解決brew安裝curl: Failed to connect to raw.githubusercontent.com port:443

安裝homebrew報錯“curl: (7) Failed to connect to raw.githubusercontent.com port 443: Connectio”如何解決？碼筆記分享MAC安裝brew報錯的解決方法：

安裝homebrew報錯的解決方法

安裝homebrew，執(zhí)行brew安裝命令后：

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"

報錯，如下：

curl: (7) Failed to connect to raw.githubusercontent.com port 443: Connectio

如何解決？方法如下：

  • 1. 打開下方鏈接地址

地址：https://raw.githubusercontent.com/Homebrew/install/master/install

  • 2. 保存打開后的內(nèi)容

githubusercontent

保存網(wǎng)頁內(nèi)容，ctrl+s保存。* 3. 保存后的文件命名brew_install.rb

第2步保存文件命名為：brew_install.rb，請注意文件后綴是.rb。

保存后的brew_install.rb文件放在哪里都行，能找到就行。

  • 4. 找到文件目錄執(zhí)行命令

進入brew_install.rb所在目錄，執(zhí)行命令：ruby brew_install.rb

這個方法安裝brew有點慢，brew需要從官網(wǎng)下載，碼筆記這里測試brew下載速度只有十幾k/秒，實際請以當(dāng)前網(wǎng)絡(luò)為準(zhǔn)。

或者直接運行腳本，把一下這段腳本保存到一個install.sh的文件，然后通過控制臺運行

#!/bin/bash
set -u

# First check if the OS is Linux.
if [[ "$(uname)" = "Linux" ]]; then
  HOMEBREW_ON_LINUX=1
fi

# On macOS, this script installs to /usr/local only.
# On Linux, it installs to /home/linuxbrew/.linuxbrew if you have sudo access
# and ~/.linuxbrew otherwise.
# To install elsewhere (which is unsupported)
# you can untar https://github.com/Homebrew/brew/tarball/master
# anywhere you like.
if [[ -z "${HOMEBREW_ON_LINUX-}" ]]; then
  HOMEBREW_PREFIX="/usr/local"
  HOMEBREW_REPOSITORY="/usr/local/Homebrew"
  HOMEBREW_CACHE="${HOME}/Library/Caches/Homebrew"

  STAT="stat -f"
  CHOWN="/usr/sbin/chown"
  CHGRP="/usr/bin/chgrp"
  GROUP="admin"
  TOUCH="/usr/bin/touch"
else
  HOMEBREW_PREFIX_DEFAULT="/home/linuxbrew/.linuxbrew"
  HOMEBREW_CACHE="${HOME}/.cache/Homebrew"

  STAT="stat --printf"
  CHOWN="/bin/chown"
  CHGRP="/bin/chgrp"
  GROUP="$(id -gn)"
  TOUCH="/bin/touch"
fi
BREW_REPO="https://github.com/Homebrew/brew"

# TODO: bump version when new macOS is released
MACOS_LATEST_SUPPORTED="10.15"
# TODO: bump version when new macOS is released
MACOS_OLDEST_SUPPORTED="10.13"

# no analytics during installation
export HOMEBREW_NO_ANALYTICS_THIS_RUN=1
export HOMEBREW_NO_ANALYTICS_MESSAGE_OUTPUT=1

# string formatters
if [[ -t 1 ]]; then
  tty_escape() { printf "\033[%sm" "$1"; }
else
  tty_escape() { :; }
fi
tty_mkbold() { tty_escape "1;$1"; }
tty_underline="$(tty_escape "4;39")"
tty_blue="$(tty_mkbold 34)"
tty_red="$(tty_mkbold 31)"
tty_bold="$(tty_mkbold 39)"
tty_reset="$(tty_escape 0)"

have_sudo_access() {
  local -a args
  if [[ -n "${SUDO_ASKPASS-}" ]]; then
    args=("-A")
  fi

  if [[ -z "${HAVE_SUDO_ACCESS-}" ]]; then
    if [[ -n "${args[*]-}" ]]; then
      /usr/bin/sudo "${args[@]}" -l mkdir &>/dev/null
    else
      /usr/bin/sudo -l mkdir &>/dev/null
    fi
    HAVE_SUDO_ACCESS="$?"
  fi

  if [[ -z "${HOMEBREW_ON_LINUX-}" ]] && [[ "$HAVE_SUDO_ACCESS" -ne 0 ]]; then
    abort "Need sudo access on macOS (e.g. the user $USER to be an Administrator)!"
  fi

