diff --git a/README.md b/README.md
index 0254f1f..efb433f 100644
--- a/README.md
+++ b/README.md
@@ -61,7 +61,7 @@ You can see the addresses and hostnames of components with `make hosts` command.
 ```
 $ make hosts
 192.168.130.10 bastion.neofs.devenv
-192.168.130.50 main_chain.neofs.devenv
+192.168.130.50 main-chain.neofs.devenv
 192.168.130.61 ir01.neofs.devenv
 ...
 192.168.130.74 s04.neofs.devenv
diff --git a/bin/config.sh b/bin/config.sh
index 1432762..d4fd1fa 100755
--- a/bin/config.sh
+++ b/bin/config.sh
@@ -36,7 +36,7 @@ echo "Changing ${KEY} configration value to ${VALUE}"
 ./bin/passwd.exp ${PASSWD} ${NEOGO} contract invokefunction \
 -w ${WALLET_IMG} \
 -a ${ADDR} \
--r http://morph_chain.${LOCAL_DOMAIN}:30333 \
+-r http://morph-chain.${LOCAL_DOMAIN}:30333 \
 ${NETMAP_ADDR} \
 setConfig bytes:beefcafe \
 string:${KEY} \
diff --git a/bin/deposit.sh b/bin/deposit.sh
index 6340fe4..6032354 100755
--- a/bin/deposit.sh
+++ b/bin/deposit.sh
@@ -20,7 +20,7 @@ CONTRACT_ADDR=`${NEOGO} util convert ${NEOFS_IR_CONTRACTS_NEOFS} | grep 'LE Scri
 # Make deposit
 ./bin/passwd.exp ${PASSWD} ${NEOGO} wallet nep17 transfer \
 -w ${WALLET} \
--r http://main_chain.${LOCAL_DOMAIN}:30333 \
+-r http://main-chain.${LOCAL_DOMAIN}:30333 \
 --from ${ADDR} \
 --to ${CONTRACT_ADDR} \
 --token GAS \
diff --git a/bin/resolve.sh b/bin/resolve.sh
index 8565a93..04b8e52 100755
--- a/bin/resolve.sh
+++ b/bin/resolve.sh
@@ -6,8 +6,8 @@
 # NeoGo binary path.
 NEOGO="${NEOGO:-docker exec -it morph_chain neo-go}"
 # NNS contract script hash
-NNS_ADDR=`curl -s --data '{ "id": 1, "jsonrpc": "2.0", "method": "getcontractstate", "params": [1] }' http://morph_chain.${LOCAL_DOMAIN}:30333/ | jq -r '.result.hash'`
+NNS_ADDR=`curl -s --data '{ "id": 1, "jsonrpc": "2.0", "method": "getcontractstate", "params": [1] }' http://morph-chain.${LOCAL_DOMAIN}:30333/ | jq -r '.result.hash'`
 
 ${NEOGO} contract testinvokefunction \
--r http://morph_chain.${LOCAL_DOMAIN}:30333 \
+-r http://morph-chain.${LOCAL_DOMAIN}:30333 \
 ${NNS_ADDR} resolve string:${1} int:16 | jq -r '.stack[0].value | if type=="array" then .[0].value else . end' | base64 -d
diff --git a/bin/tick.sh b/bin/tick.sh
index 5853d1d..5fb7b4a 100755
--- a/bin/tick.sh
+++ b/bin/tick.sh
@@ -28,7 +28,7 @@ NETMAP_ADDR=`bin/resolve.sh netmap.neofs`
 
 # Fetch current epoch value
 EPOCH=`${NEOGO} contract testinvokefunction -r \
-http://morph_chain.${LOCAL_DOMAIN}:30333 \
+http://morph-chain.${LOCAL_DOMAIN}:30333 \
 ${NETMAP_ADDR} \
 epoch | grep 'value' | awk -F'"' '{ print $4 }'`
 
@@ -36,7 +36,7 @@ echo "Updating NeoFS epoch to $((EPOCH+1))"
 ./bin/passwd.exp ${PASSWD} ${NEOGO} contract invokefunction \
 -w ${WALLET_IMG} \
 -a ${ADDR} \
--r http://morph_chain.${LOCAL_DOMAIN}:30333 \
+-r http://morph-chain.${LOCAL_DOMAIN}:30333 \
 ${NETMAP_ADDR} \
 newEpoch int:$((EPOCH+1)) -- ${ADDR}:Global
 
diff --git a/docs/chain.md b/docs/chain.md
index 8dfbb5e..0ed13ce 100644
--- a/docs/chain.md
+++ b/docs/chain.md
@@ -7,7 +7,7 @@ Contracts deployed:
 - NeoFS [contract](https://github.com/nspcc-dev/neofs-contract/tree/master/neofs)
 - Processing [contract](https://github.com/nspcc-dev/neofs-contract/tree/master/processing)
 
-RPC available at `http://main_chain.neofs.devenv:30333`.
+RPC available at `http://main-chain.neofs.devenv:30333`.
 
 ## .env settings
 
@@ -31,7 +31,7 @@ There is a wallet with GAS that used for contract deployment:
 ```
 $ neo-go wallet nep17 balance \
     -w wallets/wallet.json \
-    -r http://main_chain.neofs.devenv:30333 
+    -r http://main-chain.neofs.devenv:30333 
    
