kermrc: 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 Debian possible default full paths are:

/usr/bin/kermrc - from package: ckermit

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

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