$ git clone https://github.com/asciinema/asciinema
$ cd asciinema
$ cargo build --release
  :
error: package `toml v0.8.23` cannot be built because it requires rustc 1.66 or newer, while the currently active rustc version is 1.63.0
Either upgrade to rustc 1.66 or newer, or use
cargo update -p toml@0.8.23 --precise ver
where `ver` is the latest version of `toml` supporting rustc 1.63.0

$ wget https://static.rust-lang.org/rustup/dist/armv7-unknown-linux-gnueabihf/rustup-init
    https://static.rust-lang.org/rustup/dist/armv7-unknown-linux-gnueabihf/rustup-init.sha256
$ sha256sum --check rustup-init.sha256
./rustup-init: OK
$ chmod u+x ./rustup-init

$ ./rustup-init
  :
Continue? (y/N) y
1) Proceed with standard installation (default - just press enter)
2) Customize installation
3) Cancel installation
>1
  :
info: installing component 'rustfmt'
info: default toolchain set to 'stable-armv7-unknown-linux-gnueabihf'

  stable-armv7-unknown-linux-gnueabihf installed - rustc 1.90.0 (1159e78c4 2025-09-14)


Rust is installed now. Great!

To get started you may need to restart your current shell.
This would reload your PATH environment variable to include
Cargo's bin directory ($HOME/.cargo/bin).

To configure your current shell, you need to source
the corresponding env file under $HOME/.cargo.

This is usually done by running one of the following (note the leading DOT):
. "$HOME/.cargo/env"            # For sh/bash/zsh/ash/dash/pdksh
source "$HOME/.cargo/env.fish"  # For fish
source $"($nu.home-path)/.cargo/env.nu"  # For nushell

$ which cargo
/usr/bin/cargo
$ /usr/bin/cargo -V
cargo 1.65.0
$ ~/.cargo/bin/cargo -V
warning: `/home/matoken/.cargo/config` is deprecated in favor of `config.toml`
note: if you need to support cargo 1.38 or earlier, you can symlink `config` to `config.toml`
cargo 1.90.0 (840b83a10 2025-07-30)

$ PATH=~/.cargo/bin:$PATH cargo build --release

    Finished `release` profile [optimized] target(s) in 39m 49s

$ target/release/asciinema
Terminal session recorder, streamer, and player

Usage: asciinema [OPTIONS] <COMMAND>

Commands:
  record   Record a terminal session [aliases: rec]
  stream   Stream a terminal session
  session  Record and stream a terminal session
  play     Play back a terminal session
  upload   Upload a recording to an asciinema server
  auth     Authenticate this CLI with an asciinema server account
  cat      Concatenate multiple recordings
  convert  Convert a recording to another format
  help     Print this message or the help of the given subcommand(s)

Options:
  -q, --quiet    Quiet mode - suppress diagnostic messages
  -h, --help     Print help (see more with '--help')
  -V, --version  Print version

$ target/release/asciinema --version
asciinema 3.0.0

$ target/release/asciinema stream
error: the following required arguments were not provided:
  <--local [<IP:PORT>]|--remote [<STREAM-ID|WS-URL>]>

Usage: asciinema stream <--local [<IP:PORT>]|--remote [<STREAM-ID|WS-URL>]>

For more information, try '--help'.
$ target/release/asciinema stream -h
Stream a terminal session

Usage: asciinema stream [OPTIONS] <--local [<IP:PORT>]|--remote [<STREAM-ID|WS-URL>]>

Options:
  -l, --local [<IP:PORT>]            Stream via the local HTTP server
  -r, --remote [<STREAM-ID|WS-URL>]  Stream via remote asciinema server
  -c, --command <COMMAND>            Command to start in the session [default: $SHELL]
  -I, --capture-input                Enable input (keyboard) capture
      --capture-env <VARS>           Comma-separated list of environment variables to capture
                                     [default: SHELL]
  -t, --title <TITLE>                Title of the session
      --headless                     Headless mode - don't use the terminal for I/O
      --window-size <COLSxROWS>      Override session's terminal window size
      --return                       Return the session's exit status
      --log-file <PATH>              Log file path
      --server-url <URL>             asciinema server URL
  -q, --quiet                        Quiet mode - suppress diagnostic messages
  -h, --help                         Print help (see more with '--help')