 Account NbUgTSFvPmsRxmGeWpuuGeJUoRoi6PErcM
 GAS: GasToken (d2a4cff31913016155e38e474a2c06d08be276cf)
@@ -65,7 +65,7 @@ wallet successfully created, file location is wallets/neofs1.json
 ```
 $ neo-go wallet nep17 transfer \
     -w wallets/wallet.json \
-    -r http://main_chain.neofs.devenv:30333 \
+    -r http://main-chain.neofs.devenv:30333 \
     --from NbUgTSFvPmsRxmGeWpuuGeJUoRoi6PErcM \
     --to NXnzw3J9VvKXjM1BPAJK4QUpTtEQu4TpU6 \
     --amount 50 \
@@ -77,7 +77,7 @@ $ neo-go wallet nep17 transfer \
 ```
 $ neo-go wallet nep17 balance \
     -w wallets/neofs1.json \
-    -r http://main_chain.neofs.devenv:30333 
+    -r http://main-chain.neofs.devenv:30333
 
 Account NXnzw3J9VvKXjM1BPAJK4QUpTtEQu4TpU6 
 GAS: GasToken (d2a4cff31913016155e38e474a2c06d08be276cf)
@@ -98,7 +98,7 @@ Claim GAS to consensus node's wallet. Use account that contains NEO tokens.
 ```
 $ neo-go wallet claim \
     -w services/chain/node-wallet.json \
-    -r http://main_chain.neofs.devenv:30333 \
+    -r http://main-chain.neofs.devenv:30333 \
     -a NfgHwwTi3wHAS8aFAN243C5vGbkYDpqLHP \
 Password >
 70e09bbd55846dcc7cee23905b737c63e5a80d32e387bce108bc6db8e641fb90
@@ -109,7 +109,7 @@ Then you can transfer GAS the same way as it was done in previous section.
 ```
 $ neo-go wallet nep17 transfer \
     -w services/chain/node-wallet.json \
-    -r http://main_chain.neofs.devenv:30333 \
+    -r http://main-chain.neofs.devenv:30333 \
     --from NfgHwwTi3wHAS8aFAN243C5vGbkYDpqLHP \
     --to NXnzw3J9VvKXjM1BPAJK4QUpTtEQu4TpU6 \
     --amount 50 \
@@ -136,7 +136,7 @@ Script converts addresses and executes this command:
 ```
 $ neo-go wallet nep17 transfer \
     -w wallets/wallet.json \
-    -r http://main_chain.neofs.devenv:30333 \
+    -r http://main-chain.neofs.devenv:30333 \
     --from NbUgTSFvPmsRxmGeWpuuGeJUoRoi6PErcM \
     --to NerhjaqJsJt4LxMqUbkkVMpsF2d9TtcpFv \
     --token GAS \
@@ -149,7 +149,7 @@ and NeoFS deposit will be transferred to that address.
 ```
 $ neo-go wallet nep17 transfer \
     -w wallets/wallet.json \
-    -r http://main_chain.neofs.devenv:30333 \
+    -r http://main-chain.neofs.devenv:30333 \
     --from NbUgTSFvPmsRxmGeWpuuGeJUoRoi6PErcM \
     --to NerhjaqJsJt4LxMqUbkkVMpsF2d9TtcpFv \
     --token GAS \
diff --git a/docs/morph.md b/docs/morph.md
index 21a359c..a30bfb5 100644
--- a/docs/morph.md
+++ b/docs/morph.md
@@ -12,7 +12,7 @@ Contracts deployed:
 - Proxy [contract](https://github.com/nspcc-dev/neofs-contract/tree/master/proxy)
 - Reputation [contract](https://github.com/nspcc-dev/neofs-contract/tree/master/reputation)
  
-RPC available at `http://morph_chain.neofs.devenv:30333`.
+RPC available at `http://morph-chain.neofs.devenv:30333`.
 
