diff --git a/src/acl/Ip.cc b/src/acl/Ip.cc
index 4aa2c90..99b0bf9 100644
--- a/src/acl/Ip.cc
+++ b/src/acl/Ip.cc
@@ -221,7 +221,7 @@ acl_ip_data::FactoryParse(const char *t)
     debugs(28, 5, "aclIpParseIpData: " << t);
 
     /* Special ACL RHS "all" matches entire Internet */
-    if (strcmp(t, "all") == 0) {
+    if (strcasecmp(t, "all") == 0) {
         debugs(28, 9, "aclIpParseIpData: magic 'all' found.");
         q->addr1.setAnyAddr();
         q->addr2.setEmpty();
@@ -231,8 +231,8 @@ acl_ip_data::FactoryParse(const char *t)
 
     /* Detect some old broken strings equivalent to 'all'.
      * treat them nicely. But be loud until its fixed.  */
-    if (strcmp(t, "0/0") == 0 || strcmp(t, "0.0.0.0/0") == 0 || strcmp(t, "0.0.0.0/0.0.0.0") == 0 ||
-            strcmp(t, "0.0.0.0-255.255.255.255") == 0 || strcmp(t, "0.0.0.0-0.0.0.0/0") == 0) {
+    if (strcasecmp(t, "0/0") == 0 || strcasecmp(t, "0.0.0.0/0") == 0 || strcasecmp(t, "0.0.0.0/0.0.0.0") == 0 ||
+            strcasecmp(t, "0.0.0.0-255.255.255.255") == 0 || strcasecmp(t, "0.0.0.0-0.0.0.0/0") == 0) {
 
         debugs(28,DBG_CRITICAL, "ERROR: '" << t << "' needs to be replaced by the term 'all'.");
         debugs(28,DBG_CRITICAL, "SECURITY NOTICE: Overriding config setting. Using 'all' instead.");
@@ -245,14 +245,14 @@ acl_ip_data::FactoryParse(const char *t)
     /* Special ACL RHS "ipv4" matches IPv4 Internet
      * A nod to IANA; we include the entire class space in case
      * they manage to find a way to recover and use it */
-    if (strcmp(t, "ipv4") == 0) {
+    if (strcasecmp(t, "ipv4") == 0) {
         q->mask.setNoAddr();
         q->mask.applyMask(0, AF_INET);
         return q;
     }
 
     /* Special ACL RHS "ipv6" matches IPv6-Unicast Internet */
-    if (strcmp(t, "ipv6") == 0) {
+    if (strcasecmp(t, "ipv6") == 0) {
         debugs(28, 9, "aclIpParseIpData: magic 'ipv6' found.");
         r = q; // save head of the list for result.
 
diff --git a/src/adaptation/ServiceConfig.cc b/src/adaptation/ServiceConfig.cc
index cbae4d4..127b591 100644
--- a/src/adaptation/ServiceConfig.cc
+++ b/src/adaptation/ServiceConfig.cc
@@ -55,10 +55,10 @@ Adaptation::ServiceConfig::parseVectPoint(const char *service_configConfig) cons
     if (q)
         t = q + 1;
 
-    if (!strcmp(t, "precache"))
+    if (!strcasecmp(t, "precache"))
         return Adaptation::pointPreCache;
 
-    if (!strcmp(t, "postcache"))
+    if (!strcasecmp(t, "postcache"))
         return Adaptation::pointPostCache;
 
     return Adaptation::pointNone;
diff --git a/src/auth/Config.cc b/src/auth/Config.cc
index d8129c7..a02ccac 100644
--- a/src/auth/Config.cc
+++ b/src/auth/Config.cc
@@ -73,7 +73,7 @@ Auth::Config::registerWithCacheManager(void)
 void
 Auth::Config::parse(Auth::Config * scheme, int n_configured, char *param_str)
 {
-    if (strcmp(param_str, "program") == 0) {
+    if (strcasecmp(param_str, "program") == 0) {
         if (authenticateProgram)
             wordlistDestroy(&authenticateProgram);
 
@@ -81,7 +81,7 @@ Auth::Config::parse(Auth::Config * scheme, int n_configured, char *param_str)
 
         requirePathnameExists("Authentication helper program", authenticateProgram->key);
 
-    } else if (strcmp(param_str, "realm") == 0) {
+    } else if (strcasecmp(param_str, "realm") == 0) {
         realm.clear();
 
         char *token = ConfigParser::NextQuotedOrToEol();
@@ -97,10 +97,10 @@ Auth::Config::parse(Auth::Config * scheme, int n_configured, char *param_str)
 
         realm = token;
 
-    } else if (strcmp(param_str, "children") == 0) {
+    } else if (strcasecmp(param_str, "children") == 0) {
         authenticateChildren.parseConfig();
 
-    } else if (strcmp(param_str, "key_extras") == 0) {
+    } else if (strcasecmp(param_str, "key_extras") == 0) {
         keyExtrasLine = ConfigParser::NextQuotedToken();
         Format::Format *nlf =  new ::Format::Format(scheme->type());
         if (!nlf->parse(keyExtrasLine.termedBuf())) {
diff --git a/src/auth/basic/Config.cc b/src/auth/basic/Config.cc
index ae84bed..fb800d3 100644
--- a/src/auth/basic/Config.cc
+++ b/src/auth/basic/Config.cc
@@ -133,11 +133,11 @@ Auth::Basic::Config::Config() :
 void
 Auth::Basic::Config::parse(Auth::Config * scheme, int n_configured, char *param_str)
 {
-    if (strcmp(param_str, "credentialsttl") == 0) {
+    if (strcasecmp(param_str, "credentialsttl") == 0) {
         parse_time_t(&credentialsTTL);
-    } else if (strcmp(param_str, "casesensitive") == 0) {
+    } else if (strcasecmp(param_str, "casesensitive") == 0) {
         parse_onoff(&casesensitive);
-    } else if (strcmp(param_str, "utf8") == 0) {
+    } else if (strcasecmp(param_str, "utf8") == 0) {
         parse_onoff(&utf8);
     } else
         Auth::Config::parse(scheme, n_configured, param_str);
diff --git a/src/auth/digest/Config.cc b/src/auth/digest/Config.cc
index 2d24969..a91225b 100644
--- a/src/auth/digest/Config.cc
+++ b/src/auth/digest/Config.cc
@@ -602,26 +602,26 @@ Auth::Digest::Config::Config() :
 void
 Auth::Digest::Config::parse(Auth::Config * scheme, int n_configured, char *param_str)
 {
-    if (strcmp(param_str, "program") == 0) {
+    if (strcasecmp(param_str, "program") == 0) {
         if (authenticateProgram)
             wordlistDestroy(&authenticateProgram);
 
         parse_wordlist(&authenticateProgram);
 
         requirePathnameExists("auth_param digest program", authenticateProgram->key);
-    } else if (strcmp(param_str, "nonce_garbage_interval") == 0) {
+    } else if (strcasecmp(param_str, "nonce_garbage_interval") == 0) {
         parse_time_t(&nonceGCInterval);
-    } else if (strcmp(param_str, "nonce_max_duration") == 0) {
+    } else if (strcasecmp(param_str, "nonce_max_duration") == 0) {
         parse_time_t(&noncemaxduration);
-    } else if (strcmp(param_str, "nonce_max_count") == 0) {
+    } else if (strcasecmp(param_str, "nonce_max_count") == 0) {
         parse_int((int *) &noncemaxuses);
-    } else if (strcmp(param_str, "nonce_strictness") == 0) {
+    } else if (strcasecmp(param_str, "nonce_strictness") == 0) {
         parse_onoff(&NonceStrictness);
-    } else if (strcmp(param_str, "check_nonce_count") == 0) {
+    } else if (strcasecmp(param_str, "check_nonce_count") == 0) {
         parse_onoff(&CheckNonceCount);
-    } else if (strcmp(param_str, "post_workaround") == 0) {
+    } else if (strcasecmp(param_str, "post_workaround") == 0) {
         parse_onoff(&PostWorkaround);
-    } else if (strcmp(param_str, "utf8") == 0) {
+    } else if (strcasecmp(param_str, "utf8") == 0) {
         parse_onoff(&utf8);
     } else
         Auth::Config::parse(scheme, n_configured, param_str);
diff --git a/src/auth/negotiate/Config.cc b/src/auth/negotiate/Config.cc
index 0f5b462..e46b98f 100644
--- a/src/auth/negotiate/Config.cc
+++ b/src/auth/negotiate/Config.cc
@@ -97,14 +97,14 @@ Auth::Negotiate::Config::Config() : keep_alive(1)
 void
 Auth::Negotiate::Config::parse(Auth::Config * scheme, int n_configured, char *param_str)
 {
-    if (strcmp(param_str, "program") == 0) {
+    if (strcasecmp(param_str, "program") == 0) {
         if (authenticateProgram)
             wordlistDestroy(&authenticateProgram);
 
         parse_wordlist(&authenticateProgram);
 
         requirePathnameExists("auth_param negotiate program", authenticateProgram->key);
-    } else if (strcmp(param_str, "keep_alive") == 0) {
+    } else if (strcasecmp(param_str, "keep_alive") == 0) {
         parse_onoff(&keep_alive);
     } else
         Auth::Config::parse(scheme, n_configured, param_str);
diff --git a/src/auth/ntlm/Config.cc b/src/auth/ntlm/Config.cc
index 135e927..27d7904 100644
--- a/src/auth/ntlm/Config.cc
+++ b/src/auth/ntlm/Config.cc
@@ -89,14 +89,14 @@ Auth::Ntlm::Config::Config() : keep_alive(1)
 void
 Auth::Ntlm::Config::parse(Auth::Config * scheme, int n_configured, char *param_str)
 {
-    if (strcmp(param_str, "program") == 0) {
+    if (strcasecmp(param_str, "program") == 0) {
         if (authenticateProgram)
             wordlistDestroy(&authenticateProgram);
 
         parse_wordlist(&authenticateProgram);
 
         requirePathnameExists("auth_param ntlm program", authenticateProgram->key);
-    } else if (strcmp(param_str, "keep_alive") == 0) {
+    } else if (strcasecmp(param_str, "keep_alive") == 0) {
         parse_onoff(&keep_alive);
     } else
         Auth::Config::parse(scheme, n_configured, param_str);
diff --git a/src/cache_cf.cc b/src/cache_cf.cc
index fedabc0..8886b68 100644
--- a/src/cache_cf.cc
+++ b/src/cache_cf.cc
@@ -2097,27 +2097,27 @@ parse_peer(CachePeer ** head)
     p->connection_auth = 2;    /* auto */
 
     while ((token = ConfigParser::NextToken())) {
-        if (!strcmp(token, "proxy-only")) {
+        if (!strcasecmp(token, "proxy-only")) {
             p->options.proxy_only = true;
-        } else if (!strcmp(token, "no-query")) {
+        } else if (!strcasecmp(token, "no-query")) {
             p->options.no_query = true;
-        } else if (!strcmp(token, "background-ping")) {
+        } else if (!strcasecmp(token, "background-ping")) {
             p->options.background_ping = true;
-        } else if (!strcmp(token, "no-digest")) {
+        } else if (!strcasecmp(token, "no-digest")) {
             p->options.no_digest = true;
-        } else if (!strcmp(token, "no-tproxy")) {
+        } else if (!strcasecmp(token, "no-tproxy")) {
             p->options.no_tproxy = true;
-        } else if (!strcmp(token, "multicast-responder")) {
+        } else if (!strcasecmp(token, "multicast-responder")) {
             p->options.mcast_responder = true;
 #if PEER_MULTICAST_SIBLINGS
-        } else if (!strcmp(token, "multicast-siblings")) {
+        } else if (!strcasecmp(token, "multicast-siblings")) {
             p->options.mcast_siblings = true;
 #endif
-        } else if (!strncmp(token, "weight=", 7)) {
+        } else if (!strncasecmp(token, "weight=", 7)) {
             p->weight = xatoi(token + 7);
-        } else if (!strncmp(token, "basetime=", 9)) {
+        } else if (!strncasecmp(token, "basetime=", 9)) {
             p->basetime = xatoi(token + 9);
-        } else if (!strcmp(token, "closest-only")) {
+        } else if (!strcasecmp(token, "closest-only")) {
             p->options.closest_only = true;
         } else if (!strncmp(token, "ttl=", 4)) {
             p->mcast.ttl = xatoi(token + 4);
@@ -2127,16 +2127,16 @@ parse_peer(CachePeer ** head)
 
