Recent content by l008com

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    SSD that can't be seen.... sometimes

    Tried with a 13" 2012 macbook pro and a 17" 2011 macbook pro. One running 10.15.7 the other running 10.13.something In disk utility, you see nothing at all, it's like nothing is connected. I don't have a windows box or any other Macs I can get into easily (lots of mac minis). It *DOES* work in...
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    SSD that can't be seen.... sometimes

    I got this 240 GB Dell branded, Micron manufactured SSD for free. It's some Enterprise class drive out of a server. If I put it in a USB dock, it works fine. But if I put it in a Mac Book Pro, the computer won't see it. I tried two different machines. To be more specific, it's not just that...
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    Suggestions for an 8 Bay or 2x4 Bay Enclosure

    That's not going to work when your server is a little Mac mini. Plus a "hacked" Custom solution like that is what I used to have before this single USB3 setup. I really don't want to go back. But in other news, it looks like the enclosure might not be going bad after all. It seems like two of...
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    Suggestions for an 8 Bay or 2x4 Bay Enclosure

    Well just post the link again and tell me some hints for what the domain is.
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    Suggestions for an 8 Bay or 2x4 Bay Enclosure

    Well, that is some interesting cencorship?
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    Suggestions for an 8 Bay or 2x4 Bay Enclosure

    I've had this great 8-bay USB3 MediaSonic enclosure connected to my home server for the past 6.5 years. It's been really good. I bought it without drives for $270 new. I loaded up the drives I had and over the years, I modified it as needed. Tonight, it started freaking out. Drives come and go...
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    Blocking SYN-Flood Attacks on macOS?

    It would be really hard trying to catch an incident with tcpdump. Plus there is so much data in and out, this is a very high traffic web server. So I contacted my data center, they checked their logs for the time in question and didn't see anything. I looked through my own logs that save...
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    Blocking SYN-Flood Attacks on macOS?

    Things are getting weirder. I was playing around with my dummy server and found out that the `ifconfig en0 down` command wasn't quite working. It was bringing the interface down but the interface would pop back up after a few seconds on it's own, not waiting for my own up command. Turns out the...
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    Blocking SYN-Flood Attacks on macOS?

    So some good news. I have a script up and running that resets my TCP stack if the server is offline for more than 5 minutes. It has been working very well, I haven't had to do any hard server reboots. Even during severe attacks, once the server gets knocked offline, after 5 minutes, it shuts...
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    Blocking SYN-Flood Attacks on macOS?

    So i'm back trying to get synproxy running on my dummy server. There may have been some unrelated problems that caused previous attempts to fail, so they weren't necessarily reliable tests. So now I'm back, trying to enable it with the following rule: pass in quick proto tcp from en0 port {...
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    Blocking SYN-Flood Attacks on macOS?

    So I just added "rdr-to 127.0.0.1" to my web/mail port rule on my dummy server and just like that, it appears to be working. I can't really tell if the proxy is working because its a legit connection when I load a dummy web page, so if it's proxied, it's only proxied for a ms. If only I knew how...
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    Blocking SYN-Flood Attacks on macOS?

    Before I get involved with the mess that running a separate VM will be, I want to make sure I exhaust all other, simpler options. With that in mind, did you see the last part of my previous message? It looks like synproxy is half-working, it appears as though the firewall is just somehow...
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    Blocking SYN-Flood Attacks on macOS?

    There isn't really any benefit to doing that. If that can be done, meaning if the TCP handshakes can be forwarded in full to the VM without clogging up the host, then using BSD as a 'filter' should work just as well as running the full server in there. But theres no reason to run the whole...
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    Blocking SYN-Flood Attacks on macOS?

    So I'm trying to think of how I should move forward. There are lots of options but none of them are great. One that I think you mentioned above was the idea of running BSD in a virtual machine, routing inbound traffic to that, then forwarding that traffic, after BSD does the handshaking, on to...
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    Blocking SYN-Flood Attacks on macOS?

    Ok here is an update. One thing I've learned is that the command I've been using to reload my ruleset is not working. pfctl -F rules -f /etc/pf.conf It appears to work. And the changes I make *ARE* reflected by running pfctl -sr But they don't actually WORK until a reboot. So that invalidates a...
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