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TCP echo TLS client/server

#include <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <unistd.h>
#include <openssl/ssl.h>

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gcc: the order of -l options

a.c:

#include <openssl/ssl.h>
int main(int argc, char **argv) {
    SSL_CTX *ssl_server_ctx = SSL_CTX_new(TLS_server_method());
    return ssl_server_ctx ? EXIT_SUCCESS : EXIT_FAILURE;
}

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TCP echo client/server

#include <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <unistd.h>
#include <string.h>

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redis + hitch

main.tf:

provider "google" {
  project = "PROJECT_ID"
}

resource "google_compute_instance" "test-redis" {

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redis + spiped

main.tf:

provider "google" {
  project = "PROJECT_ID"
}

resource "google_compute_instance" "test-redis" {

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redis + stunnel (SSL + verify)

main.tf:

provider "google" {
  project = "PROJECT_ID"
}

resource "google_compute_instance" "test-redis" {

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redis + stunnel (SSL + verify)

main.tf:

provider "google" {
  project = "PROJECT_ID"
}

resource "google_compute_instance" "test-redis" {

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redis + stunnel (SSL)

main.tf:

provider "google" {
  project = "PROJECT_ID"
}

resource "google_compute_instance" "test-redis" {

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redis upgrade

$ curl -sS https://raw.githubusercontent.com/redis/redis/5.0/redis.conf -o redis5.conf
$ curl -sS https://raw.githubusercontent.com/redis/redis/7.2/redis.conf -o redis7.conf

$ docker run --rm -it \
  -v "$PWD/redis5.conf:/etc/redis.conf" \
  -v redis:/data \
  redis:5.0.14-alpine3.16 redis-server /etc/redis.conf

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redis replication

docker-compose.yml:

services:
  master:
    image: redis:5.0.14-alpine3.16
    command: redis-server /etc/redis.conf
    volumes: