Topic: To restrict SSH access
Colleagues, help, not so long ago began to be on friendly terms with Linux, and here such situation strains. When try , sort out passwords... Here it is visible, 1217 attempts from August, 2nd till August, 10th... Happens and more.
On IP to filter - I do not know... Since sometimes from the smart phone I "am cut", and there IP strongly "dance". From the cable operator certainly it is easier to import a subnet mask. But with cellular then it will not be connected, since I can not guess with a range.
Read, change port, whether tell there is in it a sense?
Whether it is possible to make a time delay for ~1 minute and more between unfortunate login from one IP?