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====== Configuring GUI, SSG, and WiFi HotSpot with Session Management Enabled ======
===== Network Topology =====
  - Connect the equipment according to the network topology.\\ {{ :dpi:dpi_options:use_cases:img1.jpg?nolink&700 |}}

===== Authorization Sequence =====
  - The subscriber connects to the WiFi network
  - A welcome page appears informing the subscriber to open a browser and identify themselves
  - The subscriber opens a browser, and upon navigating to any URL, they are redirected to the identification page
  - The subscriber enters their phone number and requests an access code
  - The access code is sent to the phone number via SMS
  - The subscriber enters the received access code
  - Session cookies are recorded on the subscriber's device for a specified period, and the subscriber is redirected to the requested URL

===== Setting Up Virtual Machines (VM) =====
  - Create two virtual machines with the following minimum specifications:
    * VM ''dpiui_vm'' – [[en:dpi:dpi_components:dpiui:install_and_update:hardware_recommendations]]
    * VM ''cp_wifi_vm'' – [[en:dpi:dpi_components:module_wi-fi_hotspot#hardware_recommendations|Equipment prerequisites]]
  - Install the OS on both virtual machines. Choose minimal installation during setup.\\ After OS installation, open the console and install packages on both VMs: first <code bash>yum install epel-release</code> and then: <code bash>yum install nano tcpdump openssh-server openssh-clients</code>
  - Disable SELinux on both VMs:
    * Edit the file ''/etc/sysconfig/selinux''
    * Set the parameter ''SELINUX=disabled'' and reboot the VM

===== Installing and Configuring dpiui_vm =====
  - Install DPIUI on ''dpiui_vm'' following the [[en:dpi:dpi_components:dpiui:install_and_update:install|instructions]]
  - Configure the network on both VMs and SSG:<code bash>BOOTPROTO=static
ONBOOT=yes
IPADDR=10.0.0.x
NETMASK=255.255.255.0
GATEWAY=10.0.0.1
DNS1=10.0.0.2</code> ''IPADDR'' — specify for each host according to the scheme (or use your own addressing).
  - Log in to the GUI and add both VMs and SSG in the "EQUIPMENT" section, following the [[en:dpi:dpi_components:dpiui:user_guide:admin_section:equipment_management|instructions]]:

===== Installing and Configuring cp_wifi_vm =====
  - Install the ''wifi_hotspot'' package on the ''cp_wifi_vm'' VM following the [[en:dpi:dpi_components:module_wi-fi_hotspot|instructions]]:
  - Edit the configuration file for Hotspot:<code bash>nano /var/www/html/wifi_hotspot/backend/.env</code> Change/add only these lines:
    - **''AAA_HOTSPOT_IP – 10.0.0.4''**\\ NAS server address, IPv4/IPv6, if unknown — 0.0.0.0
    - **''AAA_HOTSPOT_PORT – 0''**\\ NAS server port, number, if unknown — 0
    - **''AAA_HOTSPOT_ID – 2''**\\ Network access point ID, integer between 0 and 1000, must be filled in for public WiFi access points, corresponds to the access point ID in field 1 from the access point export
    - **''AAA_EXPORT_ENABLED=1''**\\ Enable AAA export
    - **''AUTH_CODE_LENGTH=4''**\\ Change the number of characters in the SMS authorization code

If the parameter ''AUTH_CODE_LENGTH'' is set, then in the file ''/var/www/html/wifi_hotspot/frontend/env.js'' set the value:<code bash>AppEnv.AuthCodePlaceHolder = "0000";</code>

Finally, run the command:<code bash>php /var/www/html/wifi_hotspot/backend/artisan queue:restart</code>

