found that my computer doesn't accept outside connections anymore.

    The problem is: I can't connect to my computer through different
    services (FTP, Telnet, SSH, etc.) and also, I can't redirect X output
    to my display. I've verified that the corresponding daemons are
    running and that all the steps to X redirection are done, but nothing
    happens. I'm not using a firewall.

    Looking deeply into the problem, I've found that also my computer
    doesn't reply to ping request. But changing the kernel variable
    'net.inet.icmp.bmcastecho' it started to work. There is something I
    have to change to accept connections that I didn't notice?

    I think that this problem is related to security reasons, but I didn't
    find how to open a little bit my computer.

    Summarizing: from my computer, I can connect to any other machine, but
    I can't do the opposite connections.

    I hope someone could help me. Thanks in advance,


    MX
    Maximiliano Guest

  3. #3

    Default Re: 5.3 not accepting connections - What I'm missing?

    On 2005-04-08 18:18, Maximiliano Eschoyez <com> wrote: 

    Are you using ipfw, ipfilter or pf as a firewall? If yes, what
    rules do you use?

    Giorgos Guest

  4. #4

    Default Re: 5.3 not accepting connections - What I'm missing?

    On Sat, 9 Apr 2005 00:27:37 +0300, Giorgos Keramidas
    <upatras.gr> wrote: 
    >
    > Are you using ipfw, ipfilter or pf as a firewall? If yes, what
    > rules do you use?[/ref]

    No, I'm not using any firewall.

    Also, I tried enabling a firewall through rc.conf with the parameters
    firewall_enable="YES"
    firewall_type="open"
    but nothing changed. :-(

    It's very strange because I'm not using any filtering policy.

    Thanks.

    MX
    Maximiliano Guest

  5. #5

    Default Re: 5.3 not accepting connections - What I'm missing?

    On 2005-04-08, Maximiliano Eschoyez <com> wrote: 
    >>
    >> Are you using ipfw, ipfilter or pf as a firewall? If yes, what
    >> rules do you use?[/ref]
    >
    > No, I'm not using any firewall.
    >
    > Also, I tried enabling a firewall through rc.conf with the parameters
    > firewall_enable="YES"
    > firewall_type="open"
    > but nothing changed. :-(
    >
    > It's very strange because I'm not using any filtering policy.[/ref]

    Misconfigured network or firewall is the most typical reason for a
    problem. The output from the following commands might help to solve
    your problem:

    ifconfig

    netstat -r

    ipfw show


    Sergei Guest

  6. #6

    Default Re: 5.3 not accepting connections - What I'm missing?

    On Sat, 9 Apr 2005 18:18:31 -0700, Sergei Gnezdov
    <net> wrote: 

    I've ran the commands, but I can't see anything strange. Here is the output:

    ------------------------

    buda# ifconfig
    lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
    inet 127.0.0.1 netmask 0xff000000
    ed1: flags=108843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAS T> mtu 1500
    inet 192.168.1.100 netmask 0xffffff00 broadcast 192.168.1.255
    ether 01:d4:ff:03:00:20
    buda# netstat -r
    Routing tables

    Internet:
    Destination Gateway Flags Refs Use Netif Expire
    default mafalda.lcd.efn.un UGS 0 1694 ed1
    localhost.lcd.efn. localhost.lcd.efn. UH 0 0 lo0
    192.168.1 link#2 UC 0 0 ed1
    mafalda.lcd.efn.un 00:e0:81:29:a6:7c UHLW 1 0 ed1 1200
    buda# ipfw show
    ipfw: getsockopt(IP_FW_GET): Protocol not available

    ------------------------

    The strange thing is that I didn't enable any kind of filtering and
    also I can connect to others computers of my office LAN
    and surf the web.

    The problem is when I try to connect from other hosts to my computer.
    It ends with a timeout.

    Thank you,

    MX
    Maximiliano Guest

Similar Threads

  1. Server not accepting connections
    By scr in forum Macromedia Contribute Connection Administrtion
    Replies: 1
    Last Post: March 24th, 05:52 AM
  2. Not accepting connections
    By sparkelements in forum Macromedia Contribute Connection Administrtion
    Replies: 18
    Last Post: July 13th, 09:21 PM
  3. Server is Down, not accepting connections ..
    By Joe Wood in forum Macromedia Contribute General Discussion
    Replies: 4
    Last Post: May 12th, 03:49 AM
  4. Replies: 6
    Last Post: July 23rd, 08:50 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139