diff --git a/.gitignore b/.gitignore
index 669685b..b472a6a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@ share/static/fonts/
 data/
 log/
 .idea/
+*.swp
diff --git a/README.md b/README.md
index d70e171..b17d653 100644
--- a/README.md
+++ b/README.md
@@ -234,8 +234,8 @@ To install the application:
 
 1. Install external dependencies
 2. Install Python dependencies used by the service
-3. Get a WorldWeatherOnline API Key
-4. Configure wego
+3. Configure IP2Location (optional)
+4. Get a WorldWeatherOnline API and configure wego
 5. Configure wttr.in
 6. Configure the HTTP-frontend service
 
@@ -278,14 +278,24 @@ If `virtualenv` is used:
 Also, you need to install the geoip2 database.
 You can use a free database GeoLite2 that can be downloaded from (http://dev.maxmind.com/geoip/geoip2/geolite2/).
 
-### Get a WorldWeatherOnline key
+### Configure IP2Location (optional)
+
+If you want to use the IP2location service for IP-addresses that are not covered by GeoLite2,
+you have to obtain a API key of that service, and after that save into the `~/.ip2location.key` file:
+
+```
+$ echo 'YOUR_IP2LOCATION_KEY' > ~/.ip2location.key
+```
+
+If you don't have this file, the service will be silently skipped (it is not a big problem,
+because the MaxMind database is pretty good).
+
+### Get a WorldWeatherOnline key and configure wego
 
 To get a WorldWeatherOnline API key, you must register here:
  
     https://developer.worldweatheronline.com/auth/register
 
-### Configure wego
-
 After you have a WorldWeatherOnline key, you can configure `wego`:
 
     $ cat ~/.wegorc 
diff --git a/lib/globals.py b/lib/globals.py
index ecc0e41..83ee3a5 100644
--- a/lib/globals.py
+++ b/lib/globals.py
@@ -67,6 +67,7 @@ PLAIN_TEXT_AGENTS = [
 PLAIN_TEXT_PAGES = [':help', ':bash.function', ':translation']
 
 _IP2LOCATION_KEY_FILE = os.environ['HOME'] + '/.ip2location.key'
+IP2LOCATION_KEY = None
 if os.path.exists(_IP2LOCATION_KEY_FILE):
     IP2LOCATION_KEY = open(_IP2LOCATION_KEY_FILE, 'r').read().strip()
 
diff --git a/lib/location.py b/lib/location.py
index a90aa43..80b8c82 100644
--- a/lib/location.py
+++ b/lib/location.py
@@ -95,15 +95,18 @@ def ip2location(ip_addr):
     if os.path.exists(cached):
         location = open(cached, 'r').read()
     else:
-        try:
-            ip2location_response = requests\
-                    .get('http://api.ip2location.com/?ip=%s&key=%s&package=WS3' \
-                            % (ip_addr, IP2LOCATION_KEY)).text
-            if ';' in ip2location_response:
-                open(cached, 'w').write(ip2location_response)
-            location = ip2location_response
-        except requests.exceptions.ConnectionError:
-            pass
+        # if IP2LOCATION_KEY is not set, do not the query,
+        # because the query wont be processed anyway
+        if IP2LOCATION_KEY:
+            try:
+                ip2location_response = requests\
+                        .get('http://api.ip2location.com/?ip=%s&key=%s&package=WS3' \
+                                % (ip_addr, IP2LOCATION_KEY)).text
+                if ';' in ip2location_response:
+                    open(cached, 'w').write(ip2location_response)
+                location = ip2location_response
+            except requests.exceptions.ConnectionError:
+                pass
 
     if ';' in location:
         location = location.split(';')[3], location.split(';')[1]
diff --git a/share/aliases b/share/aliases
index acd2cb6..f370c52 100644
--- a/share/aliases
+++ b/share/aliases
@@ -46,3 +46,4 @@ Chicago     : Chicago,IL
 Paris       : Paris,France
 Giessen     : Giessen, Germany
 Braga       : Braga, Portugal
+Kashan      : ~Kashan,Iran
diff --git a/share/scripts/clean-cache.sh b/share/scripts/clean-cache.sh
index d04db7b..3ed9937 100755
--- a/share/scripts/clean-cache.sh
+++ b/share/scripts/clean-cache.sh
@@ -8,3 +8,8 @@ do
   mkdir "${CACHEDIR}/${dir}"
   rm -rf "${CACHEDIR}/${dir}.old"
 done
+
+cd /wttr.in/log
+mv main.log main.log.1
+touch main.log
+