https://wiki.orzfly.com/ 2026-04-16T04:15:00+00:00 https://wiki.orzfly.com/ https://wiki.orzfly.com/lib/tpl/starterbootstrap/images/favicon.ico text/html 2017-04-23T20:26:52+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/android-captive-portal?rev=1492979212&do=diff Android Captive Portal URLs & Commands Commands settings put global captive_portal_detection_enabled 0 settings put global captive_portal_mode 0 settings put global captive_portal_detection_enabled 1 settings put global captive_portal_mode 1 settings put global captive_portal_use_https 0 settings put global captive_portal_server captive.v2ex.co settings put global captive_portal_http_url http://captive.v2ex.co/generate_204 settings put global captive_portal_https_url https://captive.v2ex.c… text/html 2017-03-26T06:23:04+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/android-demo-mode?rev=1490509384&do=diff Android Demo Mode settings put global sysui_demo_allowed 1 am broadcast -a com.android.systemui.demo -e command enter am broadcast -a com.android.systemui.demo -e command battery -e level 100 -e plugged false am broadcast -a com.android.systemui.demo -e command network -e wifi hide am broadcast -a com.android.systemui.demo -e command notifications -e visible false am broadcast -a com.android.systemui.demo -e command clock -e hhmm 0900 am broadcast -a com.android.systemui.demo -e command exit text/html 2021-09-16T08:03:08+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/android-icon-blacklist?rev=1631779388&do=diff Android Status Bar Icon Blacklist settings get secure icon_blacklist settings put secure icon_blacklist rotate,headset,alarm_clock,vpn,managed_profile settings delete secure icon_blacklist Value Description airplane Airplane Mode vpn VPN volte text/html 2017-12-19T18:06:30+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/apt-disable-package?rev=1513706790&do=diff Prevent specific packages from being installed in apt Package: xfce4-power-manager Pin: release * Pin-Priority: -1 Package: xfce4-power-manager-data Pin: release * Pin-Priority: -1 root@misaka:~# apt install xfce4-power-manager Reading package lists... Done Building dependency tree Reading state information... Done Package xfce4-power-manager is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from ano… text/html 2017-12-22T05:01:01+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/aria2-netns-systemd?rev=1513918861&do=diff Run aria2 with isolated netns with Systemd git clone https://github.com/Jamesits/systemd-named-netns cd systemd-named-netns make install BRIDGE=br-lan DHCPV4=1 MACADDR=52:54:01:02:76:79 [Unit] Requires=network-online.target netns-bridge@aria2c.service mts-Incoming.mount After=network-online.target netns-bridge@aria2c.service mts-Incoming.mount BindsTo=netns-bridge@aria2c.service mts-Incoming.mount JoinsNamespaceOf=netns@aria2c.service [Service] PrivateNetwork=yes SyslogIdentifier=ari… text/html 2017-04-23T20:06:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/cron-tricks?rev=1492978015&do=diff Several Tricks with Cron Jobs Logging with systemd-cat /usr/bin/systemd-cat -t topic-name.cron "/path/to/command arg1 arg2 argN" Locking with flock flock -xn /path/to/lock -c "/path/to/command arg1 arg2 argN" Ping Monitoring with healthchecks.io text/html 2021-10-22T12:54:54+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/disk-archiving?rev=1634907294&do=diff My Disk Archiving Workflow Identifying disk ls -lh /dev/disk/by-id/ata-* Creating disk image ddrescue /dev/disk/by-id/ata-SB8000NM1234-123456_DEADCAFE ata-SB8000NM1234-123456_DEADCAFE.img ata-SB8000NM1234-123456_DEADCAFE.txt GNU ddrescue - Data recovery tool. Copies data from one file or block device to another, trying to rescue the good parts first in case of read errors. Usage: ddrescue [options] infile outfile [mapfi… text/html 2017-03-26T03:46:58+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/disk-image-compress-mountable?rev=1490500018&do=diff Create mountable compressed disk image * Install tools apt install -y qemu-utils libguestfs-tools * Sparsify the disk virt-sparsify -v --in-place disk.img * Convert the disk to dynamic VHD qemu-img convert -p -o subformat=dynamic -f raw -O vpc disk.img disk.vhd text/html 2017-03-26T06:15:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/disk-image-mount-partition?rev=1490508921&do=diff Mount Partitions in Disk Image * : If you have util-linux v2.21 or higher (for example, Ubuntu 16.04). * : If you have a recent kernel, and pass loop.max_part=63 on boot (if loop is built-in) or to modprobe (if loop is a module). * : apt install kpartx text/html 2017-04-09T17:09:40+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/docker-install-gitlab-ci-runner?rev=1491757780&do=diff Run GitLab CI Runner with Docker * Run docker run -it --rm gitlab/gitlab-runner:ubuntu-v9.0.2 register # docker run -it --rm gitlab/gitlab-runner:ubuntu-v9.0.2 register Running in system-mode. Please enter the gitlab-ci coordinator URL (e.g. https://gitlab.com/): https://git.EXAMPLE.com/ Please enter the gitlab-ci token for this runner: EXAMPLE # find at https://git.EXAMPLE.com/admin/runners Please enter the gitlab-ci description for this runner: [EXAMPLE00000]: EXAMPLE-digitalocean-auto-ny… text/html 2017-04-09T15:52:06+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/docker-install-gitlab?rev=1491753126&do=diff Run GitLab with Docker [Unit] Description=GitLab After=docker.service Requires=docker.service BindsTo=docker.service [Service] SyslogIdentifier=gitlab.service ExecStart=/usr/bin/systemd-docker run \ --rm \ --name %n \ --hostname git.EXAMPLE.com \ --net orznet --ip 100.64.64.2 \ --volume /srv/gitlab/config:/etc/gitlab \ --volume /srv/gitlab/logs:/var/log/gitlab \ --volume /srv/gitlab/data:/var/opt/gitlab \ --env GITLAB_OMNIBUS_CONFIG="\ gitlab_rails['smtp_enable'] = true; \… text/html 2017-04-09T17:05:53+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/docker-install-mta?rev=1491757553&do=diff Run A MTA (Mail Transfer Agent) for Other Docker Containers [Unit] Description=SMTP Proxy for EXAMPLE After=docker.service Requires=docker.service BindsTo=docker.service [Service] SyslogIdentifier=EXAMPLE-smtp.service ExecStart=/usr/bin/systemd-docker run \ --rm \ --name %n \ --net mynet --ip 100.64.5.3 \ --env MAILNAME=git.EXAMPLE.com \ namshi/smtp Restart=always RestartSec=30s Type=notify NotifyAccess=all TimeoutStartSec=120 TimeoutStopSec=30 [Install] WantedBy=multi-user.target text/html 2017-04-23T19:23:47+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/gitlab-ci-golang?rev=1492975427&do=diff .gitlab-ci.yml for Golang image: golang:1.8 before_script: - ln -s /builds /go/src/git.orzfly.com - cd /go/src/git.orzfly.com/orzfly/mastodon-rss-bot - go get github.com/Masterminds/glide - glide install stages: - build compile: stage: build script: #- GOARCH=arm GOOS=linux go build -o mastodon-rss-bot-linux-arm #- GOARCH=386 GOOS=linux go build -o mastodon-rss-bot-linux-386 #- GOARCH=386 GOOS=freebsd go build -o mastodon-rss-bot-freebsd-386 … text/html 