===== Installing and Configuring dhcp-isc on cp_wifi_vm =====
  - Install the ''dhcp-isc'' package: <code bash>yum install dhcp expect</code>
  - Configure the static ARP scripts and the ''dhcpd.conf'' configuration file:
    * First, the ''dhcpd'' configuration file: <code bash>nano /etc/dhcp/dhcpd.conf</code> Set your values for ''option domain-name'' and ''option ntp-servers''!<code bash>ddns-update-style none;
authoritative;
db-time-format local;
log-facility local7;

subnet 100.64.0.0 netmask 255.255.252.0 {
  range 100.64.0.3 100.64.3.254;
  default-lease-time 600;
  max-lease-time 600;
  option subnet-mask 255.255.252.0;
  option broadcast-address 100.64.3.255;
  option routers 100.64.0.1;
  option ntp-servers <ntp-server>;
  option domain-name-servers 10.0.0.2;
  option domain-name "name.local";

  on commit {
      set ClientIP = binary-to-ascii(10, 8, ".", leased-address);
      set ClientMac = concat (
      suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,1,1))),2), ":",
      suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,2,1))),2), ":",
      suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,3,1))),2), ":",
      suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,4,1))),2), ":",
      suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,5,1))),2), ":",
      suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,6,1))),2));
      log(concat("Request: IP: ", ClientIP, " Mac: ", ClientMac));
     
 execute("/usr/local/etc/dhcpd/clients_add_drop.sh", "add", ClientIP, ClientMac);}
  on release {
      set ClientIP = binary-to-ascii(10, 8, ".", leased-address);
      set ClientMac = concat (
      suffix (concat ("0", binary-to-ascii (16, 8, "", 
substring(hardware,1,1))),2), ":",
      suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,2,1))),2), ":",
      suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,3,1))),2), ":",
      suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,4,1))),2), ":",
      suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,5,1))),2), ":",
      suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,6,1))),2));

      log(concat("Release: IP: ", ClientIP, " Mac: ", ClientMac));
      execute("/usr/local/etc/dhcpd/clients_add_drop.sh", "drop_rls", ClientIP, ClientMac);}
  on expiry {
      set ClientIP = binary-to-ascii(10, 8, ".", leased-address);
      log(concat("Timeout: IP: ", ClientIP));
      execute("/usr/local/etc/dhcpd/clients_add_drop.sh", "drop_exp", ClientIP);}
}
subnet 10.0.0.0 netmask 255.255.255.0 {
}</code>Create directories and change their permissions:<code bash>mkdir /usr/local/etc/dhcpd/ && chown dhcpd:dhcpd /usr/local/etc/dhcpd/

touch /usr/local/etc/dhcpd/clients_add_drop_mysql.sh && touch /usr/local/etc/dhcpd/clients_add_drop.sh 
&& chown dpiacc:dpiacc /usr/local/etc/dhcpd/*

chmod 755 /usr/local/etc/dhcpd/

chmod 755 /usr/local/etc/dhcpd/*</code>Next, copy the following script to ''/usr/local/etc/dhcpd/clients_add_drop.sh'':<code bash>#!/usr/bin/expect -f

set METHOD [lindex $argv 0]
set IP_ADDR [lindex $argv 1]
set MAC_ADDR [lindex $argv 2]
set MAC_ADDR [string toupper $MAC_ADDR]
#Client interface on Mikrotik:
set INT_ClIENT "vWifi"
set status 0


#Recording dhcp-lease (start and end) in the Hotspot database
spawn /usr/local/etc/dhcpd/./clients_add_drop_mysql.sh "$METHOD" "$IP_ADDR" "$MAC_ADDR"


expect "end_mysql";


