Hi,
Since Yom Kippur War on 1973 the Israeli Syrian border has been the most quiet among Israeli borders, both by number of activities and number of causalities. It stretches from Mount Hermon on the North, pass on Golan Heights and ends in the triangle of borders on the Ruqqad stream.
Assad, and later Assad the son, had a firm and strong hold on Syria and on the area and it was on their interests to keep it quiet. Israel has the same interests of course what kept the borderline quiet.
But since the rebellion against Assad the son and the civil war that came after it, it became hotter.
Mostly mortar shells, or gunshot from the other side of the border.
There was no one to blame directly as the control map on the other side changed daily if not hourly. But for Israel, it was Assad responsibility. Israel also unofficially helped the rebellion (by medical and weapon), but they sometimes attack only to see IAF aircraft attack Syrian military forces.
Nowadays it is even more dangerous border line, if not the most dangerous one after it is again fully under Syria control.
Anti tanks missiles, penetration attempts, booby traps on the fence, sniper ambushes, unmanned aircraft penetration and more. You might say it became as the Gaza strip border, in the bad way.
It is Iran responsibility. Either directly or by it proxies, Hezbollah for example, who use instead of lightning up Lebanon border for example.
Israel is bombing Iran facilities and forces on weekly base to prevent Iran setting advanced weapons. Those are the attacks you usually hear about in the news.
Take care
Gad
Mount Hermon, The northern point of the border, the UNDOF Zone stretch up to the Hermon summit
The view from Majdel Shams over the border
The Druze Village of Majdel Shams, which the Six Days War cut it connection to close Hader village in Syria, is stretch up until the border
Mount Peres carter, one of the volcanoes along the Israeli Syrian border
The Israeli Syrian border from Tel Peres
The Syrian Tel Kudna, part of the Volcanoes in Syrian Golan Heights, and Strategic point