  return "$HAVE_SUDO_ACCESS"
}

shell_join() {
  local arg
  printf "%s" "$1"
  shift
  for arg in "$@"; do
    printf " "
    printf "%s" "${arg// /\ }"
  done
}

chomp() {
  printf "%s" "${1/"$'\n'"/}"
}

ohai() {
  printf "${tty_blue}==>${tty_bold} %s${tty_reset}\n" "$(shell_join "$@")"
}

warn() {
  printf "${tty_red}Warning${tty_reset}: %s\n" "$(chomp "$1")"
}

abort() {
  printf "%s\n" "$1"
  exit 1
}

execute() {
  if ! "$@"; then
    abort "$(printf "Failed during: %s" "$(shell_join "$@")")"
  fi
}

execute_sudo() {
  local -a args=("$@")
  if [[ -n "${SUDO_ASKPASS-}" ]]; then
    args=("-A" "${args[@]}")
  fi
  if have_sudo_access; then
    ohai "/usr/bin/sudo" "${args[@]}"
    execute "/usr/bin/sudo" "${args[@]}"
  else
    ohai "${args[@]}"
    execute "${args[@]}"
  fi
}

getc() {
  local save_state
  save_state=$(/bin/stty -g)
  /bin/stty raw -echo
  IFS= read -r -n 1 -d '' "$@"
  /bin/stty "$save_state"
}

wait_for_user() {
  local c
  echo
  echo "Press RETURN to continue or any other key to abort"
  getc c
  # we test for \r and \n because some stuff does \r instead
  if ! [[ "$c" == $'\r' || "$c" == $'\n' ]]; then
    exit 1
  fi
}

major_minor() {
  echo "${1%%.*}.$(
    x="${1#*.}"
    echo "${x%%.*}"
  )"
}

if [[ -z "${HOMEBREW_ON_LINUX-}" ]]; then
  macos_version="$(major_minor "$(/usr/bin/sw_vers -productVersion)")"
fi

version_gt() {
  [[ "${1%.*}" -gt "${2%.*}" ]] || [[ "${1%.*}" -eq "${2%.*}" && "${1#*.}" -gt "${2#*.}" ]]
}
version_ge() {
  [[ "${1%.*}" -gt "${2%.*}" ]] || [[ "${1%.*}" -eq "${2%.*}" && "${1#*.}" -ge "${2#*.}" ]]
}
version_lt() {
  [[ "${1%.*}" -lt "${2%.*}" ]] || [[ "${1%.*}" -eq "${2%.*}" && "${1#*.}" -lt "${2#*.}" ]]
}

should_install_git() {
  if [[ $(command -v git) ]]; then
    return 1
  fi
}

should_install_command_line_tools() {
  if [[ -n "${HOMEBREW_ON_LINUX-}" ]]; then
    return 1
  fi

  if version_gt "$macos_version" "10.13"; then
    ! [[ -e "/Library/Developer/CommandLineTools/usr/bin/git" ]]
  else
    ! [[ -e "/Library/Developer/CommandLineTools/usr/bin/git" ]] ||
      ! [[ -e "/usr/include/iconv.h" ]]
  fi
}

get_permission() {
  $STAT "%A" "$1"
}

user_only_chmod() {
  [[ -d "$1" ]] && [[ "$(get_permission "$1")" != "755" ]]
}

exists_but_not_writable() {
  [[ -e "$1" ]] && ! [[ -r "$1" && -w "$1" && -x "$1" ]]
}

get_owner() {
  $STAT "%u" "$1"
}

file_not_owned() {
  [[ "$(get_owner "$1")" != "$(id -u)" ]]
}

get_group() {
  $STAT "%g" "$1"
}

file_not_grpowned() {
  [[ " $(id -G "$USER") " != *" $(get_group "$1") "* ]]
}

# USER isn't always set so provide a fall back for the installer and subprocesses.
if [[ -z "${USER-}" ]]; then
  USER="$(chomp "$(id -un)")"
  export USER
fi

# Invalidate sudo timestamp before exiting (if it wasn't active before).
if ! /usr/bin/sudo -n -v 2>/dev/null; then
  trap '/usr/bin/sudo -k' EXIT
fi

# Things can fail later if `pwd` doesn't exist.
# Also sudo prints a warning message for no good reason
cd "/usr" || exit 1