Examples:

  asciinema stream --local
      Streams a shell session via the local HTTP server listening on an ephemeral port on 127.0.0.1

  asciinema stream --local 0.0.0.0:8080
      Streams via the local HTTP server listening on port 8080 on all network interfaces

  asciinema stream --remote
      Streams via an asciinema server for public viewing

  asciinema stream -l -r
      Streams both locally and remotely simultaneously

  asciinema stream -r --command "ping asciinema.org"
      Streams execution of the ping command

  asciinema stream -r <ID> -t "Live coding"
      Streams via a remote server, reusing the existing stream ID and setting the stream title

$ target/release/asciinema stream --local 10.42.0.253:9999
::: asciinema session started
::: Live streaming at http://10.42.0.253:9999
::: Press <ctrl+d> or type 'exit' to end
$ ^d
exit
::: asciinema session ended

$ target/release/asciinema auth
Open the following URL in a web browser to authenticate this CLI with your asciinema.org user account:

https://asciinema.org/connect/abc123de-f345-7890-1234-abc123def456

This will associate all recordings uploaded from this machine with your account (including past uploads), and enable public live streaming via asciinema.org.

$ target/release/asciinema stream --remote
::: asciinema session started
::: Live streaming at https://asciinema.org/s/aBcDeFgHiJkLmNoP
::: Press <ctrl+d> or type 'exit' to end

error pulling image configuration: download failed after attempts=6: net/http: TLS handshake timeout

EOF

error pulling image configuration: download failed after attempts=6: dial tcp [2600:1f18:2148:bc02:9ace:ab18:c47e:e0a5]:443: i/o timeout

 ✘ sockpuppetbrowser Error Get "https://registry-1.docker.io/v2/": net/http: TLS handshake timeout                                                                                                                                       10.1s
Error response from daemon: Get "https://registry-1.docker.io/v2/": net/http: TLS handshake timeout

 ✘ browser-chrome Error   Head "https://registry-1.docker.io/v2/selenium/standalone-chrome/manifests/4": Get "https://auth.docker.io/token?scope=repository%3Aselenium%2Fstandalone-chrome%3Apull&service=regist...                      23.5s
 ✔ changedetection Pulled
                                                                                                                                       21.3s

Error response from daemon: Head "https://registry-1.docker.io/v2/selenium/standalone-chrome/manifests/4": Get "https://auth.docker.io/token?scope=repository%3Aselenium%2Fstandalone-chrome%3Apull&service=registry.docker.io": net/http: requ
est canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)

error pulling image configuration: download failed after attempts=6: net/http: TLS handshake timeout

Get "https://registry-1.docker.io/v2/selenium/standalone-chrome/manifests/sha256:553ff18c2055bc2134cd833211c352d601d91f43fd42a7559f94a28eba96a504": EOF

Get "https://registry-1.docker.io/v2/selenium/standalone-chrome/manifests/sha256:553ff18c2055bc2134cd833211c352d601d91f43fd42a7559f94a28eba96a504": EOF

dial tcp: lookup auth.docker.io: Temporary failure in name resolution

error pulling image configuration: download failed after attempts=6: dial tcp: lookup registry-1.docker.io: i/o timeout

error pulling image configuration: download failed after attempts=6: dial tcp: lookup registry-1.docker.io: i/o timeout

 ✘ sockpuppetbrowser Error Get "https://registry-1.docker.io/v2/": net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)                                                              15.0s
 ! browser-chrome          Interrupted                                                                                                                                                                                                   15.0s
 ! changedetection         Interrupted                                                                                                                                                                                                   17.3s
Error response from daemon: Get "https://registry-1.docker.io/v2/": net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)

Get "https://registry-1.docker.io/v2/selenium/standalone-chrome/blobs/sha256:e34a67f89d25bc77130abb059c42a2c47d18fd489056fa50da057d4b51507fac": dial tcp: lookup registry-1.docker.io: i/o timeout

   ⠹ e34a67f89d25 Downloading [========================================>          ]  131.6MB/164.3MB                                                                                                                                    284.2s

