FBS has got 4 different server names for trading accounts, which are:

FBS-Real-Micro-Cent Server name for Micro and Cent account
FBS-Demo Server name for FBS demo account
FBS-Real-2 & FBS-Real Server name for accounts other than the above

FBS server

Not server name but IP address

FBS actually provides server IP address as login credentials like below.

So you can just copy the IP address when you login to your MT4 account.

FBS Password

Although you can not Copy&Paste for MT4 webtrader, you may need to select one of them and find out.

FBS (fbs.com)

1

XMXM

4.8 rating based on 1,221 ratings
4.8/5 1221
2

DerivDeriv

4.3 rating based on 178 ratings
4.3/5 178
3

IronFXIronFX

4.8 rating based on 241 ratings
4.8/5 241
4

EXNESSEXNESS

3.9 rating based on 199 ratings
3.9/5 199
5

FBSFBS

2.5 rating based on 175 ratings
2.5/5 175
1

bybitbybit

4.2 rating based on 3,330 ratings
4.2/5 3330
2

BinanceBinance

4.3 rating based on 7,672 ratings
4.3/5 7672
3

BitgetBitget

4.3 rating based on 42 ratings
4.3/5 42
4

PrimeBitPrimeBit

3.9 rating based on 7,148 ratings
3.9/5 7148
5

BitMEXBitMEX

3.8 rating based on 6,919 ratings
3.8/5 6919