####################################################################### script
if should_install_git; then
  abort "$(
    cat <<EOABORT
You must install Git before installing Homebrew. See:
  ${tty_underline}https://docs.brew.sh/Installation${tty_reset}
EOABORT
  )"
fi

if [[ -z "${HOMEBREW_ON_LINUX-}" ]]; then
  have_sudo_access
else
  if [[ -n "${CI-}" ]] || [[ -w "$HOMEBREW_PREFIX_DEFAULT" ]] || [[ -w "/home/linuxbrew" ]] || [[ -w "/home" ]]; then
    HOMEBREW_PREFIX="$HOMEBREW_PREFIX_DEFAULT"
  else
    trap exit SIGINT
    if [[ $(/usr/bin/sudo -n -l mkdir 2>&1) != *"mkdir"* ]]; then
      ohai "Select the Homebrew installation directory"
      echo "- ${tty_bold}Enter your password${tty_reset} to install to ${tty_underline}${HOMEBREW_PREFIX_DEFAULT}${tty_reset} (${tty_bold}recommended${tty_reset})"
      echo "- ${tty_bold}Press Control-D${tty_reset} to install to ${tty_underline}$HOME/.linuxbrew${tty_reset}"
      echo "- ${tty_bold}Press Control-C${tty_reset} to cancel installation"
    fi
    if have_sudo_access; then
      HOMEBREW_PREFIX="$HOMEBREW_PREFIX_DEFAULT"
    else
      HOMEBREW_PREFIX="$HOME/.linuxbrew"
    fi
    trap - SIGINT
  fi
  HOMEBREW_REPOSITORY="${HOMEBREW_PREFIX}/Homebrew"
fi

if [[ "$UID" == "0" ]]; then
  abort "Don't run this as root!"
elif [[ -d "$HOMEBREW_PREFIX" && ! -x "$HOMEBREW_PREFIX" ]]; then
  abort "$(
    cat <<EOABORT
The Homebrew prefix, ${HOMEBREW_PREFIX}, exists but is not searchable. If this is
not intentional, please restore the default permissions and try running the
installer again:
    sudo chmod 775 ${HOMEBREW_PREFIX}
EOABORT
  )"
fi

if [[ -z "${HOMEBREW_ON_LINUX-}" ]]; then
  if version_lt "$macos_version" "10.7"; then
    abort "$(
      cat <<EOABORT
Your Mac OS X version is too old. See:
  ${tty_underline}https://github.com/mistydemeo/tigerbrew${tty_reset}
EOABORT
    )"
  elif version_lt "$macos_version" "10.9"; then
    abort "Your OS X version is too old"
  elif version_gt "$macos_version" "$MACOS_LATEST_SUPPORTED" ||
    version_lt "$macos_version" "$MACOS_OLDEST_SUPPORTED"; then
    who="We"
    what=""
    if version_gt "$macos_version" "$MACOS_LATEST_SUPPORTED"; then
      what="pre-release version"
    else
      who+=" (and Apple)"
      what="old version"
    fi
    ohai "You are using macOS ${macos_version}."
    ohai "${who} do not provide support for this ${what}."

    echo "$(
      cat <<EOS
This installation may not succeed.
After installation, you will encounter build failures with some formulae.
Please create pull requests instead of asking for help on Homebrew\'s GitHub,
Discourse, Twitter or IRC. You are responsible for resolving any issues you
experience while you are running this ${what}.
EOS
    )
"
  fi
fi

ohai "This script will install:"
echo "${HOMEBREW_PREFIX}/bin/brew"
echo "${HOMEBREW_PREFIX}/share/doc/homebrew"
echo "${HOMEBREW_PREFIX}/share/man/man1/brew.1"
echo "${HOMEBREW_PREFIX}/share/zsh/site-functions/_brew"
echo "${HOMEBREW_PREFIX}/etc/bash_completion.d/brew"
echo "${HOMEBREW_REPOSITORY}"

# Keep relatively in sync with
# https://github.com/Homebrew/brew/blob/master/Library/Homebrew/keg.rb
directories=(bin etc include lib sbin share opt var
  Frameworks
  etc/bash_completion.d lib/pkgconfig
  share/aclocal share/doc share/info share/locale share/man
  share/man/man1 share/man/man2 share/man/man3 share/man/man4
  share/man/man5 share/man/man6 share/man/man7 share/man/man8
  var/log var/homebrew var/homebrew/linked
  bin/brew)
group_chmods=()
for dir in "${directories[@]}"; do
  if exists_but_not_writable "${HOMEBREW_PREFIX}/${dir}"; then
    group_chmods+=("${HOMEBREW_PREFIX}/${dir}")
  fi
done