$ ls -lA /etc/docker/ (1)
合計 8
-rw------- 1 root root 244  7月 19  2024 key.json
$ umask 0077 (2)
$ umask
0077
$ echo '{
    "max-concur-downloads": 1
}' | sudo tee /etc/docker/daemon.json (3)
{
    "max-concurrent-downloads": 1
}
$ ls -lA /etc/docker/
合計 8
-rw------- 1 root root  38  8月 21 07:01 daemon.json
-rw------- 1 root root 244  7月 19  2024 key.json
$ sudo systemctl restart docker (4)

$ docker compose --file ./docker-compose.yml pull
[+] Pulling 43/43
 ✔ sockpuppetbrowser Pulled                                                                                                                                                                                                               3.5s
 ✔ browser-chrome Pulled                                                                                                                                                                                                               1394.0s
   ✔ b71466b94f26 Already exists                                                                                                                                                                                                          0.0s
   ✔ e34a67f89d25 Already exists                                                                                                                                                                                                          0.0s
   ✔ 75d85e0261db Already exists                                                                                                                                                                                                          0.0s
   ✔ 939d8ca73113 Already exists                                                                                                                                                                                                          0.0s
   ✔ 6186010a47ee Already exists                                                                                                                                                                                                          0.0s
   ✔ 27714f768b43 Already exists                                                                                                                                                                                                          0.0s
   ✔ 916b96ca33ba Already exists                                                                                                                                                                                                          0.0s
   ✔ 04aa3410ccc8 Already exists                                                                                                                                                                                                          0.0s
   ✔ bdb59075b1d5 Already exists                                                                                                                                                                                                          0.0s
   ✔ 2df770ff8fc0 Already exists                                                                                                                                                                                                          0.0s
   ✔ 54ac28d956cc Already exists                                                                                                                                                                                                          0.0s
   ✔ c44f6dc55fed Already exists                                                                                                                                                                                                          0.0s
   ✔ 5aff9b4a47b1 Already exists                                                                                                                                                                                                          0.0s
   ✔ b1b7bf4d2165 Already exists                                                                                                                                                                                                          0.0s
   ✔ 24f77931a43f Already exists                                                                                                                                                                                                          0.0s
   ✔ 6c2a20e23e29 Already exists                                                                                                                                                                                                          0.0s
   ✔ 1876ab010adb Already exists                                                                                                                                                                                                          0.0s
   ✔ 3e2e63824644 Already exists                                                                                                                                                                                                          0.0s
   ✔ 422e43c124fc Already exists                                                                                                                                                                                                          0.0s
   ✔ 2f170438d2dd Already exists                                                                                                                                                                                                          0.0s
   ✔ b2b509664d5c Pull complete                                                                                                                                                                                                         649.2s
   ✔ d1699bb66466 Pull complete                                                                                                                                                                                                         815.8s
   ✔ 5c8f9ce7ebce Pull complete                                                                                                                                                                                                         821.8s
   ✔ 597064b9d874 Pull complete                                                                                                                                                                                                         826.8s
   ✔ 34893f441ecf Pull complete                                                                                                                                                                                                         828.3s
   ✔ 9e5143f86271 Pull complete                                                                                                                                                                                                         829.8s
   ✔ 84388cffd066 Pull complete                                                                                                                                                                                                         840.2s
   ✔ 9d6965976ee5 Pull complete                                                                                                                                                                                                        1322.8s
   ✔ 2046aa7c3ddc Pull complete                                                                                                                                                                                                        1322.8s
   ✔ c834abc7e6bf Pull complete                                                                                                                                                                                                        1323.3s
   ✔ 23f3e15ccb79 Pull complete                                                                                                                                                                                                        1324.8s
   ✔ 57a77ef3c897 Pull complete                                                                                                                                                                                                        1353.7s
   ✔ b38fd1040849 Pull complete                                                                                                                                                                                                        1368.1s
   ✔ 18fd3cb83a78 Pull complete                                                                                                                                                                                                        1380.9s
   ✔ ce86c34af927 Pull complete                                                                                                                                                                                                        1383.7s
   ✔ 6efed1a6a8f0 Pull complete                                                                                                                                                                                                        1385.1s
   ✔ 9fc8549fc5d4 Pull complete                                                                                                                                                                                                        1386.5s
   ✔ 1b3b81dbe4ce Pull complete                                                                                                                                                                                                        1388.0s
   ✔ acbe3debc1b0 Pull complete                                                                                                                                                                                                        1389.3s
   ✔ 2b0eb12e590f Pull complete                                                                                                                                                                                                        1390.6s
 ✔ changedetection Pulled
 ----