#Connecting to the router
spawn ssh -i /usr/local/etc/dhcpd/.ssh/id_rsa admin+t@100.64.0.1 -oStrictHostKeyChecking=no -oUserKnownHostsFile=/dev/null
expect {
    "password:" {send "\n";}
    "timeout" {set status 1;}
    ">" {}
}
if { $METHOD == "add" && $status == 0} {
send "ip arp add address=$IP_ADDR mac-address=$MAC_ADDR interface=$INT_ClIENT\r";
expect ">";


send "ip firewall address-list remove \[find address=$IP_ADDR list=DROP_CLIENTS\]\r";
expect ">";
send "log info \"ADD: $IP_ADDR -- $MAC_ADDR\"\r";
expect ">"
send "quit\r";
expect eof
} elseif { $METHOD == "drop_rls" && $status == 0} {
send "ip arp remove \[find mac-address=$MAC_ADDR\]\r";
expect ">";
send "ip firewall address-list add address=$IP_ADDR list=DROP_CLIENTS\r";
expect ">";
send "log info \"DROP_RLS: $IP_ADDR -- $MAC_ADDR\"\r";
expect ">"
send "quit\r";
expect eof
} elseif { $METHOD == "drop_exp" && $status == 0} {
send "ip arp remove \[find address=$IP_ADDR\]\r";
expect ">";
send "ip firewall address-list add address=$IP_ADDR list=DROP_CLIENTS\r";
expect ">";
send "log info \"DROP_EXP: $IP_ADDR\"\r";
expect ">"
send "quit\r";
expect eof
} elseif {$status == 0} {
send "quit\r";

expect eof
exit 1;
}

set status 0

#Connecting to SSG and adding static subscriber record
spawn ssh -i /usr/local/etc/dhcpd/.ssh/id_rsa dpisu@10.0.0.6 -oStrictHostKeyChecking=no -oUserKnownHostsFile=/dev/null

expect {
    "password" {send "\r"}
    "timeout" {set status 1; exit 4}
    "\$" {}
}
if {$status == 0} {
send "/var/dpiui2/add_captive_portal_auth_ivstar.sh $IP_ADDR\r"
expect "\$"
send "exit\r";
expect eof
}</code>And copy the following script to ''/usr/local/etc/dhcpd/clients_add_drop_mysql.sh'' for adding ''dhcp-lease'' data to the Hotspot database:<code bash>#!/bin/bash
METHOD=$1
IP_ADDR=$2
MAC_ADDR=$3

MYSQL_CONNECT_LEASEDB="mysql -u root -pvasexperts -Dwifi_hotspot -h 127.0.0.1"

if [ "$METHOD" = "add" ]; then
    echo "insert into hotspot_aaa(TYPE,MAC,IP) values("1",\""$MAC_ADDR"\",\""$IP_ADDR"\");" | $MYSQL_CONNECT_LEASEDB
elif
   [ "$METHOD" = "drop_rls" ]; then
    echo "insert into hotspot_aaa(TYPE,MAC,IP) values("2",\""$MAC_ADDR"\",\""$IP_ADDR"\");" | $MYSQL_CONNECT_LEASEDB

elif
   [ "$METHOD" = "drop_exp" ]; then
    echo "insert into hotspot_aaa(TYPE,MAC,IP) values("2",\"""\",\""$IP_ADDR"\");" | $MYSQL_CONNECT_LEASEDB
fi

echo "end mysql"</code>Enable the ''dhcpd'' server and add a firewall rule:<code bash>systemctl enable dhcpd
systemctl start dhcpd
firewall-cmd --permanent —add-service=dhcp
firewall-cmd --reload</code>
  - Create a script for transferring the session file to FTP:<code bash>mkdir  /srv/aaa/
mkdir  /srv/aaa/processed/
mkdir  /srv/aaa/script/
touch /srv/aaa/script/script.sh</code>Copy the content into ''/srv/aaa/script/script.sh'':<code bash>#!/bin/bash

FTP_ADDR="<ip ftp>"
FTP_USER="<user ftp>"
FTP_PASS="<password ftp>"

#Directory with AAA Hotspot
DIR="/var/www/html/wifi_hotspot/backend/storage/aaa_events"

ls $DIR | while read f; do
    curl --user $FTP_USER:$FTP_PASS --upload-file $DIR

