Rodrigo Arias rarias
  • Joined on 2024-04-26
rarias pushed to robust-fetchGit at rarias/jungle 2025-11-21 15:17:58 +01:00
9b491e8d01 Add fetchGitMirror function
rarias pushed to robust-fetchGit at rarias/jungle 2025-11-21 15:14:49 +01:00
9107cad699 Add fetchGitMirror function
86edeba765 Add nix patch to implement builtins.catchAll
a173af654f Fix osu cross-compilation
2fff7e4a7b Set mpich default compilers from targetPackages
a761b73336 Enable meta.cross for mpich related packages
Compare 20 commits »
rarias commented on pull request rarias/jungle#217 2025-11-21 15:10:40 +01:00
Hardening SSH login in apex

It seems now it bans bots for quite a while as expected (10 min * 2^(5 - 1) = 160 min = 2h 40min):

apex% sudo journalctl -u fail2ban -f -n 30
Nov 21 14:30:02 apex fail2ban.filter[1460258]:…
rarias pushed to disable-password-login at rarias/jungle 2025-11-21 12:21:24 +01:00
15a26570be Increase fail2ban ban time on each attempt
rarias commented on pull request rarias/jungle#217 2025-11-21 12:00:13 +01:00
Hardening SSH login in apex

Default fail2ban config is not particularly clever:

apex% sudo journalctl -u fail2ban 
rarias created pull request rarias/jungle#217 2025-11-20 15:27:17 +01:00
Hardening SSH login in apex
rarias created branch disable-password-login in rarias/jungle 2025-11-20 15:24:51 +01:00
rarias pushed to disable-password-login at rarias/jungle 2025-11-20 15:24:51 +01:00
341551d5ba Disable password login via SSH in apex
2d2762d4ec Enable fail2ban in apex login node
Compare 2 commits »
rarias commented on issue rarias/coffee#2 2025-11-10 21:36:36 +01:00
Make a new control board

I have increased the setpoint to 85°C and configured the heater relay to always stay on if the pump is enabled. It has caused the temperature probe to reach almost 100°C with the following…

rarias commented on issue rarias/jungle#215 2025-11-05 12:45:01 +01:00
lake2 very slow during IO operations

After reconnecting the Ethernet cable into another port in the switch the speed went back to 1 Gbit/s:

lake2% sudo ethtool eno1
Settings for eno1:
        Supported ports: [ TP ]
      …
rarias commented on issue rarias/jungle#215 2025-11-03 14:22:20 +01:00
lake2 very slow during IO operations

Disabling MDI-X doesn't change the result after renegotiation, but it drops the SOL console. Is the BMC messing with the NIC? We could add another Ethernet cable and switch to the other port for…

rarias commented on issue rarias/jungle#215 2025-11-03 14:13:11 +01:00
lake2 very slow during IO operations

Another observation:

MDI-X: on (auto)

Why is it using cross-over configuration?

rarias commented on issue rarias/jungle#215 2025-11-03 14:03:25 +01:00
lake2 very slow during IO operations

Same state after a reboot:

lake2% sudo ethtool eno1
Settings for eno1:
        Supported ports: [ TP ]
        Supported link modes:   10baseT/Half 10baseT/Full
                       …
rarias commented on issue rarias/jungle#215 2025-11-03 13:52:31 +01:00
lake2 very slow during IO operations

Speed renegotiation doesn't seem to fix it.

lake2% sudo mii-tool -r eno1
restarting autonegotiation...
lake2% sudo ethtool eno1
Settings for eno1:
        Supported ports: [ TP ]
    …
rarias commented on issue rarias/jungle#215 2025-11-03 13:42:18 +01:00
lake2 very slow during IO operations

What the hell:

lake2% sudo ethtool eno1
Settings for eno1:
        Supported ports: [ TP ]
        Supported link modes:   10baseT/Half 10baseT/Full
                               …
rarias opened issue rarias/jungle#215 2025-11-03 13:39:48 +01:00
lake2 very slow during IO operations
rarias pushed to main at rarias/coffee 2025-11-02 19:26:49 +01:00
8502ee3c5c Implement PID thremostat controller
678f16111b Add thermostat and heater control
3ea6ff0e14 Merge makefile rules for tests
d59dec50a8 Implement led control in another module
Compare 4 commits »
rarias commented on issue rarias/coffee#2 2025-11-02 19:17:12 +01:00
Make a new control board

Added a PID controller with very slow relay PWM cycle (integral component is disabled for now). The PID controller outputs a value from 0 to 1, which in turn determines the time the relay will be…

rarias commented on pull request rarias/jungle#213 2025-10-31 13:25:39 +01:00
Fix mpich cross compilation and clean up tagaspi

Can we add a comment here on why is broken? Maybe also in the --with-mpi=yes above.