Differences

This shows you the differences between two versions of the page.

--- cdr:vms:web-server [2017/03/24 05:23]
jamesdro maga
+++ cdr:vms:web-server [2018/03/12 06:54] (current)
jamesdro Updating firewall rules
@@ Line 1: / Line 1: @@
-====== ubnetdef ======
+====== 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: UBNetDef / LEGACY
+  * vCenter Cluster: MAIN
-  * vCenter Datastore: [cdr-iscsi2](/cdr/servers/cdr-iscsi2)
+  * vCenter Datastore: [cdr-iscsi1](/cdr/servers/cdr-iscsi1)
 ===== Access Control =====
-Accounts on this machine is manually controlled.
+Access to this server is controlled via our [central authentication server](master).
-===== Notes =====
+===== 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.