             if (p->mcast.ttl > 128)
                 p->mcast.ttl = 128;
-        } else if (!strcmp(token, "default")) {
+        } else if (!strcasecmp(token, "default")) {
             p->options.default_parent = true;
-        } else if (!strcmp(token, "round-robin")) {
+        } else if (!strcasecmp(token, "round-robin")) {
             p->options.roundrobin = true;
-        } else if (!strcmp(token, "weighted-round-robin")) {
+        } else if (!strcasecmp(token, "weighted-round-robin")) {
             p->options.weighted_roundrobin = true;
 #if USE_HTCP
-        } else if (!strcmp(token, "htcp")) {
+        } else if (!strcasecmp(token, "htcp")) {
             p->options.htcp = true;
-        } else if (!strncmp(token, "htcp=", 5) || !strncmp(token, "htcp-", 5)) {
+        } else if (!strncasecmp(token, "htcp=", 5) || !strncmp(token, "htcp-", 5)) {
             /* Note: The htcp- form is deprecated, replaced by htcp= */
             p->options.htcp = true;
             char *tmp = xstrdup(token+5);
@@ -2147,19 +2147,19 @@ parse_peer(CachePeer ** head)
                     *nextmode = '\0';
                     ++nextmode;
                 }
-                if (!strcmp(mode, "no-clr")) {
+                if (!strcasecmp(mode, "no-clr")) {
                     if (p->options.htcp_only_clr)
                         fatalf("parse_peer: can't set htcp-no-clr and htcp-only-clr simultaneously");
                     p->options.htcp_no_clr = true;
-                } else if (!strcmp(mode, "no-purge-clr")) {
+                } else if (!strcasecmp(mode, "no-purge-clr")) {
                     p->options.htcp_no_purge_clr = true;
-                } else if (!strcmp(mode, "only-clr")) {
+                } else if (!strcasecmp(mode, "only-clr")) {
                     if (p->options.htcp_no_clr)
                         fatalf("parse_peer: can't set htcp no-clr and only-clr simultaneously");
                     p->options.htcp_only_clr = true;
-                } else if (!strcmp(mode, "forward-clr")) {
+                } else if (!strcasecmp(mode, "forward-clr")) {
                     p->options.htcp_forward_clr = true;
-                } else if (!strcmp(mode, "oldsquid")) {
+                } else if (!strcasecmp(mode, "oldsquid")) {
                     p->options.htcp_oldsquid = true;
                 } else {
                     fatalf("invalid HTCP mode '%s'", mode);
@@ -2167,15 +2167,15 @@ parse_peer(CachePeer ** head)
             }
             safe_free(tmp);
 #endif
-        } else if (!strcmp(token, "no-netdb-exchange")) {
+        } else if (!strcasecmp(token, "no-netdb-exchange")) {
             p->options.no_netdb_exchange = true;
 
-        } else if (!strcmp(token, "carp")) {
+        } else if (!strcasecmp(token, "carp")) {
             if (p->type != PEER_PARENT)
                 fatalf("parse_peer: non-parent carp peer %s/%d\n", p->host, p->http_port);
 
             p->options.carp = true;
-        } else if (!strncmp(token, "carp-key=", 9)) {
+        } else if (!strncasecmp(token, "carp-key=", 9)) {
             if (p->options.carp != true)
                 fatalf("parse_peer: carp-key specified on non-carp peer %s/%d\n", p->host, p->http_port);
             p->options.carp_key.set = true;
@@ -2183,21 +2183,21 @@ parse_peer(CachePeer ** head)
             for (; key; key = nextkey) {
                 nextkey=strchr(key,',');
                 if (nextkey) ++nextkey; // skip the comma, any
-                if (0==strncmp(key,"scheme",6)) {
+                if (0==strncasecmp(key,"scheme",6)) {
                     p->options.carp_key.scheme = true;
-                } else if (0==strncmp(key,"host",4)) {
+                } else if (0==strncasecmp(key,"host",4)) {
                     p->options.carp_key.host = true;
-                } else if (0==strncmp(key,"port",4)) {
+                } else if (0==strncasecmp(key,"port",4)) {
                     p->options.carp_key.port = true;
-                } else if (0==strncmp(key,"path",4)) {
+                } else if (0==strncasecmp(key,"path",4)) {
                     p->options.carp_key.path = true;
-                } else if (0==strncmp(key,"params",6)) {
+                } else if (0==strncasecmp(key,"params",6)) {
                     p->options.carp_key.params = true;
                 } else {
                     fatalf("invalid carp-key '%s'",key);
                 }
             }
-        } else if (!strcmp(token, "userhash")) {
+        } else if (!strcasecmp(token, "userhash")) {
 #if USE_AUTH
             if (p->type != PEER_PARENT)
                 fatalf("parse_peer: non-parent userhash peer %s/%d\n", p->host, p->http_port);
@@ -2206,44 +2206,44 @@ parse_peer(CachePeer ** head)
 #else
             fatalf("parse_peer: userhash requires authentication. peer %s/%d\n", p->host, p->http_port);
 #endif
-        } else if (!strcmp(token, "sourcehash")) {
+        } else if (!strcasecmp(token, "sourcehash")) {
             if (p->type != PEER_PARENT)
                 fatalf("parse_peer: non-parent sourcehash peer %s/%d\n", p->host, p->http_port);
 
