Skip to main content

Deny inbound UDP from x.x.x.x/highport to x.x.x.x/53 due to DNS Query

Where to begin with this travesty... had to switch from AT&T to Verizon so that I could use tethering at the office I work at.. and "so it begins..."

I have a Samsung SCS-SU01 which Verizon provided because I have essentially no service in my home.  When I attempted to configure/enable the device it was responding rather strange.  Specifically the GPS indicator would not change to "blue" - indicating it could not get GPS?  Anyhow, that was NOT the case, the transponder was outside via the extender cable with a clear line of sight to the sky.

I loaded my ASDM to see if I could tell what was going on and noticed


# Deny inbound UDP from x.x.x.x/highport to x.x.x.x/53 due to DNS Query
which seemed very odd since my DNS server is on the same subnet as my VZW device.

Applied the following rule and the DNS issue went away.
same-security-traffic permit  intra-interface

Now... I need to allow IPsec-passthru (I think?)

Cisco ASA 5505
Samsung SCS-SU01 - Verizon network extender




Comments

  1. AnonymousApril 20, 2022 at 6:35 AM

    Deny Inbound Udp From X.X.X.X/Highport To X.X.X.X/53 Due To Dns Query >>>>> Download Now

    >>>>> Download Full

    Deny Inbound Udp From X.X.X.X/Highport To X.X.X.X/53 Due To Dns Query >>>>> Download LINK

    >>>>> Download Now

    Deny Inbound Udp From X.X.X.X/Highport To X.X.X.X/53 Due To Dns Query >>>>> Download Full

    >>>>> Download LINK Ir

    ReplyDelete

Post a Comment

Popular posts from this blog

PXE boot a LiveCD image

Summary: I have wanted to build a kickstart environment which hosted a "rescue CD" or LiveCD to allow you to boot over the network after you blew your stuff up and needed to repair a few things.  Today I have worked through a method of doing so, with the help of the people who published a succinct script with the Red Hat Enterprise Virtualization Hypervisor.  (the script will be at the bottom of this post - if I have somehow not followed the GPL, please let me know and I will correct whatever is necessary) NOTE/Warning: The boot will fail due the initrd being too large (645mb).  I'm not sure how to proceed.  This procedure worked for RHEVh, because it is quite a bit smaller.  Hopefully I can report back with progress on this? :-$ Procedure: download your LiveCD image to /export/isos/RESCUE/Fedora-16-i686-Live-Desktop.iso # cd /var/tmp # vi livecd-iso-to-pxeboot (populate the file with the script shown below) # chmod 754 ./livecd-iso-to-pxeb...
2 comments
Read more

"Error getting authority: Error initializing authority: Could not connect: No such file or directory (g-io-error-quark, 1)"

"Error getting authority: Error initializing authority: Could not connect: No such file or directory (g-io-error-quark, 1)" One issue that may cause this to arise is if you managed to break your /etc/fstab We had an engineer add a line with the intended options of "nfsvers=3" but instead added "-onfsvers=3" and it broke the system fairly catastrophically.
Post a Comment
Read more

MOTD with colors! (also applies to shell profiles)

I'm not sure why I had never looked into this before, but this evening I became obsessed with discovering how to present different colored text in the /etc/motd. A person had suggested creating a shell script (rather than using special editing modes in vi, or something) and I agree that is the simplest way of getting this accomplished quickly. This most noteworthy portion of this script is the following: RESET="\033[0m" that puts the users shell back to the original color. I typically like a green text on black background. Also - a great reference for the different colors and font-type (underscore, etc...) https://wiki.archlinux.org/index.php/Color_Bash_Prompt I found this example on the web and I wish I could recall where so that I could provide credit to that person. #!/bin/bash #define the filename to use as output motd="/etc/motd" # Collect useful information about your system # $USER is automatically defined HOSTNAME=`uname -n` KERNEL=`un...
1 comment
Read more