# zsh refuses to read from these directories if group writable
directories=(share/zsh share/zsh/site-functions)
zsh_dirs=()
for dir in "${directories[@]}"; do
  zsh_dirs+=("${HOMEBREW_PREFIX}/${dir}")
done

directories=(bin etc include lib sbin share var opt
  share/zsh share/zsh/site-functions
  var/homebrew var/homebrew/linked
  Cellar Caskroom Homebrew Frameworks)
mkdirs=()
for dir in "${directories[@]}"; do
  if ! [[ -d "${HOMEBREW_PREFIX}/${dir}" ]]; then
    mkdirs+=("${HOMEBREW_PREFIX}/${dir}")
  fi
done

user_chmods=()
if [[ "${#zsh_dirs[@]}" -gt 0 ]]; then
  for dir in "${zsh_dirs[@]}"; do
    if user_only_chmod "${dir}"; then
      user_chmods+=("${dir}")
    fi
  done
fi

chmods=()
if [[ "${#group_chmods[@]}" -gt 0 ]]; then
  chmods+=("${group_chmods[@]}")
fi
if [[ "${#user_chmods[@]}" -gt 0 ]]; then
  chmods+=("${user_chmods[@]}")
fi

chowns=()
chgrps=()
if [[ "${#chmods[@]}" -gt 0 ]]; then
  for dir in "${chmods[@]}"; do
    if file_not_owned "${dir}"; then
      chowns+=("${dir}")
    fi
    if file_not_grpowned "${dir}"; then
      chgrps+=("${dir}")
    fi
  done
fi

if [[ "${#group_chmods[@]}" -gt 0 ]]; then
  ohai "The following existing directories will be made group writable:"
  printf "%s\n" "${group_chmods[@]}"
fi
if [[ "${#user_chmods[@]}" -gt 0 ]]; then
  ohai "The following existing directories will be made writable by user only:"
  printf "%s\n" "${user_chmods[@]}"
fi
if [[ "${#chowns[@]}" -gt 0 ]]; then
  ohai "The following existing directories will have their owner set to ${tty_underline}${USER}${tty_reset}:"
  printf "%s\n" "${chowns[@]}"
fi
if [[ "${#chgrps[@]}" -gt 0 ]]; then
  ohai "The following existing directories will have their group set to ${tty_underline}${GROUP}${tty_reset}:"
  printf "%s\n" "${chgrps[@]}"
fi
if [[ "${#mkdirs[@]}" -gt 0 ]]; then
  ohai "The following new directories will be created:"
  printf "%s\n" "${mkdirs[@]}"
fi

if should_install_command_line_tools; then
  ohai "The Xcode Command Line Tools will be installed."
fi

if [[ -t 0 && -z "${CI-}" ]]; then
  wait_for_user
fi

if [[ -d "${HOMEBREW_PREFIX}" ]]; then
  if [[ "${#chmods[@]}" -gt 0 ]]; then
    execute_sudo "/bin/chmod" "u+rwx" "${chmods[@]}"
  fi
  if [[ "${#group_chmods[@]}" -gt 0 ]]; then
    execute_sudo "/bin/chmod" "g+rwx" "${group_chmods[@]}"
  fi
  if [[ "${#user_chmods[@]}" -gt 0 ]]; then
    execute_sudo "/bin/chmod" "755" "${user_chmods[@]}"
  fi
  if [[ "${#chowns[@]}" -gt 0 ]]; then
    execute_sudo "$CHOWN" "$USER" "${chowns[@]}"
  fi
  if [[ "${#chgrps[@]}" -gt 0 ]]; then
    execute_sudo "$CHGRP" "$GROUP" "${chgrps[@]}"
  fi
else
  execute_sudo "/bin/mkdir" "-p" "${HOMEBREW_PREFIX}"
  if [[ -z "${HOMEBREW_ON_LINUX-}" ]]; then
    execute_sudo "$CHOWN" "root:wheel" "${HOMEBREW_PREFIX}"
  else
    execute_sudo "$CHOWN" "$USER:$GROUP" "${HOMEBREW_PREFIX}"
  fi
fi

if [[ "${#mkdirs[@]}" -gt 0 ]]; then
  execute_sudo "/bin/mkdir" "-p" "${mkdirs[@]}"
  execute_sudo "/bin/chmod" "g+rwx" "${mkdirs[@]}"
  execute_sudo "$CHOWN" "$USER" "${mkdirs[@]}"
  execute_sudo "$CHGRP" "$GROUP" "${mkdirs[@]}"
fi