 ## .env settings
 
@@ -36,8 +36,8 @@ There is a wallet with GAS that used for contract deployment:
 ```
 $ neo-go wallet nep17 balance \
     -w wallets/wallet.json \
-    -r http://morph_chain.neofs.devenv:30333 
-   
+    -r http://morph-chain.neofs.devenv:30333
+
 Account NbUgTSFvPmsRxmGeWpuuGeJUoRoi6PErcM
 GAS: GasToken (d2a4cff31913016155e38e474a2c06d08be276cf)
         Amount : 189826.0515316
diff --git a/services/chain/.hosts b/services/chain/.hosts
index 1668720..a576e59 100644
--- a/services/chain/.hosts
+++ b/services/chain/.hosts
@@ -1 +1 @@
-IPV4_PREFIX.50 main_chain.LOCAL_DOMAIN
+IPV4_PREFIX.50 main-chain.LOCAL_DOMAIN
diff --git a/services/chain/docker-compose.yml b/services/chain/docker-compose.yml
index ce25de9..f460206 100644
--- a/services/chain/docker-compose.yml
+++ b/services/chain/docker-compose.yml
@@ -7,7 +7,7 @@ services:
     container_name: main_chain
     command: ["node", "--config-path", "/config", "--privnet", "--debug"]
     domainname: ${LOCAL_DOMAIN}
-    hostname: main_chain
+    hostname: main-chain
     networks:
       chain_int:
       internet:
diff --git a/services/ir/.ir.env b/services/ir/.ir.env
index 0954123..4bd9959 100644
--- a/services/ir/.ir.env
+++ b/services/ir/.ir.env
@@ -19,10 +19,10 @@ NEOFS_IR_METRICS_ADDRESS=:9090
 # Toggling the sidechain-only mode
 NEOFS_IR_WITHOUT_MAINNET=false
 
-NEOFS_IR_MAINNET_ENDPOINT_CLIENT=http://main_chain:30333
-NEOFS_IR_MAINNET_ENDPOINT_NOTIFICATION=ws://main_chain:30333/ws
-NEOFS_IR_MORPH_ENDPOINT_CLIENT=http://morph_chain:30333
-NEOFS_IR_MORPH_ENDPOINT_NOTIFICATION=ws://morph_chain:30333/ws
+NEOFS_IR_MAINNET_ENDPOINT_CLIENT=http://main-chain:30333
+NEOFS_IR_MAINNET_ENDPOINT_NOTIFICATION=ws://main-chain:30333/ws
+NEOFS_IR_MORPH_ENDPOINT_CLIENT=http://morph-chain:30333
+NEOFS_IR_MORPH_ENDPOINT_NOTIFICATION=ws://morph-chain:30333/ws
 NEOFS_IR_TIMERS_EMIT=50
 NEOFS_IR_TIMERS_STOP_ESTIMATION_DIV=4
 NEOFS_IR_TIMERS_COLLECT_BASIC_INCOME_DIV=2
diff --git a/services/morph_chain/.hosts b/services/morph_chain/.hosts
index 8af39d3..b2ffc31 100644
--- a/services/morph_chain/.hosts
+++ b/services/morph_chain/.hosts
@@ -1 +1 @@
-IPV4_PREFIX.90 morph_chain.LOCAL_DOMAIN
+IPV4_PREFIX.90 morph-chain.LOCAL_DOMAIN
diff --git a/services/morph_chain/docker-compose.yml b/services/morph_chain/docker-compose.yml
index 9da285f..a622402 100644
--- a/services/morph_chain/docker-compose.yml
+++ b/services/morph_chain/docker-compose.yml
@@ -7,7 +7,7 @@ services:
     container_name: morph_chain
     command: ["node", "--config-path", "/config", "--privnet", "--debug"]
     domainname: ${LOCAL_DOMAIN}
-    hostname: morph_chain
+    hostname: morph-chain
     networks:
       chain_int:
       internet:
diff --git a/services/storage/.storage.env b/services/storage/.storage.env
index e201e8e..292d79c 100644
--- a/services/storage/.storage.env
+++ b/services/storage/.storage.env
@@ -25,10 +25,10 @@ NEOFS_GRPC_NUM=1
 # Morph section
 ## Endpoints of sidechain RPC nodes (comma-separated)
 ## Default: empty list (invalid)
-NEOFS_MORPH_RPC_ENDPOINT=http://morph_chain:30333
+NEOFS_MORPH_RPC_ENDPOINT=http://morph-chain:30333
 ## Endpoints of sidechain notifications (comma-separated)
 ## Default: empty list (invalid)
-NEOFS_MORPH_NOTIFICATION_ENDPOINT=ws://morph_chain:30333/ws
+NEOFS_MORPH_NOTIFICATION_ENDPOINT=ws://morph-chain:30333/ws
 ## Dial timeout to connect to notification endpoint
 ## Default: 5s
 #NEOFS_MORPH_DIAL_TIMEOUT=1m