ということで2日くらい失敗を繰り返していたpullが1回で通りました．
しばらくはこの設定のままにしておこうと思います．


.環境

$ cargo install --locked zellij

$ git clone https://github.com/zellij-org/zellij (1)
$ cd zellij
$ git checkout v0.43.0 (2)
$ cargo xtask make -r (3)
  :
Could not find `protoc` installation and this build crate cannot proceed without (4)
Contthis knowledge. If `protoc` is installed and this crate had trouble finding
    it, you can set the `PROTOC` environment variable with the specific path to your11 [1,328 kB]
  :
$ sudo apt install protobuf-compiler (5)
$ cargo xtask make -r (6)
$ ./target/release/zellij --version (7)
zellij 0.43.0

$ ./target/release/zellij web --create-token
Created token successfully

token_1: f964e7a4-0c8d-4652-b92f-23168161b3b4

$ ./target/release/zellij web --list-tokens
token_1: created at 2025-08-11 21:19:18
token_2: created at 2025-08-12 10:35:47

$ ./target/release/zellij web --revoke-token token_1
Successfully revoked token.

$ ./target/release/zellij web
Web Server started on 127.0.0.1 port 8082

$ mkdir ~/.config/zellij
$ zellij setup --dump-config > ~/.config/zellij/config.kdl

5$ echo '// WebServer
> web_server true' | tee -a ~/.config/zellij/config.kdl

$ ngrok http 8082

$ ./target/release/zellij --version
zellij 0.43.0
$ dpkg-query -W rustup
rustup  1.27.1-4
$ lsb_release -dr
Description:    Debian GNU/Linux forky/sid
Release:        n/a
$ arch
x86_64

$ ssh ${XSERVER_VPS_IP} -l root -i ~/.ssh/id_ed25519
ssh: connect to host ${XSERVER_VPS_IP} port 22: Connection refused

-bash: warning: setlocale: LC_ALL: cannot change locale (ja_JP.UTF-8)
_____________________________________________________________________
WARNING! Your environment specifies an invalid locale.
 The unknown environment variables are:
   LC_CTYPE=ja_JP.UTF-8 LC_MESSAGES=ja_JP.UTF-8 LC_ALL=ja_JP.UTF-8
 This can affect your user experience significantly, including the
 ability to manage packages. You may install the locales by running:

 sudo dpkg-reconfigure locales

 and select the missing language. Alternatively, you can install the
 locales-all package:

 sudo apt-get install locales-all

To disable this message for all users, run:
   sudo touch /var/lib/cloud/instance/locale-check.skip
_____________________________________________________________________

$ locale
LANG=en_US.UTF-8
LANGUAGE=
LC_CTYPE="ja_JP.UTF-8"
LC_NUMERIC="ja_JP.UTF-8"
LC_TIME="ja_JP.UTF-8"
LC_COLLATE="ja_JP.UTF-8"
LC_MONETARY="ja_JP.UTF-8"
LC_MESSAGES="ja_JP.UTF-8"
LC_PAPER="ja_JP.UTF-8"
LC_NAME="ja_JP.UTF-8"
LC_ADDRESS="ja_JP.UTF-8"
LC_TELEPHONE="ja_JP.UTF-8"
LC_MEASUREMENT="ja_JP.UTF-8"
LC_IDENTIFICATION="ja_JP.UTF-8"
LC_ALL=ja_JP.UTF-8
$ env | grep LC
LC_TIME=en_US.UTf-8
LC_ALL=ja_JP.UTF-8
LC_NUMERIC=en_US.UTf-8

$ whoami (1)
debian
$ sudo passwd root -d (2)
$ sudo grep ^root: /etc/shadow (3)
root::20285:0:99999:7:::
$ sudo adduser ${OPERATOR} (4)
$ sudo adduser ${OPERATOR} sudo (5)
$ grep ^sudo: /etc/group (6)
sudo:x:27:debian,${OPERATOR}
$ sudo cp -r ~/.ssh ~${OPERATOR}/ (7)
$ sudo chown -R ${OPERATOR}:${OPERATOR} ~${OPERATOR}/.ssh

