linux firewall

My /var/log/messages is showing a lot of these and wondering what I can do to stop these requests:

Oct  7 07:13:26 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=37.203.214.106 DST=98.142.208.219 LEN=40 TOS=0x00 PREC=0x00 TTL=240 ID=35931 PROTO=TCP SPT=56084 DPT=3128 WINDOW=1024 RES=0x00 SYN
Oct  7 07:13:49 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=37.203.214.106 DST=98.142.222.58 LEN=40 TOS=0x00 PREC=0x00 TTL=240 ID=16416 PROTO=TCP SPT=56084 DPT=3128 WINDOW=1024 RES=0x00 SYN U
Oct  7 07:13:53 linux kernel: Firewall: *UDP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=187.210.143.49 DST=98.142.208.220 LEN=64 TOS=0x00 PREC=0x00 TTL=56 ID=0 DF PROTO=UDP SPT=53 DPT=37882 LEN=44
Oct  7 07:14:37 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=37.203.214.106 DST=98.142.208.216 LEN=40 TOS=0x00 PREC=0x00 TTL=240 ID=34181 PROTO=TCP SPT=56084 DPT=3128 WINDOW=1024 RES=0x00 SYN
Oct  7 07:14:47 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=37.203.214.106 DST=98.142.222.61 LEN=40 TOS=0x00 PREC=0x00 TTL=240 ID=58330 PROTO=TCP SPT=56084 DPT=3128 WINDOW=1024 RES=0x00 SYN U
Oct  7 07:14:50 linux kernel: Firewall: *UDP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=194.183.77.143 DST=98.142.208.219 LEN=77 TOS=0x00 PREC=0x00 TTL=244 ID=14861 PROTO=UDP SPT=53 DPT=37881 LEN=57
Oct  7 07:15:11 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=125.99.121.178 DST=98.142.208.216 LEN=60 TOS=0x00 PREC=0x00 TTL=45 ID=30108 DF PROTO=TCP SPT=43468 DPT=23 WINDOW=5840 RES=0x00 SYN
Oct  7 07:15:11 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=125.99.121.178 DST=98.142.208.218 LEN=60 TOS=0x00 PREC=0x00 TTL=45 ID=55722 DF PROTO=TCP SPT=60119 DPT=23 WINDOW=5840 RES=0x00 SYN
Oct  7 07:15:11 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=125.99.121.178 DST=98.142.208.219 LEN=60 TOS=0x00 PREC=0x00 TTL=45 ID=23382 DF PROTO=TCP SPT=51982 DPT=23 WINDOW=5840 RES=0x00 SYN
Oct  7 07:15:11 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=125.99.121.178 DST=98.142.208.220 LEN=60 TOS=0x00 PREC=0x00 TTL=45 ID=18737 DF PROTO=TCP SPT=52804 DPT=23 WINDOW=5840 RES=0x00 SYN
Oct  7 07:15:11 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=125.99.121.178 DST=98.142.208.221 LEN=60 TOS=0x00 PREC=0x00 TTL=45 ID=49340 DF PROTO=TCP SPT=45322 DPT=23 WINDOW=5840 RES=0x00 SYN
Oct  7 07:15:14 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=125.99.121.178 DST=98.142.208.216 LEN=60 TOS=0x00 PREC=0x00 TTL=45 ID=30109 DF PROTO=TCP SPT=43468 DPT=23 WINDOW=5840 RES=0x00 SYN
Oct  7 07:15:20 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=125.99.121.178 DST=98.142.208.216 LEN=60 TOS=0x00 PREC=0x00 TTL=45 ID=30110 DF PROTO=TCP SPT=43468 DPT=23 WINDOW=5840 RES=0x00 SYN
Oct  7 07:15:20 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=125.99.121.178 DST=98.142.208.218 LEN=60 TOS=0x00 PREC=0x00 TTL=45 ID=55724 DF PROTO=TCP SPT=60119 DPT=23 WINDOW=5840 RES=0x00 SYN
Oct  7 07:15:20 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=125.99.121.178 DST=98.142.208.220 LEN=60 TOS=0x00 PREC=0x00 TTL=45 ID=18739 DF PROTO=TCP SPT=52804 DPT=23 WINDOW=5840 RES=0x00 SYN
Oct  7 07:17:06 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=94.102.49.193 DST=98.142.208.218 LEN=40 TOS=0x08 PREC=0x20 TTL=242 ID=54321 PROTO=TCP SPT=51400 DPT=21320 WINDOW=65535 RES=0x00 SYN
