Tune PostgreSQL Performance on NetBSD 10

postgresql.conf

# Memory
shared_buffers          = 2GB       # 25% of RAM
effective_cache_size    = 6GB       # 50-75% of RAM
work_mem                = 64MB      # per-sort/hash
maintenance_work_mem    = 512MB

# Checkpoints
checkpoint_completion_target =...

Tune PostgreSQL Performance on OpenBSD 7.5

postgresql.conf

# Memory
shared_buffers          = 2GB       # 25% of RAM
effective_cache_size    = 6GB       # 50-75% of RAM
work_mem                = 64MB      # per-sort/hash
maintenance_work_mem    = 512MB

# Checkpoints
checkpoint_completion_target...

Tune PostgreSQL Performance on RHEL 9

postgresql.conf

# Memory
shared_buffers          = 2GB       # 25% of RAM
effective_cache_size    = 6GB       # 50-75% of RAM
work_mem                = 64MB      # per-sort/hash
maintenance_work_mem    = 512MB

# Checkpoints
checkpoint_completion_target = 0....

Tune PostgreSQL Performance on Ubuntu 24.04

postgresql.conf

# Memory
shared_buffers          = 2GB       # 25% of RAM
effective_cache_size    = 6GB       # 50-75% of RAM
work_mem                = 64MB      # per-sort/hash
maintenance_work_mem    = 512MB

# Checkpoints
checkpoint_completion_targe...

Tune Varnish Cache on AlmaLinux 9

Systemd override (/etc/systemd/system/varnish.service.d/override.conf)

[Service]
ExecStart=
ExecStart=/usr/sbin/varnishd \
    -a :80 -T localhost:6082 \
    -f /etc/varnish/default.vcl \
    -s malloc,2G \
    -p thread_pools=2 \
    -p thread_pool_min=200 \...

Tune Varnish Cache on Arch Linux

Systemd override (/etc/systemd/system/varnish.service.d/override.conf)

[Service]
ExecStart=
ExecStart=/usr/sbin/varnishd \
    -a :80 -T localhost:6082 \
    -f /etc/varnish/default.vcl \
    -s malloc,2G \
    -p thread_pools=2 \
    -p thread_pool_min=200 \...

Tune Varnish Cache on Debian 12

Systemd override (/etc/systemd/system/varnish.service.d/override.conf)

[Service]
ExecStart=
ExecStart=/usr/sbin/varnishd \
    -a :80 -T localhost:6082 \
    -f /etc/varnish/default.vcl \
    -s malloc,2G \
    -p thread_pools=2 \
    -p thread_pool_min=200 \...

Tune Varnish Cache on Gentoo Linux

Systemd override (/etc/systemd/system/varnish.service.d/override.conf)

[Service]
ExecStart=
ExecStart=/usr/sbin/varnishd \
    -a :80 -T localhost:6082 \
    -f /etc/varnish/default.vcl \
    -s malloc,2G \
    -p thread_pools=2 \
    -p thread_pool_min=200 \...

Tune Varnish Cache on NetBSD 10

Systemd override (/etc/systemd/system/varnish.service.d/override.conf)

[Service]
ExecStart=
ExecStart=/usr/sbin/varnishd \
    -a :80 -T localhost:6082 \
    -f /etc/varnish/default.vcl \
    -s malloc,2G \
    -p thread_pools=2 \
    -p thread_pool_min=200 \...

Tune Varnish Cache on OpenBSD 7.5

Systemd override (/etc/systemd/system/varnish.service.d/override.conf)

[Service]
ExecStart=
ExecStart=/usr/sbin/varnishd \
    -a :80 -T localhost:6082 \
    -f /etc/varnish/default.vcl \
    -s malloc,2G \
    -p thread_pools=2 \
    -p thread_pool_min=200 \...

Tune Varnish Cache on RHEL 9

Systemd override (/etc/systemd/system/varnish.service.d/override.conf)

[Service]
ExecStart=
ExecStart=/usr/sbin/varnishd \
    -a :80 -T localhost:6082 \
    -f /etc/varnish/default.vcl \
    -s malloc,2G \
    -p thread_pools=2 \
    -p thread_pool_min=200 \
    -...

