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mailinglists35
/ no matching key exchange method found. Their offer
Last active
August 25, 2024 02:19
ssh older
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| Unable to negotiate with 192.168.1.1 port 22: no matching key exchange method found. Their offer: diffie-hellman-group14-sha1,diffie-hellman-group1-sha1,kexguess2@matt.ucc.asn.au | |
| Unable to negotiate with 192.168.1.1 port 22: no matching host key type found. Their offer: ssh-rsa | |
| ssh -o KexAlgorithms=diffie-hellman-group1-sha1 -o HostKeyAlgorithms=+ssh-rsa -o PubkeyAcceptedAlgorithms=+ssh-rsa user@host |
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| https://archive.ph/cBcTD | |
| https://web.archive.org/web/20240531085449/https://github.com/raivo-otp/ios-application/issues/328 | |
| https://web.archive.org/web/20240209114245/https://github.com/raivo-otp/marketing-website/issues/19 | |
| https://archive.ph/fGnO3#selection-8895.0-8895.99 |
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| https://bombich.com/kb/ccc6/some-files-and-folders-are-automatically-excluded-from-backup-task | |
| Skip to main content | |
| Home | |
| FEATURES | |
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| HELP | |
| Knowledge Base (ccc6)Some files and folders are automatically excluded from a backup task |
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| https://matt.sh/apfs-object-map-free-recovery | |
| APFS Object Map Recovery (free) | |
| APFS Object Map Recovery | |
| I spent a day figuring out how to look into a corrupt encrypted APFS partition. Here’s the notes. | |
| If you only care about the answer, jump to the last section. | |
| Kernel Panic | |
| macOS hard panicked on me with a graphics driver corruption error com.apple.iokit.IOAcceleratorFamily2 (which happened after seven “gpuRestart” logs were generated back-to-back). |
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| #!/bin/bash | |
| # thanks microsoft copilot. worked from first try. prompt: | |
| # can you write a small script in a language of your choice that takes input as defined by the name of the input file, searches for patterns that resemble an ethernet mac address including those that omit the zero, such as like when netstat on macos does, then replace the last three octets of the mac address with xx:xx:xx | |
| # it wrote python but python requires xcode so I asked for a rewrite in bash | |
| filename="$1" | |
| # MAC address pattern (with optional leading zeros) | |
| pattern="([0-9A-Fa-f]{1,2}[:-]){5}([0-9A-Fa-f]{1,2})" |
mailinglists35
/ add_cow.sh
Last active
July 12, 2023 16:33
Create writable device files from readonly images on Linux using device mapper
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| copied from https://git.scc.kit.edu/-/snippets/563, found on search for "device mapper volatile writeable readonly" | |
| #!/bin/bash | |
| set -e | |
| # test if $1 exists | |
| test -f "$1" | |
| BASEDIR=$(dirname "$1") |
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| 27332 pts/0 S+ 0:00 | \_ sudo -E dnf --enablerepo=ol8_UEKR6 install kernel-uek-5.4.17-2136.320.7.1.el8uek.x86_64 kernel-uek-devel-5.4.17-2136.320.7.1.el8uek.x86_64 | |
| 27334 pts/0 S+ 1:40 | \_ /usr/libexec/platform-python /bin/dnf --enablerepo=ol8_UEKR6 install kernel-uek-5.4.17-2136.320.7.1.el8uek.x86_64 kernel-uek-devel-5.4.17-2136.320.7.1.el8uek.x86_64 | |
| 48159 pts/0 S+ 0:00 | \_ /bin/sh /var/tmp/rpm-tmp.UD5iFV 2 | |
| 56855 pts/0 S+ 0:00 | \_ /bin/bash /bin/kernel-install add 5.4.17-2136.320.7.1.el8uek.x86_64 /lib/modules/5.4.17-2136.320.7.1.el8uek.x86_64/vmlinuz | |
| 56897 pts/0 S+ 0:00 | \_ /bin/sh /usr/lib/kernel/install.d/40-dkms.install add 5.4.17-2136.320.7.1.el8uek.x86_64 /boot/b26894ddea4a49caaac4c71d4e27f057/5.4.17-2136.320.7.1.el8uek.x86_64 /lib/modules/5.4.17-2136.320.7.1.el8uek.x86_64/vmlinuz | |
| 56898 pts/0 S+ 0:00 | \_ /bin/sh /usr/lib/ |
mailinglists35
/ macos
Created
June 18, 2023 19:50
trying to run macos under unsupported rhel9.2 via podman libvirt/qemu inside container
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| sudoedit /etc/tmpfiles.d/libvirt-container.conf | |
| d /run/libvirt-fedora 0755 ml35 ml35 - | |
| sudo systemd-tmpfiles --create /etc/tmpfiles.d/libvirt-container.conf | |
| sudo gpasswd -a ml35 kvm | |
| sudo setsebool -P container_use_devices=true | |
| sudo setsebool -P container_manage_cgroup true | |
| $ grep source /var/local/macos-mojave-10.14.xml | |
| <resource> | |
| </resource> | |
| <source dev='/dev/zvol/gen8/vm/mojave-din-vmware'/> |
mailinglists35
/ choosing ext4 vs xfs
Last active
May 27, 2023 22:21
when to choose EXT4 over XFS - ext4 is still king for home use or older systems
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| https://access.redhat.com/articles/3129891#choosing-a-local-file-system-6 | |
| Another way to characterize this is that the Ext4 file system variants tend to perform better on systems that have limited I/O capability. Ext3 and Ext4 perform better on limited bandwidth (< 200MB/s) and up to ~1,000 IOPS capability. For anything with higher capability, XFS tends to be faster. XFS also consumes about twice the CPU-per-metadata operation compared to Ext3 and Ext4, so if you have a CPU-bound workload with little concurrency, then the Ext3 or Ext4 variants will be faster. In general, Ext3 or Ext4 is better if an application uses a single read/write thread and small files, while XFS shines when an application uses multiple read/write threads and bigger files. | |
| https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/managing_file_systems/overview-of-available-file-systems_managing-file-systems | |
| ext4 is better when: | |
| Single-threaded I/O | |
| Limited I/O capability (under 1000 IOPS) |
mailinglists35
/ gptbios
Created
May 27, 2023 22:17
create parted gpt partitions on bios disk including microsoft reserved
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| mktable gpt | |
| mkpart ESP fat32 1MiB 513MiB | |
| set 1 boot on | |
| mkpart biosboot 513MiB 514MiB | |
| set 2 bios_grub on | |
| mkpart msftres 514MiB 530MiB | |
| unit MiB | |
| (parted) p | |
| Model: ATA Samsung SSD 860 (scsi) |
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