Oct  7 07:17:12 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=94.102.49.193 DST=98.142.208.222 LEN=40 TOS=0x08 PREC=0x20 TTL=242 ID=54321 PROTO=TCP SPT=38489 DPT=21320 WINDOW=65535 RES=0x00 SYN
Oct  7 07:17:21 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=93.174.93.130 DST=98.142.208.216 LEN=40 TOS=0x08 PREC=0x20 TTL=17 ID=26437 PROTO=TCP SPT=5631 DPT=5631 WINDOW=50723 RES=0x00 SYN UR
Oct  7 07:17:21 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=93.174.93.130 DST=98.142.208.223 LEN=40 TOS=0x08 PREC=0x20 TTL=17 ID=26437 PROTO=TCP SPT=5631 DPT=5631 WINDOW=50723 RES=0x00 SYN UR
Oct  7 07:17:21 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=93.174.93.130 DST=98.142.208.221 LEN=40 TOS=0x08 PREC=0x20 TTL=17 ID=26437 PROTO=TCP SPT=5631 DPT=5631 WINDOW=50723 RES=0x00 SYN UR
Oct  7 07:17:21 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=93.174.93.130 DST=98.142.208.222 LEN=40 TOS=0x08 PREC=0x20 TTL=17 ID=26437 PROTO=TCP SPT=5631 DPT=5631 WINDOW=50723 RES=0x00 SYN UR
Oct  7 07:17:21 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=93.174.93.130 DST=98.142.208.219 LEN=40 TOS=0x08 PREC=0x20 TTL=17 ID=26437 PROTO=TCP SPT=5631 DPT=5631 WINDOW=50723 RES=0x00 SYN UR
Oct  7 07:17:26 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=94.102.49.193 DST=98.142.222.58 LEN=40 TOS=0x08 PREC=0x20 TTL=242 ID=54321 PROTO=TCP SPT=47740 DPT=21320 WINDOW=65535 RES=0x00 SYN
Oct  7 07:17:38 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=94.102.49.193 DST=98.142.222.60 LEN=40 TOS=0x08 PREC=0x20 TTL=242 ID=54321 PROTO=TCP SPT=52205 DPT=21320 WINDOW=65535 RES=0x00 SYN
Oct  7 07:17:47 linux kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=94.102.49.193 DST=98.142.208.219 LEN=40 TOS=0x08 PREC=0x20 TTL=242 ID=54321 PROTO=TCP SPT=43796 DPT=21320 WINDOW=65535 RES=0x00 SYN
Oct  7 07:17:56 linux kernel: Firewall: *UDP_IN Blocked* IN=eth0 OUT= MAC=00:25:90:04:cd:9c:00:22:0c:ab:53:d1:08:00 SRC=89.31.34.4 DST=98.142.208.218 LEN=130 TOS=0x00 PREC=0x00 TTL=101 ID=28247 DF PROTO=UDP SPT=53 DPT=37880 LEN=110
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Robert SaylorSenior DeveloperAsked:
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Dave BaldwinFixer of ProblemsCommented:
Since they're coming from all over the world (Sweden, Mexico, San Marino, and India on the ones I checked), I don't know that there is anything you can do except keep your firewall working.  You can't stop people from trying to access your servers.  All you can do is block them and it looks like your firewall is doing that.
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Robert SaylorSenior DeveloperAuthor Commented:
ok but just checking the requests look ok(normal) nothing to worry about?
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Dan CraciunIT ConsultantCommented:
Port 53 is DNS, 3128 is Squid, 5631 is PcAnywhere and so on.

These look like probes (trying to see if a service responds), so they're normal on a public network.

You should always worry, but not over the packages your firewall rejects, but over the packages it accepts :)

HTH,
Dan
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