diff --git a/course/content/operating-systems/linux/monitoring/disk/.test/app_logger_disk.sh b/course/content/operating-systems/linux/monitoring/disk/.test/app_logger_disk.sh index cebd950..45baf0e 100644 --- a/course/content/operating-systems/linux/monitoring/disk/.test/app_logger_disk.sh +++ b/course/content/operating-systems/linux/monitoring/disk/.test/app_logger_disk.sh @@ -12,15 +12,9 @@ FILE_SIZE_MB=1 # Create large files for i in $(seq 1 $NUM_FILES); do - TIME=$(date +%YYYY%m%d%H%M%s%N) + TIME=$(date +%Y%m%d%H%M%s%N) mkdir -p "$TARGET_DIR/$TIME" dd if=/dev/zero of="$TARGET_DIR/$TIME/app_${i}.log" bs=1M count=$FILE_SIZE_MB done -# Wait for all background processes to finish -wait - -#give time to troubleshoot -sleep 60 - echo "Disk usage simulation complete. Large files created in $TARGET_DIR." \ No newline at end of file diff --git a/course/content/operating-systems/linux/monitoring/network/network.drawio.svg b/course/content/operating-systems/linux/monitoring/network/network.drawio.svg index fc99c9e..5628d15 100644 --- a/course/content/operating-systems/linux/monitoring/network/network.drawio.svg +++ b/course/content/operating-systems/linux/monitoring/network/network.drawio.svg @@ -1,4 +1,4 @@ -

* [IP]:[PORT] 
* 10.0.0.4:1024
Basic NETWORK flow
CLIENT

SERVER


* [IP]:[PORT] 
* 10.0.0.4:443

* [PUBLIC IP]:[PORT]
* 144.0.1.2:1024
* NETWORK DEVICE

* [PUBLIC IP]:[PORT]
* 143.0.1.2:443
* NETWORK DEVICE
ROUTER\MODEM\LOAD BALANCER\GATEWAY
(controls inbound\outbound traffic)
PROCESS
PROCESS
⚙️
⚙️
private network
private network
browser (or program)
STEP 1 
create TCP request
STEP 2 
client sends TCP packet to server
web server or any process
(listening on port 443)
STEP 3 
server processes request
generates TCP response
\ No newline at end of file +
10.0.0.4:1024
10.0.0.4:1024
Basic NETWORK flow
Basic NETWORK flow
CLIENT
CLIENT

SERVER

SERVER
10.0.0.4:443
10.0.0.4:443
144.0.1.2:1024

144.0.1.2:1024

143.0.1.2:443

143.0.1.2:443...
ROUTER\MODEM\LOAD BALANCER\GATEWAY
(controls inbound\outbound traffic)
ROUTER\MODEM\LOAD BALANCER\GATEWAY...
PROCESS
PROCESS
PROCESS
PROCESS
⚙️
⚙️
⚙️
⚙️
private network
private network
private network
private network
browser (or program)
browser (or program)
STEP 1 
create TCP request
STEP 1...
STEP 2 
client sends TCP packet to server
STEP 2...
web server or any process
(listening on port 443)
web server or any process...
STEP 3 
server processes request
generates TCP response
STEP 3...
network device
network dev...
network device
network dev...
<public-ip> : <port>
<public-ip> : <...
<private-ip> : <port>
<private-ip> : <...
<private-ip> : <port>
<private-ip> : <...
\ No newline at end of file