$ ssh ${XSERVER_VPS_IP} -l ${OPERATOR} -i ~/.ssh/id_ed25519
$ sudo -v

$ sudo diff -u /etc/ssh/sshd_config.ucf-dist /etc/ssh/sshd_config
--- /etc/ssh/sshd_config.ucf-dist       2025-07-16 15:28:39.245927761 +0900
+++ /etc/ssh/sshd_config        2025-07-16 18:33:10.502522166 +0900
@@ -11,7 +11,7 @@

 Include /etc/ssh/sshd_config.d/*.conf

-#Port 22
+Port ${SSH_PORT} (1)
 #AddressFamily any
 #ListenAddress 0.0.0.0
 #ListenAddress ::
@@ -30,12 +30,13 @@
 # Authentication:

 #LoginGraceTime 2m
-#PermitRootLogin prohibit-password
+PermitRootLogin no (2)
 #StrictModes yes
 #MaxAuthTries 6
 #MaxSessions 10

 #PubkeyAuthentication yes

 # Expect .ssh/authorized_keys2 to be disregarded by default in future.
 #AuthorizedKeysFile    .ssh/authorized_keys .ssh/authorized_keys2
@@ -115,8 +116,9 @@
 Subsystem      sftp    /usr/lib/openssh/sftp-server

 # Example of overriding settings on a per-user basis
-#Match User anoncvs
+Match User ${OPERATOR} (3)
 #      X11Forwarding no
 #      AllowTcpForwarding no
 #      PermitTTY no
 #      ForceCommand cvs server
$ sudo /sbin/sshd -t

$ sudo /sbin/sshd -dD

$ ssh ${XSERVER_VPS_IP} -l ${OPERATOR} -i ~/.ssh/id_ed25519 -p ${SSH_PORT}

$ sudo service ssh restart

$ sudo sh -c "apt update && apt upgrade"
$ sudo shutdown -r now

$ sudo apt install make gcc
$ cd `mktemp -d`
$ wget https://github.com/kdlucas/byte-unixbench/archive/refs/tags/v6.0.0.tar.gz
$ tar xf v6.0.0.tar.gz
$ cd byte-unixbench-6.0.0/UnixBench
$ ./Run

$ awk -F: '{if ($3 < 1000) {print $1 }}' /etc/passwd | head
root
daemon
bin
sys
sync
games
man
lp
mail
news

$ awk -F: '{if ($3 < 1000) {print $1 }}' /etc/passwd | head | grep -A2 -- ^man$
man
lp
mail

$ awk -F: '{if ($3 < 1000) {print $1 }}' /etc/passwd | head | grep -B2 -- ^man$
sync
games
man

$ awk -F: '{if ($3 < 1000) {print $1 }}' /etc/passwd | head | grep -C2 -- ^man$
sync
games
man
lp
mail

$ awk -F: '{if ($3 < 1000) {print $1 }}' /etc/passwd | head | grep -B1 -A2 -- ^man$
games
man
lp
mail

$ awk -F: '{if ($3 < 1000) {print $1 }}' /etc/passwd | head | grep -A99 -- ^man$
man
lp
mail
news

$ awk -F: '{if ($3 < 1000) {print $1 }}' /etc/passwd | head | ugrep -A-1 -- ^man$
man
lp
mail
news

$ awk -F: '{if ($3 < 1000) {print $1 }}' /etc/passwd | head | ugrep -B-1 -- ^man$
ugrep: warning: exception while searching (standard input): Inappropriate ioctl for device

$ awk -F: '{if ($3 < 1000) {print $1 }}' /etc/passwd | head | tac | ugrep -A-1 -- ^man$ | tac
root
daemon
bin
sys
sync
games
man

$ awk -F: '{if ($3 < 1000) {print $1 }}' /etc/passwd | head | sed -n '/^man$/,$p'
man
lp
mail
news

$ awk -F: '{if ($3 < 1000) {print $1 }}' /etc/passwd | head | awk '/^man$/',0
man
lp
mail
news

