| Defending against a Denial-of-Service Attack on TCP Recent countries visiting this post |  |
 | 3 | Russian Federation |
 | 3 | United States |
 | 1 | Ukraine |
| Defending against a Denial-of-Service Attack on TCP Recent countries visiting this post | |
| 3 | Russian Federation |
| 3 | United States |
| 1 | Ukraine |