             p->options.sourcehash = true;
 
-        } else if (!strcmp(token, "no-delay")) {
+        } else if (!strcasecmp(token, "no-delay")) {
 #if USE_DELAY_POOLS
             p->options.no_delay = true;
 #else
             debugs(0, DBG_CRITICAL, "WARNING: cache_peer option 'no-delay' requires --enable-delay-pools");
 #endif
-        } else if (!strncmp(token, "login=", 6)) {
+        } else if (!strncasecmp(token, "login=", 6)) {
             p->login = xstrdup(token + 6);
             rfc1738_unescape(p->login);
-        } else if (!strncmp(token, "connect-timeout=", 16)) {
+        } else if (!strncasecmp(token, "connect-timeout=", 16)) {
             p->connect_timeout = xatoi(token + 16);
-        } else if (!strncmp(token, "connect-fail-limit=", 19)) {
+        } else if (!strncasecmp(token, "connect-fail-limit=", 19)) {
             p->connect_fail_limit = xatoi(token + 19);
 #if USE_CACHE_DIGESTS
-        } else if (!strncmp(token, "digest-url=", 11)) {
+        } else if (!strncasecmp(token, "digest-url=", 11)) {
             p->digest_url = xstrdup(token + 11);
 #endif
 
-        } else if (!strcmp(token, "allow-miss")) {
+        } else if (!strcasecmp(token, "allow-miss")) {
             p->options.allow_miss = true;
-        } else if (!strncmp(token, "max-conn=", 9)) {
+        } else if (!strncasecmp(token, "max-conn=", 9)) {
             p->max_conn = xatoi(token + 9);
-        } else if (!strncmp(token, "standby=", 8)) {
+        } else if (!strncasecmp(token, "standby=", 8)) {
             p->standby.limit = xatoi(token + 8);
-        } else if (!strcmp(token, "originserver")) {
+        } else if (!strcasecmp(token, "originserver")) {
             p->options.originserver = true;
-        } else if (!strncmp(token, "name=", 5)) {
+        } else if (!strncasecmp(token, "name=", 5)) {
             safe_free(p->name);
 
             if (token[5])
                 p->name = xstrdup(token + 5);
-        } else if (!strncmp(token, "forceddomain=", 13)) {
+        } else if (!strncasecmp(token, "forceddomain=", 13)) {
             safe_free(p->domain);
 
             if (token[13])
@@ -2601,14 +2601,14 @@ parse_onoff(int *var)
     if (token == NULL)
         self_destruct();
 
-    if (!strcmp(token, "on")) {
+    if (!strcasecmp(token, "on")) {
         *var = 1;
-    } else if (!strcmp(token, "enable")) {
+    } else if (!strcasecmp(token, "enable")) {
         debugs(0, DBG_PARSE_NOTE(DBG_IMPORTANT), "WARNING: 'enable' is deprecated. Please update to use 'on'.");
         *var = 1;
-    } else if (!strcmp(token, "off")) {
+    } else if (!strcasecmp(token, "off")) {
         *var = 0;
-    } else if (!strcmp(token, "disable")) {
+    } else if (!strcasecmp(token, "disable")) {
         debugs(0, DBG_PARSE_NOTE(DBG_IMPORTANT), "WARNING: 'disable' is deprecated. Please update to use 'off'.");
         *var = 0;
     } else {
@@ -2642,16 +2642,16 @@ parse_tristate(int *var)
     if (token == NULL)
         self_destruct();
 