$ awk -F: '{if ($3 < 1000) {print $1 }}' /etc/passwd | head | perl -ne "print if /^man$/ .. eof;"
man
lp
mail
news

$ dpkg-query -W grep ugrep sed gawk perl
gawk    1:5.3.2-1
grep    3.11-4
perl    5.40.1-3
sed     4.9-2
ugrep   7.4.2+dfsg-1
$ lsb_release -dr
Description:    Debian GNU/Linux 13 (trixie)
Release:        13
$ arch
x86_64

$ cha
Chawan browser v0.2.0 (release, sandboxed)
Usage: cha [options] [URL(s) or file(s)...]
Options:
    --                          Interpret all following arguments as URLs
    -c, --css <stylesheet>      Pass stylesheet (e.g. -c 'a{color: blue}')
    -d, --dump                  Print page to stdout
    -h, --help                  Print this usage message
    -o, --opt <config>          Pass config options (e.g. -o 'page.q="quit()"')
    -r, --run <script/file>     Run passed script or file
    -v, --version               Print version information
    -C, --config <file>         Override config path
    -I, --input-charset <enc>   Specify document charset
    -M, --monochrome            Set color-mode to 'monochrome'
    -O, --display-charset <enc> Specify display charset
    -T, --type <type>           Specify content mime type
    -V, --visual                Visual startup mode

┌──────────────────────────────┐
│ Select text              (v) │
│ Copy selection           (y) │
│ Previous buffer          (,) │
│ Next buffer              (.) │
│ Discard buffer           (D) │
│ ──────────────────────────── │
│ View image               (I) │
│ Peek                     (u) │
│ Copy link               (yu) │
│ Copy image link         (yI) │
│ Paste link             (M-p) │
│ Reload                   (U) │
│ ──────────────────────────── │
│ Save link             (sC-m) │
│ View source              (\) │
│ Edit source             (sE) │
│ Save source             (sS) │
│ ──────────────────────────── │
│ Linkify URLs             (:) │
│ Toggle images          (M-i) │
│ Toggle JS & reload     (M-j) │
│ Toggle cookie & reload (M-k) │
│ ──────────────────────────── │
│ Bookmark page          (M-a) │
│ Open bookmarks         (M-b) │
│ Open history           (C-h) │
└──────────────────────────────┘

[buffer]
images = true
scripting = true

$ git diff
diff --git a/src/satellite_group.rs b/src/satellite_group.rs
index 88bbce8..b895b54 100644
--- a/src/satellite_group.rs
+++ b/src/satellite_group.rs
@@ -51,6 +51,7 @@ pub enum SatelliteGroup {
     #[strum(to_string = "Radar calibration")]
     RadarCalibration,
     CubeSats,
+    Arase,
 }

 impl SatelliteGroup {
@@ -124,6 +125,7 @@ impl SatelliteGroup {
             Self::Iss => Some("1998-067A"),
             Self::Css => Some("2021-035A"),
             Self::Dfh1 => Some("1970-034A"),
+            Self::Arase => Some("2016-080A"),
             _ => None,
         }
     }

$ cargo build
$ target/debug/tracker

$ git reset --hard

$ git diff src/satellite_group.rs
diff --git a/src/satellite_group.rs b/src/satellite_group.rs
index 88bbce8..33c5d0b 100644
--- a/src/satellite_group.rs
+++ b/src/satellite_group.rs
@@ -37,6 +37,9 @@ pub enum SatelliteGroup {
     Galileo,
     Beidou,

+    // Communications Satellites
+    Kuiper,
+
     // Scientific satellites
     #[strum(to_string = "Space & Earth Science")]
     SpaceEarthScience,
@@ -141,6 +144,7 @@ impl SatelliteGroup {
             Self::Glonass => Some("glo-ops"),
             Self::Galileo => Some("galileo"),
             Self::Beidou => Some("beidou"),
+            Self::Kuiper => Some("kuiper"),
             Self::SpaceEarthScience => Some("science"),
             Self::Geodetic => Some("geodetic"),
             Self::Engineering => Some("engineering"),

