If you try my line, be sure to create the folder ~/kerberos before, so maybe a better alternative would be the line
KRB5CCNAME=${HOME}/.config/krb5cc_${LOGNAME}
If you try my line, be sure to create the folder ~/kerberos before, so maybe a better alternative would be the line
KRB5CCNAME= ${HOME} /.config/ krb5cc_ ${LOGNAME}