---
title: Judgehost
tags: article, domjudge
---

# Judgehost Installation

### Install Compliers (for judgement)

sudo apt-get install debootstrap libcgroup-dev lsof procps gcc g++ \
     openjdk-8-jre-headless openjdk-8-jdk ghc fp-compiler libjsoncpp-dev

sudo apt-get install libcurl3 -y
sudo apt-get install libcurl4 libcurl4-openssl-dev -y

### Install Judgehost
於 **domjudge** 目錄下進行安裝
(請替換路徑成實際安裝路徑)

cd ~/domjudge
./configure --prefix=$HOME/domjudge
make judgehost
sudo make install-judgehost

### Sudo permissions

cd judgehost/etc
sudo useradd -d /nonexistent -U -M -s /bin/false domjudge-run
sudo cp sudoers-domjudge /etc/sudoers.d

### Chroot Environment
(於 **judgehost** 目錄下執行)

cd ~/domjudge/judgehost
sudo bin/dj_make_chroot

### Linux Control Groups
(於 **judgehost** 目錄下執行)

cd ~/domjudge/judgehost
sudo vim /etc/default/grub

> 替換 `GRUB_CMDLINE_LINUX_DEFAULT`的值為`"quiet cgroup_enable=memory swapaccount=1"`

sudo update-grub
reboot

- 啟用cgroups

sudo ./bin/create_cgroups

- 啟用judgedaemon (should not be run as root)

./bin/judgedaemon

> **Problem :** Call to undefined function curl_init()
> **Solution :**
> $ sudo apt-get
> $ sudo vim /etc/php/7.2/apache2/php.ini
> delete `;` of `;extension=intl` in `php.ini` (at ln. 895)
> $ sudo systemctl restart apache2

---

如果成功的話，應該會跳出這個畫面：

可以用以下的步驟登入測試用參賽者帳號(dummy)並上傳測試：
### Resetting password
(於 **domjudge** 目錄下執行)

webapp/bin/console domjudge:reset-user-password dummy

首次安裝後，可以使用這些使用者帳號 (替換掉dummy)：
> （管理者） admin
> （評測者） judgehost
> （測試參賽者） dummy