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by bls
Thu Jul 18, 2019 2:14 pm
Forum: Networking and servers
Topic: Pi 4 router / DHCP server - AmazonBasics Ethernet USB 3.0 good?
Replies: 2
Views: 267

Re: Pi 4 router / DHCP server - AmazonBasics Ethernet USB 3.0 good?

This won't directly answer your question about the AmazonBasics adapter, but see https://www.raspberrypi.org/forums/viewtopic.php?f=36&t=245649 for some testing I did on a Pi4. UDP performance was quite good. Untuned TCP performance was lower than I would have expected, although still faster than my...
by bls
Thu Jul 18, 2019 2:01 pm
Forum: Troubleshooting
Topic: SSH issues with my rPi4
Replies: 3
Views: 165

Re: SSH issues with my rPi4

You didn't mention what user you are expecting to login as on the pi (which depends on you Mac username unless you are using username@ipaddr), but I did notice that your sshd_config has "DenyUsers pi root". More details would be helpful...
by bls
Wed Jul 17, 2019 11:14 pm
Forum: Troubleshooting
Topic: apt-get update/upgrade literally broke post Buster install
Replies: 22
Views: 1134

Re: apt-get update/upgrade literally broke post Buster install

Here's what I do with Trigger happy when I create a new SD card. I like to keep things around, but disabled, since you never know when inspiration or need might strike. echo "Disabling TriggerHappy..." mv /usr/sbin/thd /usr/sbin/.thd systemctl disable triggerhappy.service systemctl disable triggerha...
by bls
Wed Jul 17, 2019 7:05 pm
Forum: Troubleshooting
Topic: pip3 not working
Replies: 4
Views: 240

Re: pip3 not working

It's not widespread...working fine on my Buster Lite install: rpi41/home/bls> sudo pip3 list Package Version ------------- --------- asn1crypto 0.24.0 certifi 2018.8.24 chardet 3.0.4 cryptography 2.6.1 entrypoints 0.3 idna 2.6 keyring 17.1.1 keyrings.alt 3.1.1 pip 18.1 pycrypto 2.6.1 PyGObject 3.30....
by bls
Tue Jul 16, 2019 11:58 pm
Forum: Advanced users
Topic: Moving file system to NFS share - not working - nfs server not responding
Replies: 12
Views: 1123

Re: Moving file system to NFS share - not working - nfs server not responding

I had a few minutes this afternoon so I gave it a go against my opensuse server. I had to add 'nolock' to get it to make progress, but it then hung starting the network. A quick look in wireshark showed it doing some illegal operation. I had created the tree by mounting an IMG file of an SD card, so...
by bls
Tue Jul 16, 2019 9:03 pm
Forum: Advanced users
Topic: Moving file system to NFS share - not working - nfs server not responding
Replies: 12
Views: 1123

Re: Moving file system to NFS share - not working - nfs server not responding

Is there any useful information in the Synology log, or is there any additional logging on the Synology that you can enable?
by bls
Tue Jul 16, 2019 6:21 pm
Forum: Troubleshooting
Topic: DNS Query every 5 secs for wlan0
Replies: 11
Views: 373

Re: DNS Query every 5 secs for wlan0

I wonder why you have systemd-resolved running if you're using pihole, since pihole replaces the name service function. Do you have any idea how it got enabled in the first place?
by bls
Mon Jul 15, 2019 10:49 pm
Forum: Troubleshooting
Topic: DNS Query every 5 secs for wlan0
Replies: 11
Views: 373

Re: DNS Query every 5 secs for wlan0

This is the kind of stuff I am talking about https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=245247&p=1496699 EDIT. The one I prefer: https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=244649 Again, no idea if it is relevant here. Ah. I suspect most of those are issues when combined wi...
by bls
Mon Jul 15, 2019 10:11 pm
Forum: Troubleshooting
Topic: DNS Query every 5 secs for wlan0
Replies: 11
Views: 373

Re: DNS Query every 5 secs for wlan0

Buster has switched to openresolv (interfacing w/ systemd-resolved) instead of resolvconf previously used in Stretch. I am quite fuzzy about the ramifications of the change but I've already seen a few funny things happen... Are you sure? I didn't observe it being turned on in my freshly-minted Bust...
by bls
Sun Jul 14, 2019 11:18 pm
Forum: Networking and servers
Topic: Pi4/Buster router performance
Replies: 3
Views: 1533

Re: Pi4/Buster router performance

I don’t have a pi4, sorry (and sad). Did you try bridging the interfaces and see how fast (UDP, preferably) transfers go? If you get a result in the 800mbps range then I would try UDP, routed, without masquerading (with static routes to the pi4 router) If you get a result in the 600mbps range then ...
by bls
Sat Jul 13, 2019 11:34 pm
Forum: Networking and servers
Topic: Pi4/Buster router performance
Replies: 3
Views: 1533

Pi4/Buster router performance

One of the changes in the Pi4 that I was really excited about was the much higher performance of the Ethernet and USB3 ports. I set up my Pi4 as a router and did some testing. I set up the following configuration: x86 Box <----> GB Switch <---> Pi4 Dongle [Pi4] Ethernet <---> GB Switch <---> NFS ser...
by bls
Sat Jul 13, 2019 10:03 pm
Forum: Troubleshooting
Topic: Did latest Buster update dork my Pi4 power management? [Nope!]
Replies: 2
Views: 193

Re: Did latest Buster update dork my Pi4 power management?

Hmmm...I should have looked a lot more closely at this. It appears that the CPU is being throttled to .6GHz, but when more juice is required, it pops back to 1.5Ghz. I've never observed that before.
by bls
Sat Jul 13, 2019 9:45 pm
Forum: Troubleshooting
Topic: Did latest Buster update dork my Pi4 power management? [Nope!]
Replies: 2
Views: 193

Did latest Buster update dork my Pi4 power management? [Nope!]