-    if (!strcmp(token, "on")) {
+    if (!strcasecmp(token, "on")) {
         *var = 1;
-    } else if (!strcmp(token, "enable")) {
+    } else if (!strcasecmp(token, "enable")) {
         debugs(0, DBG_PARSE_NOTE(DBG_IMPORTANT), "WARNING: 'enable' is deprecated. Please update to use value 'on'.");
         *var = 1;
-    } else if (!strcmp(token, "warn")) {
+    } else if (!strcasecmp(token, "warn")) {
         *var = -1;
-    } else if (!strcmp(token, "off")) {
+    } else if (!strcasecmp(token, "off")) {
         *var = 0;
-    } else if (!strcmp(token, "disable")) {
+    } else if (!strcasecmp(token, "disable")) {
         debugs(0, DBG_PARSE_NOTE(DBG_IMPORTANT), "WARNING: 'disable' is deprecated. Please update to use value 'off'.");
         *var = 0;
     } else {
@@ -3249,15 +3249,15 @@ parse_uri_whitespace(int *var)
     if (token == NULL)
         self_destruct();
 
-    if (!strcmp(token, "strip"))
+    if (!strcasecmp(token, "strip"))
         *var = URI_WHITESPACE_STRIP;
-    else if (!strcmp(token, "deny"))
+    else if (!strcasecmp(token, "deny"))
         *var = URI_WHITESPACE_DENY;
-    else if (!strcmp(token, "allow"))
+    else if (!strcasecmp(token, "allow"))
         *var = URI_WHITESPACE_ALLOW;
-    else if (!strcmp(token, "encode"))
+    else if (!strcasecmp(token, "encode"))
         *var = URI_WHITESPACE_ENCODE;
-    else if (!strcmp(token, "chop"))
+    else if (!strcasecmp(token, "chop"))
         *var = URI_WHITESPACE_CHOP;
     else {
         debugs(0, DBG_PARSE_NOTE(2), "ERROR: Invalid option '" << token << "': 'uri_whitespace' accepts 'strip', 'deny', 'allow', 'encode', and 'chop'.");
@@ -3399,19 +3399,19 @@ dump_memcachemode(StoreEntry * entry, const char *name, SquidConfig &config)
 peer_t
 parseNeighborType(const char *s)
 {
-    if (!strcmp(s, "parent"))
+    if (!strcasecmp(s, "parent"))
         return PEER_PARENT;
 
-    if (!strcmp(s, "neighbor"))
+    if (!strcasecmp(s, "neighbor"))
         return PEER_SIBLING;
 
-    if (!strcmp(s, "neighbour"))
+    if (!strcasecmp(s, "neighbour"))
         return PEER_SIBLING;
 
-    if (!strcmp(s, "sibling"))
+    if (!strcasecmp(s, "sibling"))
         return PEER_SIBLING;
 
-    if (!strcmp(s, "multicast"))
+    if (!strcasecmp(s, "multicast"))
         return PEER_MULTICAST;
 
     debugs(15, DBG_CRITICAL, "WARNING: Unknown neighbor type: " << s);
@@ -3689,11 +3689,11 @@ parse_port_option(AnyP::PortCfgPointer &s, char *token)
     } else if (strcmp(token, "connection-auth=on") == 0) {
         s->connection_auth_disabled = false;
     } else if (strncmp(token, "disable-pmtu-discovery=", 23) == 0) {
-        if (!strcmp(token + 23, "off"))
+        if (!strcasecmp(token + 23, "off"))
             s->disable_pmtu_discovery = DISABLE_PMTU_OFF;
-        else if (!strcmp(token + 23, "transparent"))
+        else if (!strcasecmp(token + 23, "transparent"))
             s->disable_pmtu_discovery = DISABLE_PMTU_TRANSPARENT;
-        else if (!strcmp(token + 23, "always"))
+        else if (!strcasecmp(token + 23, "always"))
             s->disable_pmtu_discovery = DISABLE_PMTU_ALWAYS;
         else
             self_destruct();
@@ -3719,7 +3719,7 @@ parse_port_option(AnyP::PortCfgPointer &s, char *token)
             s->tcp_keepalive.timeout = xatoui(t);
         }
 #if USE_OPENSSL
-    } else if (strcmp(token, "sslBump") == 0) {
+    } else if (strcasecmp(token, "sslBump") == 0) {
         debugs(3, DBG_CRITICAL, "WARNING: '" << token << "' is deprecated " <<
                "in " << cfg_directive << ". Use 'ssl-bump' instead.");
         s->flags.tunnelSslBumping = true;
diff --git a/src/dns_internal.cc b/src/dns_internal.cc
index 699301e..ef0644d 100644
--- a/src/dns_internal.cc
+++ b/src/dns_internal.cc
@@ -396,7 +396,7 @@ idnsParseResolvConf(void)
 
