• Terrapin SSH Attack

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    STLJonnyS
    @willowen100 It basically forces your ssh (on the Windows side) to utilize that encryption algorithm. You'll need to do that on any machine you ssh from. I'd have rather found a more elegant workaround (preferably on the pfSense side, so the mod only has to be done in one location), but this works in a pinch.
  • pfSense Hangouts are available on YouTube!

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  • Share your pfSense stories!

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    Mine may be typical, maybe not..... Took over a large sennior living facility with a pretty robust it infrastructure spread between 4 IT rooms, 23 access points, 12-14 switches, and 200 internal devices and 200 guest/resident devices, all being run by a Sonicwall TZ350. I had been wanting to reallign everything network wise for some time but the TZ had 2 ports that were failing. I had worked with ClearOS from back in the ClarkConnect days and started searching for something similar. I found PfSense and it just fit what I wanted to do. I tested it a bit on an old Athalon64x2 rig for proof of concept and had planned on installing on a mini pc or something, but I wanted 6 nics. Standing in my main IT room I looked down and in the bottom of the rack were 4 HP DL380s, 2 of which were decommissioned 2 years ago. It's such huge overkill for hardware that it's hard to explain, but who wouldn't want redundant power supplies, raid 60 with 25 drives and remote system monitoring through ILO? lol I spun one up and loaded PfSense and started tweaking. 2 weeks ago I switched over and have been working out gremlins since.. Overall it's gone well, just one snag that a couple members here have been very kind in helping me work out. Thank you to this page for all the help. [image: 1697753147328-pfsense1.png]
  • LDAPS from pfSense to Active Directory failing with CA / SHA-1 issue

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    YamkaY
    @stephenw10 It does. I have the fact that the TCP connection gets established AND the TLS handshake continued : [image: 1769035435054-1ddc2194-5e60-46c9-9ae1-daf333ab8beb-image.png] This screenshot also shows the handshake works and the server proves its identity but that the verification of that proof fails : [image: 1769035523499-b46cc402-a51a-4e00-9b22-197ea623106c-image.png] Last but not least, the end of the output shows that it returns 68 which is the certificate validation fail since the server certificate has been signed by a CA that uses a weak algo : [image: 1769035575833-1007faa8-f3cd-4f5e-bac2-64f454287b70-image.png] It goes all the way through but still shows the error. Would that be a valid reason the LDAPS authentication is failing?
  • can i open up certain ports to a dynamic dns address?

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    stephenw10S
    Try setting a default backend. You don't actually need an ACL to select a backend since there is only one.
  • Log shows TCP:FA, how to avoid these entries

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    johnpozJ
    @Bob.Dig so here is what I have set on that tcp wan rule [image: 1769018604398-synonlyjpg.jpg]
  • if_pppoe didn't reconnect automatically

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    M
    @stephenw10 I have not see this reoccurring. It's been largely stable in the past 6 months. Will come back to this thread if it ever breaks again.
  • NTOPng Listing the Wrong IP on Certain Subnets.

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    G
    @dennypage That makes sense. Thanks for taking the time to reply!
  • Newly installed pfSense, no internet

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    stephenw10S
    Ah nice. Yeah that's a weird issue, sticks in the mind weird! I know a few users were asking for BIOS updates that allowed fully disabling the management features on that NIC in the MS01. There might be one by now. I'm not really following it that closely.
  • PHP Fatal error after adding port forward

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    stephenw10S
    Ah actually it's probably this: https://redmine.pfsense.org/issues/14440
  • StarLink as source for NTP

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    dennypageD
    @stephenw10 said in StarLink as source for NTP: Naming it chronyd.exe is killing me! But it doesn't really matter. It matters a bit, because the other files in the chrony/chrony-lite package, doc, system script, etc. do not have ".exe" in the name. @Mission-Ghost said in StarLink as source for NTP: RE: the .exe. I went around and around and somehow kept getting the chrony script instead of the executable. It seems they're named the same. So to keep that from happening I added .exe. Those two things are in different directories. One of those directories is in your search path, the other is not. Regardless, anything you put in cron (or any other script startup) should be done via absolute path so there should be no confusion. The daemon executable is /usr/local/sbin/chronyd, whereas the system startup script is /usr/local/etc/rc.d/chronyd.
  • Increase SWAP size

