====== Web Server ======
Our front-facing public webserver. You're literally connected to this server right now, as you're on our wiki.

===== Host Information =====
  * IP: 128.205.44.157
  * IP: 192.168.0.21 ([Red Team Network](/cdr/networks/blue_red))
  * Reverse DNS: net-def.cse.buffalo.edu
  * vCenter Cluster: MAIN
  * vCenter Datastore: [cdr-iscsi1](/cdr/servers/cdr-iscsi1)

===== Access Control =====
Access to this server is controlled via our [central authentication server](master).

===== Firewall Rules =====
As this machine is dual-homed, we have additional firewall rules on it.  Below is the (saved) IPTables rules.

<file conf /etc/iptables/rules.v4>
# Generated by iptables-save v1.4.21 on Mon Feb 19 17:37:45 2018
*filter
:INPUT DROP [15:1067]
:FORWARD ACCEPT [0:0]
:OUTPUT DROP [0:0]
:fail2ban-ssh - [0:0]
-A INPUT -p tcp -m multiport --dports 22 -j fail2ban-ssh
-A INPUT -i lo -j ACCEPT
-A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 80 -j ACCEPT
-A INPUT -p udp -m udp --dport 123 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 443 -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A OUTPUT -o lo -j ACCEPT
-A OUTPUT -d 128.205.32.55/32 -p tcp -m tcp --dport 25 -j ACCEPT
-A OUTPUT -p tcp -m tcp --dport 53 -j ACCEPT
-A OUTPUT -p udp -m udp --dport 53 -j ACCEPT
-A OUTPUT -p tcp -m tcp --dport 80 -j ACCEPT
-A OUTPUT -p udp -m udp --dport 123 -j ACCEPT
-A OUTPUT -p tcp -m tcp --dport 443 -j ACCEPT
-A OUTPUT -d 192.168.0.50/32 -j ACCEPT
-A OUTPUT -d 128.205.44.172/32 -p udp -m udp --dport 1514 -j ACCEPT
-A OUTPUT -d 128.205.44.172/32 -p tcp -m tcp --dport 80 -j ACCEPT
-A OUTPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A OUTPUT -d 192.168.15.200/32 -p tcp -m tcp --dport 8080 -j ACCEPT
-A OUTPUT -d 192.168.13.138/32 -p tcp -m tcp --dport 22 -j ACCEPT
-A fail2ban-ssh -j RETURN
COMMIT
# Completed on Mon Feb 19 17:37:45 2018
</file>

===== Notes =====
[fail2ban](https://www.fail2ban.org/wiki/index.php/Main_Page) is installed, protecting against SSH bruteforce attacks.  Don't mess up a login multiple times, as your IP will be banned.