         if (NULL == t) {
             continue;
-        } else if (strcmp(t, "nameserver") == 0) {
+        } else if (strcasecmp(t, "nameserver") == 0) {
             t = strtok(NULL, w_space);
 
             if (NULL == t)
@@ -406,7 +406,7 @@ idnsParseResolvConf(void)
 
             idnsAddNameserver(t);
             result = true;
-        } else if (strcmp(t, "domain") == 0) {
+        } else if (strcasecmp(t, "domain") == 0) {
             idnsFreeSearchpath();
             t = strtok(NULL, w_space);
 
@@ -416,7 +416,7 @@ idnsParseResolvConf(void)
             debugs(78, DBG_IMPORTANT, "Adding domain " << t << " from " << _PATH_RESCONF);
 
             idnsAddPathComponent(t);
-        } else if (strcmp(t, "search") == 0) {
+        } else if (strcasecmp(t, "search") == 0) {
             idnsFreeSearchpath();
             while (NULL != t) {
                 t = strtok(NULL, w_space);
@@ -428,7 +428,7 @@ idnsParseResolvConf(void)
 
                 idnsAddPathComponent(t);
             }
-        } else if (strcmp(t, "options") == 0) {
+        } else if (strcasecmp(t, "options") == 0) {
             while (NULL != t) {
                 t = strtok(NULL, w_space);
 
diff --git a/tools/cachemgr.cc b/tools/cachemgr.cc
index 8c7729e..1ec4e15 100644
--- a/tools/cachemgr.cc
+++ b/tools/cachemgr.cc
@@ -1018,23 +1018,23 @@ read_request(void)
 
         rfc1738_unescape(q);
 
-        if (0 == strcmp(t, "server") && strlen(q))
+        if (0 == strcasecmp(t, "server") && strlen(q))
             req->server = xstrdup(q);
-        else if (0 == strcmp(t, "host") && strlen(q))
+        else if (0 == strcasecmp(t, "host") && strlen(q))
             req->hostname = xstrdup(q);
-        else if (0 == strcmp(t, "port") && strlen(q))
+        else if (0 == strcasecmp(t, "port") && strlen(q))
             req->port = atoi(q);
-        else if (0 == strcmp(t, "user_name") && strlen(q))
+        else if (0 == strcasecmp(t, "user_name") && strlen(q))
             req->user_name = xstrdup(q);
-        else if (0 == strcmp(t, "passwd") && strlen(q))
+        else if (0 == strcasecmp(t, "passwd") && strlen(q))
             req->passwd = xstrdup(q);
-        else if (0 == strcmp(t, "auth") && strlen(q))
+        else if (0 == strcasecmp(t, "auth") && strlen(q))
             req->pub_auth = xstrdup(q), decode_pub_auth(req);
-        else if (0 == strcmp(t, "operation"))
+        else if (0 == strcasecmp(t, "operation"))
             req->action = xstrdup(q);
-        else if (0 == strcmp(t, "workers") && strlen(q))
+        else if (0 == strcasecmp(t, "workers") && strlen(q))
             req->workers = xstrdup(q);
-        else if (0 == strcmp(t, "processes") && strlen(q))
+        else if (0 == strcasecmp(t, "processes") && strlen(q))
             req->processes = xstrdup(q);
     }
     safe_free(t);
@@ -1254,7 +1254,7 @@ check_target_acl(const char *hostname, int port)
             if (strcmp(token, "*") == 0)
 
                 ;   /* Wildcard port specification */
-            else if (strcmp(token, "any") == 0)
+            else if (strcasecmp(token, "any") == 0)
 
                 ;   /* Wildcard port specification */
             else if (sscanf(token, "%d", &i) != 1)