/$f ftp://$FTP_ADDR/ISP/aaa/  > /dev/null 2>&1
    mv $DIR/$f /srv/aaa/processed</code>and add to cron:<code bash>crontab -e
*/5 * * * * /srv/aaa/script/script.sh</code>
  - Create an SSH key pair:<code bash>mkdir usr/local/etc/dhcpd/.ssh && cd usr/local/etc/dhcpd/.ssh
ssh-keygen -t rsa</code>

Leave the passphrase empty.\\ 
**Attention! Transfer id.pub to SSG (10.0.0.6) and Mikrotik (100.64.0.1)!**
  * SSG (10.0.0.6): transfer the file via SSH to SSG and add it to ''authorized_keys'' <code bash>cat id.pub >>  ~/.ssh/authorized_keys</code>
  * Mikrotik (100.64.0.1): transfer the file via SSH or through the Web interface and import it: <code bash>user ssh-keys import public-key-file=id.pub user=admin</code>

=====Configuring SSG=====
  - Configure the DB for users on SSG: <code bash>nano /etc/dpi/fastdpi.conf  
udr=1</code>
  - Set up filtering based on the federal list: <code bash>black_list_sm=0
federal_black_list=1
#redirect to page
black_list_redirect=http://block.lan/</code>
  - Set the default class: <code bash>class_order=0</code>
  - Enable IPFIX export:
    * Configure the ''eth1'' interface: ''nano /etc/sysconfig/network-scripts/ifcfg-eth1'' <code bash>BOOTPROTO=none
ONBOOT=yes
IPADDR=<ip address>
PREFIX=24</code> <code bash>netflow=8
netflow_dev=eth1
netflow_timeout=20
netflow_full_collector_type=2
netflow_full_collector=127.0.0.1:1500
netflow_passive_timeout=10
netflow_active_timeout=20
netflow_rate_limit=30
ipfix_dev=eth1

ipfix_tcp_collectors=<ip:port ipfix collectors>
ipfix_meta_tcp_collectors=<ip:port ipfix collectors>
ipfix_observation=127
ipfix_dns_tcp_collectors=<ip:port ipfix collectors>
ipfix_nat_udp_collectors=<ip:port ipfix collectors></code>
  - Minimize traffic in class 7: <code bash>tbf_class7=rate 1kbit
tbf_inbound_class7=rate 1kbit</code>
  - Enable redirect to Captive portal: ''cp_server=10.0.0.4 (ip cp)''
  - Disable NAT for private addresses: ''nat_exclude_private=1''
  - Other SSG settings: <code bash>ctrl_port=29000
ctrl_dev=lo
scale_factor=1
num_threads=2
class_order=0
mem_tracking_flow=1500000
mem_tracking_ip=3000000
http_parse_reply=1
rlimit_fsize=32000000000</code>
  - Replace the content of the script ''/var/dpiui2/add_captive_portal_auth_ivstar.sh'' with the following: <code bash>#!/bin/sh
fdpi_ctrl load --service 5 --profile.name='hotspot_white_list_profile' --ip $1
fdpi_ctrl load --service 11 --profile.name='NAT_PUBLIC_WIFI' --ip $1
fdpi_ctrl load --policing --profile.name='wifi_hotspot_auth_policing' --ip $1</code>
  - Add the public key for Hotspot access to SSG in the file ''/home/dpisu/.ssh/authorized_keys'': <code bash>#!/bin/sh
fdpi_ctrl load --service 5 --profile.name='hotspot_white_list_profile' --ip $1
fdpi_ctrl load --service 11 --profile.name='NAT_PUBLIC_WIFI' --ip $1
fdpi_ctrl load --policing --profile.name='wifi_hotspot_auth_policing' --ip $1</code>Save all changes in the file ''/etc/dpi/fastdpi.conf'' and perform a ''reboot''.
  - Configure the ''eth0'' interface for access to Hotspot and DPIUI: <code bash>nano /etc/sysconfig/network-scripts/ifcfg-eth0</code> <code bash>BOOTPROTO=none
ONBOOT=yes
IPADDR=10.0.0.6
PREFIX=24
DNS1=10.0.0.2</code>

=====Configuring DPI and Hotspot via DPIUI=====
Configuring prioritization by protocols.

