Some mystics say that the desert of Dudael where Azazel was imprisoned and the Dajjal is hidden is in Iraq, others say it is in Syria and others say it is in Nabta Playa in Nubia. In fact this name was mentioned in the Ethiopian apocryphal of Enoch and writers found ancient stone circles in the region, such as in the British STONEHENG. Amazed by the size of the stones, they said that they were actually the rebellious angels who were trapped there and turned into stone.
But in Kabbalist Jewish literature, the desert of Dudael became a mystical place in northern Iraq and could be the mountain of the Yazidis, a sacred place for this religion that worships Malach Taus, the incarnation of Azazel. The holy place of the Yazidis is Mount Sinjar where thousands of Yazidi Kurds were surrounded and killed when the Islamic state took over Iraq and Syria creating the Caliphate.
So Dajjal is hidden in Mount Sinjar? It is clear that Dudael's desert is the symbolism of a parallel world where demons were imprisoned. It is a threshold, a portal between earth and the worlds of chaos.
Mount Sinjar symbolizes the Yazidis' system of sacred caves with underground water sources that stretched across the east. And this is also part of Dudael's mystical system, portals connecting the earth to the Threshold and in one of these portals the Dajjal is hidden, waiting for the time to rule the world.
Dudael, a mystical meaning and not a physical place. Whether this name was created by Ethiopian mystics I don't know, but over time what is created becomes real, a form of thought, like the name Lucifer which is not the name of the fallen angel, but became so because of the popular imagination creating an Egregora.
In fact, the name Dudael has two do's, from Djinns, the geniuses of Arabic legends who are guardians of dimensional portals in the desert.
It is certainly the Djjins who guard the place where Dajjal is hidden, being himself the king of the Djjins.