</> Live-CodeLive code Mauer, Tor und State TableWall, gate and state table · kein Video: 617 KB JavaScript rechnen jedes Bild live in deinem Browsernot a video: 617 KB of JavaScript compute every frame live in your browser · Als ganze Seite öffnenOpen full page
Network Engineer · Track 07
Firewall State Table
Samuel Heinrich
TextLyrics
Intro
Session open.
State is known.
Every packet
stands alone.
Verse
Default deny in the security zone,
policy chain decides what can be known.
Source and destination, port and state,
one wrong packet hits the gate.
T-C-P handshake, sequence aligned,
U-D-P moving with no reply.
Policy checks what rules allow,
state table decides right now.
Pre-Hook
Source NAT hides the inside name.
Destination NAT redirects the frame.
Deep inspection reads what flows,
permit or deny, the firewall knows.
Hook
Drop it.
Log it.
Block it.
State table lock it.
Drop it.
Log it.
Block it.
Packet hit, stop it.
Drop it.
Log it.
Block it.
No match, knock it.
Drop it.
Log it.
Block it.
Write the rule and lock it.
Chorus
Trust no packet in the night,
least privilege, hold the line.
Source to destination,
port to application,
every session leaves a sign.
Verse 2
A-C-L cuts through the stream,
NAT reflection bends the scene.
Inside local, outside global,
translation keeps the traffic mobile.
Deep packet inspection in the flow,
headers high and payload low.
Match the rule, confirm the state,
permit clean or close the gate.
Break
SYN.
ACK.
Session match.
Deny.
Permit.
Log.
Source NAT.
Destination NAT.
T-C-P.
U-D-P.
Final Hook
Drop it.
Log it.
Block it.
State table lock it.
Drop it.
Log it.
Block it.
Packet hit, stop it.
Drop it.
Log it.
Block it.
No match, knock it.
Drop it.
Log it.
Block it.
Write the rule and lock it.
AudioanalyseAudio analysis