1. Go to the DPI Management tab → PROTOCOL PRIORITIZATION (DSCP) → Editor
  * cs0 – what we pass through
  * cs1 – what we throttle by tariff
  * cs7 – what we globally throttle <code bash>Bittorrent cs7
default cs1
dns cs0
http cs0
https cs0</code>
2. CG-NAT on SSG:\\ Go to the Services Management tab → Services → CGNAT\\ Create a profile:\\ Description: ''NAT_WIFI''\\ Type: ''CGNAT''\\ NAT IP pool: ''<public ip>''\\ Number of TCP sessions: ''1000'' (per subscriber)\\ Number of UDP sessions: ''1000'' (per subscriber) 

**Hotspot Configuration:**
  - Go to the Services Management tab → Hotspot\\ Web server: ''WiFi-Hotspot'' (VM ''cp_wifi_vm'' previously set up in DPIUI)\\ Captive portal URL: ''https://10.0.0.4'' (cp url)\\ Session lifetime: ''36000''\\ Redirect URL: ''https://google.ru'' (redirect page after successful authorization)
  - Enable WiFi and SMS authorization\\ SMS authorization through sms.ru service:\\ Method: ''Post''\\ URL: ''https://sms.ru/sms/send''
  - Body (From): <code bash>api_id  =  <id from sms.ru personal account>
to  =  [PHONE]
msg  =  Your code for WIFI: [CODE]</code> 

**Hotspot Tariffs (in the editor):**
  - Tariff for authorization:<code bash>htb_inbound_root=rate 5mbit ceil 5mbit burst 2500kbit cburst 2500kbit
htb_inbound_class0=rate 8bit ceil  5mbit burst 8bit cburst 2500kbit
htb_inbound_class1=rate 8bit ceil  8bit burst 8bit cburst 8bit
htb_inbound_class2=rate 8bit ceil  8bit burst 8bit cburst 8bit
htb_inbound_class3=rate 8bit ceil  8bit burst 8bit cburst 8bit
htb_inbound_class4=rate 8bit ceil  8bit burst 8bit cburst 8bit
htb_inbound_class5=rate 8bit ceil  8bit burst 8bit cburst 8bit
htb_inbound_class6=rate 8bit ceil  8bit burst 8bit cburst 8bit
htb_inbound_class7=rate 8bit ceil  8bit burst 8bit cburst 8bit
htb_root=rate 100kbit ceil 100kbit burst 50kbit cburst 50kbit
htb_class0=rate 8bit ceil  100kbit burst 8bit cburst 50kbit
htb_class1=rate 8bit ceil  8bit burst 8bit cburst 8bit
htb_class2=rate 8bit ceil  8bit burst 8bit cburst 8bit
htb_class3=rate 8bit ceil  8bit burst 8bit cburst 8bit
htb_class4=rate 8bit ceil  8bit burst 8bit cburst 8bit
htb_class5=rate 8bit ceil  8bit burst 8bit cburst 8bit
htb_class6=rate 8bit ceil  8bit burst 8bit cburst 8bit
htb_class7=rate 8bit ceil  8bit burst 8bit cburst 8bit</code>
  - Tariff for free WiFi:<code bash>htb_inbound_root=rate 10mbit ceil 10mbit burst 5mbit cburst 5mbit
htb_inbound_class0=rate 8bit ceil  10mbit burst 8bit cburst 5mbit
htb_inbound_class1=rate 8bit ceil  10mbit burst 8bit cburst 5mbit
htb_inbound_class2=rate 8bit ceil  10mbit burst 8bit cburst 5mbit
htb_inbound_class3=rate 8bit ceil  10mbit burst 8bit cburst 5mbit
htb_inbound_class4=rate 8bit ceil  10mbit burst 8bit cburst 5mbit
htb_inbound_class5=rate 8bit ceil  10mbit burst 8bit cburst 5mbit
htb_inbound_class6=rate 8bit ceil  10mbit burst 8bit cburst 5mbit
htb_inbound_class7=rate 8bit ceil  8bit burst 8bit cburst 8bit
htb_root=rate 10mbit ceil 10mbit burst 5mbit cburst 5mbit
htb_class0=rate 8bit ceil  10mbit burst 8bit cburst 5mbit
htb_class1=rate 8bit ceil  10mbit burst 8bit cburst 5mbit
htb_class2=rate 8bit ceil  10mbit burst 8bit cburst 5mbit
htb_class3=rate 8bit ceil  10mbit burst 8bit cburst 5mbit
htb_class4=rate 8bit ceil  10mbit burst 8bit cburst 5mbit
htb_class5=rate 8bit ceil  10mbit burst 8bit cburst 5mbit
htb_class6=rate 8bit ceil  10mbit burst 8bit cburst 5mbit
htb_class7=rate 8bit ceil  8bit burst 8bit cburst 8bit</code>

