It is worst! You need rights for RAW socket. Similar situation is on Windows too, but Windows publish special API for sending ping by non-admin users. Synapse can use it. But on Linux I not know any special API.
Synapse documentation says: Warning: For use of RAW sockets you must have some special rights on some systems. So, it working allways when you have administator/root rights. Otherwise you can have problems! > That's because on Linux you must be root to send ping packets for > users not to flood hosts with ping packets. It is a security thing. > You can not bind to a port below 1024 as a normal user. > > -------- Original message -------- > From: Piotr Polok <piotr.po...@polok.pl> > Date: 11/08/2015 23:22 (GMT+02:00) > To: Ararat Synapse <synalist-public@lists.sourceforge.net> > Subject: [Synalist] Synapse in Lazarus on Linux with user privileges > not working. > > Hi, > > when I start Lazarus IDE from root account the PingSend.PingHost(host) > works properly, but when I start Lazarus IDE from user account the > PingSend.PingHost(host) gives all the time '-1' result. > > Lazarus version: 1.4.2 > FPC, FPC-SRC version: 2.6.4 > Synapse version: 40 > OS: Debina 8.1 on Oracle VM > > please help in solving this problem. > Piort Polok > > ---------------------------------------------------------------------- > -------- _______________________________________________ > synalist-public mailing list synalist-public@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/synalist-public -- Lukas Gebauer. http://synapse.ararat.cz/ - Ararat Synapse - TCP/IP Lib. http://geoget.ararat.cz/ - Geocaching solution ------------------------------------------------------------------------------ _______________________________________________ synalist-public mailing list synalist-public@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/synalist-public