if ! [[ -d "${HOMEBREW_CACHE}" ]]; then
  if [[ -z "${HOMEBREW_ON_LINUX-}" ]]; then
    execute_sudo "/bin/mkdir" "-p" "${HOMEBREW_CACHE}"
  else
    execute "/bin/mkdir" "-p" "${HOMEBREW_CACHE}"
  fi
fi
if exists_but_not_writable "${HOMEBREW_CACHE}"; then
  execute_sudo "/bin/chmod" "g+rwx" "${HOMEBREW_CACHE}"
fi
if file_not_owned "${HOMEBREW_CACHE}"; then
  execute_sudo "$CHOWN" "$USER" "${HOMEBREW_CACHE}"
fi
if file_not_grpowned "${HOMEBREW_CACHE}"; then
  execute_sudo "$CHGRP" "$GROUP" "${HOMEBREW_CACHE}"
fi
if [[ -d "${HOMEBREW_CACHE}" ]]; then
  execute "$TOUCH" "${HOMEBREW_CACHE}/.cleaned"
fi

if should_install_command_line_tools && version_ge "$macos_version" "10.13"; then
  ohai "Searching online for the Command Line Tools"
  # This temporary file prompts the 'softwareupdate' utility to list the Command Line Tools
  clt_placeholder="/tmp/.com.apple.dt.CommandLineTools.installondemand.in-progress"
  execute_sudo "$TOUCH" "$clt_placeholder"

  clt_label_command="/usr/sbin/softwareupdate -l |
                      grep -B 1 -E 'Command Line Tools' |
                      awk -F'*' '/^ *\\*/ {print \$2}' |
                      sed -e 's/^ *Label: //' -e 's/^ *//' |
                      sort -V |
                      tail -n1"
  clt_label="$(chomp "$(/bin/bash -c "$clt_label_command")")"

  if [[ -n "$clt_label" ]]; then
    ohai "Installing $clt_label"
    execute_sudo "/usr/sbin/softwareupdate" "-i" "$clt_label"
    execute_sudo "/bin/rm" "-f" "$clt_placeholder"
    execute_sudo "/usr/bin/xcode-select" "--switch" "/Library/Developer/CommandLineTools"
  fi
fi

# Headless install may have failed, so fallback to original 'xcode-select' method
if should_install_command_line_tools && test -t 0; then
  ohai "Installing the Command Line Tools (expect a GUI popup):"
  execute_sudo "/usr/bin/xcode-select" "--install"
  echo "Press any key when the installation has completed."
  getc
  execute_sudo "/usr/bin/xcode-select" "--switch" "/Library/Developer/CommandLineTools"
fi

if [[ -z "${HOMEBREW_ON_LINUX-}" ]] && ! output="$(/usr/bin/xcrun clang 2>&1)" && [[ "$output" == *"license"* ]]; then
  abort "$(
    cat <<EOABORT
You have not agreed to the Xcode license.
Before running the installer again please agree to the license by opening
Xcode.app or running:
    sudo xcodebuild -license
EOABORT
  )"
fi

ohai "Downloading and installing Homebrew..."
(
  cd "${HOMEBREW_REPOSITORY}" >/dev/null || return

  # we do it in four steps to avoid merge errors when reinstalling
  execute "git" "init" "-q"

  # "git remote add" will fail if the remote is defined in the global config
  execute "git" "config" "remote.origin.url" "${BREW_REPO}"
  execute "git" "config" "remote.origin.fetch" "+refs/heads/*:refs/remotes/origin/*"

  # ensure we don't munge line endings on checkout
  execute "git" "config" "core.autocrlf" "false"

  execute "git" "fetch" "origin" "--force"
  execute "git" "fetch" "origin" "--tags" "--force"

  execute "git" "reset" "--hard" "origin/master"

  execute "ln" "-sf" "${HOMEBREW_REPOSITORY}/bin/brew" "${HOMEBREW_PREFIX}/bin/brew"

  execute "${HOMEBREW_PREFIX}/bin/brew" "update" "--force"
)

if [[ ":${PATH}:" != *":${HOMEBREW_PREFIX}/bin:"* ]]; then
  warn "${HOMEBREW_PREFIX}/bin is not in your PATH."
fi

ohai "Installation successful!"
echo

# Use the shell's audible bell.
if [[ -t 1 ]]; then
  printf "\a"
fi

# Use an extra newline and bold to avoid this being missed.
ohai "Homebrew has enabled anonymous aggregate formulae and cask analytics."
echo "$(
  cat <<EOS
${tty_bold}Read the analytics documentation (and how to opt-out) here:
  ${tty_underline}https://docs.brew.sh/Analytics${tty_reset}
No analytics data has been sent yet (or will be during this \`install\` run).
EOS
)
"

ohai "Homebrew is run entirely by unpaid volunteers. Please consider donating:"
echo "$(
  cat <<EOS
  ${tty_underline}https://github.com/Homebrew/brew#donations${tty_reset}
EOS
)
"

