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Like my Rulz post, I will maintain this for the foreseeable future. Feel free to PM me or post here with suggestions for additions, corrections, improvements, etc.
Delete Up2Date Packages to Free-up Space in the root directoryLog names and service locationsMxToolbox Email Blacklist Checkhttp://centralops.net/co/DomainDossier.aspxnamebench - Open-source DNS Benchmark UtilitySophos Firewall: How to re-image the applianceUTM HCLhttp://www.tamos.com/products/throughput-test/Free Essentials LicenseIdeasTrustedSource - Check Single URLRulz (last updated 2019-04-17) Also see Doug Foster's take on some of this: READ ME FIRST: UTM ArchitectureSophos UTM: How to recover access in the event of password lossSave a cert chain for WebAdmin/User Portal that has an intermediate certhttp://sophostest.com/Retirement calendar for Sophos UTM & XGReboot Sophos RouterASG 425 Display with homelicense*Unofficial* Hardware Compatibility List (HCL)UTM Support Downloadsversion change trickDouglas Foster’s ideas about working through the The Great Firewall of China
DNS best practiceBlock a TLDDisable root hints
Packetfilter logfiles on the Sophos UTMV9 IPS Rulespersistent changes to packetfilter timeouts
Accessing Internal or DMZ Webserver from Internal Network
Understanding QOS for SIP VOIP on the Sophos UTM
Auto Configuring Proxy SettingsHTTP Log FileConfiguring HTTP/S proxy access with AD SSO The article is aimed at Standard mode but 98% of it applies to Transparent mode, too.Sophos UTM: Httpproxy with AD-SSO authentication doesn't work with Internet Explorer and Chrome after upgrading to 9.5FindProxyForURL - PAC & WPAD ResourceHow to change the outgoing interface for Web FilteringHTTPS Decrypt and Scan FAQ
Basic Exchange setup with SMTP ProxyStarting to Use Strict RDNShttp://www.cyren.com/ip-reputation-check.html = black.rbl.ctipd.astaro.localList all domains we've sent email - WhitelistBlock TLD Email Senders
Exchange WAF GuidePublish RDG for Server 2016Web Application Firewall: Configuration and troubleshootingWebserver Protection Reverse Authentication
Repair AP 55 firmware
How to uninstall Sophos Endpoint Security and ControlChange Endpoint Tamper-Protection PasswordHow to migrate from UTM Endpoint Protection to Sophos Central Endpoint Protection
.ovpn ßà .apc ConversionsHow to Run Preconnect/Connect/Disconnect OpenVPN ScriptsAuto-Failover IPsec VPN ConnectionsSophos UTM multiple S2S IPsec VPN mit Failover – Tutorial (DE)Hub and Spoke Site-to-Site VPNsHow to allow remote access users to reach another site via a Site-to-Site TunnelVPN between same subnets & More VPN between same subnetsSophos UTM Site-to-Site VPN AzureHow to connect Shrew Soft VPN client to Sophos IPsec VPNHow to create an X509 key based Site-to-Site VPNHow to Establish Site-to-Site VPN Connection using RSA KeysIPsec Site-to-Site – Kevin’s Kwik KonfigHow To Establish Site-to-Site VPN Connection using a Preshared Key
Change log: 2019-07-01 Added more new links and sections. 2017-10-09 Added a dozen new links. 2017-04-13 Fixed the links on this post - pasting from Word resulted in everything being garbled.