Tag Archives: linux

Unifi USG Radius default vlan

2022-06-22 iiidefix

on USG

/config/scripts/post-config.d/radius_default_vlan.sh

#!/bin/bash
# radius_default_vlan.sh
# This script goes in /config/scripts/post-config.d


if [[ -z "$1" ]] ; then
	echo "* * * * * root /config/scripts/post-config.d/radius_default_vlan.sh cron" > /etc/cron.d/radius_default_vlan
	exit 0
fi



if grep -q "DEFAULT Auth-Type" "/etc/freeradius/users" ; then
	exit 0
fi

cat >> /etc/freeradius/users <<EOF

DEFAULT Auth-Type := Accept
	Tunnel-Type             = 13,
	Tunnel-Medium-Type      = 6,
	Tunnel-Private-Group-Id = 1

EOF

service freeradius restart

install

chmod +x /config/scripts/post-config.d/radius_default_vlan.sh
/config/scripts/post-config.d/radius_default_vlan.sh

remove

rm /etc/cron.d/radius_default_vlan
rm /config/scripts/post-config.d/radius_default_vlan.sh

howto

UTF encoding

2017-07-23 iiidefix

Code point range		UTF-8			UTF-16
hexadecimal	binary	Bytes (code bits)	binary	hexadecimal	Bytes (code bits)	binary	hexadecimal
`00 00 00` — `00 00 7F`	`0000 0000 0000 0000 0000 0000` — `0000 0000 0000 0000 0111 1111`	1 (7)	`0xxx xxxx`	`00` — `7F`	2 (16)	`xxxx xxxx xxxx xxxx`	`00` `00` — `FF` `FF`
`00 00 80` — `00 07 FF`	`0000 0000 0000 0000 1000 0000` — `0000 0000 0000 0111 1111 1111`	2 (11)	`110x xxxx` `10xx xxxx`	`C2` `80` — `DF` `BF`
`00 08 00` — `00 FF FF`	`0000 0000 0000 1000 0000 0000` — `0000 0000 1111 1111 1111 1111`	3 (16)	`1110 xxxx` `10xx xxxx` `10xx xxxx`	`E0` `A0` `80` — `EF` `BF` `BF`
`01 00 00` — `10 FF FF`	`0000 0001 0000 0000 0000 0000` — `0001 0000 1111 1111 1111 1111`	4 (21)	`1111 0xxx` `10xx xxxx` `10xx xxxx` `10xx xxxx`	`F0` `90` `80` `80` — `F4` `8F` `BF` `BF`	4 (20)	`1101 10xx xxxx xxxx` `1101 11xx xxxx xxxx`	`D8` `00` `DC` `00` — `DB` `FF` `DF` `FF`

howto

Test Jumbo Frames / MTU 9000

2017-06-17 iiidefix

Linux:

ping -M do -s 8972 xxx.xxx.xxx.xxx

OSX/BSD:

ping -D -s 8184 xxx.xxx.xxx.xxx

Windows:

ping -f -l 9000 xxx.xxx.xxx.xxx

Example results on Linux

If you’ve forgotten to enable jumbo frames/9k MTU on your client device you’re sending the ping from:

PING xxx.xxx.xxx.xxx (xxx.xxx.xxx.xxx): 8184 data bytes
ping: sendto: Message too long

If you have enabled jumbo frames on your client but not the destination (or a switch in between):

PING xxx.xxx.xxx.xxx (xxx.xxx.xxx.xxx): 8184 data bytes
Request timeout for icmp_seq 0

If you’ve done everything righ:

PING xxx.xxx.xxx.xxx (xxx.xxx.xxx.xxx): 8184 data bytes
8192 bytes from xxx.xxx.xxx.xxx: icmp_seq=0 ttl=128 time=0.714 ms

snippet

WebDAV with cURL

2016-07-06 iiidefix

Assuming the following Data:

Webdav URL: http://example.com/webdav
Username: user
Password: pass

Actions

Reading Files/Folders

curl 'http://example.com/webdav'

Creating new Folder

curl -X MKCOL 'http://example.com/webdav/new_folder'

Uploading File

curl -T '/path/to/local/file.txt' 'http://example.com/webdav/test/new_name.txt'

Renaming File

curl -X MOVE --header 'Destination:http://example.org/webdav/new.txt' 'http://example.com/webdav/old.txt'

Deleting Files/Folders

File:

curl -X DELETE 'http://example.com/webdav/test.txt'

Folder:

curl -X DELETE 'http://example.com/webdav/test'

List Files in a Folder

curl -i -X PROPFIND http://example.com/webdav/ --upload-file - -H "Depth: 1" <<end
<?xml version="1.0"?>
<a:propfind xmlns:a="DAV:">
<a:prop><a:resourcetype/></a:prop>
</a:propfind>
end

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