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    @sbs said in Increase SWAP size: Hello, I have seen many post stating that needing swap is bad. However, I noticed after installing suricata that the system was getting very slow, and suricate would die at random times. Log complained about swap getting filled. I increased the swap, and system was stable again. I installed the system quite a while ago, and cannot remember if I selected a swap size or just went with the default. Would it be possible to persist the "swap on" instructions so that my extra swap file can be used after reboot. FWIW : current memory swap on our system is : [image: 1768226055340-13c3ec32-1236-48bb-901c-1d3d7b74edd6-image.png] Regards, 4GB of physical memory is really small for suricata, depending on your settings. My current pfSense installation for a high bandwidth usage setup on a dual WAN 2.5 + 1 Gbps setup routinely pushes RAM past 80% of the 16GB installed. Your mileage may vary but I might look at installing more RAM.
  • WAN PPPOE connection instability

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    stephenw10S
    Yes if it's linked at 1Gbps to the ONT then that's not restricting anything and it's almost certainly limited at the ISP. But you should check if that changes when it loses the connection. You would normally see any link state change there logged though. If the mpd5 logs show it trying to connect and eventually it succeeds it sounds like this could be a server side problem. You might need to swap back in the ISPs device and test that. Then complain.
  • SG1100 VLAN confusion....

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    @stephenw10 Thanks a LOT!! The ' Interface > Switches > Ports and VLANs tabs' setting did the trick :-)
  • Netgate 6100 Crash and reboot

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    stephenw10S
    If it is repeating you should try running the debug kernel to get more info from it: https://docs.netgate.com/pfsense/en/latest/troubleshooting/debug-kernel.html
  • DHCP Static Mappings copy from one interface to another

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    stephenw10S
    You can open a feature request here: https://redmine.pfsense.org/ I don't see anything open matching that exactly. There is this: https://redmine.pfsense.org/issues/16097
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    @stephenw10 thank you for the confirmation. At least now I know that it won't work in the current setup, "it's not me, it's you" :) Hopefully with further development of if_pppoe more legacy setup will be added. I the meantime I'll try to nag my ISP to move me to something more modern.
  • Should I use IGMP proxy service?

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    dennypageD
    @beerguzzle said in Should I use IGMP proxy service?: Should I be running the IGMP proxy service? I am leery of making WAN the upstream interface. IGMP Proxy is used to route multicast from one interface to another(often WAN) to one or more other interfaces (usually LAN). It's used for things like IP-TV. As a general rule, you would know if you needed to route multicast from the internet. I'm guessing you do not need IGMP Proxy. As to the IGMP query packets appearing on your internal network, that is your switch asking each of its ports what multicast groups the port is interested in. You can safely allow IGMP packets into the lan interface on the firewall, or you can safely block them. I generally recommend allowing IGMP on lan ports because there is no downside to doing so. There is a minor down side to blocking them. If you allow IGMP, the host (pfSense) will respond to queries from the switch and provide an explicit list of multicast groups that it has interest in. In turn, the switch will only forward multicast groups that the host (pfSense) is actually interested in. If you block IGMP the usual default behavior of switches is to forward all multicast groups to the port, which means that the firewall be sent multicast packets even if it has no interest in them. The host will discard them, but it's a minor waste to send them across the wire and for the host to process them. As a general rule, is more efficient to use IGMP if your switch supports it.
  • CE to Plus License Question

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    stephenw10S
    If you send me the NDI / Order Number in chat I can check it.
  • The new if_pppoe doesn't write to logs

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    GertjanG
    @pfpv said in The new if_pppoe doesn't write to logs: After switching from ISC there were no logs ... Read here how to add Leases logs as ISC DHCP did.
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