rdistd: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/bin/rdistd - from package: rdist
/usr/sbin/rdistd - from package: rdist

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/rdistd - from package: rdist

You may install the required package with command apt-get install {package}

Error in other languages:
rdistd: bevel nie gevind nie
rdistd: comandă negăsită
rdistd: comando não encontrado
rdistd: commande introuvable
rdistd: command not found
rdistd: käsku ei ole
rdistd: không tìm thấy lệnh
rdistd: komanda nerasta
rdistd: Kommando nicht gefunden.
rdistd: kommandot finns inte
rdistd: komut yok
rdistd: nie znaleziono polecenia
rdistd: níor aimsíodh an t-ordú
rdistd: no se encontró la orden
rdistd: no s'ha trobat l'ordre
rdistd: opdracht niet gevonden
rdistd: parancs nem található
rdistd: perintah tidak ditemukan
rdistd: príkaz nenájdený
rdistd: příkaz nenalezen
rdistd: команда не найдена
rdistd: командата не е открита
rdistd: 命令找不到
rdistd: コマンドが見つかりません