(
  cd "${HOMEBREW_REPOSITORY}" >/dev/null || return
  execute "git" "config" "--replace-all" "homebrew.analyticsmessage" "true"
  execute "git" "config" "--replace-all" "homebrew.caskanalyticsmessage" "true"
)

ohai "Next steps:"
echo "- Run \`brew help\` to get started"
echo "- Further documentation: "
echo "    ${tty_underline}https://docs.brew.sh${tty_reset}"

if [[ -n "${HOMEBREW_ON_LINUX-}" ]]; then
  case "$SHELL" in
  */bash*)
    if [[ -r "$HOME/.bash_profile" ]]; then
      shell_profile="$HOME/.bash_profile"
    else
      shell_profile="$HOME/.profile"
    fi
    ;;
  */zsh*)
    shell_profile="$HOME/.zprofile"
    ;;
  *)
    shell_profile="$HOME/.profile"
    ;;
  esac

  cat <<EOS
- Install the Homebrew dependencies if you have sudo access:
  ${tty_bold}Debian, Ubuntu, etc.${tty_reset}
    sudo apt-get install build-essential
  ${tty_bold}Fedora, Red Hat, CentOS, etc.${tty_reset}
    sudo yum groupinstall 'Development Tools'
  See ${tty_underline}https://docs.brew.sh/linux${tty_reset} for more information.
- Configure Homebrew in your ${tty_underline}${shell_profile}${tty_reset} by running
    echo 'eval \$(${HOMEBREW_PREFIX}/bin/brew shellenv)' >> ${shell_profile}
- Add Homebrew to your ${tty_bold}PATH${tty_reset}
    eval \$(${HOMEBREW_PREFIX}/bin/brew shellenv)
- We recommend that you install GCC by running:
    brew install gcc

EOS
fi

方法二：

（1）打開網(wǎng)站: `https://www.ipaddress.com/`
查詢一下 `raw.githubusercontent.com`對應(yīng)的IP 地址
image.png
（2）替換系統(tǒng)的host文件
注意:最好復(fù)制一份出來在更改
image.png
image.png
image.png

  • 這里其實相當(dāng)于網(wǎng)絡(luò)不通的解決方式，一個網(wǎng)址在你電腦上是否能打開，打不開 我們都會在終端（dos系統(tǒng)）ping 一下 舉個例子：


    在這里插入圖片描述

    這是通的狀態(tài)，一般不通會顯示 timeout 等，你可以試試你的github是否通著。（一般電信公司排查網(wǎng)絡(luò)問題，也是這樣，看看是否丟包）

2.當(dāng)沒有權(quán)限修改hosts文件的時候，可以這樣操作：
找到etc文件夾，然后右鍵，打開顯示簡介。找到最下面的共享與權(quán)限，點擊打開，如圖所示。


image.png

現(xiàn)在先打開右下角的小鎖，然后修改everybody的權(quán)限為“讀與寫”即可，現(xiàn)在就可以繼續(xù)之前的修改文檔了，修改好之后保存。

image.png

新增hosts的文件：(用于github的連接)

151.101.184.133 avatars0.githubusercontent.com
151.101.184.133 avatars1.githubusercontent.com
151.101.184.133 avatars2.githubusercontent.com
151.101.184.133 avatars3.githubusercontent.com
151.101.184.133 avatars4.githubusercontent.com
151.101.184.133 avatars5.githubusercontent.com
151.101.184.133 avatars6.githubusercontent.com
151.101.184.133 avatars7.githubusercontent.com
151.101.184.133 avatars8.githubusercontent.com

修改完hosts還不會立即生效，你需要刷新DNS緩存，告訴電腦我的hosts文件已經(jīng)修改了。

sudo killall -HUP mDNSResponder

大千世界，求同存異；相遇是緣，相識是份，相知便是“猿糞”(緣分)
From MZou

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