3. Services:\\
Go to Services Management, enable CGNAT, and select the NAT_WIFI profile.

4. Allow list:\\
Go to the Services Management tab → Services → Block lists and Allow lists.\\
Select the desired profile and create a list: ''ip 10.0.0.4 (cp ip)''\\
If there is a DNS record for CP, add it as: ''cn example.com''\\
Save settings through the interface.

=====Mikrotik Configuration (100.64.0.1)=====

  - Configure Client Interface on Mikrotik:\\ Upgrade to Router OS 6.48.x<code bash>  /interface vlan
  add arp=reply-only arp-timeout=10m interface=sfp1 name=vWifi vlan-id=40

  /ip settings
  set icmp-rate-limit=5 rp-filter=strict

  /ip address
  add address=100.64.0.1/22 interface=vWifi network=100.64.0.0

  /ip dhcp-relay
  add dhcp-server=10.0.0.4 disabled=no interface=vWifi local-address=100.64.0.1 name=relay1

  /ip dns
  set servers=10.0.0.2

  /ip route
  add distance=1 dst-address=10.0.0.4/32 gateway=<specify gateway> pref-src=100.64.0.1

  /system clock
  set time-zone-name=Europe/Moscow

  /system ntp client
  set enabled=yes primary-ntp=<specify ntp server>

  /tool bandwidth-server
  set authenticate=no enabled=no</code>
  - Configure IP Connectivity between DHCP/Hotspot and Mikrotik

=====Unifi Network Configuration=====

  - Configure Ubiquiti Access Points:
    * Install Unifi Network on the server.
    * Configure DHCP to provide settings to the access points.
    * If the access points and controller are in different subnets, specify option 43 in DHCP with the controller IP address in hex format. https://help.ui.com/hc/en-us/articles/204909754-UniFi-Device-Adoption-Methods-for-Remote-UniFi-Controllers\\ **Note:** Switch to the old interface by toggling the switch in System Settings → New USER Interface.

  - **Configure Network and Additional Settings:**
    * Go to Settings → Network\\ Create a new network with VLAN 40, name it `WiFi-Client`, set the gateway as `100.64.0.1/22`, and configure other options as desired.
    * Go to Settings → Guest Control\\ In Pre-Authorization Access, specify the IP of the Hotspot (10.0.0.4).
    * Go to Settings → Wireless Networks
      * Create a WiFi network.
      * Open ADVANCED OPTIONS.
      * Enter any name/SSID.
      * Check Enabled.
      * Check Open.
      * Check Guest Policy.
      * Select `WiFi-Client` in Network.
      * Check Block LAN to WLAN Multicast and Broadcast Data.
      * Check Allow BSS Transition with WNM.
      * Check Block Tunneled Link Direct Setup (TDLS) connections.
      * Check Isolate stations on layer 2 (ethernet) level.
    * Click Save.