2017-03-29T08:27:40+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/gitlab-omnibus-pgsql?rev=1490776060&do=diff Access Bundled PostgreSQL in GitLab Omnibus Installation Connection Details * Host: /var/opt/gitlab/postgresql * Socket: /var/opt/gitlab/postgresql/.s.PGSQL.5432 * UNIX User: gitlab-psql * User: gitlab-psql * Password: (empty) * Database: text/html 2017-03-26T02:51:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/grub-ubuntu-netboot?rev=1490496708&do=diff Run Ubuntu Installer from any GRUB-based system So if I have a KVM VPS and the VPS provider doesn't provide Ubuntu 16.04 images nor mounting ISO images... * Get ISO from <http://cdimage.ubuntu.com/netboot/>. wget -O/tmp/mini.iso http://mirrors.zju.edu.cn/ubuntu/dists/xenial/main/installer-amd64/current/images/netboot/mini.iso text/html 2017-03-26T06:51:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/hyperv-nat-bridge?rev=1490511099&do=diff Set up a NAT network on Hyper-V host * Open a PowerShell console as Administrator * Create an internal switch New-VMSwitch -SwitchName "NAT Switch" -SwitchType Internal * Get InterfaceIndex from Get-NetAdapter * Allocate IP for the new switch, 100.64.86.1/24 text/html 2017-12-22T04:59:20+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/interactive-service-systemd?rev=1513918760&do=diff Interactive Services with Systemd [Unit] Description=Minecraft Server [Service] User=minecraft Group=minecraft SyslogIdentifier=minecraft.service ExecStart=/usr/bin/tmux -S /home/minecraft/minecraft.tmux new -s minecraft -d 'java -jar minecraft-server.jar ....................' ExecStop=/usr/bin/tmux -S /home/minecraft/minecraft.tmux kill-server Type=forking WorkingDirectory=/home/minecraft/server Restart=always RestartSec=30s KillSignal=SIGINT TimeoutStartSec=10 TimeoutStopSec=10 [Install] W… text/html 2017-12-20T18:09:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/ip-netns-cheatsheet?rev=1513793366&do=diff Cheatsheet for ip netns /sbin/ip netns del ns-downloads /sbin/ip netns add ns-downloads /sbin/ip link add v-down-root type veth peer name v-down-peer /sbin/ip link set v-down-peer netns ns-downloads /sbin/brctl addif br-lan v-down-root /sbin/ip link set v-down-root up /sbin/ip netns exec ns-downloads /sbin/ip addr add 10.0.0.34/16 dev v-down-peer /sbin/ip netns exec ns-downloads /sbin/ip link set v-down-peer up /sbin/ip netns exec ns-downloads /sbin/ip link set lo up /sbin/ip netns exec ns-… text/html 2017-12-19T18:01:20+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/linux-disconnect-sata-device?rev=1513706480&do=diff Disconnect/Eject SATA devices in Linux Disconnect * Identify the device root@misaka:~# lsblk -S /dev/sdd NAME HCTL TYPE VENDOR MODEL REV TRAN sdd 3:0:0:0 disk ATA TOSHIBA MD04ABA4 FP1T sata * Do the magic root@misaka:~# echo 1 > /sys/block/sdd/device/delete [45625.431882] sd 3:0:0:0: [sdd] Synchronizing SCSI cache [45625.437707] sd 3:0:0:0: [sdd] Stopping disk [45626.375309] ata4.00: disabled text/html 2017-03-25T16:52:28+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/osx-app-language?rev=1490460748&do=diff Set Language for Individual Application in OS X defaults write "$HOME/Containers/com.tencent.qq/Data/Library/Preferences/com.tencent.qq" AppleLanguages '(zh-Hans, zh-CN, en)' defaults write com.tencent.qq AppleLanguages '(zh-Hans, zh-CN, en)' defaults write -app AliWangwang AppleLanguages '(zh-Hans, zh-CN, en)' text/html 2017-03-25T17:18:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/osx-boot-disk?rev=1490462285&do=diff