Where can I find ranger-skill-quest in old ascalon?

thx in advance

Are you in Pre-Searing?

If so, then there is Ranger Nente she is located East of Baradin Estates (West of the guy named Pitney) - follow the path from Pitney north west through the portal. There are 3 people who give quests. One is Nente I think.

Ivo Longshot (or something like that) is near Fort Ranik (East of Ascolon City). Aiden is south of Ascolon (really south).

If you are in post-war, let us know then we can give you their locations.

No, I'm in ascalon city after the searing

Okay.

Ranger Nente is near Guard Gate Holis - West of Ascolon City. She tells you to cap a Melandru's Stalker. Complete this mission (if you already have a Melandru's Stalker) then you must follow her to face the Char.

Longshot is in Picken Square (go through the portal by Guard Gate Hollis) then go down the path (stairs, not bridge) then follow the Picken guard to Picken Square.

Aiden helps you in 1 quest (or rather you are to help him), in Picken Square.

Hope this helps.

Here is the best help i can give you: http://gw.gamewikis.org/wiki/Skill_Quests

Missed it in my googling, thx alot!