Search:

Type: Posts; User: clearski; Keyword(s):

Page 1 of 5 1 2 3 4

Search: Search took 0.01 seconds.

  1. Replies
    0
    Views
    513

    Logjam SSL vulnerability!

    FYI: http://thehackernews.com/2015/05/logjan-ssl-vulnerability.html

    Test your browsers here: https://weakdh.org/

    Test and eventually strengthen your servers by following this guide:...
  2. Replies
    44
    Views
    1,612

    [ubuntu] Re: can ping but cannot access internet

    I'm wondering if a non-Debian distribution would work... if you have some time to spare, it might be worth trying, just to make sure the hardware is fine.
  3. Replies
    44
    Views
    1,612

    [ubuntu] Re: can ping but cannot access internet

    I'm not an expert, but it looks like a software issue to me. You got quite a few errors in the dmesg output.

    Is it how you got your device or did you (re)install the OS?
  4. Replies
    44
    Views
    1,612

    [ubuntu] Re: can ping but cannot access internet

    For some reason, output packets are being dropped:

    >ifconfig
    eth0 Link encap:Ethernet {...}
    RX packets:19778 errors:0 dropped:0 overruns:0 frame:0

    TX packets:3943 errors:0 dropped:47...
  5. Replies
    44
    Views
    1,612

    [ubuntu] Re: can ping but cannot access internet

    That's great! The pings to remote networks work. Are you able to access the Internet (external sites) using a browser or your email client?
  6. Replies
    44
    Views
    1,612

    [ubuntu] Re: can ping but cannot access internet

    Could you please post the output of the ping www.cnn.com command when using Ethernet? The pings to 127.0.1.1 and 192.168.0.1 only show that you have local host and local network IP connectivity.
  7. Replies
    44
    Views
    1,612

    [ubuntu] Re: can ping but cannot access internet

    Hi.

    Can you post the details of your /etc/network/interfaces file?

    My first thought is that you don't have a DNS server to resolve the domain names, I don't understand how you can ping...
  8. [ubuntu] Re: Unexplained TCP behavior - Ubuntu 13.10 and Ubuntu 12.04 LTS

    Why do you say that an ACK should be sent for unaccepted numbers? Even in figure 11 of the RFC 793 (posted below), client A doesn't reply with an ACK to server B, which continues to request data...
  9. [ubuntu] Re: ufw log getting spammed with 224.0.0.1 every 3 minutes - how disable?

    Same here. My ISP is using an address from the 10.0.0.0/8 range. When I connect using PPPoE, they automatically assign me a routable IP address.

    The queries in your logs show both link local...
  10. Replies
    0
    Views
    708

    [ubuntu] how to disable IPv6 dynamic link local

    I am trying to configure a host using dual stack (IPv4 and IPv6).

    I setup a static IPv6 address in /etc/network/interfaces:


    iface eth0 inet6 static
    address fe80:a:a:1::2
    ...
  11. [ubuntu] Re: ufw log getting spammed with 224.0.0.1 every 3 minutes - how disable?

    Hello, Doug!

    Since the multicast range 224.0.0.0 - 224.0.0.255 is reserved for local link addresses, what's the relationship between the IP address on the router's interface to your provider and...
  12. [ubuntu] Re: setting up a router, advices needed with regards to security

    I am trying to insert some load connection-tracking module statements into a IP tables script.


    $MODPROBE ip_conntrack
    $MODPROBE iptable_nat

    I checked to see if both modules are available:
    ...
  13. [ubuntu] Re: ufw log getting spammed with 224.0.0.1 every 3 minutes - how disable?

    Initially, I just blocked the traffic from being recorded in the firewall log file. Yesterday, after a few months, I removed the rule which blocked the multicast frames / datagrams to reach the...
  14. [ubuntu] Re: ufw log getting spammed with 224.0.0.1 every 3 minutes - how disable?

    Based on your network topology, I think you can find out who's the sender.

    First of all, just erase the ufw rule which is now blocking the multicasts and reload the firewall on your host.

    Then...
  15. Replies
    1
    Views
    258

    [ubuntu] Re: Routing established the wrong way

    According to the routing table, the only way you can forward packets beyond your local network segment is through 192.168.1.1 on wlan0 interface.


    0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 wlan0
    ...
  16. [ubuntu] Re: setting up a router, advices needed with regards to security

    I'm sorry for the late answer.

    I have to say that it's the first time when pfSense came to my ears. Right now I am more interested in having less than pfSense offers, because I want to do things...
  17. [ubuntu] Re: setting up a router, advices needed with regards to security

    I cooled down a little bit, I think ssh is pretty secure in my case. I'm using public keys authentication everywhere with the keys stored in encrypted directories on each host (end devices only). I...
  18. [ubuntu] Re: setting up a router, advices needed with regards to security

    Hi, Ian!

    Thank you for your answer.



    I not a fan keeping all the eggs into the same nest, too, but I've only have two hosts here, besides the VMs I'm using to test different configurations....
  19. [ubuntu] setting up a router, advices needed with regards to security

    Hello, everyone.

    I am going to replace my ISR soon. The new router at the edge of my LAN will be a host running Ubuntu 14.04 server. The WAN face of the router will not offer any services, that is...
  20. [SOLVED] Re: looking for 1000Base-T NIC recommendations

    I purchased a few Edimax NICs:

    http://www.edimax.com/en/produce_detail.php?pd_id=291&pl1_id=2&pl2_id=9

    No drivers needed (Ubuntu 14.04), no trouble, just plugged the cards into the slots and...
  21. [ubuntu] Re: How to check the identity of a SSH Server

    Host (server) keys are one thing, user keys are another.

    First, make sure you have


    RSAAuthentication yes

    in your /etc/ssh/ssh_config on the client machine.

    Then:
  22. [SOLVED] looking for 1000Base-T NIC recommendations

    Hi, everyone.

    I am looking for a 1000Base-T NIC to use with one of my Ubuntu hosts which already has a built-in Gb physical interface.

    Is adding a new NIC a plug-and-play operation on Ubuntu or...
  23. Replies
    0
    Views
    665

    [ubuntu] rsyslog error after update

    Hi, everyone!

    I've updated one of my systems last night (Ubuntu 12.04.4 LTS (GNU/Linux 3.8.0-35-generic i686)), but the installer returned an error at the end. The system was working fine and is...
  24. Re: How to find out which process is using a port

    Habitual,

    great script. I added it to my alias file, after I shortened the alias from 6 to 2 letters: op. It's faster. :smile:

    Thanks for sharing it!
  25. Re: SSH Server unexpectedly closed network connection

    Try


    ssh -vvv host-server

    from a host client inside the LAN. It should print some info about the server's reason to reject your connection.
Results 1 to 25 of 122
Page 1 of 5 1 2 3 4