Create OS X Boot Disk Use createinstallmedia sudo "/Applications/Install OS X El Capitan.app/Contents/Resources/createinstallmedia" --volume "/Volumes/Untitled" --applicationpath "/Applications/Install OS X El Capitan.app" Manually sudo hdiutil attach "/Applications/Install OS X El Capitan.app/Contents/SharedSupport/InstallESD.dmg" sudo asr restore -source "/Volumes/OS X Install ESD/BaseSystem.dmg" -target "/Volumes/Untitled" -erase -format HFS+ sudo rm "/Volumes/OS X Base System/System/I… text/html 2017-03-26T04:51:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/osx-compress?rev=1490503915&do=diff Use HFS+ Compress on OS X brew install afsctool sudo afsctool -s 10 -c /Applications/Xcode.app/Contents/Developer/Platforms for i in \ /Applications/Adobe* \ /Applications/Utilities/Adobe* \ /Library/Application\ Support/Adobe \ ; do sudo afsctool -s 10 -c "$i"; done for i in \ /Applications/Microsoft\ Excel.app \ /Applications/Microsoft\ PowerPoint.app \ /Applications/Microsoft\ Word.app \ ; do sudo afsctool -s 10 -c "$i"; done text/html 2017-03-25T17:17:56+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/osx-disable-audio-duck?rev=1490462276&do=diff Temporarily Disable Audio Ducking in OS X When you enter a call in OS X, as of Mavericks, it lowers the volume of everything else besides the call. There's no way to disable this “feature.” Solution: Before making the call in the application, paste one of the following line into terminal. text/html 2018-01-09T12:36:46+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/osx-scrollbar?rev=1515501406&do=diff Set Scroll Bar style for Individual Application in OS X defaults write NSGlobalDomain AppleShowScrollBars -string "Always" defaults write NSGlobalDomain AppleShowScrollBars -string "WhenScrolling" defaults write NSGlobalDomain AppleShowScrollBars -string "Automatic" text/html 2017-03-26T06:40:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/proxmox-nat-bridge?rev=1490510429&do=diff Create NAT Bridge in Proxmox Tested on Proxmox on Debian 8. * Modify /etc/network/interfaces to add NAT iptables auto vmbr1 iface vmbr1 inet static address 100.64.43.1 netmask 255.255.255.0 bridge_ports none bridge_stp off bridge_fd 0 post-up echo 1 > /proc/sys/net/ipv4/ip_forward post-up iptables -t nat -A POSTROUTING -s '100.64.43.0/24' -o eth0 -j MASQUERADE post-down iptables -t nat -D POSTROUTING -s '100.64.43.0/24' -o… text/html 2017-04-09T12:33:11+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/rclone-mount-systemd?rev=1491741191&do=diff Rclone mount with Systemd [Unit] Requires=network-online.target After=network-online.target [Service] SyslogIdentifier=my-rclone.service Type=simple ExecStartPre=/bin/mkdir -p /mnt/rclone ExecStart=/usr/bin/rclone mount remote:a/b/c /mnt/rclone --config /root/.rclone.conf --checkers 16 --dir-cache-time 10m --read-only ExecStop=/bin/fusermount -u /mnt/rclone Restart=on-abort [Install] WantedBy=multi-user.target text/html 2017-03-25T17:24:10+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/sudo-lecture?rev=1490462650&do=diff Always Show sudo Lectures Defaults lecture = always Defaults lecture_file = "/etc/sudo_lecture" We trust you have received the usual lecture from the local System Administrator. It usually boils down to these three things: #1) Respect the privacy of others. #2) Think before you type. #3) With great power comes great responsibility. text/html 2017-10-12T13:01:53+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/systemd-cheatsheet?rev=1507813313&do=diff