Pi4 was running pretty well before this morning. The status info in Icewm's status taskbar indicated that the CPU frequency was 1.5Ghz. Happy me. This morning I built a fresh, new SD card with the 2019-07-10 Buster image for a test drive. I was testing network throughput and noticed that the Pi temp...
by bls
Sat Jul 13, 2019 7:29 pm
Forum: Troubleshooting
Topic: wifi connection drops, then 'unreachable'
Replies: 22
Views: 686

Re: wifi connection drops, then 'unreachable'

After restarting, I ran journalctl and inspected the output. There was no new content (less than 6 months old) until 8:17 (during the 5 minute period when wifi presumably failed) with dozens of entries, all within a few seconds of 8:17:00. Just one is "new USB device found", which makes no sense be...
by bls
Sat Jul 13, 2019 3:00 am
Forum: Advanced users
Topic: emacs 24 crashes under Raspbian stretch
Replies: 12
Views: 473

Re: emacs 24 crashes under Raspbian stretch

I'm a bit puzzled... The OP *just* switched from Jessie to Stretch? Isn't that...kind of behind the times as Raspbian has just switched from Jessie to Buster. Don't be too puzzled...lots of people "experiment" with the latest release (Buster, in this case), but for "production" workloads may opt to...
by bls
Fri Jul 12, 2019 12:21 am
Forum: Networking and servers
Topic: Advice requested; Pi 4 NAS - 1, 2 or 4Gb of RAM?
Replies: 17
Views: 3410

Re: Advice requested; Pi 4 NAS - 1, 2 or 4Gb of RAM?

More memory is always better, but even a 1GB Pi4 will be quite capable of running NFS and/or Samba. And, in a year or 3 when you discover that your Pi needs more memory, there will probably be a Pi5 or Pi6 with 8GB or 16GB. ;)
by bls
Thu Jul 11, 2019 11:54 pm
Forum: Troubleshooting
Topic: wifi connection drops, then 'unreachable'
Replies: 22
Views: 686

Re: wifi connection drops, then 'unreachable'

Can you correlate the times of the network dropping with the log entries showing wlan0 carrier lost?
by bls
Thu Jul 11, 2019 6:41 pm
Forum: Troubleshooting
Topic: wifi connection drops, then 'unreachable'
Replies: 22
Views: 686

Re: wifi connection drops, then 'unreachable'

Here's an example of the kind of "WiFi bounce" errors that I get on one of my systems. Yours will probably look different, depending on how your network is configured (I use systemd-networkd. Other common choices are dhcpcd and NetworkManager). Jul 09 19:42:29 garagepi systemd-networkd[151]: wlan0: ...
by bls
Thu Jul 11, 2019 4:56 pm
Forum: Troubleshooting
Topic: wifi connection drops, then 'unreachable'
Replies: 22
Views: 686

Re: wifi connection drops, then 'unreachable'

Is there anything relevant and useful in the system log (journalctl)?
by bls
Thu Jul 11, 2019 12:04 am
Forum: Advanced users
Topic: emacs 24 crashes under Raspbian stretch
Replies: 12
Views: 473

Re: emacs 24 crashes under Raspbian stretch

Great that switching VNC servers solved your problem. New bugs can be a hassle.
by bls
Tue Jul 09, 2019 7:43 pm
Forum: Raspbian
Topic: Installing Raspbian on headless RPi4 - how?
Replies: 19
Views: 1311

Re: Installing Raspbian on headless RPi4 - how?

You can definitely use VNC to connect to a Pi even if it's set to boot to console. See, for example https://github.com/gitbls/RPiVNCHowTo , which documents a method for using the TigerVNC server on Raspbian. It doesn't matter whether you're booting to console or graphical, and can work with either R...
by bls
Mon Jul 08, 2019 10:19 pm
Forum: Advanced users
Topic: emacs 24 crashes under Raspbian stretch
Replies: 12
Views: 473

Re: emacs 24 crashes under Raspbian stretch

This seems like an environment issue of some sort. I'm using a PC with the TightVNC server to connect to a TigerVNC server on my Pi, with VNC configured as documented here: https://github.com/gitbls/RPiVNCHowTo I doubt that it's something on the Mac end. As I understand realVNC and how you're using ...
by bls
Mon Jul 08, 2019 9:20 pm
Forum: Raspbian
Topic: Buster bug report thread
Replies: 215
Views: 25605

Re: Buster bug report thread

Yes, using systemd-networkd to manage eth0 and wlan0. I added two files to /etc/systemd/network. Then my understanding is that it's working as intended: https://lists.freedesktop.org/archives/systemd-devel/2015-April/030937.html Not sure that there's anything that can be done without adding drop-in...
by bls
Mon Jul 08, 2019 7:45 pm
Forum: Raspbian
Topic: Buster bug report thread
Replies: 215
Views: 25605

Re: Buster bug report thread

Are you using networkd to manage eth0? If so, what you're seeing is the documented behaviour. Did you add any files to /lib/systemd/network or /etc/systemd/network? Yes, using systemd-networkd to manage eth0 and wlan0. I added two files to /etc/systemd/network. 10-eth0.network [Match] Name=eth0 [Ne...
by bls
Mon Jul 08, 2019 6:58 pm
Forum: Advanced users
Topic: emacs 24 crashes under Raspbian stretch
Replies: 12
Views: 473

Re: emacs 24 crashes under Raspbian stretch

I'm unclear why you'd need to use X11 forwarding if you're running emacs on a VNC desktop. Can you describe your scenario in a bit more detail so that I can try to come as close to it as possible?

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