Tune Varnish Cache on Ubuntu 24.04

Systemd override (/etc/systemd/system/varnish.service.d/override.conf)

[Service]
ExecStart=
ExecStart=/usr/sbin/varnishd \
    -a :80 -T localhost:6082 \
    -f /etc/varnish/default.vcl \
    -s malloc,2G \
    -p thread_pools=2 \
    -p thread_pool_min=200 \...

Install Varnish, write VCL rules and tune the cache for maximum throughput.

Varnish VCL Configuration on AlmaLinux 9

Full example with load balancing and grace

vcl 4.1;
import directors;

backend web1 {
    .host = "192.168.1.10"; .port = "8080";
    .probe = { .url = "/health"; .timeout = 5s; .interval = 10s; .window = 5; .threshold = 3; }
}
backend web2 {
    .host =...

Varnish VCL Configuration on Arch Linux

Full example with load balancing and grace

vcl 4.1;
import directors;

backend web1 {
    .host = "192.168.1.10"; .port = "8080";
    .probe = { .url = "/health"; .timeout = 5s; .interval = 10s; .window = 5; .threshold = 3; }
}
backend web2 {
    .host = "...

Varnish VCL Configuration on Debian 12

Full example with load balancing and grace

vcl 4.1;
import directors;

backend web1 {
    .host = "192.168.1.10"; .port = "8080";
    .probe = { .url = "/health"; .timeout = 5s; .interval = 10s; .window = 5; .threshold = 3; }
}
backend web2 {
    .host = "1...

Varnish VCL Configuration on Gentoo Linux

Full example with load balancing and grace

vcl 4.1;
import directors;

backend web1 {
    .host = "192.168.1.10"; .port = "8080";
    .probe = { .url = "/health"; .timeout = 5s; .interval = 10s; .window = 5; .threshold = 3; }
}
backend web2 {
    .host =...

Varnish VCL Configuration on NetBSD 10

Full example with load balancing and grace

vcl 4.1;
import directors;

backend web1 {
    .host = "192.168.1.10"; .port = "8080";
    .probe = { .url = "/health"; .timeout = 5s; .interval = 10s; .window = 5; .threshold = 3; }
}
backend web2 {
    .host = "1...

Varnish VCL Configuration on OpenBSD 7.5

Full example with load balancing and grace

vcl 4.1;
import directors;

backend web1 {
    .host = "192.168.1.10"; .port = "8080";
    .probe = { .url = "/health"; .timeout = 5s; .interval = 10s; .window = 5; .threshold = 3; }
}
backend web2 {
    .host =...

Varnish VCL Configuration on RHEL 9

Full example with load balancing and grace

vcl 4.1;
import directors;

backend web1 {
    .host = "192.168.1.10"; .port = "8080";
    .probe = { .url = "/health"; .timeout = 5s; .interval = 10s; .window = 5; .threshold = 3; }
}
backend web2 {
    .host = "192....

Varnish VCL Configuration on Ubuntu 24.04

Full example with load balancing and grace

vcl 4.1;
import directors;

backend web1 {
    .host = "192.168.1.10"; .port = "8080";
    .probe = { .url = "/health"; .timeout = 5s; .interval = 10s; .window = 5; .threshold = 3; }
}
backend web2 {
    .host =...

First define virtual path called virtualfolder. It can be any name actually. Then define subfilter what replaces slash with virtualfolder name.

location /virtualfolder/ {

        sub_filter "/" "/virtualfolder/";
}

Any url in location will become /virtualfolder/

Install vsftpd

SSH to your EC2 server. Type:

sudo yum install vsftpd

Open up the FTP ports on your EC2 instance

Next, you'll need to open up the FTP ports on your EC2 server. Log in to the AWS EC2 Management Console and select Security Groups from the navigation tree on the left. Selec...