Cheatsheet for Systemd Typical Service File [Unit] Description=orzBot After=network.target [Service] User=orzbot Group=orzbot SyslogIdentifier=orzbot.service ExecStart=/home/orzbot/.nvm/nvm-exec node /home/orzbot/orzbot/app.js WorkingDirectory=/home/orzbot/orzbot Environment=ORZBOT_TOKEN=ventuaeiornuvyiopwefuvgyu Environment=NODE_VERSION=8.1.0 Restart=always RestartSec=5s KillSignal=SIGINT TimeoutStartSec=10 TimeoutStopSec=120 [Install] WantedBy=multi-user.target text/html 2017-12-19T17:04:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/udev-persistent-device-symlink?rev=1513703089&do=diff Persistent symlinks for devices with udev * Locate the device: /dev/usb/hiddev0 root@misaka:~# ls /dev/usb/hiddev0 -l crw------- 1 root root 180, 0 Dec 19 13:00 /dev/usb/hiddev0 * Get device characteristics from udev. root@misaka:~# udevadm info --name=/dev/usb/hiddev0 --attribute-walk ...snip... looking at device '/devices/pci0000:00/0000:00:1d.1/usb9/9-2/9-2:1.0/usbmisc/hiddev0': KERNEL=="hiddev0" SUBSYSTEM=="usbmisc" DRIVER=="" looking at parent device '/devices/p… text/html 2017-03-25T16:19:25+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/ui-font?rev=1490458765&do=diff UI Font Windows OS X Linux zh-Hans Microsoft Yahei UI, Microsoft Yahei, NSimSun, NSimSun-ExtB, SimSun, SimSun-ExtB, sans-serif PingFang SC, Heiti SC, LiHei Pro, STHeiti, sans-serif Source Han Sans SC, Noto Sans CJK SC, WenQuanYi Zen Hei, sans-serif text/html 2017-04-09T12:32:56+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/unionfs-fuse-systemd?rev=1491741176&do=diff unionfs-fuse with Systemd [Unit] Requires=network-online.target After=network-online.target [Service] SyslogIdentifier=my-unionfs-fuse.service Type=forking ExecStartPre=/bin/mkdir -p /mnt/unionfs ExecStart=/usr/bin/unionfs-fuse -o cow,allow_other,use_ino,uid=1000,gid=1000,max_files=32768 /mnt/local=RW:/mnt/remote=RO /mnt/unionfs ExecStop=/bin/fusermount -u /mnt/unionfs Restart=on-abort [Install] WantedBy=multi-user.target text/html 2017-03-29T05:34:46+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/windows-language-capabilities?rev=1490765686&do=diff Force Install Windows Language Capabilities To get the list of available capabilities: DISM.exe /Online /Get-Capabilities Here're all the possible capabilities on Windows 10 1607 (Build 14393): DISM.exe /Online /Add-Capability /CapabilityName:Language.Basic~~~af-ZA~0.0.1.0 DISM.exe /Online /Add-Capability /CapabilityName:Language.Basic~~~ar-SA~0.0.1.0 DISM.exe /Online /Add-Capability /CapabilityName:Language.Basic~~~as-IN~0.0.1.0 DISM.exe /Online /Add-Capability /CapabilityName:Language.B… text/html 2017-03-26T04:09:22+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/zfs-on-linux-memory-limit?rev=1490501362&do=diff Limit ZFS on Linux Memory Usage echo "options zfs zfs_arc_max=1073741824" >> /etc/modprobe.d/zfs.conf echo 1073741824 > /sys/module/zfs/parameters/zfs_arc_max update-initramfs -u 1073741824 is 1 GiB. It is good to use at most 50 percent (which is the default) of the system memory for ZFS ARC to prevent performance shortage of the host. text/html 2017-03-26T05:20:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.orzfly.com/topics/zfs-on-linux-mount-raw-pool-image?rev=1490505648&do=diff Mount RAW Pool Image with ZFS on Linux Suppose you have backed up a ZFS pool with dd so you want to get some data from rpool.img now. Look at disk-image-mount-partition for more ways to mount patitions. Mounting * Mount image as loop device # losetup /dev/loop0 rpool.img