diff --git a/nmap-os-db b/nmap-os-db
index ff156d56c..80eb6bb35 100644
--- a/nmap-os-db
+++ b/nmap-os-db
@@ -76,7 +76,7 @@ IE(DFI=N%T=40%TG=40%TOSI=S%CD=S%SI=S%DLI=S)
 
 Fingerprint Linux 2.6.16-2-686 Debian
 Class Linux | Linux | 2.6.X | general purpose
-SEQ(SP=CD%GCD=<5%ISR=CC%TI=Z%II=I%TS=8)
+SEQ(SP=B9-D1%GCD=<5%ISR=C0-D5%TI=Z%II=I%TS=8)
 OPS(O1=M5B4ST11NW2%O2=M5B4ST11NW2%O3=M5B4NNT11NW2%O4=M5B4ST11NW2%O5=M5B4ST11NW2%O6=M5B4ST11)
 WIN(W1=16A0%W2=16A0%W3=16A0%W4=16A0%W5=16A0%W6=16A0)
 ECN(R=Y%DF=Y%T=40%TG=40%W=16D0%O=M5B4NNSNW2%CC=N%Q=)
@@ -109,7 +109,7 @@ IE(DFI=N%T=40%TG=40%TOSI=S%CD=S%SI=S%DLI=S)
 
 Fingerprint Linux 2.6.17.6 i686 (custom compiled)
 Class Linux | Linux | 2.6.X | general purpose
-SEQ(SP=C5%GCD=<5%ISR=C6%TI=Z%II=I%TS=8)
+SEQ(SP=B8-CF%GCD=<5%ISR=BB-D6%TI=Z%II=I%TS=8)
 OPS(O1=M5B4ST11NW6%O2=M5B4ST11NW6%O3=M5B4NNT11NW6%O4=M5B4ST11NW6%O5=M5B4ST11NW6%O6=M5B4ST11)
 WIN(W1=16A0%W2=16A0%W3=16A0%W4=16A0%W5=16A0%W6=16A0)
 ECN(R=Y%DF=Y%T=40%TG=40%W=16D0%O=M5B4NNSNW6%CC=N%Q=)
@@ -125,7 +125,7 @@ IE(DFI=N%T=40%TG=40%TOSI=S%CD=S%SI=S%DLI=S)
 
 Fingerprint Linux 2.6.17.8 SMP i686 (custom compiled)
 Class Linux | Linux | 2.6.X | general purpose
-SEQ(SP=C6%GCD=<5%ISR=CE%TI=Z%II=I%TS=A)
+SEQ(SP=AF-CF%GCD=<5%ISR=C1-D5%TI=Z%II=I%TS=A)
 OPS(O1=M5B4ST11NW7%O2=M5B4ST11NW7%O3=M5B4NNT11NW7%O4=M5B4ST11NW7%O5=M5B4ST11NW7%O6=M5B4ST11)
 WIN(W1=16A0%W2=16A0%W3=16A0%W4=16A0%W5=16A0%W6=16A0)
 ECN(R=Y%DF=Y%T=40%TG=40%W=16D0%O=M5B4NNSNW7%CC=N%Q=)
@@ -141,7 +141,7 @@ IE(DFI=N%T=40%TG=40%TOSI=S%CD=S%SI=S%DLI=S)
 
 Fingerprint Linux 2.6.17.8 SMP i686 (custom compiled)
 Class Linux | Linux | 2.6.X | general purpose
-SEQ(SP=CA%GCD=<5%ISR=D0%TI=Z%II=I%TS=A)
+SEQ(SP=BC-D1%GCD=<5%ISR=C3-D8%TI=Z%II=I%TS=A)
 OPS(O1=M400CST11NW7%O2=M400CST11NW7%O3=M400CNNT11NW7%O4=M400CST11NW7%O5=M400CST11NW7%O6=M400CST11)
 WIN(W1=8000%W2=8000%W3=8000%W4=8000%W5=8000%W6=8000)
 ECN(R=Y%DF=Y%T=40%TG=40%W=8018%O=M400CNNSNW7%CC=N%Q=)
@@ -175,7 +175,7 @@ IE(DFI=S%T=80%TG=80%TOSI=Z%CD=Z%SI=S%DLI=S)
 # Windows XP Professional SP2: Version 5.1 (2600.xpsp_sp2_rtm.040803-2158 : Service Pack 2. firewall disabled)
 Fingerprint Microsoft Windows XP SP2 (firewall disabled)
 Class Microsoft | Windows | NT/2K/XP | general purpose
-SEQ(SP=FB%GCD=<5%ISR=10D%TI=I%II=I%SS=S)
+SEQ(SP=C6-100%GCD=<7%ISR=101-110%TI=I%II=I%SS=S)
 OPS(O1=M4ECNW1NNT00NNS%O2=M4ECNW1NNT00NNS%O3=M4ECNW1NNT00%O4=M4ECNW1NNT00NNS%O5=M4ECNW1NNT00NNS%O6=M4ECNNT00NNS)
 WIN(W1=FFFF%W2=FFFF%W3=FFFF%W4=FFFF%W5=FFFF%W6=FFFF)
 ECN(R=Y%DF=Y%T=80%TG=80%W=FFFF%O=M4ECNW1NNS%CC=N%Q=)
@@ -192,7 +192,7 @@ IE(DFI=S%T=80%TG=80%TOSI=Z%CD=Z%SI=S%DLI=S)
 # Windows XP Professional SP2: Version 5.1 (2600.xpsp_sp2_gdr.050301-1519 : Service Pack 2. firewall disabled)
 Fingerprint Microsoft Windows XP SP2 (firewall disabled)
 Class Microsoft | Windows | NT/2K/XP | general purpose
-SEQ(SP=F3%GCD=<7%ISR=10F%TI=I%II=I%SS=S)
+SEQ(SP=DC-100%GCD=<5%ISR=100-110%TI=I%II=I%SS=S)
 OPS(O1=M5B4NW0NNT00NNS%O2=M5B4NW0NNT00NNS%O3=M5B4NW0NNT00%O4=M5B4NW0NNT00NNS%O5=M5B4NW0NNT00NNS%O6=M5B4NNT00NNS)
 WIN(W1=FFFF%W2=FFFF%W3=FFFF%W4=FFFF%W5=FFFF%W6=FFFF)
 ECN(R=Y%DF=Y%T=80%TG=80%W=FFFF%O=M5B4NW0NNS%CC=N%Q=)