$ cargo build
$ target/debug/tracker

$ speedtest

   Speedtest by Ookla

[error] Error: [101] Network unreachable
[error] Error: [0] Cannot read from socket:
      Server: Rakuten Mobile, Inc - Tokyo (id: 24333)
         ISP: Rakuten Mobile Network
Idle Latency:   282.83 ms   (jitter: 285.83ms, low: 89.02ms, high: 682.02ms)
     Latency: FAILED
[error] Cannot read from socket:
$ speedtest

   Speedtest by Ookla

[error] Error: [101] Network unreachable
      Server: サーバーならDDPS.jp - Tokyo (id: 60324)
         ISP: Rakuten Mobile Network
Idle Latency:    77.39 ms   (jitter: 9.61ms, low: 74.14ms, high: 88.87ms)
    Download:     2.20 Mbps (data used: 3.1 MB)
               1247.89 ms   (jitter: 91.15ms, low: 344.84ms, high: 3091.08ms)
      Upload: FAILED                                            cy: 3021.95 ms
[error] Cannot write:
$ speedtest

   Speedtest by Ookla

[error] Error: [0] Timeout occurred in connect.
      Server: IPA CyberLab - Bunkyo (id: 14623)
         ISP: Rakuten Mobile Network
Idle Latency:    75.91 ms   (jitter: 19.29ms, low: 57.58ms, high: 85.05ms)
    Download:     4.48 Mbps (data used: 8.1 MB)
                767.78 ms   (jitter: 90.57ms, low: 190.29ms, high: 1477.12ms)
      Upload:     0.27 Mbps (data used: 388.3 kB)
 Packet Loss:     0.0%
  Result URL: https://www.speedtest.net/result/c/40433a4f-d346-4e5c-b01e-a69d3a1efc63

$ ping -c 10 www.google.com
PING www.google.com (2404:6800:4004:81e::2004) 56 data bytes
64 bytes from nrt20s20-in-x04.1e100.net (2404:6800:4004:81e::2004): icmp_seq=1 ttl=56 time=68.7 ms
64 bytes from nrt20s20-in-x04.1e100.net (2404:6800:4004:81e::2004): icmp_seq=2 ttl=56 time=92.5 ms
64 bytes from nrt20s20-in-x04.1e100.net (2404:6800:4004:81e::2004): icmp_seq=3 ttl=56 time=88.3 ms
64 bytes from nrt20s20-in-x04.1e100.net (2404:6800:4004:81e::2004): icmp_seq=4 ttl=56 time=84.0 ms
64 bytes from nrt20s20-in-x04.1e100.net (2404:6800:4004:81e::2004): icmp_seq=5 ttl=56 time=96.3 ms
64 bytes from nrt20s20-in-x04.1e100.net (2404:6800:4004:81e::2004): icmp_seq=6 ttl=56 time=65.6 ms
64 bytes from nrt20s20-in-x04.1e100.net (2404:6800:4004:81e::2004): icmp_seq=7 ttl=56 time=91.3 ms
64 bytes from nrt20s20-in-x04.1e100.net (2404:6800:4004:81e::2004): icmp_seq=8 ttl=56 time=79.9 ms
64 bytes from nrt20s20-in-x04.1e100.net (2404:6800:4004:81e::2004): icmp_seq=9 ttl=56 time=125 ms
64 bytes from nrt20s20-in-x04.1e100.net (2404:6800:4004:81e::2004): icmp_seq=10 ttl=56 time=89.9 ms

--- www.google.com ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 9015ms
rtt min/avg/max/mdev = 65.621/88.162/125.154/15.622 ms

$ httping -c 10 www.google.com
PING www.google.com:80 (/):
could not connect (Network is unreachable)
connect time out
connect time out
could not connect (Network is unreachable)
could not connect (Network is unreachable)
connect time out
connect time out
connect time out
connect time out
could not connect (Network is unreachable)
--- http://www.google.com/ ping statistics ---
10 connects, 0 ok, 100.00% failed, time 222099ms

$ ssh matoken.org
ssh: connect to host 153.121.44.87 port 2222: Connection timed out
$ ssh matoken.org
ssh: connect to host 153.121.44.87 port 2222: Network is unreachable
$ ssh matoken.org
ssh: connect to host 153.121.44.87 port 2222: Network is unreachable